bluuebunny/crossref_metadata_2025 huggingface dataset:
Uzaktan Eğitimde Mobil Alıştırma Uygulamasının Öğrencilerin Başarılarına, Tutumlarına ve Öğrencilerin Teknolojiyle Birlikte Kendi Kendilerine Öğrenme Düzeylerine Etkisi
Authors: ÖZTÜRK Çilem Melis , KORKMAZ Özgen
Published: February 2022

Bu araştırmanın amacı uzaktan eğitim ile gerçekleştirilen Sosyal Bilgiler dersinde mobil alıştırma uygulaması kullanımının öğrencilerin akademik başarılarına, derse yönelik tutumlarına ve öğrencilerin teknolojiyle birlikte kendi kendilerine öğrenme düzeylerine etkisini belirlemektir. Araştırmada ön test – son test kontrol gruplu yarı deneysel desen kullanılmıştır. Araştırmanın çalışma grubunu toplam 48 öğrenci oluşturmaktadır. Araştırma kapsamında deneysel süreç toplam 6 hafta sürmüştür. Bu süreçte belirlenen 6.sınıf Sosyal Bilgiler dersine ait Biz ve Değerlerimiz ünitesine ilişkin konular 6 hafta boyunca deney ve kontrol gruplarında uzaktan eğitim yoluyla ve uygun platformlar aracılığı ile öğrencilere aynı şekilde anlatılmış, deney grubu öğrencilerine hazırlanan mobil alıştırma uygulaması ile işlenen konuları pekiştirme imkanı sunulurken, kontrol grubunda mobil alıştırma uygulaması kullanılmamıştır. Araştırma kapsamında veri toplama aracı olarak Sosyal Bilgiler Tutum Ölçeği, Teknolojiyle Kendi Kendine Öğrenme Ölçeği ve Akademik Başarı Testi kullanılmıştır. Toplanan verileri parametrik testlerden aritmetik ortalama, standart sapma ve t testi kullanılarak analiz edilmiştir. Araştırma kapsamında uzaktan eğitimde mobil alıştırma uygulaması ile pekiştirilmiş sosyal bilgiler dersi öğrencilerin derse yönelik tutumlarına, akademik başarılarına ve teknoloji ile kendi kendilerine öğrenme düzeylerine anlamlı düzeyde katkı sağladığı sonucuna varılmıştır.
Ergonomics and Employee Satisfaction with Special Reference to Selected Branches of Rajshahi Krishi Unnayan Bank
Authors: Rahman Mohammad Azizur , Hossain Zahid , Azam Khan Mohammad Rafiul
Published: February 2022

The study aims at examining the ergonomics practices in the banking sector of Bangladesh especially on Rajshahi Krishi Unnayan Bank (RAKUB) and strains to show the relationship between ergonomics and employee satisfaction in the workplace. This study conducted on the existing employees serving the said bank branches operating in Rangpur. The significance of ergonomics in the workstation was commenced in 1949 in the Ideas Bank in US. Ergonomics, a new design of applying sophisticated tools facilitates employees’ performance and general productivity ensuring congenial work environment. A theoretical framework has been developed showing the dependent variable and independent variables were showed. The study confirmed that there is highly significant relationship between ergonomics factors and employee satisfaction withe help of Pearson Correlation Matrix. Employee satisfaction is very much important for earning profit and maximizing wealth of the bank. The study explored specific factors such as working tools, health, body posture, acoustics, working time, working environment and distinctly analyzed these factors while data collection. Data were collected through Likert’s Five Point Scale and used SPSS software. For internal consistency and reliability test, used Cronbach’s Alpha (.958) and KMO (.625>.5) test for quantifying observations in this study. The study identified six considerable factors having the direct relation with employee satisfaction. The study explored some specific delinquent in the practices of ergonomics in the banks and suggested for overcoming the challenges as well.
Creation of Breaches, with the Help of Explosives, in Metal Structures under Water and on the Ground Surface
Authors: RUS Simona , KAITER Edith-Hilde , IFTIMIE Bogdan , MUNTEANU Cristian , BURSUC Andrei , CHIRIAC Octavian-Gabriel , RUS NICA
Published: February 2022

The present research-development (CD) paper is a multidisciplinary study requested by thedivers belonging to the Diving Center. This study was initiated out of the need to make, with the helpof the smallest possible quantities of explosives of very good quality, cutting/sectioning of bars,chains, metal pipes, etc. and breaches of certain shapes and sizes, to enter, as soon as possible, closedenclosures under water (shipwrecks, planes, etc.) in order to recover documents, objects, and so on.
EFFICIENCY OF MICRO-GRAFTING OF BLACKBERRY MICROPLANTS IN EX VITRO CONDITIONS
Authors: HASHENKO O. A. , KUKHARCHIK N. V.
Published: February 2022

The research was carried out in 2019–2020 in the Department of Biotechnology of RUE “Institute of Fruit-growing”

in the laboratory conditions. The purpose of the study was to evaluate the efficiency of micro-grafting of blackberry varieties

in ex vitro conditions.

The carried out studies on the grafting of rooted ex vitro microshoots can be used to increase the commercial products

output of blackberry varieties. During micro-grafting of blackberry varieties in ex vitro conditions, a 100 % output of rooted

grafts was derived both on agroperlite substrate and on Sphagnum L. moss with a surface layer of peat “Dvinaˮ. With the

complex of morphometric indicators, it is more expedient to use a substrate consisting of Sphagnum L. moss with a surface

layer of peat “Dvinaˮ.

An authentic influence was established with a high level of significance (p < 0.001) of both varietal characteristics

and substrate and two factors together on the length of shoots, the number of internodes and the length of roots of blackberry

varieties. The number of roots depended only on the type of substrate (p < 0.001).
EFFICIENCY OF IN VITRO RHIZOGENESIS AND EX VITRO ADAPTATION OF CERTAIN SEEDLESS VARIETIES OF GRAPES
Authors: BOBOJAHNOVA K. I. , KUKHARCHIK N. V.
Published: February 2022

An assessment of the efficiency of in vitro rhizogenesis of seedless varieties of grapes growing in the territory

of Tajikistan has been given.

