bluuebunny/crossref_metadata_2025 huggingface dataset:
Improvement Of Power Quality In Wind Energy Applications Using A Dstatcom Coupled With A Flywheel Energy Storage System
Authors: Orlando Suvire Gastón , Enrique Mercado Pedro
Published: October 2018

The inclusion of wind power in power systems is steadily increasing around the world. This incorporation can generate a number of problems on the dynamics of power systems. In addition, over the last few years, new power electronic devices coupled with energy storage have emerged. These new devices allow the operation of electric systems to be controlled. In this work, the use of a Distribution Static Synchronous Compensator (DSTATCOM) coupled with a Flywheel Energy Storage System (FESS) is proposed to mitigate problems, mainly in power quality, introduced by wind generation in the electric system. A dynamic model of the DSTATCOM/FESS device is presented and a multi-level control technique is proposed. The control technique has one control mode for active power and two control modes for reactive power, power factor correction, and voltage control. Tests of the behaviour of the device are analyzed when it is combined with wind generation in the electric system. The results demonstrate a satisfactory performance of the control technique proposed as well as a high effectiveness of the device, to mitigate problems introduced by wind generation.
Retificador Boost Baseado Na Célula De Comutação De Três Estados Para Aplicações Em Nobreaks
Authors: Amaral da Câmara Raphael , Marcos Tavares Cruz Cícero , Pastor Torrico Bascopé René
Published: October 2018

Este artigo apresenta uma nova topologia de conversor boost baseado na célula de comutação de três estados para aplicações em nobreaks. As principais características deste conversor são: reduzidas perdas de condução nos interruptores controlados, elementos magnéticos com volume e peso reduzidos, reduzida ondulação da corrente de alta freqüência, estratégia de controle simplificada, conexão entre a fonte de alimentação e a saída do conversor possibilitando o uso do bypass, e duas opções de tensão de entrada. São apresentadas a análise teórica e os resultados experimentais de um protótipo de 3kW.
Microbial colonization and antimicrobial susceptibility of the nose and external ear canal in hemodialysis patients
Authors: KILIÇ Korhan , DERMAN Eylül , SAKAT Muhammed Sedat , GÖZELER Mustafa Sıtkı , USLU Hakan , ŞENGÖZ Furkan
Published: October 2018

Aim:
The effect of normal
bacterial flora on the immune system is to make it more effective against
harmful micro-organisms and to maintain it in readiness for a more rapid
response. The purpose of this study was to
determine the bacterial flora in the external ear canal and nasal cavities in
hemodialysis patients, to compare this with the normal population and to show
the microorganisms’ antibiotic susceptibilities. Materials
and Methods: Patients receiving hemodialysis
therapy for at least 3 years were included in the study. A control group (n=62)
was established consisting of patients with no immune-suppressive condition and
presenting to hospital with non-ear symptoms. Swab specimens were taken from
all subjects’ external ear canals and nasal cavities. Results of the cultures
were recorded and antimicrobial susceptibility test was performed.Results: The most commonly isolated micro-organisms in the study group were
MRCoNS (41%), followed by MSCoNS (15.5%) and diphtheroids (9.8%). The
micro-organism most commonly isolated from the nasal cavity in the study group
was CoNS (52.7%), of which MRCoNS constituted 69.2%.

Conclusion:
We think that infections that play a major role in
mortality and morbidity in hemodialysis patients may originate from the
external ear canal as much as the nasal cavity, for this reason it is important
for micro-organisms colonizing these regions to be eliminated with appropriate
treatment on the basis of antibiotic susceptibility tests.
Kemik-patellar tendon-kemik otogrefti veya dörtlü semitendinöz otogreft kullanılarak artroskopik ön çapraz bağ rekonstrüksiyonu uygulanan olguların uzun dönem klinik ve radyolojik sonuçları ile donör saha morbiditilerinin karşılaştırılması
Authors: ÖZTÜRK Anıl Murat , TAŞKIRAN Emin
Published: October 2018

Amaç: Çok sayıda değişkenin arasından ön çapraz bağ kopuğu sonrası
kemik-patellar tendon-kemik otogrefti veya dörtlü semitendinöz otogreft
kullanılarak artroskopik ön çapraz bağ rekonstrüksiyonu uygulanan iki hasta
grubu ile, hastaların uzun dönem takibinde radyolojik, klinik sonuçlarını,
donör saha morbiditelerini değerlendirmek ve karşılaştırmak amaçlanmıştır.

Gereç ve
Yöntem: Bu çalışmada, Ege Üniversitesi Tıp Fakültesi
Ortopedi ve Travmatoloji polikliniğine Ocak 1994 ve Aralık 2002 tarikleri
arasında artroskopik ön çapraz bağ rekonstrüksiyonu ameliyatı olan 81 hasta
retrospektif olarak değerlendirildi. Hastalar kemik-patellar tendon-kemik (PT)
otogrefti veya dörtlü semitendinöz (ST) otogrefti kullanılanlar olarak iki
gruba ayrıldı. Ameliyat öncesi verilere hastane kayıtlarından ulaşıldı. Son
kontrolde klinik muayeneleri ile Cybex
ve KT-1000 ölçümleri yapıldı. Radyolojik inceleme ile tibial ve femoral tünel
yerleri, patellanın yüksekliği ve osteoartrit durumu değerlendirildi.

Bulgular: Post operatif diz önü ağrısı, patella baja, çıplak diz ve sert zeminde
yürümede ağrı, PT grubunda ST grubuna oranla yüksek bulundu. Diz önünde duyu
kusuru, PT grubunda yüksek bulundu. Radyolojik evre 2, kronik dönemde opere dilenlerde
subakut dönemde opere edilenlere göre ve menüsküs dikişi uygulananlarda eksize
edilenlere göre daha yüksek bulundu.

