bluuebunny/crossref_metadata_2025 huggingface dataset:
Short Communication: Species confirmation of juvenile cloudy grouper, Epinephelus erythrurus (Valenciennes, 1828), based on a morphologic analysis and partial CO1 gene sequencing
Authors: ARIYANTI YANTI , FARAJALLAH ACHMAD
Published: March 2019

Abstract. Ariyanti Y, Farajallah A. 2019. Species confirmation of juvenile cloudy grouper, Epinephelus erythrurus (Valenciennes, 1828), based on a morphologic analysis and partial CO1 gene sequencing. Biodiversitas 20: 914-921. The genus Epinephelus is the most species among the genera within the subfamily Epinephelinae. Species identification techniques for groupers, especially in the Epinephelus, are commonly based on color patterns and a suite of morphological characters, including body shape and the size and number of fins, scales and gill rakers. In some species, juveniles are morphologically distinct from adults of the same species, making morphological identification highly problematic. This present work will provide some morphological description or variations of juveniles that have been identified as Epinephelus erythrurus based on CO1 sequences. Further, the present study demonstrates that a molecular genetic technique, based on partial sequencing of the mitochondrial CO1 gene, may be used for the rapid species confirmation of every developmental stage and phase of an organism (juvenile E. erythrurus). Two DNA sequences of E. erythrurus from the Pangandaran District (7o43’8.31”S 108o30’11.59”E) have been submitted to GenBank under accession numbers KP998441 and KP998442.
Bacteria and methanogen community in the rumen fed different levels of grass-legume silages
Authors: RIDWAN RONI , RUSMANA IMAN , WIDYASTUTI YANTYATI , WIRYAWAN KOMANG G. , PRASETYA BAMBANG , SAKAMOTO MITSUO , OHKUMA MORIYA
Published: March 2019

Abstract. Ridwan R, Rusmana I, Widyastuti Y, Wiryawan KG, Prasetya B, Sakamoto M, Ohkuma M. 2019. Bacteria and methanogen community in the rumen fed different levels of grass-legume silages. Biodiversitas 20: 1055-1062. This study aimed to investigate the effects of dietary grass-legume silages on the microbial community by using a culture-independent approach. Treatments consisted of R0: 50% Pennisetum purpureum and 50 % concentrate; R1: 20% P. purpureum, 50 % concentrate, and 30% grass-legumes silage; R2: 20% P. purpureum, 35 % concentrate, and 45% grass-legumes silage; and R3; 20% P. purpureum, 20 % concentrate, and 60% grass-legumes silage. The rumen fluid obtained from fistulated cattle was used for T-RFLP, 16S rDNA clone library, and qPCR analyses. The results indicated that bacterial diversity was dominated by Bacteroidetes, Firmicutes, and methanogen by Methanobacteriales, based on partial 16S rDNA sequences. The microbial communities were dominated by Prevotella brevis, P. ruminicola, Succiniclasticum ruminis, and Methanobrevibacter ruminantium, M. smithi, M. thueri, and M. millerae. The increasing silage diet in a rumen suppressed methanogenesis by reducing population distribution of Methanobacteriales, directly or indirectly, by reducing the diversity of bacterial populations. Generally, the increase silage in the diet changed the bacterial and methanogen community. Grass-legume silage diets of less than 45% are potential for ruminant diet to reduce methane production by a decrease of 4% in the relative distribution of methanogens in the rumen.
Políticas de convivencia escolar en tiempos de rendición de cuentas
Authors: Ascorra Paula , Carrasco Aguilar Claudia , López Verónica , Morales Macarena
Published: March 2019

Durante los últimos 15 años, Chile ha implementado tres leyes y diversas políticas educativas orientadas a mejorar, promover y desarrollar la convivencia escolar (CE). Sin embargo, a los distintos cuerpos legales subyacen distintas lógicas de comprensión y acción. Con el objetivo de evidenciar las contradicciones y nudos críticos que presentan los instrumentos que componen la política pública sobre CE, se realizó un análisis documental de leyes y otros documentos claves. El análisis de contenido permitió identificar cuatro nudos críticos: contradicción entre la declaración y la medición de una educación de calidad; disposición explícita de sanciones institucionales que contrasta con la ambigüedad sobre la disposición de apoyos institucionales; concepciones contradictorias de la convivencia escolar; y tratamiento diferenciado de escuelas públicas v/s privadas. Se discuten las posibilidades de promover una CE democrática en un ambiente de política educativa altamente orientado por la rendición de cuentas.
Teaching communication skills with technology: Creating a virtual patient for medical students
Authors: Sezer Baris , Sezer Tufan Asli
Published: March 2019

Virtual patient (VP) is a concept used in the teaching of communication skills, and like physical examinations and other professional skills, must be taught with utmost care. In Turkey, as VPs are yet to be used in medical training, the usual practice when teaching such skills is to use standardised patients (individuals pretending to be patients). The main purpose of this study was to design, develop and evaluate a 3D VP application that can move, has speech-over lip sync, allows written communication and is supported by a strong scenario to improve the communication skills of students. The study was designed and carried out using developmental research methods. The implementation phase involved a pretest posttest quasi-experimental design. The participants in the study consisted of academics specialising in medicine, software experts, an education technology expert, an assessment and evaluation expert, and medical students. The study found that VP applications were accepted by students and were as effective as standardised patients for the teaching of communication skills. The students reported that the VP application developed was very successful in terms of visual and behavioural reality.
Diagnostic performance of serum CK-MB, TNF-α and hs-CRP in children with viral myocarditis
Authors: Chen Jia , Deng Yuanying
Published: March 2019

Objective

The purpose of this study was to investigate the diagnostic performance of serum CK-MB, TNF-α and hs-CRP in children with viral myocarditis (VMC).

Methods

Fifty-six children with confirmed diagnosis of VMC were included in this study. Of the included 56 cases, 25 subjects were in acute and other 31 were in the recovery stage. A contemporaneous control group of 22 children were included for comparison. The serum concentration of CK-MB, TNF-α and hs-CRP were examined in both VMC and control groups.

