bluuebunny/crossref_metadata_2025 huggingface dataset:
ИСПОЛЬЗОВАНИЕ ГЕКСАНА ДЛЯ ПОВЫШЕНИЯ ЭФФЕКТИВНОСТИ ПАРА ПРИ ДОБЫЧЕ ВЫСОКОВЯЗКОЙ НЕФТИ
Authors:   сеньор-лектор кафедры «Нефтяная инженерия» Satbayev University, https://orcid.org/0000-0001- 6621-101X, Логвиненконко А.В. , Байханова Н.Н. ,   магистрант кафедры «Физическая химия, катализ и нефтехимия» КазНУ им. Аль-Фараби, https://orcid.org/0000-0002- 5073-6476
Published: February 2022

Казахстан располагает значительным количеством месторождений с запасами высоковязкой нефти. Большинство таких нефтей залегает на небольшой глубине - до 1000 м; их динамическая вязкость – более 1000 мПа*с. В мировой практике в подобных условиях применяют хорошо зарекомендовавшие себя способы добычи: SAGD (парогравитационный дренаж нефти) и VAPEX (закачка парообразного растворителя в пласт в режиме гравитационного дренажа). В Казахстане такие технологии не применяют. В работе приведены результаты лабораторных исследований изменения динамической вязкости высоковязкой нефти при смешивании её в различных соотношениях с химическим растворителем – гексаном. В мировой практике добавление гексана к закачиваемому пару приводит к наиболее значительному повышению совокупной добычи нефти и снижению затрат на генерацию пара. Эффективность действия гексана зависит от х физических свойств получаемой смеси: растворитель-нефть. Гексан рекомендуется авторами в качестве добавки в малых концентрациях к основному реагенту закачки (пар, горячая вода, пропан-бутановая смесь, СО2 и др.).
НОВЫЕ РЕАГЕНТЫ ДЛЯ ПОДГОТОВКИ НЕФТИ В ПРОМЫСЛОВЫХ УСЛОВИЯХ
Authors:   кандидат технических наук, доцент кафедры «Биотехнология», https://orcid.org/0000-0001- 9045-0838, Надирова Ж.К. , Отарбаев Н.Ш. ,   PhD, старший преподаватель кафедры «Нефтегазовое дело», https://orcid.org/0000-0002- 1914-398X, Бимбетова Г.Ж. ,   кандидат технических наук, профессор кафедры «Нефтегазовое дело», https://orcid.org/0000-0003- 1859-5551
Published: February 2022

Рассмотрены вопросы получения новых химических реагентов и их использование для разрушения водонефтяных эмульсий в промысловых условиях при подготовке парафинистой нефти. Целью проведенных исследований являлось создание эффективных реагентов для обезвоживания и обессоливания парафинистых нефтей, снижения вязкости водонефтяной эмульсии. Предлагается способ смешения поверхностно-активных веществ (ПАВ) различного строения с исходными реагентами, подбор составов с различными свойствами. При этом в состав ПАВ вводится несколько индивидуальных соединений, которые в смеси проявляют синергетический эффект. Предлагаемые композиции обладают комплексом свойств, – как результат взаимодействия компонентов смеси. Проведенными исследованиями выявлен состав реагента, включающего неионогенный деэмульгатор (этерифицированные жирные кислоты ,выделенные из хлопкового соапстока), а также cульфанол, cинтанол АЛМ-10 и растворитель при определенных их соотношениях. Лабораторные испытания новой композиции, выполненные на нефти месторождения Ащысайи модельных эмульсиях, показали, что композиция относится к эффективным реагентам для разрушения водонефтяных эмульсий. Было установлено, что сульфанол проявляет хорошо выраженные моющие свойства в составе композиции. При обезвоживании нефтяных эмульсий выявлен синергизм деэмульгирующего действия разработанного состава при определенном соотношении используемых компонентов. Исследовалась стабильность эмульсии в течение 3 часов при температуре 20 и 60°С. Установлено, что для нефтяной эмульсии в промежутке времени от 30 минут до 3 часов, количество отделившейся воды составило от 30 до 60% в зависимости от температуры. Эффективность действия реагента предложенного состава показана также на микроскопических снимках. По качеству воздействия на обезвоживание нефтяной эмульсии реагент не уступает известным составам, используемым для деэмульсации парафинистой нефти. Поэтому его функциональные возможностей представляет практический интерес для промысловой подготовки скважинной продукции на месторождениях по добыче и подготовке нефти.
ПОВЫШЕНИЕ ЭФФЕКТИВНОСТИ ФУНКЦИОНИРОВАНИЯ НЕФТЕГАЗОВОГО КОМПЛЕКСА КАЗАХСТАНА В УСЛОВИЯХ ТЕХНОЛОГИЧЕСКИХ И ОРГАНИЗАЦИОННЫХ ПРЕОБРАЗОВАНИЙ
Authors:   доктор экономических наук, профессор, главный научный сотрудник Института экономики КН МОН РК,  https://orcid.org/0000-0001- 9508-1912, Егоров О.И. , Жумагулов Р.Б. ,   доктор экономических наук, академик Международной инженерной академии, Председатель правления эмирато-казахстанской инвестиционной группы, Чигаркина О.А. ,   кандидат экономических наук, доцент, ведущий научный сотрудник Института экономики КН МОН РК, https://orcid.id/0000-0002- 4732-5094
Published: February 2022