Sonuç: ST veya PT otogreftleri kullanılarak yapılan artroskopik
rekonstrüksiyonun klinik ve fonksiyonel açıdan karşılaştırılması sonucunda her
iki otogreft materyali ile yeterli fonksiyonel stabilite sağlamaktadır. Donor
saha morbiditesi ile uyumlu olarak diz önü sorunları PT grubunda daha fazla
olmaktadır.
Koroner arter kalsiyum skoru kırmızı kan hücresi dağılım genişliği ve ortalama trombosit hacmi ile ilişkilidir
Authors: ALTIN Cihan , YILMAZ Mustafa , GEZMİŞ Esin , MÜDERRİSOĞLU Haldun
Published: October 2018

Amaç: Bu çalışmada, koroner bilgisayarlı tomografik anjiyografi (KBTA) ile saptanan koroner arter hastalığı (KAH) ve koroner arter kalsiyum skorunun (KAKS) kırmızı kan hücresi dağılım genişliği (RDW) ve ortalama trombosit hacmi (MPV) arasındaki ilişkinin değerlendirilmesi amaçlandı.Gereç ve Yöntem: Anjina veya benzeri semptomlar nedeniyle 64 kesitli KBTA uygulanan 172 hastanın tıbbi kayıtları geriye dönük olarak incelendi. Hastaların klinik özellikleri, risk faktörleri, KAKS’ı da içeren KBTA sonuçları, RDW, MPV değerlerini de içeren biyokimyasal ve hematolojik parametreleri kaydedildi.Bulgular: Çalışma popülasyonu KBTA sonuçlarına göre KAH (n=85) ve normal koroner arter (NKA) (n=87) olmak üzere iki gruba ayrıldı. Ortalama RDW (%15,36±1,15’e karşı %14,37±2,01; p<0,001) ve MPV (7,95 ± 1,57 fL’e karşı 7,12±1,26 fL, p<0,001) seviyeleri KAH grubunda NKA grubuna göre anlamlı olarak yüksek saptandı. KAKS ile yaş (r=0,339, p<0,001), açlık kan şekeri (r=0,223, p=0,003), C-reaktif protein (r=0,294, p<0,001), RDW (r=0,157, p=0,04) ve MPV (r=0,221, p=0,004) arasında pozitif korelasyon saptandı. Yapılan çok değişkenli lojistik regresyon analizinde KAKS [odds oranı (OR): 1,005; %95 güven aralığı (CI): 1,002-1,008; p=0,001] ve MPV [OR: 1,410; %95 CI: 1,069-1.860; p=0.015] KBTA ile saptanan KAH’ın bağımsız risk faktörleri arasında saptandı. Sonuç: RDW ve MPV KAH grubunda anlamlı olarak daha yüksek saptanmıştır. Koroner aterosklerozun iyi bir göstergesi olan KAKS ile bu parametreler arasında pozitif bir korelasyon gösterilmiştir. MPV ve RDW düzeylerinin çok çeşitli faktörlerden etkilenebileceği de düşünülürse bu konuda geniş kapsamlı ileri prospektif çalışmalara ihtiyaç duyulmaktadır.
Características de los componentes del síndrome metabólico en pacientes con glucosa normal y disglicemia en ayunas
Authors: Gross Melo Fernando de Jesús , Huamán Saavedra Juan Jorge , Álvarez Vargas Mayita , Gonzáles Saldaña Jaime , Gutiérrez Arana Jessica , Osada Liy Jorge Enrique
Published: October 2018

Objetivos: Investigar las características de los componentes del Síndrome Metabólico (SM) entre pacientes con glucosa normal y disglicemia en ayunas en la población adulta de Trujillo. Material y métodos: Estudio de análisis secundario tipo descriptivo, comparativo, relacional. Se analizó base de datos, de un estudio previo sobre SM en adultos de 20-79 años en Trujillo entre los años 2010 al 2014, desarrollado a través de campañas médicas de despistaje de factores de riesgo cardiovascular. El grupo 1: incluyó 127 adultos con SM y glucosa normal en ayunas (NG). El grupo 2: incluyó 110 adultos con SM y disglicemia en ayunas (DG). Se usó la prueba t de Student para comparación de medias y la prueba Z para comparación de proporciones, con un nivel de significancia de 0,05 e intervalos de confianza del 95%. Resultados: Los niveles séricos de triglicéridos en ayunas (TG) fueron 219,09 ± 101,83 mg/dl en NG y 192,3 ± 103,17 mg/dl en DG (p= 0,004) y la frecuencia de hipertrigliceridemia fue 85,04% en NG y 63,64% en DG (p=0,000) y de HDL colesterol bajo 71,65% en NG y 51,81% en DG (p=0,002). Conclusiones: Existe mayor nivel sérico de TG y mayor frecuencia de hipertrigliceridemia y HDL colesterol bajo en el grupo NG.
Características de los electrolitos de pacientes adultos que acuden por emergencia médica a un hospital general de Lima, Perú
Authors: Cieza Zevallos Javier Antonio , Orihuela Jesús Christian Bryan
Published: October 2018