Results

The serum concentration of CK-MB, TNF-α and hs-CRP were 31.77±9.48 (UL), 143.11±23.27 (ng/L) and 8.10±1.94(mg/L) for acute stage VMC; 12.72±4.99 (UL), 83.15±13.35 (ng/L) and 4.07±1.12 (mg/L) for recovery stage VMC; 8.11±3.20 (UL), 68.27±12.55 (ng/L) and 2.56±1.27 (mg/L) for control group respectively; The serum concentration of CK-MB, TNF-α and hs-CRP were significantly different between acute stage VMC, recovery stage VMC and control groups (p<0.05); Significant positive correlation between CK-MB and hs-CRP were found in acute stage VMC (r=0.54, p=0.01) and recovery stage VMC (r=0.37, p=0.04). Using serum CK-MB, TNF-α and hs-CRP as the reference, the differential diagnosis sensitivity for acute and recovery stage VMC were 87.10 (70.17-96.37)%, 87.10 (70.17-96.37)% and 77.42 (58.90-90.415)%; The specificity were 92.00 (73.97-99.02)%, 96.00 (79.65-99.90)% and 100.00 (86.28-100.00)% respectively.

Conclusion

Serum concentration of CK-MB, TNF-α and hs-CRP in children with VMC were significant increased especially in acute stage, which can be used as biomarkers for VMC diagnosis.
Effect of Lactobacillus plantarum supplementation on production performance and fecal microbial composition in laying hens
Authors: Qiao Hongxing , Shi Hongtao , Zhang Liheng , Song Yuzhen , Zhang Xiaojing , Bian Chuanzhou
Published: March 2019

The present study was performed to investigate the effects of dietary supplementation with Lactobacillus plantarum (CGMCC1.557) on egg production and fecal microbiota composition in laying hens. Sixty Hy-Line Brown laying hens (18 weeks old) were randomly divided into two groups. The control group was fed a basal diet only, and the test group was fed basal diet supplemented with a final concentration of 1.0 × 109 CFU/mL during the 10-week experimental period. Egg production and fecal microbiota composition were both assessed in 28-week-old hens using high-throughput sequencing technology. The results showed that, compared with the control group, the test group exhibited increased laying and feed intake rates (p < 0.05). At the genus level, Lactobacillus was more abundant in the test group compared with the control group (p < 0.05). Conversely, Romboutsia was more abundant in the control group compared with the test group (p < 0.05). This study provides us with an insight into the potential use of L. plantarum as a food supplement in the laying hen industry. the study also provides us with a better understanding of the interplay between L. plantarum and the fecal microbiota of laying hens.
Modelling of Moisture Content, β-Carotene and Deformation Variation during Drying of Carrot
Authors: Timoumi Souad , Mihoubi Daoued , Zagrouba Fethi
Published: March 2019

In this work a two-dimensional convective drying model of heat, mass and momentum transfer is developed taking account of the shrinkage and the quality degradation of carrots. The kinetics of β-carotene degradation in dried agricultural product is considered to follow a first-order reaction. Temperature dependence of the reaction rate constants followed the Arrhenius relationship. The developed model, describes the strong coupling between mass, heat and momentum transfers, shrinkage and quality (β-carotene) changes and takes into account the dehydration of the solid caused by a temperature increase.
Implicit Coordination: Acting Quasi-Jointly on Implicit Shared Intentions
Authors: Martens Judith , Roelofs Luke
Published: March 2019

We identify a social phenomenon in which large numbers of people seem to work towards a shared goal without explicitly trying to do so. We argue that this phenomenon – implicit coordination – is best understood as a form of joint agency differing from the forms most commonly discussed in the literature in the same way that individual actions driven by “explicit” intentions (those available for reflection and report) differ from individual actions driven by “implicit” intentions (those not thus available). More precisely, implicit coordination is both analogous to wholly implicit individual intentions, and constituted by the partly implicit intentions of participants. We discuss the significance of this category for action theory, social ontology, and social criticism.
The crystal structure of (E)-N′-((2-hydroxynaphthalen-1-yl)methylene)-2-phenylacetohydrazide, C19H16O2N2
Authors: Xi-Shi Tai , Li-Hua Wang , Li-Li Liu , Xiao-Jing Zhou
Published: March 2019

C19H16O2N2, orthorhombic, Pbca (no. 61), a = 12.200(2) Å, b = 9.5800(19) Å, c = 25.060(5) Å, V = 2928.9(10) Å3, Z = 8, R
gt(F) = 0.0818, wR
ref(F
2) = 0.2438, T = 293(2) K.
Diagrammatic relations of probative strength and inferential progression through semiotics
Authors: Franco Juliana Rocha , Borges Priscila Monteiro
Published: March 2019

The purpose of this article is to explore the concept of diagram and diagrammatic reasoning involving semiotics in its three branches and not only in speculative grammar. We will concentrate on the apprehension of the movement of reasoning, which diagrammatically begins with speculative grammar, runs through critical logic, and consolidates at methodeutics. We seek to apply the trichotomic logic of Peirce to list the modes of reasoning with diagrams. Our intention is to move away from the categorization as taxonomy, and try to understand how sign classes can be used in the inferential process. Thus, considering a possible relationship between the hypoicon, the three classes of iconic signs in the system of ten classes of signs, and the methods of inference, we suggest three subclasses of diagrams in inferential terms that may offer a grading system, which would present degrees of accuracy or probative capacity.
Lead sample processing and analysis by atomic absorption spectrophotometry v1
Authors: Mora Gabriela
Published: March 2019

De los metales que conocemos en la actualidad, se conocen tres metales pesados que en sobreexposición podrían considerarse tóxicos. Uno de ellos es el cadmio que se encuentra en la naturaleza asociado a otros metales generalmente y que actualmente está bastante controlado y no se detectan muchas intoxicaciones por cadmio. Por último, el plomo, sobre el que está enfocado el trabajo ya que este metal aun forma parte de muchas cosas de la vida cotidiana, el material con el que están construidas las casas, los juguetes de los niños, las joyas. La intoxicación por plomo se llama saturnismo o plumbismo y se caracteriza por problemas hemáticos, problemas gastrointestinales extendiéndose al sistema nervioso, riñón y corazón. Actualmente existen varios métodos de determinación de plomo, el más usado es la espectrofotometría. la intoxicación por metales pesados, centrando el estudio sobre el plomo ya que en la actualidad sigue siendo un problema de salud grave, sobre todo en niños y en el ámbito profesional.Se centra en la recopilación acerca de la determinación del plomo en sangre por los distintos métodos analíticos.
Korelasi Ukuran Tubuh terhadap Bobot Badan Sapi Aceh Umur Sapih dan Umur Satu Tahun
Authors: Ikhsanuddin Ikhsanuddin , Nurgiartiningsih Veronica Margareta Ani , Kuswati Kuswati , Zainuddin Zainuddin
Published: March 2019