In a series of experiments it was shown that all 11 seedless varieties of grapes are characterized by a fairly high degree

of rhizogenesis. Different efficiency of rhizogenesis in in vitro culture was noted, equal to 80.1 % on average for all varieties

and 69.6–100.0 % depending on the variety.

Regenerant plants of all studied varieties have a well-developed root system, shoots and leaf mass.

The height of the shoots and the length of the root of the regenerated plants of the studied objects vary from 8.47 to 14.06

and from 2.38 to 5.03 cm relatively.

The number of leaves per shoot varies from 7.96 to 12.24 cm. The average value of the number of roots per plant is from

2.52 to 3.88 cm.
MODERN WAYS OF RASPBERRY BREEDING
Authors: FROLOVA L. V. , HASHENKO T. A. , HASHENKO O. A.
Published: February 2022

One of the priority tasks in raspberry breeding is to increase the ecological adaptation of varieties to negative biotic and
abiotic factors of a particular cultivation region. Common task for all raspberry cultivation regions is the breeding of highly
productive varieties suitable for mechanized cultivation with high commercial, taste and technological qualities of berries.
The modern breeding process is characterized by a significant increase in the intensity of selection and the acceleration
of the breeding process. Biotechnological methods of clonal micropropagation of valuable genotypes, as well as the use of PCR
for genetic analysis and certification of breeding material, are very encouraging. Scientific integration gives the opportunity
to speed up the breeding process. This is contributed by the creation of modern breeding and nursery-garden centers, where
joint research is carried out by breeders, geneticists, biotechnologists, physiologists, virologists and nursery breeders.
PECULIAR PROPERTIES OF DRIED-FRUIT PRODUCTION
Authors: MAKSIMENKO M. H. , MARTSINKEVICH D. I.
Published: February 2022

The advantages of dried fruits consist in the simplicity of production, storage and transportation convenience, simplicity

of using and the content of a significant amount of sugars, nitrogenous substances, organic acids, pectin and mineral

substances. They also preserve the organoleptic qualities of fresh fruits and berries well.

Some features of fruit drying in different ways have been revealed.

The plum varieties recommended for the prune production have been established: Venherka italianskaya, Venherka

domashnyaya, Wangenheim Venherka, Venherka korneevskaya, Venherka fioletovaya, Venherka azhanskaya, Venherka

obiknovennaya, Venherka krupnaya sladkaya, Venherka yubileinaya, Kirke, Lehenda, Renklod Altana, Renklod Karbisheva,

Stanley, Sinyaya ptsica, Pamyati Kostsinoy, Sentyabrskaya, Sopernica, Tuleu grass, Prune Adyghe, Prune samarkandski,

Prune pozdni chimkenski etc.
DORMANCY PERIOD OF AGRICULTURAL PLANTS
Authors: ZMUSHKO A. A.
Published: February 2022

Dormancy is the state of plants in which the growth processes are stopped, the intensity of metabolism decreases.

Dormancy is expressed in a delay of the seeds germination, tubers, and buds opening. It is the normal physiological state

of plants, and it should be considered as a hereditary biological adaptation to the unfavorable conditions of a particular season.

Dormancy can be controlled by external conditions (exogenous or compulsory dormancy) or by the internal factors

(endogenous, organic or deep dormancy). In addition, there are such types of dormancy as combined, winter, summer,

extended, preliminary. In areas with harsh winters winter dormancy is a prevalent survival strategy for both herbaceous

and woody plants. Winter dormancy is a certain physiological state of woody and shrub plants, in which the plant is able

to withstand low negative temperatures of air and soil.
GROWTH INDICATORS ASSESSMENT OF SEEDLINGS OF VARIOUS TYPES OF COLUMN APPLE-TREE SPECIES
Authors: HRUSHEVA T. P. , LEVSHUNOV V. A. , SAMUS V. A.
Published: February 2022

The research was carried out in 2018–2020 in the nursery-garden department of RUE “Institute of Fruit-growing”.

The possibility of the rootstock component budding with two buds and getting plants of column apple species with two

trunks has been studied.

A high degree of germination and development of buds of the Valuta, Hirlyanda, Sozvezdie species was established,

which were occulted in different ways (with one and two buds) on the rootstock 54-118 (91.5–100.0 %).

The seedlings of the control variant “budding with one bud”, followed by “formation with one trunk” and the option

“budding with two buds” were characterized by the best indicators of the height and diameter of the trunk. In addition, in

these variants a more intensive dynamics of the growth of the seedlings was noted in comparison with the variant “budding

with one bud, followed by shaping with two trunks.”
THE NEW PROSPECTIVE APPLE HYBRIDS OF THE BELARUSIAN SELECTION
Authors: KOZLOVSKAYA Z. A. , YARMOLICH S. A. , MARUDO H. M.
Published: February 2022

The article presents the new generation prospective apple hybrids research results in terms of a complex of valuable

economic and biological characteristics: resistance to diseases, fruit quality, long-term storage ability.

Sources identified: high resistance to scab and phyllostictosis – 2002-63/2 (Darunak × Redkroft), 2002-63/43 (Imant ×

Empire), 2002-64/70 (Pospekh × Topaz) and 2003-65/31 (Freedom × 88-28/20); large-fruitness – 2002-56/69 (Prima ×

85-12/88), 2002-57/43 (87-7/30 s. p.), 2002-58/21 (Redkroft s. p.), 2002-63/2 (Darunak × Redkroft), 2002-63/18 (Liberty s. p.),

2002-64/70 (Pospekh × Topaz) and 2003-65/31 (Freedom × 88-28/20); long-term storage – 2002-56/69 (Prima × 85-12/88),

2002-58/21 (Redkroft s. p.) and 2003-65/31 (Freedom × 88-28/20).