El número de pacientes con desnutrición que demanda servicios de emergencia en hospitales de Lima-MINSA, es considerable y podría relacionarse con alteraciones del medio interno. Tener una idea objetiva cómo esta característica puede ser relevante en esta demanda es importante. Objetivos: Estudiar la magnitud e importancia de las alteraciones electrolíticas en pacientes internados en la emergencia de un hospital nivel III (MINSA Lima-Perú). Material y métodos: Estudio trasversal descriptivo y analítico de los electrolitos en pacientes que acudieron al servicio de emergencia de adultos del Hospital Cayetano Heredia (Lima-Perú) en setiembre del 2016, seleccionado al azar y admitidos para observación mayor de 48 horas. Se consideró el nivel de albúmina sérica, la azoemia y gasometría coexistente al momento del control de los electrolitos. Resultados: La alteración electrolítica más frecuente observada en 206 pacientes fue hipocalcemia (46,7%); seguida de hiperfosfatemia (32,3%), hiponatremia (24,7%) e hipermagnesemia (18,9%). La hipoalbuminemia <3,0 g/dl estuvo presente en 50,56% y <2,6 g/dl en el 31,4% de los casos. La albuminemia solo mostró correlación significativa con la calcemia (r=0,47; p=0,002) y la natremia (r=0,233; p=0,028). La hiperfosfatemia estuvo relacionada a un modelo dependiente de la creatinina sérica, alcalosis respiratoria y cáncer. La hipomagnesemia e hipermagnesemia se relacionaron con bajos y altos valores de creatinina y urea, respectivamente. Conclusiones: La frecuencia de pacientes con hipoalbuminemia que demandaron servicios de emergencia fue notablemente alta, y su relación más relevante estuvo relacionada con disturbios de la calcemia y la natremia. Otros disturbios relevantes fueron los relativos al magnesio, situación que requiere estudio más exhaustivo.
Caso clínico 02-2018. Mujer 76 años con cefalea, dolor articular y disfagia de rápida instauración
Authors: Vásquez Kunze Sergio , Cruz-Encarnación María , Cok García Jaime , Calvo Quiroz Armando
Published: October 2018

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Hard Coating is Because of Oppositely Worked Force-Energy Behaviors of Atoms
Authors: Ali Mubarak , Hamzah Esah , Toff Mohd Radzi Mohd
Published: October 2018

Coatings of suitable materials having thickness of few atoms to several microns on the viable substrates are the basic need of society and they attend the regular attention of scientific community working in various fields of science and technology. Decorative and protective coatings, transparent and insulating coatings, coatings of medical implants and surgical instruments, coatings for drug delivery and security purposes, ultra-precision machine coatings and coatings of miscellaneous uses are in the routine demand of research and commercial objectives. Different hard coatings develop under the significant composition of differently natured atoms where their force-energy behaviors as per recovering of transition states provide the provision for electron (of outer ring) belonging to gas atom to undertake another clamp of unfilled energy knot (of outer ring) belonging to solid atom. Set process conditions switch force-energy behaviors of differently natured atoms as per at the ground surface where they nearly worked oppositely to the original state behaviors. Different natured atoms develop structure in the form of hard coating by locating the ground point between original points where gas atoms increase potential energy under the decreasing levitational force at electron levels while the solid atoms decrease potential energy under the decreasing gravitational force at electron levels. Ti-atom to Ti-atom binding is through the difference of expansion of their lattices when one atom is just landing on the appropriately already landed atom where the adhered nitrogen atoms nearly incorporated in their interstitial sites. Under suitable set parameters, different nature atoms deposit in the form of coating at substrate surface in the deposition chamber of certain energy source-based technique. In random arc-based vapor deposition system, depositing different natured atoms at substrate surface depends on the input power where involved non-conserved energies engaged the non-conservative forces to keep the structure adhered. Different properties and characteristics of hard coatings emerged as per engaged forces under the set conditions of involved energy. The present study sets new trends not only in the field of coatings but also in the diversified class of materials and their counterparts, wherever, atoms recall their roles.
The Aversive Brain System of Teleosts: Implications for Neuroscience and Biological Psychiatry
Authors: do Carmo Silva Rhayra Xavier , Lima-Maximino Monica Gomes , Maximino Caio
Published: October 2018

Defensive behavior is a function of specific survival circuits, the “aversive brain system”, that are thought to be conserved across vertebrates, and involve threat detection and the organization of defensive responses to reduce or eliminate threat. In mammals, these circuits involve amygdalar and hypothalamic subnuclei and midbrain circuits. The increased interest in teleost fishes as model organisms in neuroscience created a demand to understand which brain circuits are involved in defensive behavior. Telencephalic and habenular circuits represent a “forebrain circuit” for threat processing and organization of responses, being important to  mounting appropriate coping responses. Specific hypothalamic circuits organize neuroendocrine and neurovegetative outputs, but are the less well-studied in fish. A “midbrain circuit” is represented by projections to interneurons in the optic tectum which mediate fast escape responses via projections to the central gray and/or the brainstem escape network. Threatening stimuli (especially visual stimuli) can bypass the “high road” and directly activate this system, initiating escape responses. Increased attention to these circuits in an evolutionary framework is still needed.
What Moves the Labor Force Participation Rate?
Authors: Bernstein David H.
Published: October 2018

The seasonally adjusted civilian labor force participation rate, the sum of employed and unemployed persons as a percentage of the civilian non-institutional population, is analysed in the general to specific modelling framework with a saturating set of step indicators from January 1977 through June 2018. The results indicate that, ceteris paribus, the rise in the ratio of women to men in the labor force in addition to positive demographic movements can largely account for the rise in the labor force participation rate up to January 2000. Subsequently, the aging population helps to explain the decline. Recessions play a transitory role.
Model of Flow Resistance Coefficient for a Fragment of a Porous Material Deposit with Anisotropic Skeletal Structure
Authors: Wałowski Grzegorz
Published: October 2018

The hydrodynamic results obtained from the permeability of porous materials not only affect the assessment of the stream of the gas flow through those materials but they also refer to the loss of pressure energy in that flow. The direct measure of that loss is flow resistances.The results of experimental research upon the assessment of the flow resistances of porous materials with respect to gas flow. The research conducted applied to natural materials with an anisotropic gap-porous structure. The tests were carried out on a gas permeability measuring system, adapted to different shapes of porous material samples. The process issue of the total pressure drop on a porous deposit was considered in the Reynolds number category. The coefficient of flow resistance for anisotropic materials was defined and the value of this coefficient was compared to the gas stream and the total pressure drop on the porous bed was experimentally evaluated.
Follow the Water in Its High-Subcritical State
Authors: Bassez Marie-Paule
Published: October 2018