ABSTRAK. Penelitian ini bertujuan untuk menghitung nilai korelasi antara bobot badan dengan ukuran tubuh serta mengestimasi bobot badan (BB) berdasarkan ukuran tubuh. Materi penelitian ini adalah 159 ekor sapi Aceh umur sapih dan umur satu tahun. Metode penelitian adalah studi kasus berdasarkan data bobot sapih dan bobot satu tahun beserta ukuran tubuh sapi Aceh. Hasil penelitian pada sapi Aceh umur sapih menunjukkan korelasi bobot badan dengan lingkar dada, panjang badan, dan tinggi pundak berturut-turut 0.65, 0,56 dan 0,64, sedangkan nilai determinasinya adalah 0,42, 0,30 dan 0,41. Model regresi untuk estimasi bobot badan umur sapih yaitu BB= -30,23 + 0,47LD + 0,13PB + 0,50TP. Untuk sapi Aceh umur satu tahun nilai korelasi bobot badan dengan lingkar dada, panjang badan, dan tinggi pundak berturut-turut 0.69, 0,58 dan 0,55, nilai determinasinya adalah 0,47, 0,34 dan 0,30. Persamaan garis regresi untuk sapi Aceh umur satu tahun yaitu BB = -44,96 + 0,72LD + 0,46PB + 0,24TP. Berdasarkan hasil analisis korelasi menunjukkan bahwa korelasi lingkar dada dengan bobot badan memiliki hubungan paling kuat dibandingkan dengan panjang badan dan tinggi pundak.  (Correlation between body size and body weight of Aceh Cattle at weaning and yearling age) ABSTRACT. This study aimed to evaluate the correlation between body weight and body size, as well to estimate body weight based on body size. A total of 159 Aceh cattle at weaning and yearling age were used in this study. The method used was a case study based on the data on weaning weight, yearling weight, and body size of Aceh cattle. The results showed that at the weaning age, the correlation values between body weight (BW) with chest circumference (CC), body length (BL), and shoulder height (SH) were 0.65, 0.56, and 0.64, respectively, while the determinant values were 0.42, 0.30, and 0.41, respectively. Regression model for estimating body weight at weaning age was BW = -30.23 + 0.47CC + 0.13BL + 0.50SH. At the yearling age, the correlation values of body weight with chest circumference, body length, and shoulder height were 0.69, 0.58, and 0.55, respectively, while the determinant values were 0.47, 0.34, and 0.30, respectively. The regression equation for yearling Aceh cattle was BW = -44.96 + 0.72CC + 0.46BL + 0.24SH. This study showed that the highest correlation was observed on the body weight with chest circumference compared to those with either body length or shoulder height.
Short Term Analysis of New Single-Piece Aspheric Diffractive Trifocal Intraocular Lens Implantation
Authors: Pershin K. B. , Pashinova N. F. , Konovalova M. M. , Tsygankov A. Yu. , Konovalov M. E. , Temirov N. E.
Published: March 2019

Purpose. Evaluation of short-term (up to 9 months) results of new one-piece aspherical diffractive trifocal intraocular lens implantation. Patients and Methods. A prospective, open-label study included 65 patients (100 eyes) with presbyopia, who received cataract extraction with the implantation of a new IOL AcrySof PanOptix® trifocal. The average age of the patients was 60.0 ± 12.1 years. 35 patients underwent bilateral correction with multifocal IOLs, and 30 had a monolateral correction. In 21 % (n = 21) cases, femtolaser support of cataract extraction was performed. In 9 eyes (9 %) the primary posterior capsulorhexis was performed. The range of optical power of implanted IOLs was 13 to 30 D. The follow-up period was from 6 to 9 (6.8 ± 0.9) months.Results. On the 1 day after the MIOL implantation, an UCIVA increase was from 0.22 ± 0.19 to 0.76 ± 0.23 (p < 0.05), at follow-up to 6 months up to 0.85 ± 0.22. One day after surgery, the UCIVA increased from 0.23 ± 0.19 to 0.7 ± 0.25 (p < 0.05), with following raise up to 0.84 ± 0.24 in the maximum follow-up period of 6 months. UCFVA in the preoperative period was 0.27 ± 0.23, with an increase to 0.78 ± 0.23 (p < 0.05) for 1 day and 0.93 ± 0.18 at 6 months. The BCNVA increase was from 0.56 ± 0.25 before surgery to 0.8 ± 0.19 on the 1st day after cataract removal (p < 0.05) and 0.98 ± 0.16 at the 6 months follow-up period. Similar data (0.58 ± 0.29, 0.82 ± 0.21, and 0.95 ± 0.14) was noted for BCIVA. An BCFVA increase was from 0.71 ± 0.28 in the preoperative period to 1.0 ± 0.04 (p < 0.05) after 6 months. The primary endpoint of the study (BCFVA = 1.0) in the group was achieved in 83 % of cases (n = 83). The effect of glare was noted in 17 patients (26.1 %), halo in 9 (13.8 %), driving difficulties in 6 (9.2 %). The overwhelming majority of patients (96.9 %) rated the result of the operation as “excellent” (n = 51, 78.5 %) and “good” (n = 14, 21.5 %).Conclusion. Implantation of the examined IOL is associated with a high efficiency for near, intermediate distance and far vision correction. A new trifocal IOL may be recommended for use in clinical practice. Further comparative studies including other multifocal IOLs are needed to determine the indications and contraindications for its implantation.
New Possibilities of Antibiotic Therapy in Pediatric and Adult Ophthalmology
Authors: Brzheskiy V. V. , Prozornaya L. P. , Efimova E. L. , Brzheskaya I. V.
Published: March 2019

