bluuebunny/crossref_metadata_2025 huggingface dataset:
A Mathematical Approach for Computing the Linear Equivalence of a Periodic Key-Stream Sequence Using Fourier Transform
Authors: Journal Baghdad Science
Published: March 2019

A mathematical method with a new algorithm with the aid of Matlab language is proposed to compute the linear equivalence (or the recursion length) of the pseudo-random key-stream periodic sequences using Fourier transform. The proposed method enables the computation of the linear equivalence to determine the degree of the complexity of any binary or real periodic sequences produced from linear or nonlinear key-stream generators. The procedure can be used with comparatively greater computational ease and efficiency. The results of this algorithm are compared with Berlekamp-Massey (BM) method and good results are obtained where the results of the Fourier transform are more accurate than those of (BM) method for computing the linear equivalence (L) of the sequence of period (p) when (L) is greater than (p/2). Several examples are given for conciliated the accuracy of the results of this proposed method.
Quantitative and Qualitative detect for cheat beef with chicken meat by immunological methods
Authors: Journal Baghdad Science
Published: March 2019

beef and chicken meat were used to get Sarcoplasim, the chicken Sarcoplasim were used to prepare antibody for it after injected in rabbit, the antiserums activity were 1/32 by determined with Immune double diffusion test, the self test refer to abele for some antiserums to detected with beef sarcoplasim, which it mean found same proteins be between beef and chicken meat, which it refer to difficult depended on this immune method to detect for cheat of chicken meat with beef, so the antibody for beef sarcoplasim were removed from serum by immune absorption step to produce specific serum against chicken sarcoplasim that it used in Immune double diffusion test to qualitative detect for cheat beef with 5% chicken meat or more at least, and the Immune diffusion test were used to quantitative determined for cheat in 5-50%, this test were showed linear correlation between cheat percent and zone that it showed in gel, the evaluation test results were showed able to cheat beef by add chicken meat up to 25% with out to feel it, while the Immune diffusion test could to detect cheat in this percent and less.
Use of cefoxitin as indicator for detection of Methicillin Resistant Staphylococcus aureus
Authors: Journal Baghdad Science
Published: March 2019

Rapid and accurate identification of Methicillin Resistant Staphylococcus aureus is essential in limiting the spread of this bacterium. The aim of study is the detection of Methicillin Resistant Staphylococcus aureus (MRSA) and determining their susceptibility to some antimicrobial agent.
A total of fifty clinical Staphylococcus aureus, isolated from the nose of health work staff in surgery unit of Kalar general hospital and from ear of patients attended to the same hospital. The susceptibilities of isolates were determined by the disc diffusion method with oxacillin (1 ?g) and cefoxitin (30 ?g), and by the mannitol salt agar supplemented with cefoxitin (MSA-CFOX), susceptibilities of isolates to other antimicrobial agent were determined by standard disc diffusion method, Brain heart infusion (BHI) agar with vancomycin was used for detection of vancomycin resistant Staphylococcus aureus.
out of fifty clinical isolates of Staphylococcus aureus 36/50(72%) considered to be MRSA according to MSA-CFOX growth and cefoxitin disc susceptibility results with critical diameter
Effect of alcoholic extract of Adhatoda vasica leaves on some biological performance of Ceratitis capitata larvae
Authors: Journal Baghdad Science
Published: March 2019

Many biological tests were done to study the effect of the crude alcoholic leaves extracts on the biological characteristics at the larvae fruit fly Ceratitis capitata with different concentrations of the extracts exposed 1,2,3,5 and 7.5 % at constant laboratory conditions includes the temperature and the relative humidity (27±2C0&70±5 % respectively).
The results of the experiments showed that the alcoholic extracts of the plant effected the growth and the development of the larvae and pupae according to the concentrations . The alcoholic extracts proved to have the highest mortality tend to 66.76 % in larva treated with alcoholic at concentration 7.5 % the result also showed that, there was no signifecant differences on the perid of larva pupation that treated with the different concentration.
Spectrofluorimetric method for the determination of glibenclamide in pharmaceutical formulations
Authors: Journal Baghdad Science
Published: March 2019

A sensitive spectrofluorimetric method for the determination of glibenclamide in its tablet formulations has been proposed. The method is based on the dissolving of glibenclamide in absolute ethanol and measuring the native fluorescence at 354 nm after excitation at 302 nm. Beers law is obeyed in the concentration of 1.4 to 10 µg.ml-1 of glibenclamide with a limit of detection (LD) of 0.067 µg.ml-1 and a standard deviation of 0.614. The range percent recoveries (N=3) is 94 - 103.
Studying HLA class I polymorphism in brain tumour patients
Authors: Journal Baghdad Science
Published: March 2019

The present study aimed at shed light on the association between HLA-class I antigens (A, B and Cw) and brain tumours (meningioma and glioma) in the basis of their individual frequencies or two-locus association A total of 52 brain tumour patients were enrolled in this study, with an age range of 7-68 years. The patients were divided into two clinical groups; meningioma (20 cases) and glioma (22 cases), while the remaining 10 cases represented other types of brain tumour. Control samples included 47 Iraqi Arab apparently healthy blood volunteers, with an age range of 15-50 year. Three HLA antigens showed a significant increased frequency in total patients as compared to controls. They were B13 (34.6 vs. 6.5%), B40 (15.4 vs. 2.2%) and Cw3 (15.4 vs. 2.2%). In contrast, B5 was significantly decreased (15.4 vs. 34.8%). In meningioma patients, only B13 was significantly increased (35.0 vs. 6.5%), while in glioma patients, B13 (36.4 vs. 6.5%) and Cw5 (36.4 vs. 2.2%) were significantly increased. Variations between patients and controls have been also encountered for the observed and expected HLA-two locus associations (B13-Cw3, B13-Cw5 and B40-Cw5).
Preparation , charactarazition and biological activity of some complexes of potassium 2-carbomethoxy amino-5- trithiocarbonate 1,3,4-thiadiazole
Authors: Journal Baghdad Science
Published: March 2019

