bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Novel Wideband Transition from Substrate Integrated Waveguide to Rectangular Waveguide
Authors: Mahant Keyur , Mewada Hiren , Patel Amit , Vala Alpesh , Chaudhari Jitendra 
Published: March 2020

Aim:
In this article, wideband Substrate Integrated Waveguide (SIW) and rectangular
waveguide (RWG) transition operating in Ka-band is proposed.

Objective:
To design wideband Substrate Integrated Waveguide (SIW) and rectangular waveguide
(RWG) transition operating in Ka-band.

Method:
The coupling patch was etched on the SIW cavity to couple the electromagnetic energy
from SIW to RWG. Moreover, metasurface was introduced into the radiating patch to enhance
bandwidth. To verify the functionality of the proposed structure back to back transition was designed
and fabricated on a single layer substrate using standard Printed Circuit Board (PCB) fabrication
technology.

Results:
Measured results match with the simulation results, measured insertion loss was less than
1.2 dB and return loss was better than 3 dB for the frequency range of 28.8 to 36.3 GHz. By fabricating
transition with 35 SRRs, bandwidth of the proposed transition can be improved.

Conclusion:
The proposed transition has advantages like compact size, easy to fabricate, low cost
and wide bandwidth. The proposed structure is a good candidate for millimeter-wave circuits and
systems.
Исследование напряжeнности внутренних электрических полей в активной области светодиодных структур на основе InGaN/GaN с разным числом квантовых ям методом спектроскопии электропропускания
Authors: Асланян А.Э. , Авакянц Л.П. , Червяков А.В. , Туркин А.Н. , Мирзаи С.С. , Курешов В.А. , Сабитов Д.Р. , Мармалюк А.А. 
Published: March 2020

Abstract The internal electric fields of InGaN/GaN-based green-emission LED heterostructures with various numbers of quantum wells in the active region are investigated by electrotransmission spectroscopy. The frequencies of the observed spectral lines are attributed to possible types of interband transitions. An increase in the number of interband transitions of the “quantum well—quantum barrier” type with an increase in the number of quantum wells is found. This is explained by the nonidentical degree of segregation of In atoms in different GaN barriers layers. The strength of internal electric fields in quantum wells is calculated for various values of the bias of the p – n junction using a series of electrotransmission spectra. It is found that the strength of the internal piezoelectric field decreases from 3.20 to 2.82 MV/cm with an increase in the number of quantum wells.
Спектр излучения и стабильность двух типов электронно-дырочной жидкости в мелких Si/Si-=SUB=-1-x-=/SUB=-Ge-=SUB=-x-=/SUB=-Si квантовых ямах
Authors: Васильченко А.А. , Кривобок В.С. , Николаев С.Н. , Багаев В.С. , Онищенко Е.Е. , Копытов Г.Ф. 
Published: March 2020

Abstract Based on calculations within the density functional theory and an analysis of low-temperature photoluminescence spectra, the structure of electron–hole liquid in shallow Si/Si_1 – _ x Ge_ x Si (100) quantum wells 5 nm wide with germanium content x = 3–5.5% is studied. It is shown that the energy of quasi-two-dimensional electron–hole liquid localized in quantum wells for this composition range as a function of carrier concentration exhibits two local minima. The position of the deeper (major) minimum depends on the quantum well design and controls properties of quasi-two-dimensional electron–hole liquid at low temperatures. For the series of Si/Si_1 – _ x Ge_ x Si quantum wells, modification of properties of electron–hole liquid was experimentally shown, which can be interpreted as a change of the major minimum due to an increases in the germanium concentration in the Si_1 – _ x Ge_ x layer. The effect of the multicomponent composition (electrons, light and heavy holes) of the electron–hole liquid on low-temperature photoluminescence spectra of Si/Si_1 ‒ _ x Ge_ x Si quantum wells is discussed.
"Shitty Automation": Art, Artificial Intelligence, Humans in the Loop
Authors: Paulsen Kris 
Published: March 2020