The problems of resistance to modern antibiotics and fluoroquinolones naturally stimulate interest in the development of eye dosage forms based on antiseptics. Today, their list has successfully supplemented the domestic drug Okomistin eye, ear, nasal drops (0.01 % — benzyldimethyl-myristoylamino-propylammonium), the manufacturer of Infamed-K. Numerous clinical studies performed, however, on adult patients, indicate a high therapeutic efficacy of the drug Okomistin®. However, with respect to children, the efficacy of Okomistin® remains unclear, although the drug has been approved for use by children from birth today.Objective. To evaluate the effectiveness of the Okomistin® in the treatment of children with bilateral bacterial conjunctivitis.Patients and Methods. Material research consisted of 30 children aged 3–16 years with bilateral acute bacterial conjunctivitis. 15 of them (26 eyes) received six-time instillations of the Okomistin® and 15 (24) — 0.05 % — Рicloxidin. All were subjected to traditional clinical examination and examination of the microflora of the conjunctival cavity with the determination of its sensitivity to antibiotics using the disk method.Results. In the spectrum of microflora found in the examined children, Staphylococcus Аureus dominated (14 eyes (53.8 %) — in the group of patients receiving Okomistin® and 13 (54.2 %) — Picloxidin), and Еpidermal Staphylococcus — 12 (46, 2 %) and 12 (50.0 %), respectively. Against the background of six-fold instillations of the compared drugs, a pronounced positive dynamics was established in relation to the relief of objective and subjective clinical symptoms of bacterial conjunctivitis already in the first week of treatment. At the same time, on the 7th day of therapy, in both groups of children, a significant decrease in the frequency of detection of microflora in the conjunctival cavity was noted, and on the 10th day, all the examined people underwent the contents of the conjunctival cavity to be sterile.Conclusion. The clinical efficacy of the Okomistin®, in combination with the absence of side effects of the drug and the affordable cost, allows recommending it for widespread practical use in pediatric and adult ophthalmology in the treatment of eye diseases of a bacterial nature. It seems promising to study the effectiveness of the drug in order to reorganize the conjunctival cavity in infants with dacryocystitis.
Intraocular Risk Factors in the Primary Formation of Diabetic Macular Edema in Patients with Diabetes Mellitus Type II
Authors: Pshenichnov M. V. , Kolenko O. V. , Sorokin E. L. , Pashentcev Yu. E.
Published: March 2019

Purpose. Revealing of the intraocular risk factors in the diabetic macular edema (ME) formatis in diabetes mellitus type II (DM2). Patients and methods. A 3.5-year research of 80 patients (160 eyes) with DM2 without signs of ME at the beginning of the research was performed. The main group consisted of 46 patients with ME symptoms on one or both eyes during the research period, the comparison group included 34 patients without ME symptoms to the end of the research. The initial ocular characteristics were retrospectively compared in groups.Results. The mean value of the axial lengths (AL) in the eyes of the main group was 23.12 ± 0.75 mm compared to 23.82 ± 0.62 mm in the comparison group (significant difference, p < 0.01). AL was less than 23.5 mm in 66 % eyes in the main group and only in 22 % of the eyes in the comparison group (p < 0.01). The mean value of the initial macular retina volume in the main group was significantly higher than in the comparison group — 7.51 ± 0.22 mm3 and 7.21 ± 0.12 mm3, respectively (p < 0.01). Initial background diabetic retinopathy (DR) was noted in 73 % eyes in the main group, which significantly differed from the comparison group, where this index was noted only in 13 % of the eyes (p < 0.01).Conclusion. Significant ocular risk factors for the formation of ME in patients with DM2 are: the initial macular retina volume more than 7.3 mm3, the value of the AL less than 23.5 mm; the initial background DR. The use of the detected morphometric parameters of eye and retina in combination with an adequate assessment of the risk factors in human organism makes it possible to assume a high risk of the primary formation of diabetic ME in patients with DM2 with high degree of probability.
The Role of Steroids in the Management of Macular Edema from Retinal Vein Occlusion
Authors: Budzinskaya M. V. , Shelankova A. V. , Plukhova A. A. , Nuriyeva N. M. , Sorokin A. S.
Published: March 2019

Aim: To analyze the effectiveness of intravitreal injection of an anti-VEGF agent (ranibizumab) and an dexametazon implant for the intravitreal injection, in real clinical life.Patients and Methods. 137 patients with MO due to retinal venous occlusion were included in the study. Patients were retrospectively divided into groups: patients who received monotherapy with ranibizumab 94 people; and monotherapy with dexamethasone implant — 15 patients; patients who initially were injected with a dexamethasone implant, but due the study transferred to ranibizumab 15 patients; patients who initially received ranibizumab, but then transferred to the dexamethasone implant -13. For the treatment of macular edema were used an anti-VEGF agent — ranibizumab (Lucentis) 0.05 ml (0.5 mg) manufactured by Novartis (Switzerland) or glucocorticosteroid — dexamethasone implant for intravitreal injection of 0.7 mg (Ozurdex) manufactured by Allergan Pharmaceutical Ireland (Ireland). The injections were administered on a pro re nata basis (the presence of macular edema). Standard ophthalmological examination and fluorescent angiography (PAG), optical coherent tomography (OCT), optical coherence tomography angiography (OCT-A) were used. Visual acuity changes (BCVA), central retinal thickness (CRT) and intraocular pressure (IOP) were analyzed depending on the study group (group 1–4), the duration of treatment and the number of injections. Results: In group 1, from 1 to 8 IVVs were performed in 24 months, an average of 3.77. In group 2, from 1 to 4 intravitreal injections were performed in 24 months, an average of 1.37. In group 3, from 1 to 2 of intravitreal injections Ozurdex and from 1 to 4 intravitreal injections of ranibizumab for 24 months. In group 4, from 1 to 4 intravitreal injections of anti-VEGF drug and from 1 to 4 intravitreal dexamethasone implant were performed in 24 months of follow-up. Monotherapy with the Ozurdex drug (12 months) had the most stable effect, with a relapse of the process, repeated injections were required, conducted only in 3 out of 15 patients. Conclusion: In real clinical practice, the dexamethasone implant showed a good safety profile and high efficacy in the resorption of macular edema in patients with retinal vein occlusion, which corresponds to the clinical trials that was made earlier.
Hubungan antara intensitas kebisingan dan tekanan darah pada PT. X
Authors: Yandoyo Christopher Adhisasmita , Merijanti Lie Tanu
Published: March 2019