In this study a new ligand ,(potassium 2-carbomethoxy amino-5-trithiocarbonate 1,3,4-thiadiazole) (L) has been prepared from 2-carbomethoxy amino-5-mercapto 1,3,4-thiadiazole with CS2 in alkali media . The product has been isolated and characterized by appropriate physical measurements, vibrational and electronic spectroscopy. The ligand was used to prepare a number of complexes with some metal ions Co(II), Ni(II) and Cu(II). These complexes have been characterized by FT-IR, UV-Vis spectra, molar conductivity, magnetic susceptibility, melting points and atomic absorption measurements. The nickel and copper complexes have an octahedral geometry while cobalt complex has a tetrahedral geometry. The nature of bonding between the metal ion and the donor atom of the ligand was demonstrated through the calculated Racah parameter and other ligand field parameters, which have been calculated by using a suitable Tanaba-Sugano diagram The biological activity of the ligand and it’s complexes have been examined against two selected microorganisms Pseudomonas aeruginsa and Staphylococcus aureus using (10mM) and (5mM) in nutrient agar medium. The results were showed enhancement of activity of some complexes compared to that of the respective ligand, which were attributed to the synergetic effect between the metal ion and the ligand in addition to the difference in the structural varieties.
Reactivity Ratios of the Copolymerization Styrene/ Methyl Methacrylate Using FT-IR Spectroscopy with Comparing to Mathematically Method
Authors: Journal Baghdad Science
Published: March 2019

Free Radical Copolymerization of Styrene/ Methyl Methacrylate were prepared chemically under Nitrogen ,which was investigated, in the present of Benzoyl Peroxide as Initiator at concentration of 2 × 10-3 molar at 70 °C, which was carried out in Benzene as solvent to a certain low conversion . FT-IR spectra were used for determining of the monomer reactivity ratios ,which was obtained by employing the conventional linearization method of Fineman-Ross (F-R) and Kelen-Tüdos (K- T). The experimental results showed the average value for the Styrene r1 / Methyl Methacrylate r2 system, Sty r1 = 0.45 , MMA r2 = 0.38 in the (F–R) Method and r1 = 0.49 , r2 = 0.35 in the (K–T) Method, The Results of this indicated show the random distribution of monomers in the copolymer.Likewise The monomer reactivity ratios were evaluated Mathematically in comparison in the (F–R) Method with the data STY r1 = 0.61 , MMA r2 = 0.47 , and r1 = 0.45 , r2 =0.38 in the (K–T) Method. And were used the values r1 ,r2 for STY / MMA Copolymers in computing integral curves for the instantaneous Copolymer composition throughout the whole range of conversion.
Heterosis in Flue‐Cured Tobacco and Its Utility in Predicting Transgressive Segregation within Derived Populations of Inbred Lines
Authors: Dexter-Boone Abigail , Lewis Ramsey S.
Published: March 2019

Heterosis might be used in a strategic way to increase yields of flue‐cured tobacco (Nicotiana tabacum L.), but previous reports have suggested levels of heterosis to be low for F1 hybrids of this market class. Based on analysis of a 14‐parent diallel, we found average levels of F1 midparent heterosis to be 10.3%, a level that is substantially higher than previous estimates from the 1960s. Thirteen of ninety‐one tested hybrids significantly outyielded the highest yielding parental lines. Heterosis might also be an indicator of superior allelic complementation by parental lines that, in principle, could be fixed in derived inbred lines. We compared F3:4 families derived from three high heterotic crosses and three low heterotic crosses and observed positive correlations between F1 heterosis and desirable transgressive segregation. Hence, the data support the use of F1 heterosis as a predictor of breeding crosses with increased potential for desired outcomes. Several derived F3:4 families exhibited yields that were comparable with, or significantly better than, corresponding heterotic F1 hybrids, indicating that heterotic effects could be fixed within inbred lines. Results suggest a reconsideration of heterosis for increasing yields of flue‐cured tobacco.
Environmental Scanning Electron Microscopy Application for Brackish Water Irrigation Impact on Soil
Authors: Valdes-Abellan J. , Candela L. , Medero G. M. , Buckman J.
Published: March 2019

Core Ideas

Long‐term irrigation with brackish water can extend the practice into water‐scarce regions.

ESEM in both dynamic and static modes is a promising technique to analyze soil impacts.

Changes linked to the hydrophilic behavior of soils can be detected.