The expression "Follow the water" is used in order to recognize inside the universe, life as it exists on Earth. It is shown here that the expression "Follow the water in its high-subcritical state" can be used in order to recognize the components of life which form prior to the emergence of life. This specific state of water leaves signatures inside the minerals which are produced during high-subcritical water/rock interaction.
Clinical Significance of Nectin-4 Expression in Metastasis and Angiogenesis for Tumor Relapse
Authors: Sethy Chinmayee , Goutam Kunal , Nayak Deepika , Pradhan Rajalaxmi , Molla Sefinew , Chatterjee Subhajit , Rout Niranjan , Wyatt Michael , Narayan Satya , Kundu Chanakya
Published: October 2018

In the present study, we have systematically examined the clinical significance of Nectin-4 (encoded by the PVRL-4 gene), a marker for breast cancer stem cells (CSCs), in cancer metastasis and angiogenesis using a variety of human specimens, including invasive duct carcinoma (IDC) with multiple grades, several types of primary tumors to local and distant relapses, lymph node metastases and circulating tumor cells (CTCs). Nectin-4 was overexpressed in more than 92% of samples with 65.2% Nectin-4 positive cells. The level of expression was increased with increasing tumor grade (GI-III) and size (T1-4) of IDC specimens. More induction of Nectin-4 was noted in relapsed samples from a variety of tumors (colon, tongue, liver, kidney, ovary, buccal mucosa) in comparison to primary tumors, while paired adjacent normal tissues do not express any Nectin-4. A high expression of Nectin-4 along with other representative markers in CTCs and lymph node metastasis was also observed in cancer specimens. An increased level of Nectin-4 along with representative metastatic (CD-44, Sca1, ALDH1, Nanog) and angiogenic (Ang-I, Ang-II, VEGF) markers was noted in metastatic tumors (local and distant) in comparison to primary tumors that were correlated with different grades of tumor progression. In addition, greater expression of Nectin-4 was observed in secondary tumors (distant metastasis, e.g., breast to liver or stomach to gallbladder) in comparison to primary tumors. Nectin-4 was overexpressed at all stages of metastasis and angiogenesis, thus appearing to play a major role in tumor relapse through the PI3K-Akt-NFκβ pathway.
A Third Order Newton-Like Method and Its Applications
Authors: Sahu D. R. , Agarwal R. P. , Cho Y. J. , Singh V. K.
Published: October 2018

In this paper, we study the third order semilocal convergence of the Newton-like method for finding the approximate solution of nonlinear operator equations in the setting of Banach spaces. First, we discuss the convergence analysis under ω-continuity condition, which is weaker than the Lipschitz and Hölder continuity conditions. Second, we apply our approach to solve Fredholm integral equations, where the first derivative of involved operator not necessarily satisfy the Hölder and Lipschitz continuity conditions. Finally, we also prove that the R-order of the method is 2p + 1 for any p $\in$ (0,1].
Fat Mass and Obesity Associated (FTO) Gene and Hepatic Glucose and Lipid Metabolism
Authors: Mizuno Tooru M.
Published: October 2018

Common genetic variants of the fat mass and obesity associated (FTO) gene are strongly associated with obesity and type 2 diabetes. FTO is ubiquitously expressed, but appears to have tissue-specific roles. Earlier studies have focused on the role of hypothlamic FTO in the regulation of metabolism. However, it appears that FTO plays a role in the regulation of metabolism in a tissue-specific manner. Recent studies suggest that expression of hepatic FTO is regulated by metabolic signals such as nutrients and hormones and altered FTO levels in liver affects glucose and lipid metabolism. This review outlines recent findings on hepatic FTO in the regulation of metabolism, with particular focus on hepatic glucose and lipid metabolism. It is proposed that abnormal activity of hepatic signaling pathways involving FTO links metabolic impairments such as obesity, type 2 diabetes and nonalcoholic fatty liver disease (NAFLD). Therefore, a better understanding of these pathways may lead to therapeutic approaches to treat these metabolic diseases by targeting hepatic FTO. The overall goal of this review is to place FTO within the context of hepatic regulation of metabolism.
A Rare Pediatric Case of Severe Bird Fancier's Hypersensitivity Pneumonitis Presented with Viral Pneumonitis-Like Picture
Authors: Habra Basel , AbdulWahab Atqah
Published: October 2018

Bird Fancier’s Syndrome is a rare, non-atopic immunologic response to repeated or intense inhalation of avian (bird) proteins/antigens found in the feathers or droppings of many species of birds, which leads to an immune mediated inflammatory reaction in the respiratory system. Although this is the most common type of hypersensitivity pneumonitis reported in adults, it is one of the classification of a rare subtype of interstitial lung disease that occurs in the pediatric age group of which few case reports are available in the literature. The pathophysiology of hypersensitivity pneumonitis is complex; numerous organic and inorganic antigens can cause immune dysregulation, leading to an immune related antigen-antibody response (immunoglobulin G–IgG- against the offending antigen). Diagnosing Bird Fancier’s disease in the pediatric age group is challenging, history of exposure is usually missed by health care providers, symptoms and clinical findings in such cases are nonspecific and often misdiagnosed during the acute illness with other common diseases such asthma, or acute viral lower respiratory tract infection, and the lack of standardization of criteria for diagnosing such condition, or sensitive radiological or laboratory test. Treatment, on the other hand, is also controversial. Avoidance of the offending antigen could be the sole or most important part of treatment, particularly in acute mild and moderate cases. Untreated cases can result in irreversible lung fibrosis. In this case report, we highlight how children presenting with an acute viral lower respiratory tract infection can overlap with hypersensitivity pneumonitis. Early intervention with pulse steroids markedly improves the patient’s clinical course.
Role of Wetland Plants and Use of Ornamental Flowering Plants in Constructed Wetlands for Wastewater Treatment: A Review
Authors: Sandoval-Herazo Luis Carlos , Marín-Muñiz Josè Luis , Orduñas María Graciela Hernández y , Aleman-Chang Antonio Janoary
Published: October 2018