LATAR BELAKANGTekanan darah tinggi atau hipertensi merupakan suatu kondisi yang mungkin tidak disadari oleh banyak orang namun menjadi faktor resiko independen untuk penyakit jantung, ginjal, pembuluh darah, mata, otak dan lain-lain. Akibat dari tekanan darah tinggi, aliran darah menjadi abnormal sehingga dapat merusak struktur organ-organ tersebut. Berbagai penelitian telah menunjukkan bahwa tekanan darah dapat dipengaruhi oleh pajanan dari perubahan fisika dan kimia lingkungan hidup. Salah satu pajanan pada lingkungan hidup yang dapat mempengaruhi tekanan darah adalah kebisingan. Untuk lebih memahami apakah terdapat pengaruh perubahan fisika dan kimia terhadap tekanan darah, maka perlu dilakukan penelitian tentang intensitas kebisingan sebagai parameter perubahan fisika tersebut pada pajanan bising kronis konstan di sebuah perusahaan.

METODEPenelitian menggunakan studi observasional dengan desain potong lintang yang mengikutsertakan 62 tenaga kerja bagian produksi PT. X. Data dikumpulkan dengan menggunakan kuesioner yang meliputi usia, jenis kelamin, lama bekerja, Body Mass Index (BMI)Asia Pasifik, konsumsi rokok, konsumsi kafein, riwayat hipertensi keluarga, riwayat hipertensi diri, riwayat pengobatan hipertensi. Pengukuran intensitas bising menggunakan noise level meter dan pengukuran tekanan darah menggunakan sphygmomanometer air raksa. Analisis data menggunakan uji Fisher Exact dengan tingkat kemaknaan (p) 0.05.

HASILAnalisis hubungan antar variabel menunjukkan adanya hubungan antara intensitas kebisingan dengan tekanan darah (p=0.002).

KESIMPULANPenelitian menunjukkan adanya hubungan antara intensitas kebisingan dengan peningkatan tekanan darah.
Fractal and Computational Geometry for Generalizing Cartographic Objects
Authors: Musin O. R. , Ukhalov A. U. , Edelsbrunner H. , Yakimova O. P.
Published: March 2019

We present an algorithm for simplifying linear cartographic objects and results obtained with a computer program implementing this algorithm.
On the Root-Class Residuallity of Generalized Free Products
Authors: Tumanova E. A.
Published: March 2019

Let K be a root class of groups. It is proved that a free product of any family of residually K groups with one amalgamated subgroup, which is a retract in all free factors, is residually K. The sufficient condition for a generalized free product of two groups to be residually K is also obtained, provided that the amalgamated subgroup is normal in one of the free factors and is a retract in another.
The Support Splitting Algorithm for Induced Codes
Authors: Kosolapov Yury V. , Shigaev Aleksey N.
Published: March 2019

In the paper, the analysis of the stability of the McEliece-type cryptosystem on induced codes for key attacks is examined. In particular, a model is considered when the automorphism group is trivial for the base code C, on the basis of which the induced code Flq⊗ C is constructed. In this case, as shown by N. Sendrier in 2000, there exists such a mapping, called a complete discriminant, by means of which a secret permutation that is part of the secret key of a McEliece-type cryptosystem can be effectively found. The automorphism group of the code Flq⊗ C is nontrivial, therefore there is no complete discriminant for this code. This suggests a potentially high resistance of the McEliece-type cryptosystem on the code Flq⊗ C. The algorithm for splitting the support for the code Flq⊗ C is constructed and the efficiency of this algorithm is compared with the existing attack on the key of the McElice type cryptosystem based on the code Flq⊗ C.
On the Hodge, Tate and Mumford-Tate Conjectures for Fibre Products of Families of Regular Surfaces with Geometric Genus 1
Authors: Oreshkina (Nikol’skaya) Olga V.
Published: March 2019

The Hodge, Tate and Mumford-Tate conjectures are proved for the fibre product of two non-isotrivial 1-parameter families of regular surfaces with geometric genus 1 under some conditions on degenerated fibres, the ranks of the N\'eron - Severi groups of generic geometric fibres and representations of Hodge groups in transcendental parts of rational cohomology.Let \(\pi_i:X_i\to C\quad (i = 1, 2)\) be a projective non-isotrivial family (possibly with degeneracies) over a smooth projective curve \(C\). Assume that the discriminant loci \(\Delta_i=\{\delta\in C\,\,\vert\,\, Sing(X_{i\delta})\neq\varnothing\} \quad (i = 1, 2)\) are disjoint, \(h^{2,0}(X_{ks})=1,\quad h^{1,0}(X_{ks}) = 0\) for any smooth fibre \(X_{ks}\), and the following conditions hold:\((i)\) for any point \(\delta \in \Delta_i\) and the Picard-Lefschetz transformation \( \gamma \in GL(H^2 (X_{is}, Q)) \), associated with a smooth part \(\pi'_i: X'_i\to C\setminus\Delta_i\) of the morphism \(\pi_i\) and with a loop around the point \(\delta \in C\), we have \((\log(\gamma))^2\neq0\);\((ii)\) the variety \(X_i \, (i = 1, 2)\), the curve \(C\) and the structure morphisms \(\pi_i:X_i\to C\) are defined over a finitely generated subfield \(k \hookrightarrow C\).If for generic geometric fibres \(X_{1s}\) \, and \, \(X_{2s}\) at least one of the following conditions holds: \((a)\) \(b_2(X_{1s})- rank NS(X_{1s})\) is an odd prime number, \(\quad\,\,\) \(b_2(X_{1s})- rank NS(X_{1s})\neq b_2(X_{2s})- rank NS(X_{2s})\); \((b)\) the ring \(End_{ Hg(X_{1s})} NS_ Q(X_{1s})^\perp\) is an imaginary quadratic field, \(\quad\,\, b_2(X_{1s})- rank NS(X_{1s})\neq 4,\) \(\quad\,\, End_{ Hg(X_{2s})} NS_ Q(X_{2s})^\perp\) is a totally real field or \(\,\, b_2(X_{1s})- rank NS(X_{1s})\,>\, b_2(X_{2s})- rank NS(X_{2s})\) ; \((c)\) \([b_2(X_{1s})- rank NS(X_{1s})\neq 4, \, End_{ Hg(X_{1s})} NS_ Q(X_{1s})^\perp= Q\); \(\quad\,\,\) \(b_2(X_{1s})- rank NS(X_{1s})\neq b_2(X_{2s})- rank NS(X_{2s})\),then for the fibre product \(X_1 \times_C X_2\) the Hodge conjecture is true, for any smooth projective \(k\)-variety \(X_0\) with the condition \(X_1 \times_C X_2\) \(\widetilde{\rightarrow}\) \(X_0 \otimes_k C\) the Tate conjecture on algebraic cycles and the Mumford-Tate conjecture for cohomology of even degree are true.
The Occurence of Anxiety on Heart Failure Patients in Pekanbaru
Authors: Malfasari E
Published: March 2019