This essay adapts the concept of “shitty automation,” developed by Brian Merchant to name frustrating experiences with automated systems, to describe how human input—our labor, bodies, biases, prejudices, and desires—remains invisibly present in automated systems. Tracing a lineage of automation from Jacques de Vaucanson’s Canard Digérateur (1739) and Wolfgang von Kempelen’s mechanical Turk (1770) to contemporary artist Trevor Paglen, who uses Generative Adversarial Networks (GANs) to create artworks, this essay considers how humans “stay in the loop” in automation and what “shitty automation” reveals about human culture, our desires, and the evolution of AI.
Dietary Intake Nutritional Status and Lifestyle of Adolescent Vegetarian and Nonvegetarian Girls in New Zealand (The SuNDiAL Project): Protocol for a Clustered, Cross-Sectional Survey
Authors: Peddie Meredith , Ranasinghe Chaya , Scott Tessa , Heath Anne-Louise , Horwath Caroline , Gibson Rosalind , Brown Rachel , Houghton Lisa , Haszard Jillian 
Published: March 2020

Background
Anecdotally, vegetarian eating patterns seem to be increasing in parallel with growing concerns about environmental sustainability. While this pattern of eating is widely believed to be associated with benefits for the planet and individual health, it may increase the risk of inadequate intakes and nutrient deficiency if not planned carefully. Adolescent girls may be particularly at risk, as they have increased requirements for nutrients such as iron, zinc, calcium, and vitamin B12 during growth and development.

Objective
The objective of the SuNDiAL Project (Survey of Nutrition, Dietary Assessment, and Lifestyles) is to compare the dietary intakes and habits, nutrition status, motivations, attitudes, and physical activity of a sample of vegetarian and nonvegetarian adolescent girls in New Zealand.

Methods
A clustered, cross-sectional, nationwide study of adolescents aged 15-18 years was conducted. Secondary schools were recruited throughout New Zealand, and pupils (n=290) were invited to participate in data collection in either the first (February to April) or third (August to October) school term of 2019 (New Zealand schools operate on a 4-term year). Sociodemographic and health information; vegetarian status; dietary habits; and attitudes, motivations, and beliefs regarding food choices were assessed via an online self-administered questionnaire. Dietary intakes were collected via two 24-hour diet recalls on nonconsecutive days and will be adjusted for within-person variation using the Multiple Source Method, to represent usual intakes. Nutrient adequacy will be assessed by the estimated average requirement cut-point method or probability approach as appropriate. Height and weight were measured, and blood and urine samples collected for micronutrient status assessment. Participants wore an accelerometer for 7 days to assess 24-hour activity patterns (time spent asleep, sedentary, or engagement in light-intensity or moderate-to-vigorous intensity physical activity).

Results
Recruitment and data collection were conducted in 2019. Data are currently being cleaned and analyzed, with publication of the main results anticipated at the end of 2020.

Conclusions
The SuNDiAL Project will provide a meaningful and timely description of diet, nutrition status, and motivational factors associated with vegetarianism and identify any risks this pattern of eating may pose for female adolescents. The results of this study will support the development of targeted recommendations and interventions aimed at enhancing the health, growth, and development of adolescent girls.

Trial Registration
Australian New Zealand Clinical Trials Registry ACTRN12619000290190; https://tinyurl.com/yaumh278

International Registered Report Identifier (IRRID)
DERR1-10.2196/17310
CURCUMIN AND ITS EFFECT ON PREECLAMPSIA: AS ANTI-INFLAMMATORY, ANALGESIC, AND ANTICOAGULANT
Authors: FADINIE WULAN , LELO AZNAN , WIJAYA DADIK WAHYU , LUMBANRAJA SARMA NURSANI 
Published: March 2020

Objective: Based on the Indonesia Health Profile In 2014, almost 30% of maternal deaths at Indonesia in 2010 were caused by hypertension in pregnancy, which one of them was preeclampsia. Many theories said to be the risk factor, such as acute body inflammation. Its clinical symptoms are hypertension, upper abdominal pain, and haemorrhage. Nowadays, many studies have been developed to predict the onset of preeclampsia, one of which is COX-2. This study was the first one to examine the benefits of curcumin in preeclamptic patients around the world.
This study aims to discover whether curcumin affects the level of COX-2, VAS, and anticoagulant factors in preeclamptic patients.
Methods: This is true experimental research with a double-blind randomized design. 50 samples were collected within a period of 7 mo and were divided into 2 groups: Case and Control Group. A total of 3 blood tests were conducted: prior, 90 min, and 12 h after case/treatment.
Results: 4 samples were eliminated during preparation. The total number of samples was 46; 23 in Control Group and 23 in Case Group. In this study, we found clinical changes in the level of COX-2, VAS and anticoagulant factors in patients given 100 mg of curcumin compared to those who were not. In addition, we also found a correlation between clotting time and bleeding time at T2 where both time factors became shorter.
Conclusion: There was a statistically significant decrease in COX-2 level in the Case Group, which led to decreased value of VAS, shorter clotting time and lower thrombocyte count; and, there was a significant correlation found between clotting time and bleeding time at T2 in the preeclamptic patients.
TO ESTIMATE THE INCIDENCE OF POTENTIAL DRUG-DRUG INTERACTION IN STROKE PATIENTS ADMITTED IN A TERTIARY CARE HOSPITAL, TELANGANA
Authors: FIRDOUS SIDRAH , AWAD SAFA AMREEN SALIM , FATIMA AFIFA , AHMED MOHAMMAD FARHAN , ANITHA N. , ALI NILOUFER 
Published: March 2020