We investigated soil response to irrigation with slightly brackish water (1200 mg L−1 total dissolved solids on average) in a semiarid environment at the microscopic scale using environmental scanning electron microscopy (ESEM) applied in static and dynamic modes, which allowed comparison between nonirrigated and 3‐yr‐irrigated soil samples to determine the impact of applied brackish water. Results indicate that (i) there was a change in soil hydrophilic behavior by the continuous accumulation of water‐borne salt in the soil matrix, (ii) compared with nonirrigated samples, the wetting process occurred more gradually for the 3‐yr‐irrigated sample, (iii) the wetting process started at a lower vapor pressure for the 3‐yr‐irrigated sample, (iv) water vapor pressure in the chamber at full saturation was lower for the 3‐yr‐irrigated sample, and (v) the presence of heavy metals in the soil was more frequent in irrigated samples. Our results show that ESEM is a useful technique to determine the impacts on soil of irrigation with slightly brackish water.
Estimating Deep Drainage Using Deep Soil Moisture Data under Young Irrigated Cropland in a Desert‐Oasis Ecotone, Northwest China
Authors: Zhang Yongyong , Zhao Wenzhi , Ochsner Tyson E. , Wyatt Briana M. , Liu Hu , Yang Qiyue
Published: March 2019

Core Ideas

Deep drainage rates under young cropland in the desert‐oasis region were investigated.

Deep drainage rates were estimated by a simulation approach based on deep soil moisture data.

Annual deep drainage averaged 468 mm; the annual deep drainage coefficient averaged 43%.

Deep drainage reduces agricultural water productivity under cropland recently converted from native desert soils (i.e., young cropland) and increases the risks of nutrient and pesticide leaching into groundwater in the desert‐oasis ecotone. However, the deep drainage rates under young cropland in these oasis environments remain unclear, especially for winter irrigation, a common practice in Northwest China. The objective of this study was to estimate the deep drainage rate using the HYDRUS‐1D model based on soil moisture data in the deep vadose zone. Soil moisture at depths ranging from 0 to 200 cm was measured using HydraProbe II soil sensors in maize (Zea mays L.) and wheat (Triticum aestivum L.) fields in 2015 and 2017, respectively. Using a novel simulation approach based on soil moisture data in the deep vadose zone, the HYDRUS‐1D model provided reliable estimates of deep drainage as confirmed by comparison with estimates from the soil water balance method and prior studies in the region. The annual deep drainage averaged 468 mm, and the annual deep drainage coefficient averaged 43% in the young croplands. The winter irrigation amount averaged 265 mm, and the deep drainage coefficient during winter averaged 21% in the young croplands. The sandy soil of the young cropland and inefficient irrigation scheduling are detrimental to water conservation, causing relatively large deep drainage losses and enhancing the risks of groundwater pollution.
Diseño y validación de una escala de actitudes hacia la paternidad para muestras colombianas
Authors: Camacho-Reyes Daniela , Cardona-Rodríguez Mariana , González-Rojas Daniela , Rincón-Cervera Ingri Paola , Zarta-Arizabaleta Maria Alejandra , Riveros Munévar Fernando
Published: March 2019

La familia es el sistema transmisor de comportamientos por excelencia y la pareja, en el momento de decidir tener un hijo, reflexiona acerca de ciertos ideales y expectativas con respecto a la forma de crianza que, en los hombres, determina el valor de la carga emocional y poder en el género masculino. Por lo anterior, el objetivo de este estudio fue diseñar y validar una escala para medir las actitudes hacia la paternidad, que delimitan aspectos comportamentales eficaces para una buena crianza. Para ello se realizó una tabla de especificaciones y se construyeron los reactivos, los cuales fueron sometidos a validación por jueces. Se realizó el ajuste de la escala, y fue aplicada a 240 hombres colombianos con edades comprendidas entre los 18 y 52 años (media=24,7). Tras hacer el análisis factorial exploratorio, se agruparon los reactivos con base a lo sugerido por el programa y se hizo la depuración pertinente según los resultados obtenidos. Ulteriormente, dichos resultados se sometieron a un análisis factorial confirmatorio, verificando el ajustedel modelo. Los índices de validez y concordancia indicaron que los ítems eran esenciales, el análisis de correlaciones indicó homogeneidad entre los ítems y el instrumento mostró tener alta fiabilidad. En conclusión, se puede afirmar que la Escala de actitudes hacia la paternidad es una escala válida y confiable para ser utilizada en población colombiana, recomendando repetir el estudio para replicar estos hallazgos y estimar la plausibilidad de ser extrapolada al género femenino.
Recent Advances and Challenges in Steroid Metabolomics for Biomarker Discovery
Authors: Kotłowska Alicja , Szefer Piotr
Published: March 2019

Background:

Steroid hormones belong to a group of low-molecular weight compounds which are responsible for maintenance of various body functions, thus, their accurate assessment is crucial for evaluation of biosynthetic defects. The development of reliable methods allowing disease diagnosis is essential to improve early detection of various disorders connected with altered steroidogenesis. Currently, the field of metabolomics offers several improvements in terms of sensitivity and specificity of the diagnostic methods when opposed to classical diagnostic approaches. The combination of hyphenated techniques and pattern recognition methods allows to carry out a comprehensive assessment of the slightest alterations in steroid metabolic pathways and can be applied as a tool for biomarker discovery.

Methods:

We have performed an extensive literature search applying various bibliographic databases for peer-reviewed articles concentrating on the applications of hyphenated techniques and pattern recognition methods incorporated into the steroid metabolomic approach for biomarker discovery.

Results:

The review discusses strengths, challenges and recent developments in steroidbased metabolomics. We present methods of sample collection and preparation, methods of separation and detection of steroid hormones in biological material, data analysis, and interpretation as well as examples of applications of steroid metabolomics for biomarker discovery (cancer, mental and central nervous system disorders, endocrine diseases, monitoring of drug therapy and doping control).