The vegetation in constructed wetlands (CWs) plays an important role in wastewater treatment. Popularly, the common emergent plants in CWs have been vegetation of natural wetlands. However, there are ornamental flowering plants that have some physiological characteristics similar to the plants of natural wetlands that can stimulate the removal of pollutants in wastewater treatments; such importance in CWs is described here. A literature survey of 87 CWs from 21 countries showed that the four most commonly used flowering ornamental vegetation genera were Canna, Iris, Heliconia and Zantedeschia. In terms of geographical location, Canna spp. is commonly found in Asia, Zantedeschia spp. is frequent in Mexico (a country in North America), Iris is most commonly used in Asia, Europe and North America, and species of the Heliconia genus are commonly used in Asia and parts of the Americas (Mexico, Central and South America). This review also compares the use of ornamental plants versus natural wetland plants and systems without plants for removing pollutants (COD, BOD, nitrogen and phosphorous compounds). The removal efficiency was similar between flowering ornamental and natural wetland plants. However, pollutant removal was better when using ornamental plants than in unplanted CWs. The use of ornamental flowering plants in CWs is an excellent option, and efforts should be made to increase the adoption of these system types and use them in domiciliary, rural and urban areas.
Analog of Hayman Conjecture for Linear Dierence Polynomials
Authors: Dhar Rajshree
Published: October 2018

We investigate the value distribution of dierence polynomials of entire and meromorphic functions, which can be viewed as the Hayman's conjecture. And we also study the uniqueness of dierence polynomials sharing a common value.
Land Consolidation Design Based on an Evaluation of Ecological Sensitivity
Authors: Qiuqin Zhang , Tianzhu Zhang
Published: October 2018

Land consolidation engineering inevitably interferes with terrestrial ecosystems, leading to natural capital loss. Therefore, conducting an ecological sensitivity evaluation of a project area before consolidation engineering is very important for reducing unnecessary human interference. Conservation of terrestrial ecosystems and the biodiversity therein to the greatest possible extent is urgently needed. This research analyzes the interference by human activities caused by land consolidation engineering in terrestrial ecosystems. GIS technology, ecological values, landscape pattern indexes, and an ecological risk evaluation were used to construct an ecological sensitivity evaluation index. The coefficient of variation method and a comprehensive sensitivity rating evaluation were used to calculate the weights and results. The project area was divided into sensitivity zones according to the results, and the results and suggestions are as follows: In the highly eco-sensitive zone, where bare rocks, gravel, and grass-covered areas compose the main landscape type, vegetation should be restored, and forests should be planted. In the medium eco-sensitivity zone, where irrigated paddy fields and arid land compose the main landscape type, land parcels should be merged, and agricultural infrastructure should be constructed or improved. In the low eco-sensitivity zone, where forests compose the main landscape type, roads should be closed, natural habitat should be restored, and buffer zones should be created. This study provides suggestions for future land management decisions.
Design, Synthesis and Photophysical Studies of Improved Xanthene Dye to Detect Acetate
Authors: Paredes Jose Manuel , Miguel Delia , Resa Sandra , Gonzalez-Garcia Maria del Carmen , Diaz-Torres Yanira , Cuerva Juan Manuel , Crovetto Luis
Published: October 2018

Development of biomarkers of analytes with interest in clinic is an important field of study. In this work, we synthesized and analyzed the new fluorescent acetate-biomarker, Iso-PG. The mechanism of detection is the acetate buffer mediated proton transfer reaction. The rate constants involved were obtained, and we measured the change in the fluorescence lifetime produced as a consequence of the presence of acetate in the medium. Finally, we checked its potential use as acetate biomarker in synthetic serum
Analisis Kesalahan Konsep Matematika Siswa dalam Menyelesaikan Soal Trigonometri Kelas X TKJ SMKN 1 Gempol Tahun Pelajaran 2016/2017
Authors: Andriani Tifaniar , Suastika I Ketut , Sesanti Nyamik Rahayu
Published: October 2018

Penelitian ini bertujuan untuk mengetahui kesalahan konsep matematika yang dilakukan siswa kelas X TKJ di SMK Negeri 1 Gempol dalam menyelesaikan soal trigonometri, dan sekaligus juga untuk mengetahui penyebabnya. Penelitian ini menggunakan pendekatan deskriptif kualitatif dengan subjek penelitian meliputi siswa kelas X TKJ 3 di SMK Negeri 1 Gempol. Teknik pengumpulan menggunakan tes dan wawancara. Teknik analisis data yang digunakan adalah reduksi data hasil tes dengan wawancara. Hasil penelitian menunjukkan bahwa kesalahan konsep matematika yang sering dilakukan oleh siswa yaitu siswa tidak mampu menyajikan konsep dalam berbagai representasi matematis. Diketahui penyebabnya adalah dikarenakan faktor internal dari siswa seperti pemahaman siswa yang masih kurang, lupa konsep yang sudah diajarkan dan lain-lain.
Pengaruh Model Pembelajaran Quantum Learning Terhadap Kemampuan Pemecahan Masalah Matematika Siswa Kelas VIII SMP PGRI 02 Ngajum
Authors: Riati Titik , Farida Nur
Published: October 2018

Tujuan utama dari pengajaran matematika adalah untuk membekali siswa dengan kemampuan berfikir kritis, logis, sistematis dan memiliki sikap objektif serta disiplin dalam memecahkan suatu permasalahan matematika. Pemecahan masalah merupakan kompetensi strategi yang ditunjukkan siswa dalam memahami, pendekatan dan strategi pemecahan masalah, serta penyelesaian model untuk menyelesaikan masalah. Model pembelajaran quantum learning merupakan salah satu model pembelajaran yang dapat meningkatkan kemampuan pemecahan masalah matematika, yang mengedepankan unsur-unsur kebebasan, santai, menyenangkan, dan menggairahkan. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh model pembelajaran quantum learning terhadap kemampuan pemecahan masalah matematika siswa SMP PGRI 02 Ngajum.