Интенсивное развитие отраслей нефтегазового комплекса вызывает острую необходимость решения проблемы гармоничного развития производительных сил. Известно, что эффективность вкладываемых средств в развитие нефтегазовой отрасли в значительной степени снижается вследствие больших потерь продукции, производимой из углеводородного сырья. Разработка путей эффективного использования углеводородных ресурсов за счет увеличения доли перерабатывающего сектора будет способствовать удовлетворению внутренних потребностей в продукции нефтепереработки и нефтехимии, меньшей уязвимости экономики страны от уровня мировых цен на углеводородное сырье. Изложенное в статье может служить обоснованием для развития в Казахстане новых отраслей промышленности перерабатывающего профиля, основой технологических процессов которых должно стать комплексное использование углеводородных ресурсов с учетом их физико-химических характеристик, что будет способствовать повышению эффективности и конкурентоспособности новых товаров и услуг.
КОЛЬЦЕВАЯ СТРУКТУРА В НАДСОЛЕВЫХ ОТЛОЖЕНИЯХ ПРИКАСПИЙСКОЙ ВПАДИНЫ
Authors:   директор, https://orcid.org/0000-0001-6638-3153, Гольмшток А.А. , Матлошинский Н.Г. ,   технический директор, кандидат геол.-мин. наук, https://orcid.org/0000-0001- 8028-782X, Надиров Н.К. ,   первый вице-президент Национальной инженерной академии РК, академик АН Казахской ССР, Почетный нефтяник СССР, https://orcid.org/0000-0002- 6315-9954, Суяркова Н.А. ,   главный геофизик, https://orcid.org/0000-0003- 3306-6930
Published: February 2022

В меловых отложениях надсолевого комплекса Прикаспийской впадины в сейсмических данных выявлена кольцевая структура, которая представляет несомненный интерес в плане понимания строения комплекса в целом. Анализ показывает, что данная структура не очень соответствует формированию ударного метеоритного кратера. Она больше подходит под объект, образованный солянокупольной тектоникой, хотя сам по себе достаточно необычный. Дальнейшее изучение структуры может пролить свет на особенности строения надсолевого комплекса для лучшего понимания триады его нефтегазоносности: 1) очаги генерации; 2) пути миграции; 3) области аккумуляции.
РАБОТОСПОСОБНОСТЬ ВИНТОВЫХ НАСОСОВ В ДОБЫЧЕ ВЫСОКОВЯЗКИХ НЕФТЕЙ КАЗАХСТАНА
Authors:   доктор технических наук, профессор, академик НИА РК,  индустриальный руководитель, https://orcid.org/0000-0002-1983- 457X, Ахметов, С. М. , Буканова А. С. ,   кандидат технических наук, директор института нефтехимической инженерии и экологии, https://orcid.org/0000-0001- 6504-2875, Ахметов Н. М. ,   доктор технических наук, доцент, декан нефтегазового факультета, https://orcid.org/0000-0002- 1613-7701, Зайдемова Ж. К. ,   кандидат технических наук, доцент, заместитель декана нефтегазового факультета, https://orcid.org/0000-0002- 6628-024X
Published: February 2022

