bluuebunny/crossref_metadata_2025 huggingface dataset:
Модификация стандартной производственной линии Al-BSF фотоэлектрических преобразователей до PERC с использованием PECVD
Authors: Клиновицкая И.А. , Плотников С.В. , Lay P.M.L.
Published: February 2022

This study is devoted to comprehensive study of the physical and electrical properties of solar cells manufactured on the basis of the Kazakhstan multicrystalline silicon of solar grade (SoG-Si). The study applied: 4-point resistance measurement method, a method of microwave detected photoconductive decay (μ-PCD), a method of Light Beam Induced Current (LBIC), methods for spectrometric analysis of reflection, transmission and photoluminescence coefficients, scanning electron microscopy, and methods for analyzing current-voltage characteristics. The batches of Al-BSF and PERC photovoltaic converters based on Kazakhstani silicon were manufactured and analyzed. To improve efficiency, the study proposes a modification of a standard Al-BSF production line to a PERC line using PECVD.
Синтез CVD-алмаза детекторного качества для радиационно-стойких детекторов ионизирующего излучения
Authors: Красильников А.В. , Родионов Н.Б. , Большаков А.П. , Ральченко В.Г. , Вартапетов С.К. , Сизов Ю.Е. , Мещанинов С.А. , Трапезников А.Г. , Родионова В.П. , Амосов В.Н. , Хмельницкий Р.А. , Кириченко А.Н.
Published: February 2022

An advanced microwave plasma reactor ARDIS 300 was used to synthesize homoepitaxial structures of monocrystal diamond films at Project Center ITER. High-quality epitaxial diamond films were grown on boron-doped monocrystal diamond substrates using microwave plasma-assisted chemical vapor deposition from methane-hydrogen mixture. Structural and impurity perfection of diamond films were characterized by Raman spectroscopy, photoluminescence, and optical absorption. Prototypes of radiation detectors were created on the basis of grown diamond films with thickness 70-80 μm. The p-type substrate with boron concentration ~100 ppm served as an electrical contact. Detectors were irradiated by 5.5 MeV α-particles and 14.7 MeV neutrons, corresponding pulse height spectra were measured and detector sensitivities were determined. Charge collection efficiency for synthesized diamond was shown to achieve 94% and 91% when ~4 V/m electric field applied.
Поправка к статье О распределении по размерам дисперсных частиц фрактальной формы [1]
Authors: Федосеев В.Б. , Шишулин А.В.
Published: February 2022

Внесена поправка к определению средних величин в формуле (4), состоящая в добавлении интегрирования по массе (стехиометрическому числу), опущенного в публикации. Уточнение восстанавливает корректность вычисления средних значений фрактальной размерности и массы (стехиометрического числа) и диаметров дисперсных частиц. Добавлен комментарий о численном интегрировании при вычислении частичной и полной статистической суммы. В работе [1] описано равновесное распределение дисперсных частиц по массе (стехиометрическому числу ν) и форме (фрактальной размерности D), полученное перемножением независимых распределений Гиббса по энергии частиц и функции разбиений f_p(ν,N), включенной в формулу в виде энтропийного вклада f_D(ν,D,N) ~ expgl( -(U(ν,D)+RTln f_p(ν,N))/(RT) gr). Здесь N --- число мономеров (атомов, молекул и т. п.), образующих дисперсную систему, U(ν,D) --- энергия образования частиц в пересчёте на моль вещества, R,T --- универсальная газовая постоянная и температура. Функция распределения позволяет вычислить средние значения фрактальной размерности < D> и стехиометрического числа частиц <ν> в виде < D> = (_iD_i f_D(D_i,ν,N)dν)/(Ω(N)), < ν> = (_i ν f_D(D_i,ν,N)dν)/(Ω(N)). (4) Здесь величина Ω(N)=i f_D(D_i,ν,N)dν (либо Ω(N)= f_d(D,ν,N)dν dD) является статистической суммой. В статье [1] в выражении (4) было пропущено интегрирование по ν, что исказило смысл уравнения. Аналогичные изменения необходимо внести в выражения для средних значений других величин: эффективного линейного размера частиц (длина ребра куба равного объема) < d>=Ω-1d_1_iν1/3 f_D(D_i,ν)dν, среднего диаметра фрактальной частицы < d^*>=Ω-1d_1_iν1/D f_D(D_i,ν)dν, где d1 --- линейный размер атома. *Комментарий по вычислениям интегралов и сумм, использованных при вычисленииe средних значений Численное вычисление интегралов x(D_i,ν)f_D(D_i,ν)dν, когда верхний предел равен или сопоставим с числом Авогадро (6.022·1023), осложняется тем, что вклад крупных частиц с N0.6Aν≤ν≤ NAν практически равен нулю. В стандартной записи эти интегралы дают неверный результат как в Mathcad, так и в Wolfram Mathematica. -1 В случае Wolfram Mathematica проблема решается выбором метода интегрирования (Method -> \"DoubleExponential", "SymbolicProcessing" -> 0\). Mathcad позволяет выбрать метод интегрирования, приемлемым оказался вариант разбиения области интегрирования на интервалы, привязанные к максимуму функции f_D(ν,D,N). Wolfram Mathematica позволяет заменить сумму _i x(D_i,ν)f_D(D_i,ν,N)dν на двойной интеграл x(D,ν)f_D(D,ν,N)dν dD. В этом случае результат дает последовательное интегрирование сначала по ν X(D,N) = x(D,ν)f_D(D,ν,N)dν (1≤ ν≤ N), затем по D X(N)= X(D,N)dD. В общем случае статистическая сумма Ω(N) и средние значения X(N) зависят от массы системы (числа мономеров, образующих дисперсную систему N).
Correlation of Mutational Signatures in Cancer Genes with General Signatures
Authors:   REHS Program, San Diego Supercomputer Center, University of California at San Diego, La Jolla 92093, CA, USA, Park Junhyeong T. , Park Junseong A. ,   REHS Program, San Diego Supercomputer Center, University of California at San Diego, La Jolla 92093, CA, USA,   MAP Program, University of California at San Diego, La Jolla 92093, CA, USA, Tsigelny Igor F. ,   San Diego Supercomputer Center, University of California at San Diego, La Jolla 92093, CA, USA,   Department of Neurosciences, University of California at San Diego, La Jolla 92093, CA, USA,   BiAna, La Jolla 92038, CA, USA, Kouznetsova Valentina L. ,   San Diego Supercomputer Center, University of California at San Diego, La Jolla 92093, CA, USA,   BiAna, La Jolla 92038, CA, USA
Published: February 2022