Conclusion:

Information presented in this review will be valuable to anyone interested in the application of metabolomics for biomarker discovery with a special emphasis on disorders of steroid hormone synthesis and metabolism.
Diagnostic Value of MiR-125b as a Potential Biomarker for Stage I Lung Adenocarcinoma
Authors: Zeybek Arife , Öz Necdet , Kalemci Serdar , Edgünlü Tuba , Kızıltuğ Mehmet Tuğhan , Tosun Kürşad , Tunç Mustafa , Tekin Leyla , Erdal Mehmet Emin
Published: March 2019

Background:

We aimed at exploring biological functions of differentially expressed miRNAs during carcinogenesis, to identify miRNAs dysegulations involved in DNA repair mechanisms, and to evaluate potential of miRNAs as prognostic and diagnostic biomarkers for early lung adenocarcinomas (LAC).

Methods:

We obtained 21 LAC and paired adjacent normal formalin-fixed, paraffinembedded lung tissues from patients who underwent curative resection for stage I LAC. We compared expression levels of eight miRNAs involved in the DNA repair mechanism between LAC and adjacent tissues.

Results:

Expressions of Hsa-miR-9-5p, hsa-miR-24-3p, hsa-miR-125a-3p, hsa-miR- 125b-5p, hsa-miR-155-5p, and hsa-let-7a-5p were significantly up-regulated in stage I LAC tissues compared with those in the adjacent tissues. In addition, expressions of hsa-mir-9-5p, hsa-mir-24-3p, hsa-mir-125a-3p, hsa-mir-125b-5p, and hsa-mir-155-5p were significantly up-regulated in stage Ia LAC tissues, whereas expressions of hsa-mir- 125a-3p and hsa-mir-125b-5p were significantly up-regulated in stage Ib LAC tissues. Receiver operating characteristic (ROC) analysis revealed that AUROC of hsa-mir-125b- 5p was 0.875 (P < 0.001).

Conclusion:

Expression of hsa-mir-125b-5p could be used to distinguish LAC from adjacent tissues. Our result suggests that hsa-mir125b-5p can be a prognostic and diagnostic biomarker for LAC.
A Developmental Psychopathology Perspective of Obsessive-Compulsive Disorder
Authors: Capawana Michael R.
Published: March 2019

Objective:

This integrative review explores Obsessive-Compulsive Disorder (OCD) from the perspective of developmental psychopathology, in terms of its multifaceted etiology and course.

Background:

Individuals affected by OCD experience intrusive and undesired thoughts accompanied by behaviors used to mitigate the unwanted images. Accordingly, there are several sub-types and personality dispositions reflective of the overall continuum of OCD, spanning normality and psychopathology. The etiology is complex, with generalized psychological and biological vulnerabilities, as well as contributors from life stress. Moreover, OCD is a disorder with a highly comorbid and overlapping presence; therefore, difficulties may arise when differentiating between OCD and other problems.

Conclusion:

Treatment non-responsiveness is a pervasive trend in persons afflicted with OCD, but the most effective approach likely involves a stepped-care model incorporating cognitive-behavioral psychotherapy and psychotropic medications. Other considerations will also be discussed.
The Roles of Different Stem Cells in Premature Ovarian Failure
Authors: Zhang Cheng
Published: March 2019

Premature ovarian failure (POF) is characterized by amenorrhea, hypergonadotropism and
hypoestrogenism before the age of 40, which affects 1% of women in the general population. POF is
complex and heterogeneous due to its pathogenetic mechanisms. It is one of the significant causes of
female infertility. Although many treatments are available for POF, these therapies are less efficient and
trigger many side effects. Therefore, to find effective therapeutics for POF is urgently required. Due to
stem cells having self-renewal and regeneration potential, they may be effective for the treatment of ovarian
failure and consequently infertility. Recent studies have found that stem cells therapy may be able to
restore the ovarian structure and function in animal models of POF and provide an effective treatment
method. The present review summarizes the biological roles and the possible signaling mechanisms of the
different stem cells in POF ovary. Further study on the precise mechanisms of stem cells on POF may
provide novel insights into the female reproduction, which not only enhances the understanding of the
physiological roles but also supports effective therapy for recovering ovarian functions against infertility.
Safety and Efficacy of Levetiracetam for the Management of Levodopa- Induced Dyskinesia in Patients with Parkinson’s Disease: A Systematic Review
Authors: Ebada Mahmoud A. , Alkanj Souad , Ebada Mohamed , Abdelkarim Ahmed H. , Diab Ahmed , Aziz Mohamed A.E. , Soliman Ahmed M. , Fayed Notila , Bahbah Eshak I. , Negida Ahmed
Published: March 2019

Background:

Levetiracetam, a novel antiepileptic drug, has shown antidyskinetic effects in
experimental animal models of Parkinson's disease (PD). The tolerability and efficacy of levetiracetam
in reducing the levodopa-induced dyskinesia (LID) in PD patients have not been established. Therefore,
this study aims to synthesize evidence from published prospective clinical trials about the efficacy
of levetiracetam for the management of LID in PD patients.

Methods:

We followed the PRISMA statement guidelines during the preparation of this systematic review.
A computer literature search of PubMed, EBSCO, Scopus, MEDLINE, and the web of science
was carried out. We selected prospective clinical trials assessing the anti-dyskinetic efficacy of
levetiracetam for treating LID in patients with PD. The Abnormal Involuntary Movement Scale
(AIMS), Clinical Global Impression Score (GCI), UPDRS III, and UPDRS IV were considered as the
primary outcome measures; their data were extracted and reviewed.