Авторы статьи отмечают чрезвычайную важность на современном этапе добычу высоковязкой и сверхвысоковязкой нефти, а также природных битумов и гидратов. Это обусловлено тем, что Казахстан располагает огромным традиционным запасом высоковязкой нефти в действующих месторождениях, а также разведанным запасом тяжелых нефтей в осваиваемых трудноизвлекаемых залежах. Среди технических средств для их добычи огромная роль отводится винтовым насосам, принцип работы которых более приспособлены чем другие средства к извлечению вязкой среды из скважин, осложненных проявлением механических примесей (песок, соль и др.). В связи с вышеизложенным, в данной работе авторами рассматривается проблема обеспечения работоспособности установок винтовых насосов с наземным приводом (УВНП). На основе предложенной им комплексной программы мероприятий изучены наиболее частые причины выходов из строя рабочих элементов УВНП. Разработанная авторами модель динамической системы соединительная муфта – штанга, позволяет спрогнозировать оптимальные их параметры на стадии проектирования (создания) УВНП. Это в свою очередь позволяет исключить основные виды их отказа, которые являются причинами других последующих видов поломок.
STABILITY OF PHYTOCENOSES IN OIL-PRODUCING REGIONS
Authors:   PhD, Associate Professor of the Department of UNESCO for sustainable development, https://orcid.org/0000-0002- 3454-8889, Doszhanov Y. , Tileuberdi Y. ,   PhD, Associate Professor of the Department of Chemical Physics and Materials Science, https://orcid.org/0000-0001- 9733-5015, Kudaibergenov K. ,   PhD., Senior Lecturer of the Department of Chemical Physics and Materials Science, https://orcid.org/0000-0002- 5444-0314, Nurtileu A. ,   Master’s Degree Student of the Department of UNESCO for sustainable development, https://orcid.org/0000-0003- 4291-7469
Published: February 2022

The only real way to deal with the consequences of oil and oil products spills is a complex of works, including mechanical or physico-chemical removal of spilled oil products with subsequent purification of the remaining oil in the soil by biological methods using phytoremediation with oil-oxidizing plants. One of the stages of the study of hydrocarbon-oxidizing plants before their introduction into the environment for remediation of contaminated sites is the study of the process of degradation of pollutants in model soil systems. Model experiments on cleaning and restoration of soils after their contamination with oil and oil products by plant biomass were studied. Oil samples from the Tengiz field were taken. During the experiments, the indicator of the total amount of biomass, as well as the oil content in the soil, was controlled. To correctly assess the participation of plant raw materials in the destruction of oil, experiments were carried out using non-sterile soils. Among other plant cultures, the most degrading activity was shown by plant cultures of the genus Fabaceae, which led to an increase in growth in the soil environment by an average of 7 sm in 20 days. This is observed for plants with oil concentrations of 3, 6 and 9 g. The results of physical and chemical analyses of phytoremediation products of crude oil, petroleum products and individual aromatic hydrocarbons can be important in microbiological and chemical studies with geobotanical indicators that allow analyzing the mechanism of action of biomass in the process of phytoremediation in the disposal of oil waste that pollutes the environment. The available data on the effect of petroleum hydrocarbons on plants are very contradictory. The species diversity of plants capable of growing on oil-contaminated soils has not been sufficiently studied. Knowledge of the degree of resistance of plants to hydrocarbon pollution is necessary to address issues related, on the one hand, to the possibility of their cultivation on contaminated soil, and on the other - to use for the restoration of disturbed soil fertility. In connection with the above, it is of great scientific and practical interest to study the effect of various doses of oil on changes in vegetation cover, soil properties and assessment of their phytotoxicity, which together determines the relevance of the stated topic.
FROM NATURAL GAS TO GREEN HYDROGEN
Authors:   Associate Professor PhD. Eng. at Petroleum-Gas, vice-president of A.G.I.R. Prahova branch, TUDORACHE V. , MINESCU M. ,   Professor PhD. Eng. at Petroleum-Gas University of Ploiesti, President of the Senate Petroleum-Gas University of Ploiesti, and Member of the Academy for Technical Sciences of Romania, ILIAS N. ,   Professor PhD. Eng. Member of the Academy for Technical Sciences of Romania – President of the Section Oil, Mine and Geonomy Engineering, OFFENBERG I. ,   Associate Professor PhD. Eng. at University of Petrosani, Member of Administration Board, SNGN Romgaz-FIGN Depogaz Ploiești
Published: February 2022