The occurrence of various mutation patterns, such as changes in the DNA sequence and the loss of some sequences, is called a “mutational signature,” and they represent the molecular fingerprints that exist for the type of mutation occurring in a specific gene. Our study elucidates the correlations of mutational signatures in frequently mutated cancer genes with general mutational signatures previously found for different cancers. We hypothesized that the top twenty most frequently mutated genes (MFMG) of a cancer type would have the highest correlation with the general signatures related to the cancer. The program for our research, SignaGen, was created using MATLAB to take in genomic sequence data and mutation data (consisting of the type, location, and frequency of each mutation) to calculate the mutational signatures of genes. The correlation values for the top twenty MFMG were organized into heatmaps for each cancer type observed. By looking at the heatmaps, we could see that the MFMG did have relatively higher correlation values with the general signatures that were related to the cancer type. However, there were also cases in which the MFMG had lower correlation values with a related signature than other associated signatures. For example, the MFMG of skin cancer had an average correlation of 7.76% with signature 17, while having an average correlation of 43.02% with signature 11. Not only was the average lower than the average correlation with the other related general signatures, but it was also lower than the average correlation with unrelated signatures. To investigate this inconsistency and verify the significance of these correlation values, we compared the correlation values of the MFMG to the correlation values of randomly selected genes of similar length. Even if the MFMG’s correlation with the related signatures is low, our hypothesis would still be supported if they had a higher correlation than the random genes. We took three of the twenty MFMG for each cancer and compared their correlation with the random genes of similar length for each cancer type and found that the MFMG had a higher correlation than the random genes for most cases.
Endovascular Abdominal Aortic Aneurysm Repair With Ovation Alto Stent Graft: Protocol for the ALTAIR (ALTo endogrAft Italian Registry) Study (Preprint)
Authors: de Donato Gianmarco , Pasqui Edoardo , Sirignano Pasqualino , Talarico Francesco , Palasciano Giancarlo , Taurino Maurizio ,   ALTAIR collaborators
Published: February 2022

BACKGROUND

Since 2010, the Ovation Abdominal Stent Graft System has offered an innovative sealing option for abdominal aortic aneurysm (AAA) by including a sealing ring filled with polymer 13 mm from the renal arteries. In August 2020, the redesigned Ovation Alto, with a sealing ring 6 mm closer to the top of the fabric, received CE Mark approval.

OBJECTIVE

This registry study aims to evaluate intraoperative, perioperative, and postoperative results in patients treated by the Alto stent graft (Endologix Inc.) for elective AAA repair in a multicentric consecutive experience.

METHODS

All consecutive eligible patients submitted to endovascular aneurysm repair (EVAR) by Alto Endovascular AAA implantation will be included in this analysis. Patients will be submitted to EVAR procedures based on their own preferences, anatomical features, and operators experience. An estimated number of 300 patients submitted to EVAR with Alto stent graft should be enrolled. It is estimated that the inclusion period will be 24 months. The follow-up period is set to be 5 years. Full data sets and cross-sectional images of contrast-enhanced computed tomography scan performed before EVAR, at the first postoperative month, at 24 or 36 months, and at 5-year follow-up interval will be reported in the central database for a centralized core laboratory review of morphological changes. The primary endpoint of the study is to evaluate the technical and clinical success of EVAR with the Alto stent graft in short- (90-day), mid- (1-year), and long-term (5-year) follow-up periods. The following secondary endpoints will be also addressed: operative time; intraoperative radiation exposure; contrast medium usage; AAA sac shrinkage at 12-month and 5-year follow-up; any potential role of patients’ baseline characteristics, valuated on preoperative computed tomography angiographic study, and of device configuration (number of component) in the primary endpoint.

RESULTS

The study is currently in the recruitment phase and the final patient is expected to be treated by the end of 2023 and then followed up for 5 years. A total of 300 patients will be recruited. Analyses will focus on primary and secondary endpoints. Updated results will be shared at 1- and 3-5-year follow-ups.