Perspective hybrids with a complex of economic and biological characteristics (high resistance to diseases, attractive

appearance, harmonious taste, keeping quality): 2002-63/43 (Imant × Empire) and 2003-65/31 (Freedom × 88-28/20) were

distinguished. These selections will be used in the plant breeding process and, in the future, will be transferred for state

variety testing.
WILD CHERRY PLANTINGS WITH CONTROLLED GROWTH
AND SUSTAINABLE PRODUCTION OF HIGH QUALITY FRUITS
Authors: LEONOVICH I. S. , KAPICHNIKOVA N. H. , BUDILOVICH K. A.
Published: February 2022

The article presents research data on evaluating the impact of individual methods of wild cherry cultivation technology

on the growth and productivity of trees of the Gastsinets species on a clonal rootstock VSL-2, obtained in an experimental

garden of the department of fruit-growing technology of RUE “Institute of Fruit-growing”.

The techniques of wild cherry cultivation technology are highlighted: the use of a new type of planting material using

a prospective clonal rootstock VSL-2 with a budding height of 60 cm and the deepening with the rootstock part of the seedling

when planting in the garden no more than 1/3 of the length of the conditional root collar and with a budding height of 20 cm

without deepening the rootstock part of a seedling when planting in a garden when placing trees according to compacted

planting schemes 4.5×2.0–1.5 m, providing controlled growth of trees (a decrease in growth rates up to 20 %) and the

production of at least 18 t/hе of fruits of high commercial quality.
Students' Social Interaction, Collaborative Learning, and Perceived Learning in an Online Learning Environment
Authors: Lagat Kevin T. , Concepcion Grace L.
Published: February 2022

Learning is a social process, but limited studies have explored the degree of social interaction and collaborative learning in an online learning environment and whether these variables foster students' perceived learning. This descriptive-correlational research determined the level of students' social interaction, collaborative learning, and perceived learning in the online learning environment and analyzed the relationships between these three (3) variables. The data were gathered using online survey questionnaires distributed to 288 conveniently sampled teacher education students from a state university in an eastern province of the Philippines. Descriptive and inferential statistics were used to analyze the data. Results revealed a high level of social interaction, collaborative learning, and perceived learning in an online learning environment, and a significant relationship among the variables was also noted. Thus, teachers should encourage social interaction and collaborative learning among students to foster learning in an online learning environment.
Determinant of Financial Literacy in Generation Z
Authors: Mutia Edwy Ferby , Shinta Anugrahani Inanda , Teguh Setiaji Yongky , Faiq Pradana Ali
Published: February 2022

The purpose of this study is to determine the effect of financial behavior and financial attitude on financial literacy in generation Z. This study is a quantitative research. Data were obtained from questionnaire that containing a list of statements given to respondents. Then the respondent chooses one alternative answer that fits respondent’s opinion. Secondary data were obtained through various literatures, written information sources and other books. Data analysis used multiple linear regression. The results showed that: 1) the financial attitude had a significant effect on financial literacy, and 2) there was no significant influence between the financial behavior and financial literacy.
The Effect of Market Orientation and Product Innovation to Increase Marketing Performance Moderated by Creativity
Authors: Utami Desy , Mulyono Lalu Edy Herman , Furkan Lalu M.
Published: February 2022

There are many factors that can affect marketing performance. Orientation to competitors, customers, market information, and product innovation can be one of the factors that affect a company's marketing performance. This study aims to determine the effect of market orientation and product innovation on marketing performance, and to determine the effect of creativity in moderating the effect of market orientation and product innovation on marketing performance. The population in this study is the owner/manager of culinary SMEs in the city of Mataram, amounting to 882 people. Sampling technique used was proportional stratified random sampling method with a sample of 90 respondents. The analysis used is PLS (partial least square) with the help of the smartPLS application. The results showed that market orientation had a positive but not significant effect on marketing performance, while product innovation had a positive and significant effect on marketing performance. In addition, as a moderating variable, creativity does not significantly weaken the influence of market orientation and product innovation on marketing performance.
Methodology for the Development of Communicative Competence Through Steam Technologies
Authors: Salokhojaeva Farangiz
Published: February 2022

This article is devoted to the study and analysis of methods for developing communicative competencies through STEAM technologies, as well as the study of didactic conditions for conducting experimental work, which involves the selection and structuring of pedagogical technologies, active methods, cases and tasks for the use of educational technologies and digital applications. The paper raises issues of improving the quality of education and improving the educational system while integrating several sciences to improve the system for developing communicative competencies among future specialists.
Food Waste Treatment Methods and its Effects on the Growth Quality of Plants: A Review
Authors: Arumugam Veknesh , Ismail Muhammad Heikal , Puspadaran Tharsini Amma , Routray Winny , Ngadisih Ngadisih , Wahyu Karyadi Joko Nugroho , Suwignyo Bambang , Suryatmojo Hatma
Published: February 2022

Food waste and leftovers were common materials that were currently used as bio-compost or soil conditioners upon decomposition. Food waste was a source of food that has declined nutritional value and is not deemed favorable for human consumption. Leftovers were defined as uneaten edible remains of a meal. Biodegradation of these components contributes to many macronutrients, including carbon (C), hydrogen (H), nitrogen (N), phosphorus (P), and potassium (K) in the compost, which makes it a suitable growing condition for plants. In this study, the main sources of research data were one hundred thirty-one scientific articles relating to food waste treatment methods and the growth quality of plants over the last few years. This review was the consensus of the role and characteristics of food waste and leftovers as fertilizers. Moreover, the paper briefly discusses the different composting methods for these materials and their corresponding effects on the growth quality of plants.
ОМБЫ ОБЛЫСЫНЫҢ АУМАҒЫНДА ЖЕЛ ЭЛЕКТР СТАНЦИЯЛАРЫН ПАЙДАЛАНУДЫ БАҒАЛАУ
Authors: В. Ф. Хацевский  , К. В. Хацевский  , Д. Ю. Руди
Published: February 2022