Since hydrogen usually exists on Earth as part of a compound, it has to be synthesized in specific processes in order to be used as a product or energy source. This can be achieved by different technical methods, and various primary energy sources, – both fossil and renewable fuels, in solid, liquid or gaseous form, – can be used in these technical production processes. Hydrogen has only a very low volumetric energy density, which means that it has to be compressed for storage and transportation purposes. The most important commercial storage method, – especially for end users, – is the storage of hydrogen as a compressed gas. A higher storage density can be achieved by hydrogen liquefaction. Novel materials-based storage media (metal hydrides, liquids or sorbents) are still at the research and development stage. The storage of hydrogen (for example, to compression or liquefaction) requires energy; work is, in present, on more efficient storage methods. Unlike electricity, hydrogen can be successfully stored in large amounts for extended periods of time. For example, in long-term underground storage facilities hydrogen can play an important role as a buffer store for electricity from surplus provided by renewable energies. At present, pure hydrogen is generally transported by lorry in pressurize gas containers, and in some cases also in cryogenic liquid tanks. Moreover, local/regional hydrogen pipeline networks are available in some locations. Another solution for storage and transportation are Liquid Organic Hydrogen Carriers (LOHC) that can use long pipe networks and ships. In the near future, the natural gas supply infrastructure or oil (transportation pipelines and underground storage facilities) could also be used, in specific conditions, for the storage and transportation of pure or blended hydrogen with methane. This could be essential for transition because most important primary energy source for hydrogen production currently is natural gas, at 71%, followed by oil, coal and electricity (as a secondary energy resource). Steam reforming (from natural gas) is the most commonly used method for hydrogen production. In this new light, the article explores the trend and prospects for hydrogen, presented in the literature, as a source of energy competing with gas and oil resources in the global energy system of the future.
Access to and Repayment of Agricultural Credit in the Face of COVID 19
Authors: Shillie Peter Ngek , Bime Mary-Juliet Egwu , Balgah Roland Azibo , Wiysherinyuy Miranda Lambiv
Published: February 2022