CONCLUSIONS

The results from this registry study could validate the safety and effectiveness of the new design of the Ovation Alto Stent Graft. The technical modifications to the endograft could allow for accommodation of a more comprehensive range of anatomies on-label.

CLINICALTRIAL

ClinicalTrials.gov NCT05234892; https://clinicaltrials.gov/ct2/show/NCT05234892

INTERNATIONAL REGISTERED REPORT

PRR1-10.2196/36995
Implementation of Virtual Reality in Health Professional Higher Education: Protocol for a Scoping Review (Preprint)
Authors: Lie Silje Stangeland , Helle Nikolina , Sletteland Nina Vahl , Vikman Miriam Dubland , Bonsaksen Tore
Published: February 2022

BACKGROUND

The use of virtual reality in higher education show great potential to promote novel and innovative learning experiences. Until recently, virtual reality has mostly been used in technical higher education, but lately medical education programs have begun using virtual reality. Virtual reality for health professional education improves the knowledge and skills of health professionals compared with traditional or other digital education initiatives. However, the implementation of technology in higher education is slow because of barriers to technology use and innovative and successful practices are not shared. It is, therefore, of great interest to explore how virtual reality is implemented in higher health professional and continuing education.

OBJECTIVE

The aim of this scoping review is to identify studies that reported implementation of virtual reality in higher health professional education, to identify barriers and facilitators for implementation, and to highlight research gaps in this area.

METHODS

The scoping review will be conducted according to JBI Evidence Synthesis methodologies. CINAHL, the Academic Search Elite and Education Source electronic databases, and Google Scholar will be searched for studies published between 2017 and 2022. In addition, manual searching of key items, reference tracking, and citation tracking will be performed. Searches for white papers will also be manually conducted. All authors will independently extract data from full-text papers. We will use qualitative content analysis to abstract the findings.

RESULTS

The literature searches were conducted in January and February 2022. The review is expected to be completed by fall 2022, after which time it will be submitted for publication.

CONCLUSIONS

We anticipate that, from the review, we will be able to coordinate recommendations for and present the challenges of virtual reality initiatives in health professional education programs. We will present recommendations for future research.

INTERNATIONAL REGISTERED REPORT

DERR1-10.2196/37222
Aboveground Forest Carbon Stock in Protected Area: A Case Study of Bukit Tigapuluh National Park, Indonesia
Authors: Darmawan Arief , Warta Zulfira , Molidena Elis , Valla Alexandra , Firdaus Muhammad Iqbal , Winarno Gunardi Djoko , Winarno Bondan , Rusolono Teddy , Tsuyuki Satoshi
Published: February 2022

The role of protected areas has been expanded into climate change mitigation, specifically on Reducing Emissions from Deforestation and Forest Degradation (REDD+). A reliable and practical method for measuring, reporting and verifying carbon stock is an essential component for REDD+. This study aims to recognize the characteristic and estimate aboveground forest carbon (AGC) stock in the tropical protected tropical area using a combination of terrestrial forest inventory and spatial data. A 168 cluster plots totaling 33.6 hectares were taken proportionally based on the percentage of forest cover types (dryland primary natural forest/DPF and dryland secondary natural forest/DSF) using a traditional forest inventory method (more than 5 cm dbh). Results showed that Bukit Tigapuluh National Park secured a significant AGC stock which has been estimated to be 269.2 [247.07; 291.43] tC/ha or 35,823,639 [32,872,312; 38,774,966] tC in total, being stored in approximately 133,051 hectares of the tropical rain forest. This result was higher than other studies in non-protected areas but slightly lower than other studies within protected areas. This finding supported the argument that protected areas possess a higher figure of AGC stock than other forest management units. The high amount of forest carbon biomass in the protected areas shall be very important assets for conducting the role of conservation for REDD+.
Genetic diversity of Gleicheniaceae from Rokan Hulu, Riau based on ISSR Marker
Authors: Marpaung Afni Atika , Susandarini Ratna
Published: February 2022

Genetic diversity of eleven taxa from two genera (Dicranopteris and Sticherus) of Gleicheniaceae from Rokan Hulu, Riau was analyzed using ISSR markers generated from 10 primers. Nine out of ten ISSR primers produced high level of polymorphism, with six of them showed 100 % polymorphism. The genetic similarity was calculated using Jaccard's similarity coefficient, and cluster analysis using the Unweighted Pair-Group Method with Arithmetic Mean. The result showed that the genetic similarity of eleven taxa of Gleicheniaceae ranged from 0.377 to 0.627 indicated moderate level of genetic diversity and the clusters did not separate Dicranopteris from Sticherus.
Morphological Characterization and Seed Germination Study of Wild Banana Musa acuminata var. flava (Ridl.) Nasution
Authors: Trimanto Trimanto , Renjana Elga , Lestari Dewi Ayu , Firdiana Elok Rifqi , Mas’udah Shofiyatul , Rahadiantoro Apriyono , Ningrum Linda Wige , Hapsari Lia
Published: February 2022