Metode penelitian yang digunakan dalam penelitian ini adalah metode penelitian eksperimen. Penelitian ini dilakukan SMP PGRI 02 Ngajum. Populasi dalam penelitian ini adalah siswa kelas VIII dan sampel penelitian ini yaitu kelas VIII A sebagai kelompok eksperimen dan kelas VIII B sebagai kelompok kontrol yang masing-masing berjumlah 19 siswa. Kelompok eksperimen diberi perlakuan dengan menggunakan model quantum learning sedangkan kelompok kontrol menggunakan pendekatan konvensional. Pengukuran kemampuan pemecahan masalah matematika dilakukan dengan menggunakan tes kemampuan pemecahan masalah berbentuk uraian yang harus diselesaikan dengan langkah-langkah pemecahan masalah menurut Polya.

Berdasarkan pengolahan data dan analisis data dengan menggunakan uji hipotesis diperoleh thitung = 3,446 > ttabel = 2,028, maka H0 ditolak dan H1 diterima sehingga dapat disimpulkan bahwa ada pengaruh model pembelajaran quantum learning terhadap kemampuan pemecahan masalah matematika siswa SMP PGRI 02 Ngajum pada pokok bahasan SPLDV.
EFEKTIFITAS TUTOR SEBAYA DALAM PEMBELAJARAN TRIGONOMETRI DI IKIP BUDI UTOMO MALANG
Authors: Listiani Welas , Kurniawati Anik , Purnamasari Ika Oktaviana
Published: October 2018

Penelitian ini bertujuan untuk mendeskripsikan langkah-langkah pembelajaran Trigonometri dengan metode tutor sebaya yang dapat meningkatkan hasil belajar mahasiswa Program Studi Pendidikan Matematika. Penelitian ini mengambil subjek mahasiswa kelas 2016A di IKIP Budi Utomo Malang yang terdiri dari tiga puluh lima mahasiswa. Peneliti menggunakan pendekatan kualitatif dengan jenis penelitian tindakan kelas (PTK). Kegiatan penelitian ini dilaksanakan dalam tiga siklus, dengan persentase keberhasilan masing-masing siklus adalah 34%, 50% dan 70%. Penelitian ini dilakukan dalam tiga siklus. Setiap siklus terdiri dari tahap perencanaan, pelaksanaan, observasi dan refleksi. Hasil penelitian menunjukkan bahwa langkah-langkah pembelajaran rigonometri dengan metode tutor sebaya dapat meningkatkan hasil belajar mahasiswa Program Studi Pendidikan Matematika angkatan 2016A IKIP Budi Utomo Malang.
The role of suppressor of cytokine signaling SOCS7 in the regulation of the phosphorylation of inhibitor of nuclear transcription factor NF-KB in mononuclear leukocytes and production of cytokines in community-acquired bacterial pneumonia
Authors: Bondar S. S. , Terekhov I. V. , Nikiforov V. S. , Parfenyuk V. K. , Bondar N. V.
Published: October 2018

The study discusses the relationship between the content of NF-KB and cytokine signaling suppressor 7 (SOCS7) in mononuclear peripheral blood cells (MNC) phosphorylated form of nuclear transcription factor inhibitor (NF-KB) and the production of MNC cytokines (TNF, IFN, IL-1β, IL-4, IL-10, IL-12) determining the state of congenital and adaptive immune response.

The content and level of phosphorylation of the nuclear transcription factor NF-KB (Ikba) inhibitor and the SOCS7 protein concentration were determined by enzyme immunoassay in MNC. In addition, the concentration of TNF, IFN, IL-1β, IL-4, IL-10, IL-12 was determined in cellular supernatants. The interrelations between the studied factors were evaluated by the method of linear regression analysis.

The results of the study indicate that the stage of recovery of community-acquired pneumonia is accompanied by a decrease in the level of IL-1, TNF and IL-4 and an increase in the production of Information. Also in the stage of convalescence there is a decrease in phosphorylation of Ikba and an increase in the concentration of SOCS7 in the OLS. The analysis revealed a significant effect on the level of phosphorylation of Ikba content in the cell SOCS7. Thus, a strong negative relationship between SOCS7 and phosphorylation of Ikba can be mediated by inhibition under its influence of STAT3/5 and MARK / SAPK-dependent cytokine production mechanisms, which allows to consider this factor as a therapeutic target for limiting excessive immunosuppression in pneumonia.
Comparison study of fast independent component analysis and constrained independent component analysis
Authors: Jing Shuangxi , Liu Qi , Luo Chenxu , Shi Penghui
Published: October 2018

Constrained Independent Component Analysis (cICA) was developed from Independent Component Analysis (ICA), and the concepts and principles of independent component analysis still apply to constrained independent component analysis. This paper introduces the mathematical basis, basic principles and algorithms of constrained independent component analysis. Firstly, the mathematical basis of cICA is introduced. It mainly includes the entropy and negative entropy of irrelevant and whitening, Statistical opposition and multivariate Gaussian density random variables. Then the mathematical model of Constrained FastICA, the identifiability and uncertainty of the model, the FastICA independence criterion, FastICA optimization and preprocessing, FastICA algorithm and simulation examples are introduced. Finally, the shortcomings of fast independent component analysis and the advantages of constrained independent component analysis are analyzed. According to the establishment and evaluation indicators of signals, the basic principles and corresponding algorithms of constrained independent component analysis are introduced. The characteristics of the corresponding simulation show that the algorithm is effective in extracting signal characteristics.
Parametric study of unsteady-flow-induced volute casing vibro-acoustics in a centrifugal fan
Authors: Zhang Jianhua , Chu Wuli , Lv Yi
Published: October 2018