Results:

Our review included seven clinical trials with a total of 150 patients. Of them, three studies
were randomized controlled trials, and the remaining were open-label single arm trials. Four studies
reported poor tolerability of the levetiracetam with mild anti-dyskinetic effects. Levetiracetam slightly
improved the UPDRS-IV and AIMS scores with small effect size. In the remaining three studies,
levetiracetam failed to exhibit any anti-dyskinetic effects.

Conclusion:

Current evidence does not support the efficacy of the levetiracetam for treating LID in
PD patients, however, due to the limited number of published randomized control trials (RCTs), further
RCTs are required.
Evaluation of Second Generation Antipsychotics, as Augmentative Plan, in Treatment-Resistant Obsessive-Compulsive Disorder
Authors: Shafti Saeed S. , Kaviani Hamid
Published: March 2019

Introduction:

Since around half of the patients with obsessive-compulsive disorder
do not respond efficiently to current serotonin- reuptake inhibitors, the objective of
the present study was to compare the effectiveness and safety of quetiapine against aripiprazole
in patients with obsessive-compulsive disorder, who had not responded successfully
to fluvoxamine.

Methods:

Forty-four patients with obsessive-compulsive disorder, who had not responded
efficaciously to fluvoxamine, at maximum dose (300 milligrams per day) and duration
(twelve weeks), were allocated randomly in a double-blind assessment to take quetiapine
(n=22) or aripiprazole (n=22), plus their serotonin-reuptake inhibitor for twelve weeks.
While treatment response was evaluated by the Yale- Brown Obsessive-Compulsive Scale
(YBOCS), as the main outcome scale, Clinical Global Impressions-Severity Scale (CGI-S)
was also used as an ancillary measure.

Results:

54.54% of patients in the quetiapine group and 27.27% of them in the aripiprazole
group responded partially to the abovementioned on treatment adds. According to the findings,
the YBOCS score dropped from 31.18+/-4.93 to 27.97+/-3.71 (p<0.01), and 33.27 +/- 3.90
to 30.72+/-4.67 (p < 0.06), for quetiapine and aripiprazole, respectively. In this regard, no
substantial alteration regarding CGI-S was evident in each of the aforementioned groups.

Conclusion:

This assessment indicated that patients with treatment-resistant obsessivecompulsive
disorder could benefit more from adding quetiapine, in comparison with aripiprazole,
to their current serotonergic medication.
Paradijsvogel in de Gelderse politiek
Authors: Wessels Leon
Published: March 2019

Review of Bert Koene, Een leven zonder toegeeflijkheid. Oranjeman Suideras, 1743-1811 (Hilversum: Uitgeverij Verloren, 2016, 176 p., ill., index)
Pengembangan lembar kerja peserta didik kimia berbasis inkuiri terbimbing untuk kelas Xi IPA SMA/MA
Authors: Rizalini Rina , Sofyan Herminarto
Published: March 2019

Penelitian ini bertujuan untuk: (1) menghasilkan Lembar Kerja Peserta Didik (LKPD) kimia berbasis inkuiri terbimbing yang layak untuk peserta didik kelas XI IPA SMA, (2) mengetahui kepraktisan LKPD berbasis inkuiri terbimbing, dan (3) mengetahui keefektifan LKPD berbasis inkuiri terbimbing. Penelitian ini merupakan penelitian dan pengembangan yang menggunakan model Thiagarajan. Prosedur pengembangan meliputi tahap pendefinisian, perancangan, dan pengembangan. Tahap pendefinisian dilakukan survei untuk menganalisis permasalahan dan kebutuhan peserta didik. Tahap perancangan disesuaikan dengan kebutuhan dalam kegiatan pembelajaran. Tahap pengembangan dilakukan validasi ahli materi dan media kemudian diimplementasikan di kelas XI IPA SMAN 2 Wates pada 20 peserta didik. Hasil penelitian menunjukkan bahwa: (1) Hasil validasi LKPD kimia yang dikembangkan dikategorikan layak berdasarkan hasil validasi ahli materi dengan rerata skor 3,8 dan ahli media dengan rerata skor 4,0, (2) tingkat kepraktisan LKPD berada dalam kategori sangat baik, dan (3) keefektifan LKPD memperoleh sig < 0,05 membuktikan ada perbedaan yang signifikan antara kelas eksperimen dan kontrol.Kata Kunci: lembar kerja peserta didik, kimia, inkuiri terbimbing DEVELOPING CHEMISTRY WORKSHEETS BASED ON GUIDED INQUIRY FOR THE SECOND GRADE STUDENTS OF SENIOR HIGH SCHOOLAbstractThis research study aims to: (1) produce valid chemistry worksheets based on guided inquiry for the second grade students of senior high school, (2) know the practically of worksheets based on guided inquiry, and (3) know the effectiveness of worksheets based on guided inquiry. This study was research and development using the Thiagarajan model. The procedure of the development included the steps of defining, designing, and developing. In the defining step, a survey to analyze the problems and student’s needs. The designing step, was conducted the needs of the learning activities. The development step a validation was done by materials and media experts then implementation in class XI science of SMAN 2 Wates to 20 students. The result of the study shows: (1) the chemistry worksheets produced fullfills the appropriateness criteria based on the result of materials experts with the mean score 3.8 and media experts is 4.0 which is in a good category, (2) the practically level is in the very good category, and (3) the effectiveness of worksheets obtaining sig < 0.05 proves there is a significant difference between the experimental and control class.Keywords: worksheets, chemistry, guided inquiry
Using the Extended Parallel Process Model to Examine the Nature and Impact of Breast Cancer Prevention Information on Mobile-Based Social Media: Content Analysis (Preprint)
Authors: Chen Liang , Yang Xiaodong , Fu Lunrui , Liu Xiaoming , Yuan Congyi
Published: March 2019

BACKGROUND

With the rise of mobile technology, an increasing number of people use mobile-based social media to access health information. Many scholars have explored the nature of health information on social media; however, the impact of such information on people was understudied.