Wild bananas provide important genetic materials for further banana improvement, therefore they need to be conserved and studied. This study aimed to describe morphological characteristics of plant and seed and also to study the seed germination of wild banana M. acuminata var. flava (Ridl.) Nasution. The morphological characteristics were observed descriptively by referring to the descriptor for banana. The internal and external morphology of the seeds were observed using a digital microscope. The germination testing was carried out by a completely randomized design, using fresh seeds extracted from a bunch of fruits with two ripeness levels i.e. fully-ripe (yellow peel) and under-ripe (green-yellow peel). The data resulted was then analyzed using an independent t-test. The results showed that M. acuminata var. flava is characterized as a perennial herb; pseudostem height ≥3 m; male bud like a top with prominent green-yellow bracts; fruit curved and tasted mild-sweet when ripe. The seed is angular with wrinkled surface, and dark brown-black color when ripe. The longitudinal section showed parts of the seeds comprising the seed coat, outer and inner integument, embryo, endosperm, chalazal mass, micropyle cap and channel. The seeds are classified as orthodox, with hypogeal type and gradual germination pattern. The seeds extracted from fully-ripe fruit germinated faster with higher germination percentage and growth variables (root number and plant height). Thus, it is suggested to use physiologically mature seeds (seeds from fully-ripe fruits) which should be separated from the seeds of under-ripe fruits to lower the heterogeneity.
Morphological and Anatomical Variations among Alocasia alba Schott Accessions in Bali Botanic Garden
Authors: Asih Ni Putu Sri , Hendriyani Ema , Tihurua Eka Fatmawati
Published: February 2022

Alocasia alba Schott is a member of Macrorrhizos group from Aroid family that has conserved in Bali Botanic Garden. On its development, the collections showed varied morphological diversity on leaves and flowers. The aim of this study is to fill the knowledge gap in morphology and anatomy of the species A. alba and to know the phenotypic variation in this species. A total of eight A. alba accessions from Java, Bali and West Nusa Tenggara were observed in morphological and anatomical characters. The result showed that the eight accessions of A. alba have some variations in morphological and anatomical characters. These variations might be caused by genetic factors that resulted from plant adaptation to the different environments.
Diversity, Abundance, and Traditional Uses of Asteraceae Species in Mount Bisma, Dieng Plateau, Kejajar, Wonosobo, Central Java
Authors: Kurniawan Bima , Purnomo Purnomo , Kasiamdari Rina Sri
Published: February 2022

Asteraceae is the largest and most diverse family of flowering plants which contains more than 20,000 species distributed in nearly all types of habitats all over the world. In mountainous regions such as Mount Bisma, it is estimated to have plenty and diverse member of the Asteraceae family, and used in the local community for various uses. This research aimed to understand the diversity, abundance, and uses of Asteraceae members that are found wild in Mount Bisma. Taxonomy and ecological data were gathered using an exploration method and purposive sampling method, from the point, a plot measured 3x3 m2 was created to estimate the vegetation parameters in the mountain top and mountain valley area. Ethnobotanical data were gathered in Sikunang Village, a nearby village of Mount Bisma using a semi-structured interview and open-ended questions. Data were analysed descriptively and quantitatively using several indices such as Importance Value Index (IVI), Index of Cultural Significance (ICS), and index of Use Value (UV). The result showed that there were 18 species from two subfamilies that grew wild in both mountain top and valley of Mount Bisma. The highest importance value belonged to Ageratina riparia, which was scored in the mountain top and valley 71.00 and 91.53, respectively. Uses of Asteraceae in Sikunang were varies, ranging from being a side dish, medicine, firewood, souvenir, and other uses. Galinsoga parviflora and Galinsoga quadriradiata showed the highest ICS value of 41, whereas Austroeupatorium inulifolium scored the highest in UV of 1.8. The study presented high number of Asteraceae diversity and use. Thus, implies that Mount Bisma has vast unexplored biodiversity and locals around Mount Bisma have rich traditional knowledge.
Review Paper on Crop Yield Recommendation System
Authors: Khandare Miss. Komal , Bamnote Dr. G. R. , Pundkar Prof. Ms. S. G.
Published: February 2022

Abstract: In Indian economy and employment agriculture contributes a major role. Probably most common problem faced by the Indian farmers is they do not optimize crop based on the necessity of soil, as a result they face serious setback in productivity. This problem can be addressed through precision agriculture. This method takes three parameters into consideration, viz: soil characteristics, soil types and crop yield data collection based on these parameters suggesting the farmer suitable crop to be cultivated. Precision agriculture helps in reduction of non suitable crop which indeed increases productivity, apart from the following advantages like efficacy in input as well as output and better decision making for farming. Keywords: Crop prediction, Support Vector Machine, Decision tree, Naïve Bayes algorithm
Analysis of Boost, Cuk, and Zeta Converter in a Hybrid Power system (PV-Grid)
Authors: Nagar Hemant , Sharma Santosh Kumar
Published: February 2022

Abstract: In this paper analysis of DC-DC converters (Boost, Cuk, and Zeta) is done in a Hybrid power system, which is a Solar PV array and a grid-tied system. In the proposed system, the PWM technique is used to synchronize the PV array output with the grid output. The output voltage waveforms of the three converters are analyzed in terms of settling time, Steady-state and transient period etc. Keywords: PV Array, MPPT, DC-DC converter, IC algorithm
Wireless Charging of Electric Vehicles Using Dual Spiral Coil Magnetic Resonant Coupling
Authors: K S Abhinav
Published: February 2022