A numerical parametric analysis of a vibro-acoustic coupling method that considered the influence of vibro-acoustic coupling was carried out to investigate the casing vibrations and feathers of vibrational noise induced by unsteady flow of the centrifugal fan at the best-efficiency point (BEP). There are three important aspects of this method. First, an unsteady flow-field with a whole impeller-volute configuration was solved based on three-dimensional incompressible Navier-Stokes equations and a standard k-ε turbulence mode to obtain the source of the vibro-acoustics. Second, a one-way-flow structural acoustic coupling method was implemented to study the volute vibrations and behaviors of vibrational noise by adoption. The generation mechanism of vibrational noise of the volute casing was revealed. Third, the parametric analysis method was used to explore the parametric relationship between the panel thicknesses (such as front-panel thickness [FT], side-panel thickness [ST], and back-panel thickness [BT]) and the outlet acoustical power of the volute casing surface. The parametric analysis provides a reasonable range of values of three panel thicknesses that result in minimal vibrational sound radiation.
Galloping behavior analysis of transmission line with thin ice accretions
Authors: Cui Fujiang , Liu Xijun , Zhang Suxia , Huo Bing , Zhou Anqi , Shi Ruizhi
Published: October 2018

A dynamic model of a galloping transmission line able to describe for the coupling of its longitudinal, in-plane, out-of-plane and torsional vibrations is established. It also considers the effects of geometrical nonlinearity and aerodynamic nonlinearity. By the static configuration, the reduced model is obtained. Then, the equations of motion are obtained through the Galerkin method. It contains two in-plane, two out-of-plane and two torsional components. By numerical calculation, the maximum amplitudes at wind speeds are drawn and the galloping behavior of transmission line with thin ice accretions is analyzed. The obtained results show that the second galloping mode is more triggered. The double-mode galloping occurs in all motions, in which the maximum amplitude is bigger than in single-mode galloping. And the double-mode galloping presents the track of inclined ‘8’ in longitudinal direction.
A simple laboratory experiment of the hindered settling process of high-concentration sediment suspension
Authors: Zhu Zhongfan , Li Fugen
Published: October 2018

In this study, a simple laboratory settling experiment is performed to examine the hindered settling process of high-concentration sediment suspension. In the suspension, the height of the clear water–turbid water interface undergoes an initial, rapidly decreasing phase followed by a slowly decreasing phase with increasing settling time. The influences of initial settling height, primary sediment concentration and the size distribution of the sediment sample on the hindered settling process of the suspension are investigated. A large initial settling height of the suspension leads to a slow settling velocity of the suspension during the rapidly decreasing phase. The larger the primary particle concentration of the suspension, the more gently the vertical position of the interface decreases during the rapidly decreasing phase. Increasing the primary particle concentration also causes the slowly decreasing phase to appear later. Finally, a fine-grained sediment suspension results in a gentle decrease in the vertical position of the clear water–turbid water interface and a small settling velocity of the interface during the rapidly decreasing phase.
Risk Factors for Different Grades of Lower Respiratory Tract Infections in Children Under Five Years Old with Measles: Based on Chest Radiography
Authors: Li Huanguo , Zhang Minming , Lao Qun , Ding Yushuang , Zhao Kaiyu , Xu Ruju
Published: October 2018

Background:

Although measles epidemic has been controlled effectively after measles
vaccination being carried out, China is still the focus of measles epidemic. The lower respiratory
tract infections (LRTIs) is the most common complication, and also the most common reason for
the death of patients with measles.

Purpose:

To analyze what clinical factors could affect the grades of LRTIs in children under five
years old with measles.

Methods:

Patients’ 13 clinical factors and chest radiography were analyzed retrospectively. Based
on the chest radiography, the LRTIs were divided into 3 grades. The clinical factors and the grades
of LRTIs were analyzed by ordered logistic regression analysis.

Results:

There were 74 cases in grade 0, 77 cases in grade 1, and 36 cases in grade 2. After univariate
logistic regression analysis, there were 5 clinical factors whose P value were no more than
0.1, including the children’s course of disease before admission, co-infection other pathogens, vaccination,
the first symptoms and gender. After ordinal logistic regression analysis, the difference in
the course of disease before admission (OR = 1.134, 95% CI: 1.025 to 1.141), without vaccination
(OR = 1.808, 95% CI: 1.065 to 3.065) and co-infected other pathogens other pathogens infections
(OR = 1.618, 95% CI: 1.073 to 2.440) during different grades was statistically significant
(P < 0.05).

Conclusion:

In our study, there were three clinical factors, including “with a long course of disease
before admission”, “without measles vaccination” and “with other pathogens infections”, as the independent
risk factors of the grades of LRTIs in children with measles.
Determining the Accuracy of the Mandibular Canal Region in 3D Biomodels Fabricated from CBCT Scanned Data: A Cadaveric Study
Authors: Abd Fattah Syed Yusoff Alzawawi Syed , Hariri Firdaus , Nambiar Phrabhakaran , Abu Bakar Zulkiflee , Abdul Rahman Zainal Ariff
Published: October 2018

Objective:

To validate the accuracy of the mandibular canal region in 3D biomodel produced by using data obtained from Cone-Beam Computed Tomography (CBCT) of cadaveric mandibles.

Methods:

Six hemi-mandible samples were scanned using the i-CAT CBCT system. The scanned data was transferred to the OsiriX software for measurement protocol and subsequently into Mimics software to fabricate customized cutting jigs and 3D biomodels based on rapid prototyping technology. The hemi-mandibles were segmented into 5 dentoalveolar blocks using the customized jigs. Digital calliper was used to measure six distances surrounding the mandibular canal on each section. The same distances were measured on the corresponding cross-sectional OsiriX images and the 3D biomodels of each dentoalveolar block.

Results:

Statistically no significant difference was found when measurements from OsiriX images and 3D biomodels were compared to the “gold standard” -direct digital calliper measurement of the cadaveric dentoalveolar blocks. Moreover, the mean value difference of the various measurements between the different study components was also minimal.