"Суммарная кинетическая энергия ветра на Земле оценивается величиной порядка 0,7*1021 Дж. В России энергия ветра может быть эффективно использована в следующих регионах – области: Архангельская, Астраханская, Волгоградская, Калининградская, Камчатская, Ленинградская, Магаданская, Мурманская, Омская, Новосибирская, Пермская, Ростовская, Сахалинская, Тюменская; края: Краснодарский, Приморский, Хабаровский; а также: Дагестан, Калмыкия, Карелия, Коми, Ненецкий автономный округ, Таймырский автономный округ, Хакасия, Чукотка, Якутия, Ямало-Ненецкий автономный округ. Перспективными являются и другие отдельные районы многих краев, областей и республик РФ. Если выясняется, что на интересующей территории нет достаточных ветроэнергетических ресурсов, не имеет никакого смысла проводить дальнейшие действия по решению задачи применения ВЭУ в этом месте. В работе представлен краткий анализ перспективности применения современных ветроэнергетических установок на территории Омской области. Рассмотрены характерные типы генераторных систем для ветроэнергетических установок и проанализированы достоинства и недостатки использования различных типов электрических машин в качестве генерирующих устройств ВЭУ. Выполнено исследование применимости возобновляемых источников электроэнергии, определено направление развития ветроэнергетических установок. Дана комплексная оценка эффективности применения альтернативных источников электроэнергии на территории Омской области.
Технологические подходы разработки и сопровождения мобильного приложения
Authors: Н. Н. Оспанова  , А. З. Даутова  , А. С. Аканова  , А. Ж. Бектурсын
Published: February 2022

В данной статье постарались показать, что мобильные технологии являются важной частью нашего быта, уже нельзя представить себе, что мы не пользуемся мобильным телефоном или планшетом, и тем более интернетом, эти технологии окружают нас повсюду, они известны маленькому ребенку и пенсионеру. Это расширяет возможности донесения целенаправленной информации о достопримечательностях и услугах широким массам населения, рост прибыли, и снижение расходов. В статье приведены результаты практической реализации мобильного приложения «Travel PVL», которое могло быть полезным для туристов. Данное мобильное приложение разработано для операционных систем Android и iOS и соответственно размещены в GooglePlay и AppStore для окончательного использования пользователями. Разработанное мобильное приложение в виде электронной справочно-информационной базы о туристско-рекреационных ресурсах Павлодарской области, включающую в себя онлайн карту и мобильное приложение степени благоприятности развития туризма и рекреации на территории Павлодарской области, с нанесенными туристскими объектами, навигационной картой сакральных мест. В ходе разработки мобильного приложения сформированы административные панели – базы данных, упрощающие добавление информации в реальном времени в мобильное приложение Объектом исследования является показ процесса разработки программного обеспечения с применением современных языков и технологий программирования.
Разряд режимінің, генератор параметрлерінің және материалдың қасиеттерінің жарықшақтардың пайда болуына және қатты орталардың бұзылуына әсері
Authors: Е. Ж. Сарсикеев  , Н. С. Кузнецова  , А. К. Оразбекова
Published: February 2022

Бұл мақалада қатты электр разрядының әсерінен бұзылу механизмі зерттелген. Біртекті емес ортадағы электрлік жарылысы күшті электр өрістеріндегі материалдардың әрекетін анықтайтын диэлектриктердің электрофизикасындағы іргелі құбылыс болып табылады. Зерттеудің өзектілігі материалдарды ұсақтау, жер үсті шөгінділерінен тазарту және беткі қабаттарды жою, тау-кен және құрылыстарды қайта құру кезінде габаритті емес материалдарды жою, туннельдер салу, бұрғыланған қадаларды өндіру және т.б. үшін электр разрядтық технологияларының келешегімен түсіндіріледі. Теориялық қиындықтар стохастикалық дамып келе жатқан разрядтық каналдар мен жарықтардың аналитикалық сипаттамасының күрделілігіне, сондай-ақ электрлік және механикалық процестерді бірлесіп қарау проблемасына байланысты. Сонымен қатар, ағызу арналары мен жарықтар үш өлшемді құрылымдарды құрайды, олардың пішіні бұзылу процесіне айтарлықтай әсер етуі мүмкін. Соққы толқынының параметрлеріне байланысты материал құрылымында пайда болатын механикалық кернеулердің әсеріне талдау жасалды. Жұмыстың жаңалығы уақытша диаграммалар мен диаграммалар алынған толқындық бөліну процесіне плазмалық арнаға энергия енгізу мөлшері мен уақытының әсерін бағалау болып табылады. Жылжымалы кавернадағы келесі сипаттамаларды зерттеу нәтижелері келтірілген: радиалды және тангенциалды кернеулер, қатты дененің бетін плазмалық арнадан көтеру, қысу, созылу және ығысу деформациясы, генерациялайтын сыйымдылықтың салыстырмалы энергия ағымының тогы және арнаға енгізу энергиясының қуаты. Жұмыс нәтижелерін электр генераторының параметрлерін анықтау және бұзылатын материалдың түрі мен құрылымын ескере отырып, оның жұмысының оңтайлы режимдерін қалыптастыру үшін пайдалануға болады.
RELEASE PROFILE OF BISPHENOL-A FROM DENTAL RESINS IN WATER ASSESSED BY LC-MS/MS
Authors: SILVA Bruno Pereira da , RÜBENSAM Gabriel , SAAFELD Claudiela Wachholz , WEBER João Batista Blessmann
Published: February 2022