OBJECTIVE

This study aimed to examine the nature and impact of health information on mobile-based social media. Specifically, we investigated how the levels of threat and efficacy of breast cancer prevention information affect individuals’ engagement with the information, such as readings and likes.

METHODS

Breast cancer prevention articles posted on a Chinese mobile-based social media platform (ie, WeChat Subscription Account [WeChat SA]) from January 1 to December 31, 2017, were extracted using the Python Web Crawler. We used content analysis and analysis of covariance to analyze our data.

RESULTS

The results revealed that the vast majority of titles and main bodies of the articles involved one of the extended parallel process model components: threat or efficacy.

CONCLUSIONS

Breast cancer prevention information on WeChat SA was well designed. Both threat and efficacy significantly affected the number of readings, whereas only efficacy had a significant effect on the number of likes. Moreover, breast cancer prevention information that contained both high levels of threat and efficacy gained the largest number of readings and likes.
Akseptabilitas Es Krim dengan Fortifikasi Mesocarp Lontar (Borassus flabeliffer L.) sebagai Antioksidan dan Serat Pangan Alami
Authors: Idayati Eny , Bele Agrippina Agnes , Sir Rikka Welhelmina
Published: March 2019

Lontar palm (Borassus flabeliffer L.) fruit is one of the specific tropical fruits from East Nusa Tenggara province (NTT)-Indonesia that is rich in functional compounds such as beta-carotene as an antioxidant and food fiber.  However, the utilization of these fruits is still limited due to the streroidal saponins and pholifenol content that makes them taste bitter and less favored by consumers. Therefore, one alternative that can be done is by enriching them into ice cream products. The production of Ice cream cannot go through with high heating processing so that the antioxidants extracted from lontar palm mesocarp can be in a stable condition. The aim of this study is to investigate the effect of ice cream on the acceptability values of the hedonic test, determining of fiber and beta-carotene content and evaluating antioxidant activities fortification from the lontar's mesocarp. The amount of lontar mesocarp for fortification (F) were 30%, 40% and 50% of the wet weight with the combination of some variation of milk treatment such as full cream milk, sweetened condensed milk, and liquid soy milk. The acceptability of the product was tested using hedonic test against color, aroma, texture, and flavor parameter. Antioxidant activity was performed by determination of the DPPH value (1.1-diphenyl-2picryhydrazil radical-scavenging), dietary fiber using enzymatic-gravimetric methods and UV-Vis spectrophotometers to analyze the content of beta-carotene. The results showed that on the acceptability test, the most preferred samples valued by panelists were the fortification, F1 treatment  (30%) with the content of β-carotene of full cream milk was 2212.44 ± 11.82 μg /100 mg, dietary fiber was 8.95 ± 0.05%, and antioxidant activity was 45.54 ± 0.36%.
Sifat Fungsional Pati Ubi Kelapa Kuning (Dioscorea alata) dan Pemanfaatannya sebagai Pengental pada Saus Tomat
Authors: Ulyarti U , Lavlinesia L , Nuzula N , Nazarudin N
Published: March 2019

The aim of this research was to determine the functional properties of yellow greater yam’s starch (Dioscorea alata) and its ability to acts as thickening agent for tomato sauce. This research was carried out in 2 stages: starch extraction followed by determination of its physical and functional properties and production of tomato sauce using completely randomized design with 5 levels of starch concentration and 4 replications. The levels were 0, 1, 2, 3 and 4% which was calculated from tomato pulps. Functional properties of yellow greater yam’s starch showed the capability as thickening agent but had quite high setback value.  The result showed that the concentration of yellow greater yam’s starch significantly affect viscosity and syneresis (p <0 .01) and a* value (p < 0.05) but did not affect water content, total soluble solid, L* and b* of the tomato sauce.  Although creates an obvious color difference (ΔE>3), the concentration of 2% yellow greater yam’s starch is proposed to be used as thickening agent in tomato sauce producing tomato sauce without syneresis during a week of storage, viscosity 4.85 Poise, total soluble solid 44.8 obrix, L* 50.75, a* 50.75, b* 51.30 and overal acceptance “rather like” to “like”.
Supernanny: An Intraspeaker Study of Addressee Effects in the Speech of Jo Frost
Authors: Blackwood Chloe
Published: March 2019

Limited research exists evaluating the extent to which intraspeaker style-shifting is conditioned by addressee age and addressee nationality. The current study investigated Supernanny Jo Frost’s realisations of (t) as glottal or non-glottal towards British and American adults and children. Frost was found to style-shift to child-directed speech (CDS) when addressing children, which is interpreted in terms of communication accommodation theory as a communicative strategy to enhance clarity. Frost generally avoided convergence towards her American (and British) interlocutors, such that her style-shifting was found to be conditioned less by addressee nationality than by addressee age. I argue that this avoidance of convergence was motivated by her desire to construct an authentic, authoritative identity, which she achieved through her exploitation of particular indexical meanings associated with [t] and [ʔ].
Investigating Lexical Variation in British Sign Language in Leeds
Authors: Blount Lily
Published: March 2019