Abstract: As we get into a new decade in the 21st century, the progress of electric automobiles has been on a significant rise but still flawed with things like range anxiety, limited number of charging stations, high price range etc. But one of the most important flaw is the range anxiety especially in countries like India where we spend half the time stuck in traffic. So, to overcome that we have come up with a project whose technology is still in development and is being tested worldwide. One method to avoid this is by the introduction of Wireless charging into Electric vehicles which is the main focus of this paper.
Endoscopic Socio: Economic Views on Pandemics
Authors: Raag Ms. Reeva , Bansal Mr. Prerak , Satpathy Col Prof Dr J
Published: February 2022

Abstract: Like all the other years, 2020 started with tonnes of people all over the world roaring twenties on the countdown in their respective time zones and partying all night long whilst tuning on their favourite songs. Welcoming the year 2020 with all the grand merriments all around and with a sense of inner gratification as per our age-old heritage was our topmost priority. But, little did we know that, the year had brought along with it, such catastrophic elements that, in the future run, is going to totally change each and every aspect of our life and will turn our lifestyle upside down. This paper is an endoscopic view on Pandemics: yesterday, today and tomorrow. Keywords: Endoscopic View, Pandemics and Management
RANCANG BANGUN SISTEM INFORMASI PELANGGARAN DAN PERMASALAHAN SISWA DI SEKOLAH
Authors:   Sekolah Tinggi Teknologi Payakumbuh, Budiman Arif , Alhamidi Alhamidi , Asmara Rini
Published: February 2022

In the activities of the learning process at school sometimes there are many violations that are often committed by school students. In addition to violations, there are also problems that often involve students as perpetrators. With an application designed for data processing of student problems and violations based on SMS Gateway, where the new system is a development of the old information system. It is hoped that the new system that the author designed can replace the old system, in order to achieve a higher level of effectiveness and efficiency. In designing this application using the waterfall method which can help produce good applications so that the design can produce applications that are used by schools to obtain information on student problems and violations. With the implementation of this application, it can help schools to find out all the problems faced by students so that they can provide the right solution. And this application is also very helpful for schools to make quick decisions, even parents of students also get information on points of violations that have been committed by students via SMS Gateway.
Texto de Natalia Mardero. Ligas mayores
Authors: Mardero Natalia
Published: February 2022

Los estadounidenses se empeñaron en llevar el béisbol más allá de las fronteras de nuestra galaxia. Por momentos parecía que era lo único que les interesaba. Soñaban con ver a los otros seres del Universo con caps y hotdogs en las tribunas, y las ligas mayores con equipos foráneos (como una forma de modernizarla y adaptarla a los nuevos tiempos). Ni que hablar de la tanda publicitaria en los partidos que se transmitirían vía satélite: una cosa es que te vean en la otra costa del país, ¡y otra cosa es que te  vean en la otra punta de la Vía Láctea!
Laparoscopic Cholecystectomy of Gallbladder Stone Presenting as Empyema in a 9 Years-Old Boy: A Case Report
Authors: Sidoun M , Elfageh M , Belhaje A , Elfageh W
Published: February 2022

Background: The gall bladder stones (GBS) are common disease related to diet habit, obesity, hematological diseases, diabetes mellitus and receiving total parenteral nutrition. GBS is a rare cause of hospitalization of pediatric patients, but have been increasingly diagnosed in recent years due to widespread use of ultrasonography. The aim of this case report study is to determine the clinical presentation, risk factors, valuable diagnostic procedures and outcome of laparoscopic management of cholelithiasis in children. Case report: Our case is a 9 years-old boy with empyemic gallbladder complaining of attacks of colicky epigastric pain associated with recurrent vomiting. On abdominal palpation, there is positive sign of deep tenderness at hypochondrium area and positive murphy sign.  He has central obesity with BMI 29.9, skin folds more than  3.5 cm and waist circumference  more than 90 cm. He has History of high cholesterol and fatty diet and fast food habit, prolonged intake of vitamin D and positive family history. While, no other associated risk factors was detected in our patient. All laboratory investigations was within normal ranges even for his lipid profile. Although, empyema was present,  no leukocytosis was detected.  Abdominal ultrasound showed the gall bladder wall is slightly thick surrounded by pericholycystic fluid, solitary gall bladder stone of 3 cm size and normal CBD. While, post-operative histopathological examination revealed thick wall gallbladder with multiple tiny stones of cholesterol type. The patient was treated with laparoscopic cholecystectomy with promising outcome and no complications. Conclusion: Pediatric surgeons should consider cholecystolithiasis as from differential diagnosis of abdominal pain associated with vomiting in children. Empyema of gallbladder should be considered once murphy sign is positive in such child patients. Child obesity, fatty diet, vitamin D deï¬ciency and family history are possible risk factors. Ultrasonography is the mainstay of diagnosis. Laparoscopic cholecystectomy is the appropriate management for symptomatic cholelithiasis in children.
Prevalence of Candida spp. from in women with vulvovaginal infection in Maternity teaching hospital in Erbil, Iraq
Authors: Abdullah Sahar M.Zaki
Published: February 2022