Dental resins have been designed to replace amalgam restorations due to their more favorable physical, chemical, and biological properties. However, depending on its composition, the efficiency of its polymerization, and the degradation of the polymer matrix, Bisphenol-A can be present and therefore released from this material to the human body. It has been reported that residues of additives and minority by-products of polymer reactions, such as Bisphenol-A, can be released from plastics into aqueous media through polymer hydration, water-polymer diffusion, residue dissolution, and equilibrium between dissolved residues in water and polymer. Over time, this could lead to a polymer material with an external layer practically free of Bisphenol-A. However, the newly formed layer could be removed by brushing during oral cleaning, similar to toothbrushing, exposing the new layer containing Bisphenol-A to the aqueous media. Due to the toxic effects of this compound, an increasing number of plastics labeled as BPA-free have been introduced to the dental market, including tooth coating, dental sealants, and resins. Nevertheless, more specific studies on analytical chemistry have revealed a trace of Bisphenol-A in dental resins labeled as BPA-free and pointed out the need for even more sensitive and accurate detection methods to help manufacturers evaluate the presence of background contaminations in their products and to avoid false-negative results. In this way, liquid chromatography-tandem mass spectrometry has been considered one of the most suitable methods for confirming Bisphenol-A even at low concentrations, in high complex matrices, due to its high select sensitivity. In the present work, we developed a sensitive, reliable, and efficient approach to trace the release profile of Bisphenol-A by LC-MS/MS in dental resin samples purchased in the Brazilian dental market. With the analysis of five different brands of resin composites performed in eight days of exposition to water, four of them released Bisphenol-A from 3.4 pg/mm2 to 10.1 ng/mm2. The brand labeled as BPA-free released BPA at concentrations of 1.1 ng/mm2. However, one sample reached the maximum of released BPA in only 3 days, one in 4 days, and two virtually did not reach a maximum of BPA released into the water in the window time assessed. Limits of detection and quantification of the LC-MS/MS method were 40 pg/mm2 and 100 pg/mm2, respectively, and allowed the quantification of BPA released from a composite labeled as BPA-free. For future analysis, we will conduct a more comprehensive study on the release profile of BPA from resin composites into the water using a tooth brushing simulator to determine if the obtained profiles might have clinical implications.
Profiles of circular RNAs in human blood and their potential roles in preeclampsia
Authors: Liu Min , Luo XiaoLei , Gao Linbo , Shi Mengdan , Zhou Rong , Wang Tao
Published: February 2022

Introduction

To identify circular RNAs (circRNAs) expression profiles in the blood of preeclampsia (PE) and healthy pregnant women, further clarify the possible mechanisms of circRNAs involved in the pathogenesis of PE.

Material and methods

Methods: Whole blood samples were collected from 5 paired PE and healthy pregnant women, the differentially expressed circRNAs (DE-circRNAs) were investigated by using high-throughput sequencing. Bioinformatics was performed to evaluate the sequencing results and obtain insights into possible mechanisms, such as GO and KEGG pathway analyses. Then, six DE-circRNAs were chosen and validated by quantitative real-time PCR (RT-qPCR) in an enlarged sample size. Their diagnostic values were analyzed by the receiver operating characteristic (ROC) curve. The establishment and analysis of the circRNA-miRNA-mRNA network were made for the validated DE-circRNAs.

Results

Results: A total of 139 DE-circRNAs between PE and controls were revealed. Of them, 18 circRNAs were upregulated, and 31 circRNAs were downregulated (fold change >2 and P-value < 0.05). Three circRNAs (has-circ-0007717, has-circ-0006460, and has-circ-0093055) were higher in both blood of early-onset and late-onset PE patients. The ROC analysis showed area under the curve values of has-circ-0007717, has-circ-0006460, and has-circ-0093055 were 0.64 (P=0.11), 0.72 (P=0.01), and 0.72 (P=0.01), respectively. Then, the circRNA-miRNA-mRNA competing for endogenous RNAs (ceRNAs) network comprised 2 circRNAs, 154 miRNAs, and 6 mRNAs. KEGG analysis of these mRNAs included immunity response-related pathways and cellular senescence.

Conclusions

Conclusion: CeRNA regulatory network indicated that the DE-circRNAs might participate in the processes of cell immunity response.
Privatization and Judicialization in Resource Extraction: Comparing Labor Militancy in the Oil Fields of Russia and Kazakhstan
Authors: Evans Allison D.
Published: February 2022

What explains variation in labor militancy and trade union tactics across similar oil regions? Existing literatures on the resource curse and labor in resource extraction provide contradictory expectations that do not account for variation. By comparing two prominent oil regions, Khanty-Mansi Autonomous Okrug, Russia and Mangystau, Kazakhstan, I find labor militancy is explained by more contingent factors than broader theories suggest. This article identifies oil privatization as a critical juncture that led to diverging path-dependent processes, finding that privatizing to foreign or domestic owners and the relative independence of the legal system explain the differing manifestations of labor militancy observed. These findings are potentially generalizable to post-communist and developing countries that privatize their extractive sectors and have a history of state control of labor relations.
Bài 5
Authors: Nghia Ngu Duy , Tu Tran Anh , Tu Ngo Huy , Ha Pham Thi Cam , Linh Tran Duc , Son Nguyen Hong , Thuy Nguyen Thi Thu , Thu Le Thi Hien , Hang Pham Thi Thu , Hau Vu Thi Bich , Hien Do Thi Hong , Condell Orla , Otsu Satoko , Hasebe F , Khanh Nguyen Cong , Duong Tran Nhu
Published: February 2022

Nội dung bài 5
Các yếu tố ảnh hưởng đến đạt mục tiêu kiểm soát đường máu trên bệnh nhân đái tháo đường típ 2 tại Bệnh viện Đa khoa Quốc tế Hải Phòng năm 2020
Authors: Phương Nguyễn Thị Thu , Hưng Vũ Quang
Published: February 2022