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The Relationship Between Functional Class of Heart Failure and Anxiety Level in Patient with Heart Failure
Authors: Febtrina R
Published: March 2019

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The Effect of Endorphin Message Technique Towards the Decrease of Pain at the First Childbirth in BPM and Society Health Center Palembang
Authors: Azelea A , Vasra E , Kadir A
Published: March 2019

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The Effectiveness of Smoking Corner in RT 001 RW 004 Tirta Siak Pekanbaru
Authors: Aryantiningsih D S , Syafitri Y
Published: March 2019

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The Correlation Between Environment Sanitation and the Infancy Diarrhea in the Working Area of Rejosari Central Health
Authors: Pramulia Fitri S R
Published: March 2019

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Situation and Development of Ferroalloy Metallurgy in Russia
Authors: Ivanovich Zhuchkov V , Igorevich Leontiev L , Yakovlevich Dashevsky V
Published: March 2019

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Promising Directions of the Application for Poor Raw Materials of the Ferroalloy Production
Authors: Vadimovich Zayakin O , Ivanovich Zhuchkov V
Published: March 2019

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Structure and Phase Composition of V-Al-N-C Master Alloy
Authors: D V Taranov , A V Larionov , V M Chumarev , L A Smirnov , M V Trubachev , S A Vohmentsev
Published: March 2019

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Dephosphorization of Manganese Ore Raw Materials
Authors: Ya Dashevskii V , Petelin A L , Aleksandrov A A , Polulyakh L A , Makeev D B
Published: March 2019

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Production of Ferroalloys and Recycling in the Continuous Oxygen Reactor
Authors: But E A , Mustafin R M , Pavlov A V
Published: March 2019

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Research on the Process of Al–Mo–Ti Master Alloy Dissolution in Titanium
Authors: A V Larionov , I A Beltyukov , V M Chumarev , A N Vatolin
Published: March 2019

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Density of Chrome–Nickel Ferroalloys
Authors: Vadimovich Zayakin O , Sergeevich Renev D
Published: March 2019

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Tax Aggressiveness and Politically Connected Company
Authors: . Zaitul , Ilona D
Published: March 2019

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The Economic Potential of Tourist Destinations of Pangandaran Beach, West Java Indonesia
Authors: Hasibuan B , Gusdini N , Ratnasari L , Titi Widaningsih T
Published: March 2019

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State of Annual Paid Leave–Doctors’ Working Conditions
Authors: Igusa G O , Mizuno K , Takeda E , Yasuda S , Ichikawa M
Published: March 2019

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The Relationship Threshold Inflation with Fisher Effects in Indonesia: An Investigation Using Bounds Test
Authors: . Antoni
Published: March 2019

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Religiosity Perspective in Tax Avoidance; Case Study in Indonesia
Authors: Tanno A , Putri A
Published: March 2019

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The Extension of TAM Model in the Use of Point of Sale (Pos) in Minimarkets in Padang, Indonesia
Authors: . Yuhelmi , Trianita M , Dharma S
Published: March 2019

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Optimization of Legal Protection for Consumers in the On Line Sale and Purchase Agreement
Authors: Triasih D , Rini Heryanti B , Pujiastuti E
Published: March 2019

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Corruption and Abuse of Power: A Reflection of Social Issues in Short Stories
Authors: Ahadiat E
Published: March 2019

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The Review on Insolvency of Sharia Insurance Company from the Perspective of Islamic Economic Law in Indonesia (Case Study on Bankruptcy Decision of Asuransi Syariah Mubarakahco. Ltd Number 1016 K/Pdt.Sus-Bankrupt/2016)
Authors: Dewi G
Published: March 2019

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Behaviour Intention Among Property Developer Employees to Adopt Technology Application at Workplace
Authors: Binti Mohd Said H , Feruz bin Izharuddin A , Binti Idris I , Binti Othman H
Published: March 2019

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Design and Development Stage of Interactive CD-Based Audio Visual Media Development for Improving the Listening Skill on Listening Subject in STKIP PGRI West Sumatera
Authors: Asty H , Kemal E , . Siska , . Afdaleni
Published: March 2019

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CO2 Economic Cost Analysis in the Process of Economic Development in Indonesia
Authors: Karimi K , Susanti Tasri E , Sepriana R
Published: March 2019

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The Influence of Culture on General Elections in Indonesia
Authors: Anwar Tanjung M , Tyesta ALW L
Published: March 2019

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Effective Communication As a Tool for Achieving Organizational Goals
Authors: Idham Hj. Md Razak M , Azfarozza Wan Athmar W , Durani N , Johar Salleh A , Ilyana Binti Hamdan N
Published: March 2019

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Effect of Diversification of Business and Economic Value on Poverty in Batubara Regency
Authors: Toyib Daulay M , . Elfindri , . Sjafrizal , . Sofyardi
Published: March 2019