Objective: To determine the frequency and pattern of potential drug-drug interactions in hospitalized stroke patients.
Methods: A retrospective study was carried out among patients treated for ischemic and haemorrhagic stroke at a tertiary care hospital, Hyderabad for a period of 1 y. A total of 177 prescriptions were analyzed during the study period. The potential drug-drug interactions were identified using Clinirex software.
Results: Among the 177 prescriptions, 63.8% were male and 36.2% were female. Out of 177, 79 % of prescriptions had shown potential drug-drug interactions. The patients prescribed with more than 5 drugs developed higher incidence of drug-drug interactions. Based on severity scale we observed 12% major, 71% moderate and 17% minor drug-drug interactions. The incidence of pharmacodynamic interactions was 68% and the pharmacokinetic interactions were 32%.
Conclusion: This study suggests that patients with stroke are frequently exposed to potential drug-drug interactions. The incidence of potential drug-drug interactions was higher in patients above 40 y. Most of the prescriptions contained polypharmacy which may lead to increased risk of hospitalization and higher health care cost. It is essential to identify potential drug-drug interactions especially in elderly patients as early as possible in order to prevent adverse drug reactions and ensure patient’s safety.
PHYTOCHEMICAL EVALUATION OF ARTOCARPUS HIRSUTUS LAM. FRUIT EXTRACT: A POTENTIAL WILD ENDEMIC PLANT
Authors: P. NEHA C. , K. ABDUSSALAM A. 
Published: March 2020

Objective: The present study includes the qualitative and quantitative estimation of phytochemical constituents and HPTLC (High-performance thin layer chromatography) analysis of phenolic acids in the fruit extract of Artocarpus hirsutus.
Methods: Qualitative and quantitative analysis of Artocarpus hirsutus methanol fruit extract using standard methods. HPTLC analysis was performed by the CAMAG HPTLC system (Switzerland) for gallic acid, caffeic acid and ferulic acid determination.
Results: The Preliminary phytochemical analysis revealed the presence of phytoconstituents such as flavonoids, phenols, tannins, steroids, glycosides, alkaloids, carbohydrate and protein. The methanol fruit extract has high carbohydrate content (267±0.02 mg/g FW). And good amount of protein, phenol, flavanoid were also found. The results of mineral studies shows that elements such as potassium (1.601%) and nitrogen (1.4%) were present in higher quantity. The result showed the presence of caffeic acid within peak 7 with an Rf (Retension factor) value 0.49, ferulic acid within peak 8 with an Rf value 0.60, and gallic acid within peak 5 with an Rf value 0.25.
Conclusion: The results indicated that the Artocarpus hirsutus fruit contains an appreciable amount of bioactive compounds.
ANALYSING THE BIOCATALYTIC ASPECT OF AMYLASE FROM PLANT AND MICROBIAL SOURCES FOR INDUSTRIAL APPLICATION
Authors: NIHARIKA DIGUMARTHY , JAIPURIAR DIPTI SONI , VAISHNAV VIRENDRA 
Published: March 2020

Objective: Biocatalysts have a wide role in industries and amylases are one of the best enzymes used in various industries as they stay stable physically and chemically even under environmental or physical stress. Extraction of amylase from plant sources like chickpea and green pea and also the microbial source of Bacillus subtilis.
Methods: Enzymatic activity was determined by enzyme assay and purified through the following steps such as salt precipitation, dialysis, Ion-exchange chromatography and characterized using SDS PAGE.
Results: Enzymatic activity of amylase produced by bacillus subtilis was determined the highest (4600 U/ml) activity and molecular weight 48.9kDa was recorded.
Conclusion: Amylase is a highly important enzyme that breaks down the starch molecules into simple sugars. It has potential in a wide range of industrial processes such as food, fermentation and pharmaceutical industries. All the sources used in this study proves that the bacteria have the highest concentration of enzyme in the form of protein.
COMBINED EFFECT OF SELECTIVE BIOACTIVE COMPOUNDS FROM PLANT ORIGIN IN AN ANIMAL MODEL OF ANXIETY
Authors: B. SATHYA , K. BALAMURUGAN , S. ANBAZHAGAN 
Published: March 2020