Đái tháo đường típ 2 được báo cáo là một trong các bệnh mạn tính không lây khó kiểm soát và quản lý mặc dù bệnh nhân đã tuân thủ điều trị. Nghiên cứu hồi cứu mô tả cắt ngang 10.459 bệnh án điện tử nhằm mục tiêu mô tả đặc điểm và các yếu tố ảnh hưởng đến việc đạt mục tiêu kiểm soát đường huyết ở bệnh nhân đái tháo đường típ 2 tại Bệnh viện Đa khoa Quốc tế Hải Phòng năm 2020. Qua phân tích chúng tôi thấy tỷ lệ đạt mục tiêu điều trị của nhóm bệnh nhân đái tháo đường típ 2 của bệnh viện là 44,6%. Chỉ số HbA1C trung bình của nhóm bệnh nhân nghiên cứu là 7,7 ± 1,6. Metformin là hoạt chất được sử dụng nhiều nhất để điều trị đái tháo đường típ 2 ở nhóm bệnh nhân nghiên cứu của chúng tôi với tỷ lệ 38,6%. Phân tích hồi quy logistic đa biến cho thấy các yếu tố tuổi vàthuốc hạ đường máu sử dụng ảnh hưởng có ý nghĩa đến việc không đạt mục tiêu điều trị (HbA1C < 7,0%) với Odd ratio lần lượt bằng 0,996, 0,4 với p-value < 0,05. Nghiên cứu của chúng tôi đã cung cấp thông tin tham khảo cho các nhà lâm sàng trong việc tiên lượng và theo dõi điều trị bệnh nhân đái tháo đường típ 2.
Sự hài lòng của người bệnh điều trị nội trú về chất lượng dịch vụ y tế tại Trung tâm Y tế huyện Nghĩa Đàn, tỉnh Nghệ An năm 2020
Authors: Tân Chu Khắc , Hải Phạm Thanh , Hưng Vũ Quang , Anh Nguyễn Thế , Đức Cáp Minh
Published: February 2022

Nghiên cứu được tiến hành nhằm mục tiêu mô tả sự hài lòng của người bệnh về chất lượng dịch vụ y tế tại Trung tâm Y tế huyện Nghĩa Đàn, tỉnh Nghệ An năm 2020. Qua phỏng vấn trực tiếp 500 bệnh nhân điều trị nội trú bằng bộ câu hỏi thiết kế sẵn cho thấy: Tỷ lệ nữ giới là 59,4%, nam giới là 40,6%; bệnh nhân có độ tuổi từ 18 - 29 tuổi chiếm tỷ lệ cao nhất 31,4%; thấp nhất là bệnh nhân < 18 tuổi 1,8%. Tỷ lệ % hài lòng chung của người bệnh là 77,6%. Tỷ lệ % về sự hài lòng ở các khía cạnh tăng dần theo thứ tự: Cơ sở vật chất và phương tiện phục vụ người bệnh 74,0%; sự minh bạch thông tin và thủ tục khám bệnh, điều trị (76,6%); thái độ ứng xử, năng lực chuyên môn của nhân viên y tế (77,6%); kết quả cung cấp dịch vụ (78,8%); khả năng tiếp cận (82,0%). Bệnh viện cần cải thiện và nâng cao chất lượng dịch vụ tế phục vụ người bệnh, đặc biệt buồng bệnh cần được đánh số và được trang bị quạt, máy sưởi, hoặc điều hòa.
AWARENESS AND GEOSPATIAL EXAMINATION OF HEALTHCARE FACILITIES IN OGUN STATE NIGERIA: NEED FOR HEALTH CARE DEVELOPMENT
Authors: Azuh Dominic Ezinwa , Adewale Adeyemi Gideon , Akinniyi Akinduti Paul , Iyabo Olasehinde Grace , Peter Olaoye Olusegun , Ayomitunde Aderemi Timothy
Published: February 2022

1*, 2, 3, 4, 5 and 6
Impact of national and international celebrity endorsement on consumer purchase intentions
Authors: Razi Shama , Hasan Tania , Saqif Zaeem
Published: February 2022

Celebrity endorsement has been one of the most prevalent marketing techniques employed by marketers to promote their brands. This paper aims to study the impact of national and international celebrity endorsement on consumer purchase intention towards high and low involvement products. An experimental research design has been implied in this research study. To test the influence of celebrity endorsement on consumer purchase intention, 150 university faculty members and students divided into six treatments were conducted. The results of this experiment show that buyers, when it comes to purchasing a low involvement product, can rely on ads which are endorsed by international celebrities. On the other hand, when there is a question of purchasing a high involvement product they trust market offerings that are being endorsed by national celebrities.
Climate consequences of hydrogen leakage
Authors: Ocko Ilissa B. , Hamburg Steven P.
Published: February 2022