Objectives: This study aimed to determine the prevalence of Vulvovaginal candidiasis and its association with some risk factors and the incidence of different species of Candida attending the Maternity hospital in Erbil city.Methods: A cross-sectional carried out at Maternity teaching hospital, over a period that conducted from July 2019 to January 2020 on females Patient who complained of itching and erythema, vaginal discharge, swelling. A questionnaire form prepared for each patient, which includes: age, clinical presentation and history of pregnancy, diabetes, and history of using contraceptives and the type of contraceptives. High Vaginal Swabs were collected from patients and subjected to direct microscopy, cultured onto Sabouraud Dextrose Agar (SDA) and, Blood agar. The results, determined by standard microbiological methods, species identification done by using an automated VITEK 2 compact system.Results: From the total of 246 high vaginal swabs collected at Maternity hospital in Erbil city and prevalence of vulvovaginal candidiasis was(54.66%). The highest number of positive cases found to be in the age group(30-34) years and  the positive culture was among pregnant women was 71(63.4%) also the prevalence of vulvovaginal candidiasis was higher among diabetic women 44(67.7%),  frequency of culture positive for Candida spp. in the antibiotic users group was 85(64.4%)  and also the positive culture for candida spp was higher among the contraceptive pills31(57.4%)  however for IUCD user the positive culture was 22(66.7%). Conclusion: In this present study, vulvovaginal candidiasis is more in the young age group and more frequent in the pregnant ladies and the diabetic patients and those using antibiotic and contraceptives, either the pills or Intrauterine contraceptive device. Candida albicans had the highest percentage among other positive isolated from high vaginal swab and there was a significant relation between clinical presentation of the patient with the result of culture.
The motivational factors on using virtual hotel operators’ accommodation among tourists in cebu city, philippines
Authors: Esguerra James G , Arreza Mariae Khrisna B.
Published: February 2022

This study looked into the influence of the motivational factors among foreign and local tourists who availed the VHO-partnered hotels in Cebu City. The study utilized a descriptive-correlational design to look into the level of influence on the factors of (a) ease of navigation, (b) opportunity to earn points and rewards, (c) availability of affordable pricing, and (d) simplicity of reservation process and varied mode of payments. Three hundred thirty-nine 339 tourists participated in this study. The results showed that level of influence is on the highest degree, while on the difference foreign tourists’ traveling for business and leisure show no significant difference. On one hand, local tourists traveling for business and leisure revealed a significant difference. Furthermore, the comparison of the level of influence between local and foreign tourists, in general, showed a noteworthy significant difference. Further study of VHO in a different setting is recommended to get a better generalization on the VHO topic.
The value of bali's local wisdom on hotel employees in badung regency
Authors: Astina Made Arya
Published: February 2022

The island of Bali is famous as one of the most popular tourist destinations in the world. Thus, the development of Bali tourism from year to year is strongly influenced by various factors. Culture becomes an important factor for tourists choosing Bali as their preferred tourist destination. In order to support the tourism, the human resource also becoming the significant aspect that need to be taken into account. Given the importance of the role of human resources in the tourism sector, especially in the hospitality subsector, this study analyzed the value of Bali's local wisdom among star hotels in Badung regency. this study also wanted to find out how the phenomenon of local wisdom value in Bali, especially in Badung regency. Identification of the value of local Balinese wisdom is expected to gain contribution of ideas and thought in human resource development to the hospitality sub-sector in Bali in general, and Badung Regency in particular. Through literature studies and questionnaire consisted of  34 questions to measure the six cultural dimension such as Power Distance, Individualism vs. Collectivity, Masculinity vs. Femininity, Uncertainty Avoidance, Long-term orientation vs. Short-term orientation, and Indulgence vs. Restraint, the data then analysed through the VSM (value survey module) developed. The results shows that Badung regency’s star hotels’ employees have a culture with a high level of collectivism, shows a low power distance value, tend to have Feminine culture, have a culture with a relatively low level of Uncertainty Avoidance
The impact of the events on the improvement of community economy in the waterfront area sambas
Authors: Mutiaraningrum Ira , Evita Rossi , Rosalina Tita
Published: February 2022

Tourism activities in Indonesia are currently the focus of attention of the central and regional governments as one of the sectors that play a very important role in the regional development. Seeing the development of tourism trends in recent years, the local government, especially the Disparpora of Sambas Regency continues to carry out various programs to improve tourism performance, among others by organizing the Bidar Sampan Competition that is held annually and becomes a national cultural event. This study used a quantitative descriptive method. Data were collected through questionnaires and interviews. The results of the questionnaire were analyzed using SPSS 20. The variable of tourism event has no effect and is not significant for improving the community’s economy. This can be seen from the significant of 0.122, which is greater than the significance level (0.05). The tcount was 1.595, is smaller than the ttable (2.04841), with the regression coefficient of 0.446. Tourism events impact on people’s income. Before the tourism was held, the community’s income level was relatively moderate. After the tourism event, people’s income has increased, while after the event, the income of the community returned to normal.
Sound and meaning of megalithic traditional village as a touristic consumption
Authors: Koerniawaty Francisca Titing , Ardika I Wayan
Published: February 2022

This study aims were to criticize and analyse the patterns of the cultural heritage of megalithic traditional village-Bena. The sound and meaning were to reflect the domestic and international tourists towards the cultural heritage of megalithic traditional village-Bena as a touristic consumption.  Bena is the oldest and well-preserved of a megalithic traditional village located in Ngada Regency, East Nusa Tenggara Province.  This qualitative study with ethnographic approach led to depth analysis on tourists’ perception towards the megalithic traditional village of Bena as a touristic consumption. The minority of tourists’ complaint constructs or damages, doesn’t it?
Estudio comparativo de la composición florística, diversidad y productividad de vegas o mallines de Tierra del Fuego, Chile
Authors: Domínguez Erwin , Pérez Claudio
Published: February 2022