Objective: Evidence is emerging that specific combinations of bioactive compounds may be far more effective in protecting against several diseases as compared to the effect of a single compound. The present study was aimed to investigate the interactive effect of Diosgenin and Silymarin, the bioactive compounds from plant origin in an animal model of anxiety.
Methods: Albino wistar rats of either sex were divided into five groups and treated for 5 d. Group I and II served as control and standard and test groups were treated with Diosgenin (100 mg/kg, p. o.), Silymarin (100 mg/kg, p. o.) and combination of Diosgenin (50 mg/kg, p. o.)+Silymarin (50 mg/kg, p. o.), respectively. Diazepam (1 mg/kg, i. p.) was used as a standard for the study. Anxiolytic effects were studied in the Elevated plus-maze, Hole-board test and Light/Dark model.
Results: The results suggested that Diosgenin when given alone at a dose of 100 mg/kg, does not shown significant anxiolytic effect when as compared with control. Whereas, the compound Silymarin (100 mg/kg) shown significant anti-anxiety effect (P<0.01), independently. The same two bioactive compounds, given in combination at a dose of 50 mg/kg, (each), exhibited significant anxiolytic-like effect, potentially.
Conclusion: It can be concluded that Diosgenin has got a synergistic effect on anti-anxiety action when given in combination with Silymarin.
DEVELOPMENT AND VALIDATION OF UV-SPECTROPHOTOMETRIC METHOD FOR DETERMINATION OF CLENBUTEROL HYDROCHLORIDE IN BULK AND PHARMACEUTICAL FORMULATION
Authors: KANKURE SUSHMITA , KALSHETTI MALLINATH , PATIL RAVIKANT 
Published: March 2020

Objective: The objective of the present work is to develop a simple, rapid, economic UV spectrophotometric method for quantification of clenbuterol hydrochloride in bulk and pharmaceutical formulation as per ICH guidelines.
Methods: A UV spectrophotometric method has been developed using water as solvent to determine the Clenbuterol hydrochloride in bulk and pharmaceutical dosage formulation. The λmax of Clenbuterol hydrochloride in water was found to be 242 nm.
Results: The drug was proved linear in the range of 10-50μg/ml and exhibited good correlation coefficient (R2 = 0.9987) and excellent mean recovery (98-100%). The %RSD for intra-day and inter-day precision was found to be 0.053997676 and 0.359081556 respectively. The LOD and LOQ of clenbuterol hydrochloride was found to be 3.704448 and 11.2256 respectively. This method was successfully applied to clenbuterol content in marketed brands and the results were in good agreement with the label claims.
Conclusion: The method was validated for linearity, precision, repeatability and reproducibility. The obtained results proved that the method can be employed for the routine analysis of clenbuterol in bulks as well as in commercial formulations.
ANTIBACTERIAL ACTIVITY OF GOLDEN BERRY (PHYSALIS PERUVIANA) EXTRACT AGAINST ESCHERICHIA COLISPP. ISOLATES FROM MEATS IN ECUADOR
Authors: BAYAS-MOREJON FAVIAN , TIGRE-LEON ANGELICA , TAPIA-VERDEZOTO MARCELO , FLORES-RIBADENEIRA FABIAN 
Published: March 2020

Objective: The resistance of pathogenic bacteria to multiple antimicrobials has become a real global threat in terms of food safety and public health. To Study of antibacterial activity of golden berry extracts against E. coli isolated from meats in Ecuador.
Methods: Two solvents (water and ethyl alcohol) were used as well as three parts of the Goldenberry (mature berries, semi-mature berries and leaves) for its transformation into extracts. The extracts obtained were used in tests of anti-E. coli activity, contrasting with Ampicillin and gentamicin by means of the disk difusión method.
Results: Extracts in ethyl alcohol from semi-ripe berries and leaves were more effective at inhibiting the development of E. coli, with A2B1 and A2B3 treatments being those with the best antibacterial effect with 35.3% and 50% respectively. These results were close to those obtained with the antibiotics under study.
Conclusion: The use of uvilla extracts could be a viable natural alternative to act against pathogens.
PHYLOGENETIC ANALYSIS OF FUSARIUM OXYSPORUMF STRAINS ISOLATED FROM STRAWBERRY CROPSFRAGARIA ANANASSADUCH IN THE PROVINCE OF PICHINCHA (ECUADOR)
Authors: L. ANGELICA TIGRE , ERAZO FREDY , YANEZ DANILO , BAYAS-MOREJON FAVIAN 
Published: March 2020