Abstract. Hydrogen is quickly gaining attention as a “clean” fuel that can support a transition to a decarbonized energy system. Given the urgency to decarbonize global energy systems, governments and industry are moving ahead with efforts to increase hydrogen technologies, infrastructure, and applications at an unprecedented pace, including billions in national incentives and direct investments. While zero- and low-carbon hydrogen hold great promise to help solve some of the world’s most pressing energy challenges, hydrogen is also a short-lived indirect greenhouse gas whose warming impact is not well-characterized. There are multiple areas of uncertainty. To date, hydrogen’s warming effects have been primarily characterized using the GWP-100 metric—which is misleading for short-lived gases, such as hydrogen, as it obscures impacts on shorter timescales. Furthermore, hydrogen is a small molecule known to easily leak into the atmosphere; however, the total amount of leakage in current hydrogen systems remains unknown, with the analytical capacity to accurately measure leakage in situ largely unavailable. Therefore, the net climate benefit of a future hydrogen economy is unknown over the near to medium term. This paper explores the climate implications of hydrogen leakage over all timescales by assessing the change in cumulative radiative forcing from replacing fossil fuel systems with hydrogen applications and estimating temperature responses to leakage using a plausible range of hydrogen leak rates and the latest estimate of hydrogen’s radiative efficiency. We also consider the climate impacts from methane leakage when the hydrogen is produced via natural gas with CCUS (‘blue’ hydrogen) as opposed to renewables and water (‘green’ hydrogen); both are considered “clean”. We find that the climate consequences of hydrogen applications relative to their fossil fuel counterparts strongly depend on time horizon and leakage rate, with vastly different climate outcomes in the near- vs. long-term and for best- vs. worst-case leak rates. For example, worst-case hydrogen leak rates could yield a near-doubling in radiative forcing relative to fossil fuel counterparts in the first five years following the technology switch, but an 80 % decrease in radiative forcing over the following 100 years after deployment. On the other hand, best-case hydrogen leak rates could yield an 80 % decrease in radiative forcing in the first five years. Simple estimates of temperature responses to a 10 % hydrogen leakage rate (a high but plausible level) suggest a theoretical maximum contribution of around a quarter of a degree (C) in 2050 if hydrogen replaces the entire fossil fuel energy system, and at least a tenth of a degree (C) in 2050 if hydrogen accounts for more than half of final energy demand. Thus, a greater understanding of hydrogen’s warming impacts at different possible leakage rates is critical to inform where and how to deploy hydrogen effectively in the emerging decarbonized global economy.
Air Control Toolbox (ACT_v1.0): a flexible surrogate model to explore mitigation scenarios in air quality forecasts
Authors: Colette Augustin , Rouïl Laurence , Meleux Frédérik , Lemaire Vincent , Raux Blandine
Published: February 2022

Abstract. We introduce the first toolbox that allows exploring the benefit
of air pollution mitigation scenarios in the every-day air quality forecasts
through a web interface. Chemistry-transport models (CTMs) are required to
forecast air pollution episodes and assess the benefit that shall be
expected from mitigation strategies. However, their complexity prohibits
offering a high level of flexibility in the tested emission reductions. The
Air Control Toolbox (ACT) introduces an innovative automated calibration
method to cope with this limitation. It consists of a surrogate model
trained on a limited set of sensitivity scenarios to allow exploring any
combination of mitigation measures. As such, we take the best of the physical
and chemical complexity of CTMs, operated on high-performance computers for
the every-day forecast, but we approximate a simplified response function
that can be operated through a website to emulate the sensitivity of the
atmospheric system to anthropogenic emission changes for a given day and
location. The numerical experimental plan to design the structure of the surrogate
model is detailed by increasing level of complexity. The structure of the
surrogate model ultimately selected is a quadrivariate polynomial of first
order for residential heating emissions and second order for agriculture,
industry and traffic emissions with three interaction terms. It is
calibrated against 12 sensitivity CTM simulations, at each grid point and
every day for PM10, PM2.5, O3 (both as daily mean and daily
maximum) and NO2. The validation study demonstrates that we can keep
relative errors below 2 % at 95 % of the grid points and days for all
pollutants. The selected approach makes ACT the first air quality surrogate model
capable to capture non-linearities in atmospheric chemistry response.
Existing air quality surrogate models generally rely on a linearity
assumption over a given range of emission reductions, which often limits
their applicability to annual indicators. Such a structure makes ACT
especially relevant to understand the main drivers of air pollution episode
analysis. This feature is a strong asset of this innovative tool which makes
it also relevant for source apportionment and chemical regime analysis. This
breakthrough was only possible by assuming uniform and constant emission
reductions for the four targeted activity sectors. This version of the tool
is therefore not suited to investigate short-term mitigation measures or
spatially varying emission reductions.
Leveraging sap flow data in a catchment-scale hybrid model to improve soil moisture and transpiration estimates
Authors: Loritz Ralf , Bassiouni Maoya , Hildebrandt Anke , Hassler Sibylle K. , Zehe Erwin
Published: February 2022

Abstract. Sap flow encodes information about how plants regulate opening and closing of stomata in response to varying soil water supply and atmospheric water demand. This study leverages this valuable information with data-model integration and deep learning to estimate canopy conductance in a hybrid catchment-scale model for more accurate hydrological simulations. Using data from three consecutive growing seasons, we first highlight that integrating canopy conductance inferred from sap flow data in a hydrological model leads to more realistic soil moisture estimates than using the conventional Jarvis-Stewart equation, particularly during drought conditions. The applicability of this first approach is, however, limited to the period where sap flow data are available. To overcome this limitation, we subsequently train a deep learning network to predict catchment-averaged sap velocities based on standard hourly meteorological data. These simulated velocities are then used to estimate canopy conductance, allowing simulations for periods without sap flow data. We show that the hybrid model, which uses the canopy conductance from the machine learning approach, matches soil moisture and transpiration equally well as model runs using observed sap flow data and has good potential for extrapolation beyond the study site. We conclude that such hybrid approaches open promising perspectives for more parsimonious process parametrizations by improving our ability to incorporate novel or untypical data sets into hydrological models.
Reconstructing climate trends adds skills to seasonal reference crop evapotranspiration forecasting
Authors: Yang Qichun , Wang Quan J. , Western Andrew W. , Wu Wenyan , Shao Yawen , Hakala Kirsti
Published: February 2022