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The Changing Status and Role of Penghulu in the System of Nagari Governance
Authors: Hariri Gani M , Harmadi Algamar A
Published: March 2019

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Application of Balsa Composite in Curved Structures and Its Business Establishment: A Feasibility Study
Authors: Aina Q , Rahmah N , Herliana S
Published: March 2019

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Evaluation of BIM Education for Quantity Surveying: A Review of Teaching Approaches
Authors: S K Suhaida , Aini Osman N , Abdul Razak N , Shazwan M A
Published: March 2019

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The Study of Locality Development in West Sumatera
Authors: Roza W , Morelent Y , Tawakal M
Published: March 2019

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Relations EQ (Emotional Quotient) with Learning Result Bung Hatta University Biology Education Student
Authors: Hendri W , Permatasari D
Published: March 2019

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Pedagogical Practices of Code-Switching in EFL Classrooms in Padang, Indonesia
Authors: Zainil Y
Published: March 2019

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Law Enforcement on Illegal Fishing of Illegal Foreign Vessels Within EEZ of Indonesia
Authors: Gunawan Y , Nur Afifah Yogar H
Published: March 2019

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Work Skills Factor for Mechanical Engineering Students of Vocational High School
Authors: Hartanto S , Langgeng Ratnasari S , Arifin Z
Published: March 2019

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Indigenous Character Found on European Languages in Foreign Language Course
Authors: Hartiningsih S
Published: March 2019

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Basic Skill of Counseling Modules to Increase Competence in Professional School Counsellor
Authors: . Marzuki , Pranoto H , Wibowo A , Anjar T
Published: March 2019

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Design of Digital Engineering Practicum Simulator for Vocational High School
Authors: Yusti I , . Ganefri , . Ridwan , . Nofriadiman , . Yahfizham
Published: March 2019

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The Development of Learning Materials Based on Guided Discovery to Improve the Student’s Ability in Mathematical Problem Solving on Second Semester at Grade VIII of Junior High School
Authors: Sari N , Fauan A , Syarifuddin H
Published: March 2019

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Applying the Concept of Islam Rahmatan Lil’alamin Through Arabic Learning to Student in STIT Syekh Burhanuddin Pariaman Sumatera Barat
Authors: Annova F , Fitriani S
Published: March 2019

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Narrative Writing in Novel Towards EFL Learning
Authors: Rofi’i A , . Emzir , Rafli Z
Published: March 2019

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Developing New Generation of Learning Material for Inorganic Chemistry Course
Authors: . Afnidar , Pribadi B
Published: March 2019

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Environmental Literacy Mapping Based on Adiwiyata and Non Adiwiyata at Junior High School in Ponorogo
Authors: Nurwaqidah S , . Suciati , Ramli M
Published: March 2019

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Mathematical Word Problem Solving in Students Elementary School: Is Schema-Based Instruction (SBI) or Cognitive Strategy Instruction (CSI) Used?
Authors: Restati Siregar N , Wimbarti S , . Kadir
Published: March 2019

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Randomized Group Vs Heterogeneous Group in Developing EFL Argumentative Essay
Authors: Alfino J , Adnan Latief M , Widiati U , Saukah A
Published: March 2019

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Local Wisdom of Minangkabau in Marriage System in Novel Mengurai Rindu By Nang Syamsuddin
Authors: Isnanda R , . Syofiani
Published: March 2019

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Positive effects of renal denervation on left ventricular hypertrophy and subendocardial damage
Authors: Sitkova E. S. , Mordovin V. F. , Ripp T. M. , Pekarskii S. E. , Ryabova T. R. , Lichikaki V. A. , Falkovskaya A. Yu. , Mochula O. V. , Usov V. Yu. , Baev A. E.
Published: March 2019

Background. The high prevalence of cardiac damage in resistant hypertensive patients signifcantly increases the risk of cardiovascular complications. Despite the antihypertensive effcacy of renal denervation (RDN), the cardioprotective effect has not been suffciently studied.

Objective. To study the changes in left ventricular mass (LVM) and volume of myocardial damage after the RDN and to detect a possible connection of the studied parameters with blood pressure (BP) reduction after RDN.

Design and methods. RDN was applied to 84 patients with resistant hypertension. Initially, at 6 and 12 months after treatment, patients underwent the measurements of the “offce” BP, 24-h BP, echocardiography and cardiac contrast-enhanced magnet-resistance tomography.

Results. At baseline, “offce” BP averaged 175,3 ± 22,1 / 100,4 ± 16,1 mmHg and the prevalence of left ventricular hypertrophy (LVH) was 84,5 %. “Offce” BP reduced signifcantly at 6 month by –27,5 (–74,0; 12,0) / –14,2 (–39,4; 10,3) mmHg (p < 0,001), at 12 month by –31,6 (–78,7; 8,3) / –15,5 (–43,3; 10,2) mmHg (p < 0,001). 24-h BP reduced signifcantly at 6 month by –13,0 (–45,2; 17,6) / –6 (–27,8; 8,9) mmHg (p < 0,001), at 12 month by –14,3 (–52; 25) / –7,3 (–26; 15,0) mmHg (p < 0,001). At 12 month after RDN LVM decreased by 6,9% (p = 0,015), LV mass index by 5,5 % (p = 0,020). According to MR study, subendocardial damage was detected in 100% of patients in the absence of coronary atherosclerosis. A volume of subendocardial damage signifcantly reduced by 29 % at 6 month (p = 0,031) and by 41,4% at 12 months after RDN (p = 0.008). LVM reduced signifcantly by 18,3 % (р = 0,008). LVM also reduced signifcantly in non-responder’s group at 6 month after RDN (р = 0,046). The regression of subendocardial damage correlated with the change in systolic BP at 12 months after RDN (р = 0,034). There was no signifcant correlation between LVH regression and baseline BP and its change after RDN.