Desde un punto de vista funcional y productivo, las vegas o mallines, son un compo- nente fundamental en los sistemas ganaderos de la Patagonia, debido a que repre- sentan la principal fuente de forraje a nivel predial. La hipótesis de trabajo es que, la generación de conocimiento acerca de la diversidad florística y productividad de los distintos tipos de vegas presentes en Magallanes, propiciará un manejo ganadero sustentable de éstas, lo cual, a su vez, garantizará la conservación de las funciones y los servicios ecosistémicos de las vegas. Entre enero de 2019 y mayo 2020, se realizó un estudio en seis estancias de la Isla de Tierra del Fuego, Chile, para describir los componentes taxonómicos, comparar la diversidad de especies de plantas, evaluar la similitud florística, junto con analizar la distribución temporal de la biomasa vegetal a la exclusión de la herbivoría que caracterizan a dichos ecosistemas. Se registraron un total de 53 taxones, distribuidos en 16 familias (Poaceae, Rosaceae, Cyperaceae, Apiaceae y Asteraceae, principalmente) y 40 géneros, de las cuales 40 especies son nativas y 11 introducidas para las vegas. Los sitios analizados presentaron valores de riqueza específica e índices de diversidad menores a los encontrados en Patagonia Argentina. La composición florística y los atributos de la vegetación mostraron patrones vinculados al contenido hídrico del suelo, observándose una relación negativa entre el nivel freático y los valores de riqueza e índices de diversidad. Respecto a cobertura vegetal, los sectores húmedos presentaron porcentajes de cobertura vegetal mayores a los de los sectores semihúmedos. Finalmente, se determinó que las vegas no son homogéneas en su composición de especies, ni en su estructura, estas muestran evidencias de cambios en su diversidad florística, debido a los impactos generados por la intensidad del pastoreo, el cual se refleja en producción de forraje, fluctuando entre 408 a 4.055 kg MS ha-1
Methodological approaches to the formation of a teacher’s digital competence
Authors: Berkimbayev Kamalbek M. , Niyazova Gulzhan Zh.
Published: February 2022

Problem and goal. Digital transformation in education requires a new approach to traditional teaching methods and leads to an accelerated change in methods and forms of education. The study and selection of the possibilities of effective networked environments in the creation of digital educational content today is becoming one of the main needs for educators. This highlighted the need for highly qualified educators who have developed digital competencies and lifelong learning skills that creatively combine continuous professional growth. In this regard, it is important to determine the methodological foundations for the formation of digital competence of teachers. The purpose of the study is to concretize the features of methodological approaches to the formation of teachers digital competence. Methodology. General theoretical research methods were used: study and analysis of theoretical literature data; systemic structural analysis; concretization of the role of approaches to the formation of digital competence of teachers. The analysis of the features of methodological approaches to the formation of digital competence of teachers. Results. The research deals with the problem of the formation of digital competence of teachers. It is shown that the need for the development of digital competence is touched upon in many scientific works, but is not sufficiently disclosed in domestic scientific and practical research. The systematic, activity-based, axiological, personality-oriented approaches to the formation of digital competence is presented. Based on the analysis of the relevant literature, the advantages of the selected approaches in the formation of digital competencies of teachers, their main characteristics were identified. Conclusion. The approaches used as the methodological basis of the research, not only do not contradict each other, but also complement each other, act as a basis for constructing a concept and a structural-meaningful model of the formation of the teachers digital competence.
Model of digital competencies of teachers: terminological and content aspects
Authors: Khochenkova Tatiana E.
Published: February 2022

Problem and goal . The article substantiates the structure of the model of digital competencies of teachers, discusses the principles of organizing personalized methodological support to ensure the processes of digital transformation of the school. Methodology. The construction of the conceptual and terminological apparatus of the research is carried out on the basis of theoretical analysis and synthesis of scientific positions of sources, a variety of definitions of concepts and terms. A comparative analysis of Russian and foreign models of digital competencies allowed to form a construct of a model of digital competencies of a teacher. The modeling of management activities for the development of digital competencies of teachers is carried out. Results. The structure of the model of digital competencies of teachers, level profiles and descriptors of their digital competencies is proposed. The algorithm of personalization of the educational trajectory and a model of management of the development of digital competencies of teachers that meets the requirements of continuity, individualization, and consistency is shown. Conclusion. The results of the study can be applied by digital transformation project teams, heads of educational organizations to improve the management of digital transformation processes.
Adaptation of methods for the determination of biodegradation of bio-textiles with amber particles
Authors:   Institute of Biology, University of Latvia, Dubova Ilze , Apine Agnija , Grauda Dace , Butkauskas Dalius , Lashenko Inga , Jankevica Līga ,   Nature Research Centre,   LU Technologies Ltd
Published: February 2022