Conclusion:

Various distances surrounding the mandibular canal from 3D biomodels produced from the CBCT scanned data was similar to that of direct digital calliper measurements of the cadaveric specimens.
Gastrointestinal Protective Effect of Zizyphus xylopyrus (Retz) Willd Leaf Extract Against Indomethacin and HCl-EtOH Induced Ulcers
Authors: Jain Shweta , Jain Sourabh , Chauhan Nagendra S. , Vaidya Ankur
Published: October 2018

Background:

Zizyphus xylopyrus (Retz.) Willd. (Rhamnaceae) is a straggling
shrub or a small tree, armed with spines, found throughout north western India, Pakistan and
China.

Methods:

The aerial and root barks, leaves and fruits of Zizyphus species are used in medicine
for the treatment of various diseases such as weakness, liver complaints, obesity, diabetes,
skin infections, fever, diarrhea, insomnia and digestive disorders. Ethanolic extract of
leaves of Zizyphus xylopyrus (Retz) Willd was prepared by solvent extraction and subjected
to study the protective effect against Indomethacin and HCl-EtOH induced ulcer using Ranitidine
(100 mg/kg) and Omeprazole (8 mg/kg) as standard respectively.

Results:

Histopathological lesions with marked disorientation of the gastric epithelium was
observed in negative control, while extract treated rats showed a better protected mucosa
with intact epithelium in comparison to standard treated rats. Ulcer index and percentage ulcer
protection also represent protecting effects of the extract.

Conclusion:

Ethanolic extract of Z. xylopyrus (Retz) Willd leaves extract was found to be
significantly protective against gastric ulcers.
Aberration of Metals Competing for Iron on Exposure to Lambda Cyhalothrin and Aflatoxins in Dietary Fish from Selected Aquatic Sources in Kenya
Authors: Onyangore Faith Obegi , Ochuodho Julius , Osano Odipo , Omondi Cornell Akwiri
Published: October 2018

Excess or deficiency of minerals may seriously disturb biochemical processes and upset internal homeostasis, leading to various diseases and disorders in fish species due to deficiency or excess of micro and macro elements caused by improper nutrition, avitaminosis or poisoning. The specific objectives of the study were to determine the iron levels and aberration of metals competing on exposure to lambda-cyhalothrin and aflatoxins in dietary fish from selected aquatic sources in Kenya. The concentration of elements cadmium, zinc, and iron in Oreochromis niloticus and Clarias gariepinus bred in Kenya Marine and Fisheries Research Institute at Sagana and obtained from River Nyando was measured using atomic absorption spectrophotometer. Iron availability was lower on treatment with Aflatoxin compared to Lambda-Cyhalothrin with a mean of 3.66 ± 0.84 mg/kg, but on subjection to zinc, competition was 3.82 mg/kg on consideration of zinc competition. The naturally occurring toxins cause micronutrient deprival and therefore relevant stakeholders be keen to prevent contamination from farm to fork.
SPK: ALGORITMA MULTI-ATTRIBUTE UTILITY THEORY (MAUT) PADA DESTINASI TUJUAN WISATA LOKAL DI KOTA SIDAMANIK
Authors: Satria Edy , Atina Nurul , Simbolon Maria Etty , Windarto Agus Perdana
Published: October 2018

Wisata lokal saat ini berpotensi untuk dikembangkan sebagai salah satu sumber pendapatan daerah dengan mendayagunakan sumber daya yang dapat memberikan sumbangan bagi pembangunan ekonomi pada suatu daerah tersebut. Kota Sidamanik merupakan kota yang mempunyai banyak wisata alam yang masih alami. Dan juga suasana alam yang indah dikelilingi perkebunan teh yang sangat menarik perhatian para wisatawan lokal maupun asing. Dalam hal ini terkadang banyak para wisatawan bingung untuk menentukan wisata mana yang akan mereka kunjungi untuk dapat menyesuaikan keinginan mereka, mengingat beberapa wisata yang ada di kota sidamanik. Penelitian ini menggunakan Metode MAUT (Multi-Attribute Utility Theory) untuk merekomendasikan destinasi wisata lokal yang ada di kota Sidamanik. Pengolahan nilai menggunakan metode Maut akan menghasilkan nilai rangking. Hasil dari penelitian ini yaitu rekomendasi destinasi tujuan wisata lokal di Kota Sidamanik adalah wisata Bah Biak. Hasil nilai yang di peroleh dari wisata lokal Bah Biak adalah 0,847 dan menempati nilai tertinggi dari keempat wisata lokal yang ada di Kota Sidamanik Kab. Simalungun Provinsi Sumatra Utara.
REKOMENDASI BENTUK PENGEMBANGAN RUANG TERBUKA HIJAU DI KOTA PONTIANAK MENGGUNAKAN METODE AHP-COPRAS
Authors: Midyanti Dwi Marisa
Published: October 2018

Ruang Terbuka Hijau (RTH) Ruang Terbuka Hijau (RTH) adalah area memanjang/jalur dan /atau mengelompok, yang penggunaannya bersifat terbuka, tempat tumbuh tanaman, baik yang tumbuh secara alamiah maupun yang sengaja ditanam. RTH di kawasan perkotaan membutuhkan strategi dan desain tertentu dalam pengembangannya. Penelitian ini akan merekomendasikan bentuk pengembangan RTH di Kota Pontianak dari hasil perhitungan dengan menggunakan metode AHP-COPRAS. Metode AHP digunakan untuk menghitung bobot-bobot dari 4 kriteria yaitu ekologi, sosial, ekonomi dan estetika. Metode COPRAS digunakan untuk menentukan alternatif terbaik dari 24 kriteria yang ada. Dari hasil perhitungan AHP-COPRAS didapat alternatif terbaik untuk bentuk RTH di Kota Pontianak adalah Kawasan Penyerap Air Hujan. Terdapat 7 alternatif yang di rekomendasikan berdasarkan  nilai indeks kinerja (Pi) diatas rata-rata yaitu Kawasan Penyerap air hujan, Kawasan Pemicu kreativitas dan produktivitas, Kawasan paru-paru Kota, Jalur paru-paru Kota, Jalur Penyerap air hujan, Kawasan Sarana olahraga, pendidikan dan rekreasi dan Jalur Keindahan kota.