Objective: Strawberry cultivation has acquired great importance for consumption, promoting the increase of its production in Ecuador. However, the process of importing plant material from producing countries in order to improve domestic production has contributed to the dissemination of the fungus Fusarium oxysporum f. sp. fragariae.
To identify the presence of the pathogen, by applying molecular techniques to the Fusarium strains isolated from strawberry crops.
Methods: Nine two diseased strawberry plants and 92 asymptomatic plants were analyzed. From these samples, 13 fungi with the characteristics of the Fusarium genus were identified. The isolates were analyzed at the molecular level, by PCR (Polymerase chain reaction) amplifying the ITS regions of the rDNA and the EF-1α region.
Results: The PCR product was sequenced to elucidate the phylogenetic relationships between the isolates, identifying 12 strains as F. oxysporum f. sp. fragariae. These results confirmed the presence of the fungus in the strawberry crops analyzed, representing a contribution to the search for control alternatives to avoid the spread of the pathogen.
Conclusion: The PCR product was sequenced to elucidate the phylogenetic relationships between the isolates, identifying 12 strains as F. oxysporum f. sp. fragariae.
PEMBUATAN DAN PENGUJIAN FISIK ROSTER BETON DI KOTA KENDARI
Authors: Umar Muhammad Zakaria 
Published: March 2020

Di kota Kendari tumbuh dan berkembang subur para pengrajin roster beton. Masing-masing resep roster didapatkan oleh para pengrajin dengan metode uji dan coba. Para pengrajin roster sulit berbagi ilmu dengan masyarakat, sehingga pembuatan roster sulit dipelajari. Penelitian ini ditujukan, sebagai berikut: (a) untuk mengidentifikasi dan mengkaji peralatan kerja, bahan-bahan kerja dan cara pembuatan roster beton manual yang dibuat oleh pengrajin lokal di kota Kendari; (b) untuk menguji kuat tekan dan daya serap air roster beton yang telah dibuat oleh pengrajin lokal. Penelitian ini penting dilakukan agar pengetahuan pengrajin roster beton lokal bisa disinergikan dengan pengetahuan akademisi, sehingga tercipta produk roster yang efektif, efisien dan tepat. Penelitian ini menggunakan metode studi kasus dengan pendekatan kualitatif dan kuantitatif. Data didapatkan dengan cara observasi dan survei pada salah satu pengrajin lokal di kota Kendari. Penelitian ini disimpulkan, sebagai berikut: (a) alat-alat kerja yang digunakan sederhana; (b) bahan-bahan kerja yang digunakan cukup tersedia dan ekonomis; (c) tahap-tahap pembuatan mudah dan cepat, serta; (d) hasil uji didapatkan bahwa roster beton mempunyai daya serap air tinggi dan kuat tekan rendah.Kata Kunci : roster beton, tahap-tahap pembuatan, pengujian fisik
TINGKAT KENYAMANAN TAMAN HONDA TEBET SEBAGAI RUANG INTERAKSI SOSIAL
Authors: Jamila Rona Fika 
Published: March 2020

Taman kota kini makin dilirik warga kota sebagai sebagai salah satu ruang public untuk untuk berkumpul dan melakukan interaksi-interaksi social. Salah satu taman kota yang ramai dikunjungi oleh warga kota Jakarta dari segala usia adalah Taman Honda Tebet. Di taman ini terdapat berbagai kegiatan public seperti senam, tae kwon do, jogging, kegiatan promosi, temu komunitas, dan lain-lain. Oleh karena itu penelitian ini ingin menguji bagamanakah kenyamanan Taman Honda Tebet sebagai ruang interaksi masyarakat perkotaan. Metode yang digunakan adalah kuantitatif deskriptif dan metode pengumpulan datanya menggunakan observasi dan kuosioner. Tujuan penelitian ini adalah untuk mengetahui seberapa nyaman Taman Honda Tebet sebagai ruang interaksi social masyarakat perkotaan.Kata Kunci : Taman Honda Tebet, Taman Kota, Interaksi Sosial