One of the criteria for bio-textiles is the potential for biodegradation. Our goal was to adapt methods for the determination of biodegradation of bio-textiles containing amber particles. We adapted methods EN ISO 11721-1: 2001 and ISO 11721-2: 2003 developed for the study of interaction of cellulose – containing textiles and microorganisms. To determine the changes of fabrics, the mechanical properties and level of biodegradation were examined. Experiments revealing level of biodegradation of bio-textile were carried out at the Institute of Biology, University of Latvia while mechanical properties were tested at the Scientific Laboratory of Mechanics and Bio-textiles of the Institute of Mechanics and Mechanical Engineering, Riga Technical University. The study was financially supported by the EUREKA project E!11170 “Innovative multifunctional bio-textile, integrated with silica dioxide and succinate development, and its impact on biosystems” (IFSITEX).
PATTERNS OF SPREADING RADICALISM IN MUHAMMADIYAH ISLAMIC BOARDING SCHOOLS IN EAST JAVA
Authors: Wicaksana Satria Unggul , Arifin Samsul , Hariri Achmad , Efendi Ahmad Bahrul , Harris Nadief Rahman
Published: February 2022

The fact that more and more Islamic boarding schools are affiliated with terrorist groups such as ISIS, cannot be denied. The latest data submitted by BNPT states that there are at least 198 Islamic boarding schools exposed to radicalism, both those affiliated with the Anshorut Khalifah congregation, the Islamiyah congregation, and the Daulah Anshorut Jamaah. This fact shows that efforts to prevent the spread of radicalism and the eradication of criminal acts of terrorism are not completed only with national preparedness, deradicalization, and counter-radicalization. From these problems, the question of this research is how the pattern of the spread of radicalism that occurs in the Muhammadiyah Islamic boarding school in East Java. The method used in this research is Socio-Legal with an ethnographic approach. The purpose of this study is to understand and describe the pattern of the spread of radicalism in the Islamic boarding school environment, and how to anticipate it.

Abstrak: Fakta bahwa semakin banyak pesantren yang berafiliasi dengan kelompok teroris seperti ISIS, tidak dapat dipungkiri. Data terakhir yang disampaikan BNPT menyebutkan setidaknya ada 198 pondok pesantren yang terpapar radikalisme, baik yang berafiliasi dengan jemaah Khalifah Anshorut, jemaah Islamiyah, maupun Jamaah Daulah Anshorut. Fakta ini menunjukkan bahwa upaya pencegahan penyebaran radikalisme dan pemberantasan tindak pidana terorisme tidak hanya dituntaskan dengan kesiapsiagaan nasional, deradikalisasi, dan kontra-radikalisasi. Dari permasalahan tersebut, pertanyaan penelitian ini adalah bagaimana pola penyebaran radikalisme yang terjadi di pondok pesantren Muhammadiyah di Jawa Timur. Metode yang digunakan dalam penelitian ini adalah Socio-Legal dengan pendekatan etnografi. Tujuan dari penelitian ini adalah untuk memahami dan menggambarkan pola penyebaran radikalisme di lingkungan pondok pesantren, dan bagaimana mengantisipasinya.

Kata Kunci: Pesantren, Radikalisme, Terorisme.
Analisis Komponen Penyusun Lembar Kerja Peserta Didik Uji Golongan Darah Sistem ABO
Authors: Vikram Muhammad , Supriatno Bambang , Anggraeni Sri
Published: February 2022

Practicum is an activity that aims to enable students to carry out experiments to prove phenomena based on theories obtained in learning. Practicum refers to the student worksheet (LKPD). The purpose of this study was to analyze and describe the conceptual, practical, and knowledge construction components of the ABO blood group test students' worksheets which are used as a basis for making improvements and reconstruction of LKPD. The research method is descriptive qualitative. Sampling was done by purposive sampling with a total of 5 LKPDs. The LKPD trial was carried out at the UPI physiology laboratory. The instruments used in this research are according to the Vee diagram and the structural analysis instruments developed. The results showed that the conceptual component was in accordance with the demands of the curriculum. Practical components such as work steps, object recording, and standard operating procedure (SOP) activities need to be repaired and reconstructed. The knowledge construction component is quite good and needs repair and reconstruction. So it can be concluded that the LKPD of the ABO system blood group test needs to be reconstructed.
Praktikum merupakan suatu kegiatan yang bertujuan agar siswa dapat melakukan percobaan untuk membuktikan fenomena-fenomena berdasarkan teori yang didapatkan di dalam pembelajaran. Praktikum mengacu kepada lembar kerja peserta didik (LKPD). Tujuan dalam penelitian ini adalah untuk menganalisis dan mendeskripsikan kompenen konseptual, praktikal, dan kontruksi pengetahuan lembar kerja peserta didik uji golongan darah sistem ABO yang digunakan sebagai dasar untuk melakukan perbaikan dan rekontruksi LKPD. Metode penelitian adalah deskriptif kualitatif. Pengambilan sampel dilakukan dengan cara purposive sampling dengan total LKPD sebanyak 5 buah. Uji coba LKPD dilakukan di laboratorium fisiologi UPI. Instrumen yang digunakan dalam penilitian ini menurut diagram Vee dan Instrumen analisis struktur yang dikembangkan. Hasil penelitian menunjukkan bahwa komponen konseptual sudah sesuai dengan tuntutan kurikulum. Komponen praktikal seperti langkah kerja, perekaman objek, dan standar operasional prosedur (SOP) kegiatan perlu diperbaiki dan direkontruksi kembali. Komponen kontruksi pengetahuan sudah cukup baik dan perlu perbaikan dan rekontruksi. Sehingga dapat disimpulkan bahwa LKPD uji golongan darah sistem ABO perlu direkontruksi kembali.