This research investigates lexical variation in British Sign Language (BSL) in Leeds, and the extent to which variation in signs for the numbers one to twenty correlate to signer age. Previous studies have compared regional varieties of BSL in eight different UK cities examining the number signs one to twenty, but none so far have explored the deaf community in Leeds. The work presented here is therefore the first to address this area. Overall, age is concluded to be a strong predictor of variation. Younger signers were found to use significantly fewer traditional signs that are regionally distinct to BSL in Leeds than the older generation of signers. This may be seen as evidence of dialect levelling. This research suggests that lexical change in BSL is taking place and also presents the first documentation of Leeds specific variants, some of which have not been documented in the current BSL literature.
Beirut under Russian rule Part 1. The eve of the occupation (1772-1773)
Authors: Kobishchanov Taras Y
Published: March 2019

During the Russian-Ottoman war of 1768-1774 Russia became the fi rst European country that invaded Middle East in the Modern times and even for the short period occupied its part: the town of Beirut. The events that preceded the assault and capture of the town were fi xed by the local chroniclers and Russian offi cers; as well they were refl ected in the messages of Arab rulers and the reports of the diplomats residing in Syria. As a result the volumetric picture of the society is emerging that for the first time faced the colonial expansion of the modernized Europe. The fi rst part of presented article is devoted to the analysis of the socio-political situation in the region on the eve of the arrival of the Russian squadron at the Syrian coast. Special attention is paid to the situation in Beirut before and during the fi rst assault of the town in June 1772, and to the subsequent change in the balance of power in Lebanon.
Models of Egypt’s self-identifi cation in the interwar period (1919-1939)
Authors: Ibragimov Ibragim Eminovich , Kudelin Andrey Aleksandrovich
Published: March 2019

In the article, the authors consider the models of self-identification typical for the public thought of Egypt of the interwar period. In the fi rst half of XX century Egypt entered an important period of its history. As one of the fi rst formally independent Arab States, Egypt continued to struggle for full sovereignty from the United Kingdom while seeking to establish itself as a regional leader. In this regard, the leading thinkers of Egypt tried to determine the place of their country in the world and fi nd the most acceptable ideology for it, which could also rally other Arab, Muslim, Asian and African countries around Egypt. The article touched upon four concepts that were developed during the interwar period and infl uenced the further development of public thought in Egypt. Some thinkers have tried to develop a model of secular pan-Arabism based on the ideas of al-Kawakibi and al-Husri. For these authors, Egypt was an integral part of the Arab world and the core of its possible unifi cation. The second concept was related to pan-Islamism: developing the ideas of al-Afghani, the ideologues of this direction interpreted Egypt primarily as a Muslim country and part of the Dar al-Islam . For example, “Muslim Brotherhood” belonged to this group. The third concept is associated with the comprehension of the identity of Egypt through the idea of “pharaonism” and “ tamsir ” modern Egyptians declared heirs of the ancient Egyptian civilization. The fourth concept, conventionally named Eastern Idea or Easternism , was founded on the opposition of all the countries of the East to Western countries. Each of the areas of identity of Egypt - pan-Arab, pan-Islamic, Egyptian (“pharaonism”) and Easternism - made a contribution to the development of the identity of Egyptian society in the interwar period, and somehow infl uenced on the history of Egypt in the second half of the XX century.
Characteristics of Chinese economy in 2000-2016: economic growth sustainability
Authors: Moiseeva Elizaveta Nikolaevna
Published: March 2019

The aim of the research is to determine through the historical perspective the reasons of China’s economic slowdown in 2000-2016 and using historical data to fi nd out whether it is possible to return to the high rates of economic growth or at least to sustain the current GDP growth rates in between 6-7%. The hypothesis is that China is unable to return to the doubledigit economic growth rates or even to sustain the current GDP growth rates in the long or shortterm. The hypothesis will be proved through mixed methodology with the implementation of descriptive and historical research designs, which involve collection, verifi cation, and synthesis of evidence from the period since 2000-s and up to the present moment.
Da rachadura no espelho aos processos de subjetivação do sujeito-mulher em (des)constituição em páginas feministas brasileiras na web (From the cracking in the mirror to the subjectivation procedures of the subject-woman in deconstitution on brazilian)
Authors: Silva Mariana Morales da , Rosa Mariana Guidetti
Published: March 2019

Com o objetivo de compreender como se dá a subjetivação do sujeito "mulher" e como o discurso feminista se manifesta na web, propõe-se demonstrar uma análise de uma postagem da página do Facebook "Empodere Duas Mulheres", que se diz feminista, e também dos comentários da mesma postagem. A pesquisa está ancorada na Análise do Discurso de orientação francesa de Michel Pêcheux, nas teorias sobre hipergênero e cenografia propostas por Dominique Maingueneau, e também nos conceitos de poder e modos de subjetivação de Michel Foucault.PALAVRAS-CHAVE: Discurso. Hipergênero. Feminismo. Cenografia.
O professor como agente de letramento em contexto de aprendizagem ativa na educação superior em engenharia (The teacher as a literacy agent in a context of active learning in higher education in engineering)
Authors: Schlichting Thais De Souza
Published: March 2019