Abstract. Evapotranspiration plays an important role in the terrestrial water cycle. Reference crop evapotranspiration (ETo) has been widely used to estimate water transfer from vegetation surface to the atmosphere. Seasonal ETo forecasting provides valuable information for effective water resource management and planning. Climate forecasts from general circulation models (GCMs) have been increasingly used to produce seasonal ETo forecasts. Statistical calibration plays a critical role in correcting bias and dispersion errors in GCM-based ETo forecasts. However, time-dependent errors resulting from GCM misrepresentations of climate trends have not been explicitly corrected in ETo forecast calibrations. We hypothesize that reconstructing climate trends through statistical calibration will add extra skills to seasonal ETo forecasts. To test this hypothesis, we calibrate raw seasonal ETo forecasts constructed with climate forecasts from the European Centre for Medium-Range Weather Forecasts (ECMWF) SEAS5 model across Australia, using the recently developed Bayesian joint probability trend-aware (BJP-ti) model. Raw ETo forecasts demonstrate significant inconsistencies with
observations in both magnitudes and spatial patterns of temporal trends,
particularly at long lead times. The BJP-ti model effectively corrects
misrepresented trends and reconstructs the observed trends in calibrated
forecasts. Improving trends through statistical calibration increases the
correlation coefficient between calibrated forecasts and observations (r) by up to 0.25 and improves the continuous ranked probability score (CRPS) skill score by up to 15 (%) in regions where climate trends are misrepresented by raw forecasts. Skillful ETo forecasts produced in this study could be used for streamflow forecasting, modeling of soil moisture dynamics, and irrigation water management. This investigation confirms the necessity of reconstructing climate trends in GCM-based seasonal ETo forecasting and provides an effective tool for addressing this need. We anticipate that future GCM-based seasonal ETo forecasting will benefit from correcting time-dependent errors through trend reconstruction.
Sentinel-1 time series for mapping snow cover depletion and timing of snowmelt in Arctic periglacial environments: case study from Zackenberg and Kobbefjord, Greenland
Authors: Buchelt Sebastian , Skov Kirstine , Rasmussen Kerstin Krøier , Ullmann Tobias
Published: February 2022

Abstract. Snow cover (SC) and timing of snowmelt are key regulators of a wide range of Arctic ecosystem functions. Both are strongly inﬂuenced by the ampliﬁed Arctic warming and essential variables to understand environmental changes and their dynamics. This study evaluates the potential of Sentinel-1 (S-1) synthetic aperture radar (SAR) time series for monitoring SC depletion and snowmelt with high spatiotemporal resolution to capture their understudied small-scale heterogeneity. We use 97 dual-polarized S-1 SAR images acquired over northeastern Greenland and 94 over southwestern Greenland in the interferometric wide swath mode from the years 2017 and 2018. Comparison of S-1 intensity against SC fraction maps derived from orthorectiﬁed terrestrial time-lapse imagery indicates that SAR backscatter can increase before a decrease in SC fraction is observed. Hence, the increase in backscatter is related to changing snowpack properties during the runoff phase as well as decreasing SC fraction. We here present a novel empirical approach based on the temporal evolution of the SAR signal to identify start of runoff (SOR), end of snow cover (EOS) and SC extent for each S-1 observation date during melt using backscatter thresholds as well as the derivative. Comparison of SC with orthorectified time-lapse imagery indicates that HV polarization outperforms HH when using a global threshold. The derivative avoids manual selection of thresholds and adapts to different environmental settings and seasonal conditions. With a global configuration (threshold: 4 dB; polarization: HV) as well as with the derivative, the overall accuracy of SC maps was in all cases above 75 % and in more than half of cases above 90 %. Based on the physical principle of SAR backscatter during snowmelt, our approach is expected to work well in other low-vegetation areas and, hence, could support large-scale SC monitoring at high spatiotemporal resolution (20 m, 6 d) with high accuracy.
Alunos com deficiência física: cognições sobre suas habilidades sociais e de seus colegas
Authors: Costa Sueley Carvalho , Lellis Irani Lauer
Published: February 2022

Pesquisas em habilidades sociais (HS) de alunos com deficiência ainda se mostram timidamente no contexto da Educação Física. O objetivo deste trabalho é conhecer o que alunos com deficiência física pensam sobre suas HS e de seus colegas e sobre sua relação interpessoal nas aulas de Educação Física. Participaram cinco alunos com deficiência física não cadeirantes, de 11 a 15 anos, do ensino fundamental II, do 6° ao 9° ano, de cinco escolas municipais de Santarém-Pará. Para coleta de dados, foi utilizada a entrevista semiestruturada. Para análise de dados, foi utilizada a técnica do Discurso do Sujeito Coletivo. Os resultados apresentaram que os participantes reconhecem e compreendem suas HS e de seus colegas e concluem que seus colegas ainda têm atitudes de discriminação e exclusão por conta de sua condição física. Contudo, percebem que as HS estão presentes no contexto das aulas de Educação Física e favorecem o contexto inclusivo.
Análise da Sobrevida de Mulheres Diagnosticadas com Câncer de Mama Triplo Negativo Utilizando Modelo de Longa Duração
Authors: Milani Eder , F. Calsavara Vinicius , Scudilio Juliana , Tomazella Carolina D. , Bonini Carolina R. , Antunes Caroline C. , Santos Danielly G. , Zanotti Mariana A. , Tomazella Vera
Published: February 2022

O câncer de mama é umas das principais causas de morte de mulheres no mundo, no Brasil a realidade não é diferente. Identificar fatores de riscos e analisar o efeito dos tratamentos na vida dos pacientes são de extrema importância para o melhor entendimento dessa doença. Este trabalho tem como objetivo analisar a proporção de mulheres que sobrevivem por um longo período de tempo após serem diagnosticadas com câncer de mama. Para isso se faz uso de modelos estatísticos que permitem acomodar tais características. Os dados analisados são de pacientes que foram diagnosticadas com câncer de mama triplo negativo e submetidas ao tratamento quimioterápico no A.C.Camargo Câncer Center. Alguns fatores que influenciam na determinação da proporção de cura são identificados. Nota-se que mulheres que apresentam inicialmente um melhor prognóstico mostram uma maior chance de sobreviver por um longo período de tempo, indicando assim a necessidade de ampliação do rastreamento e diagnóstico precoce do câncer de mama.