Conclusions. One year after RDN, LVH decreased independently from the BP change. Subendocardial damage was detected in 100% patients, regressed at 6 months after RDN and correlated with the regression of systolic BP at 12 month after the RDN.
Increasing the diagnostic signifcance of the laser Doppler ﬂowmetry in assessing skin microcirculation in hypertension
Authors: Glazkova P. A. , Terpigorev S. A. , Kulikov D. A. , Ivanova N. A. , Glazkov A. A.
Published: March 2019

Background.Hypertension (HTN) is associated with impaired skin microcirculation. Laser Doppler ﬂowmetry is an objective, quantitative, instrumental method that allows evaluating skin microcirculation. However, the method was not widely used clinically due to high variability of perfusion and small difference between healthy people and HTN patients and, as a consequence, low diagnostic signifcance.

Objective.To provide the grounds for the approaches increasing the informative value of skin microcirculation measurement by laser Doppler ﬂowmetry in HTN patients.

Design and methods.The study involved HTN patients (n = 13, the median age was 60 (49; 63) years) and young otherwise healthy volunteers without HTN (n = 12, the median age 26 (25; 27) years). Microcirculation measurement was performed by laser Doppler ﬂowmetry using LAKK-02 device. Registration of microcirculation on the forearm skin was carried out during the occlusionheating test. The Mann-Whitney test was used to compare the parameters in two groups. The diagnostic accuracy of the method for the inverse classifcation of the subjects was evaluated using ROC analysis.

Results.In HTN patients, the median baseline perfusion was 3,1 (1,84; 4,31) perfusion units (PU), in healthy volunteers — 4,29 (3,66; 8,14) PU (p = 0,04). The median area under the microcirculation curve for the frst 2 minutes of heating in HTN patients was 1206,7 (813; 1449) PU × s, in healthy volunteers — 1552,3 (1310; 1624) PU × s (p = 0,035). In healthy volunteers, the heating increased the perfusion by 596 % (386%; 878%), and in HTN patients perfusion increased only by 265% (180 %; 318%) (p = 0,01). The relative increase in perfusion during postocclusion hyperemia with continued heating compared with the baseline in healthy volunteers was 651% (493 %; 999%), and in HTN patients — 302 % (182 %; 436%) (p = 0,005). Thus, when comparing the average parameters for each period in the occlusion-heating test, only basic perfusion showed signifcant differences. However, when changed from absolute to relative parameters (the increase in microcirculation in relation to the vasodilating effects), the difference was signifcant. Moreover, sensitivity achieved was 75 % and specifcity — 84,6% (the inverse classifcation of groups).

Conclusions.The physiological (the local heating of the forearm skin at a rate of 2 degrees Celsius per second, a combination of vasodilating effects) and mathematical (the transition from absolute to relative values) approaches provided an increase of the informative value of the laser Doppler ﬂowmetry, as well as its sensitivity and specifcity.
THE ORGANIZATION OF OPTICAL KERATOPLASTY IN THE REHABILITATION OF PATIENTS WITH ANOMALIES AND CORNEAL OPACITIES
Authors: Egorov V. V , Diachenko U. N , Egorova A. V , Vasilyev A. V , Kolenko O. V , Sorokin E. L
Published: March 2019

The article analyzes the organization and clinical efficacy of keratoplasty for visual purpose, conducted in the Khabarovsk branch of the FSAI NMRC ISTC «Eye Microsurgery named after academician S.N. Fedorov» of the Russian Federation. 111 patients (111 eyes) were operated on for: bullosa keratopathy 3-4 degrees - 55 eyes; stage 4 keratoconus - 37 eyes; posttraumatic cornea belmas of 3-4 categories - 14 eyes; hereditary corneal degeneration - 5 eyes. In 88 eyes, the technique of penetrating keratoplasty was applied, in 19 eyes - anterior deep layered keratoplasty, in 4 eyes - descemet membrane transplantation.
INNOVATIVE CAPABILITIES OF NON-INVASIVE VITAL ASSESSMENT OF VASCULAR STATUS OF MICROCIRCULATORY BED IN DIABETIC RETINOPATHY
Authors: Fabrikantov O. L , Pronichkina M. M , Yablokova N. V , Ovsyannikova N. V
Published: March 2019

The examination included 102 patients, divided into 2 main groups. Control group comprised 48 patients. We analyzed the results and made conclusions about reducing the relative density of microcirculation in the vascular plexus of the central retinal zone according to OCT-angiography data. By capillaroscopy we revealed the pathological alterations of nail bed capillaries. The correlation relationships between alterations of nailfold microcirculation and those of the relative density of microcirculation in the vascular plexus of macular zone were defined.
ANÁLISE DOS EFEITOS DA COMPOSIÇÃO QUIMICA, POROSIDADE E TRATAMENTOS TÉRMICOS NA DUREZA EM LIGAS DE AL-SI-MG FUNDIDAS
Authors: Guterres Albino Moura , Santos Carlos Alexandre
Published: March 2019

O objetivo do presente trabalho foi analisar o efeito da composição química, porosidade e tratamentos térmicos na propriedade mecânica de dureza em ligas de Al-Si-Mg fundidas. Duas ligas Al-3,8%Si-0,25%Mg (Liga I) e Al-6,5%Si-0,6%Mg (Liga II) foram preparadas, fundidas e solidificadas em molde metálico, com e sem processo desgaseificação. Amostras transversais foram extraídas ao longo do comprimento dos lingotes para análises do percentual de porosidade e determinação da dureza. Parte das amostras foram submetidas a tratamentos térmicos de endurecimento por precipitação. Em relação à porosidade, observou-se que a Liga II apresentou maior percentual de porosidade por ter mais Fe na sua composição, já que, esse elemento contribui para a maior formação de intermetálicos de ferro Al5FeSi (forma de agulhas), durante a solidificação, que impedem que o metal líquido possa preencher os espaços entre as agulhas ramificadas, gerando a nucleação de poros. Durante a análise das propriedades mecânicas, observou-se que, com a aplicação do tratamento térmico, a Liga II apresentou os melhores resultados, gerando aumento de 23% na dureza. Dessa forma, a Liga II por apresentar maior percentual de Mg respondeu melhor ao tratamento térmico, visto que, o Mg é o elemento necessário para precipitação da fase Mg2Si, base do endurecimento por precipitação e responsável pelo acréscimo na dureza.