Neste artigo, discute-se o papel do professor enquanto agente de letramento em contexto de aprendizagem ativa na engenharia. Analisa-se entrevistas realizadas com professores do Mestrado Integrado em Engenharia e Gestão Industrial (MIEGI) da Universidade do Minho, Portugal, que, por meio de projetos curriculares, insere os estudantes em empresas para um estágio. Os resultados das analises indicaram que os docentes entrevistados não se consideram agentes de letramento, embora trabalhem processualmente a escrita dos estudantes. PALAVRAS-CHAVE: Aprendizagem ativa. Letramento acadêmico. Letramento profissional. Engenharia.
EFEKTIVITAS PENERAPAN METODE CONTEXTUAL TEACHING AND LEARNING TERHADAP PENINGKATAN HASIL BELAJAR SISWA DALAM MATA PELAJARAN ILMU PENGETAHUAN ALAM (IPA) KHUSUS DALAM MATERI SIFAT-SIFAT CAHAYA
Authors: Rusniati Ni Wayan
Published: March 2019

The process and student learning outcomes in science learning material properties of light is a problem faced by class IV SD Negeri 3 Mengwi. Student activity and learning outcomes have not been maximized because the teacher delivered science learning materials using the lecture method. This is the background of the researchers to conduct research with the aim of improving the process and learning outcomes of science with material properties of light with learning models Contextual Teaching and Learning. This research is a type of classroom action research conducted in SD Negeri 3 Mengwi. The subjects of this study were fourth grade students, amounting to 27 students consisting of 14 female students and 13 male students. The implementation of this study used 2 cycles. Instruments used to collect data are observation sheets, interviews, documentation and test questions. The results of this study indicate that science learning outcomes with material properties of light using the Contextual Teaching and Learning model in SD Negeri 3 Mengwi have increased in two cycles with quite satisfactory values. There was an increase in learning outcomes from cycle 1 an average value of 68.51 to 75.37 in cycle 2. In addition, there was an increase in the learning process of students in science learning carried out by teachers using the Contextual Teaching and Learning model.

Keywords: Learning process, learning outcomes, Contextual Teaching and Learning
PENERAPAN MODEL PEMBELAJARAN DISCOVERY LEARNING UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS DAN HASIL BELAJAR KIMIA
Authors: Nugrahaeni Amallia , Redhana I Wayan , Kartawan I Made Arya
Published: March 2019

Penelitian ini bertujuan untuk meningkatkan kemampuan berpikir kritis dan hasil belajar kimia melalui model pembelajaran Discovery Learning pada materi laju reaksi. Penelitian ini dilakukan di SMA Negeri 2 Singaraja di kelas XI MIA 2 semester gasal tahun ajaran 2016∕2017 subjek berjumlah 29 siswa. Jenis penelitian ini adalah penelitian tindakan kelas yang terdiri dari perencanaan, pelaksanaan tindakan, observasi dan refleksi dengan menggunakan model pembelajaran Discovery Learning. Tes digunakan untuk mengukur hasil belajar kemampuan awal siswa dan hasil belajar, dan lembar observasi digunakan untuk mengukur keterampilan berpikir kritis siswa.Pembelajaran dengan menggunakan model Discovery Learning terbukti efektif dalam meningkatkan hasil belajar siswa dan keterampilan berpikir kritis siswa. Keberhasilan penerapan dalam meningkatkan hasil belajar siswa ditunjukan dengan adanya perubahan dalam proses siklus I kenaikan nilai rata-rata kelas setelah adanya tindakan dari semula pretest sebesar 85,70 % naik menjadi 89,70% pada saat postest. Peningkatan jumlah peserta didik yang mencapai nilai KKM sebesar 17,24%. Pada siklus II keberhasilan ditunjukan dengan kenaikan nilai rata-rata kelas setelah adanya tindakan dari semula pretest sebesar 62,1% naik menjadi 79,3% pada saat postest. Peningkatan jumlah peserta didik yang mencapai nilai KKM sebesar 6,8%. Nilai yang dicapai masih dikategorikan dalam kriteria Sangat Baik.Berdasarkan analisis keterampilan berpikir kritis siswa, keberhasilan penerapan dalam meningkatkan keterampilan berpikir kritis siswa ditunjukan oleh persentase berpikir kritis siswa yang berada pada kriteria kritis dari 80,57% pada pertemuan kedua siklus I meningkat pada kriteria sangat kritis menjadi pada kriteria 88,5% pada pertemuan kedua siklus II. Kesimpulan penelitian ini adalah penerapan pembelajaran dengan menggunakan model Discovery Learning terbukti efektif dalam meningkatkan hasil belajar siswa dan keterampilan berpikir kritis siswa SMA Negeri 2 Singaraja di kelas XI MIA 2 semester gasal tahun ajaran 2016∕2017.
Membangun strategi memenangkan pasar persaingan pada toko pakaian di kota Tegal
Authors: Sujarwo Makmur , Soebroto Setyowati
Published: March 2019

Abstract : This research is aimed to find out how far the improvement of store operation excellence, the increase of store communication effectiveness (visual merchandising), area trading optimization, focused marketing activity and community involvement have been built in clothing stores in Tegal city so that the retailers can win market competition.This study used a sample of 100 clothing stores in the city of Tegal as respondents. Respondents' answers to the closed questions about the variables studied in this study were then analyzed by using Multiple Regression Test while the answer to the open question was analyzed qualitatively.The results of this study indicate that increased communication effectiveness in the shop, focused marketing activities and community involvement significantly influence the strategy to win the clothing store retail market in the city of Tegal. For that it should be clothing store retailers can further improve these three variables to win more competitive market.Of the five variables above, the community involvement variable has the greatest effect for retailers to win the competition market with a score of 0.251. So a retailer to be more active in social activities by providing compensation to the poor and orphans. Keywords: Market winning strategy, excellence store operations, visual merchandising, area trading optimization, focused marketing activities and community involvement.