Purpose: Gender differences in access to and repayment of loans seem to be the reason behind the persistent subsistence and small-scale nature of most agribusinesses in Cameroon. This study examines access to and repayment of agricultural credit in the face of COVID 19 in the West Region of Cameroon building on evidence from selected microfinance institutions in the West Region of Cameroon. Specifically, the study mirrors gender differences in microfinance loan disbursements and repayments, determinants of loan repayment, and constraints to loan access and loan repayment during the period of COVID 19.
Method: The purposive sampling technique was employed to select 100 farmers who had access to agricultural credit in three villages in the West Region of Cameroon. A pre-tested questionnaire was used for primary data collection and secondary data was collected from microfinance institutions and the internet. Collected data were analyzed employing tables, frequencies, t-test, and regression analysis.
Results: Findings indicated that there was a positive insignificant difference in the amount of credit received and repaid by male farmers than that of the female farmers. The male and female have equal access to credit and the same repayment capacities (R2 = 0.55 or 55%). Loan repayment was statistically and significantly determined by loan amount, interest rate, and time lag for repayment at the 5% significance level. Serious constraints to loan access were lack of sensitization, lack of collateral security, and illiteracy while major constraints to loan repayment were family commitment, price fluctuation, crop failure, high cost of production, and interest payment.
Implications: Increasing the ceiling for loan amount approved for farmers and curbing excessive bureaucratic procedures would ensure minimal diversion of the loans, higher income for the farmers, and hence better repayment rates.
Originality: The distinctiveness of this study is viewed from the context of the COVID 19 pandemic within which data was collected, thus capturing how the pandemic situation played a role in access to and repayment of agricultural loans from the perspective of gender.
Impact of Bank Specific and Macroeconomic Determinants on Banks Liquidity
Authors: Tasnova Nishat
Published: February 2022

Purpose This study examines the influences of bank-specific and macroeconomic determinants on liquidity on 29 listed commercial banks of Bangladesh.
Methods To analyze the relationship, this study performs Pooled Ordinary Least Square method, fixed and random effect estimates, and implemented GLS random effect method on strongly balanced panel dataset over 2014 to 2019. Capital adequacy, nonperforming loans, and profitability are considered bank-specific factors while GDP, Monetary policy interest rate, and Interest rate spread are considered the macroeconomic factors.
Results Business cycle and monetary policy interest rate inversely affected bank liquidity. Contrary, bank liquidity has a positive association with profitability, nonperforming loans, capital adequacy, and interest rate spread. According to the findings, capital adequacy and business cycle have a significant impact on liquidity.
Implications This study has significant implications for bankers, consumers, and policymakers. The banking sector of Bangladesh will highly be benefited from this research as this paper critically analyzes the determinants of banks' liquidity risk. This research will help the banks and other financial institutions to understand the effect of capital adequacy, nonperforming loans on liquidity in the Bangladeshi context. This study infers that banks need to monitor the factors cautiously to avoid the liquidity crisis in the future.
Originality There are a few studies that examine these determinants with liquidity in the Bangladeshi context. This remarks the significance of the present paper as this study put an attempt to analyze bank-specific and macroeconomic determinants with bank liquidity in the Bangladeshi context has been conducted within a limited scope.
THE EFFECT OF SERVICE QUALITY ON CUSTOMER SATISFACTION IN DIGITAL AGE: CUSTOMER SATISFACTION BASED EXAMINATION OF DIGITAL CRM
Authors: Demirel Demokaan
Published: February 2022

This study examines how customer-centered management systems contribute to CRM through the use of digital services. The article presents empirical evidence from an online survey of 405 people using digital services living Kocaeli province in Turkey and modelling a system of structural equations using partial least squares. 405 people have been selected by a random sampling method to ensure objectivity and scientific neutrality. Among the 405 people, 350 were found to have filled out the questionnaire completely. The study also examined the relationship between the dimensions of service quality and customer satisfaction. The results confirm that most of the dimensions of digital service quality favour the development of customer satisfaction capabilities and both the relationship the independent variables and trust, Enthusiasm, and sensitivity dimensions and customer satisfaction are positive. High customer satisfaction with digital services can lead to superior firm performance; however, companies should also gain credibility for customers and should design their products according to customer preferences.
X-Ray-induced Diffusion and Mixing in Layered Astrophysical Ices
Authors: Jiménez-Escobar Antonio , Ciaravella Angela , Cecchi-Pestellini Cesare , Muñoz Caro Guillermo M. , Huang Chao-Hui , Sie Ni-En , Chen Yu-Jung
Published: February 2022

Ice in cold cosmic environments is expected to be organized in a bilayered structure of polar and apolar components. The initial water-rich layer is embedded in an icy CO envelope, which provides the feedstock for methanol formation through hydrogenation. These two components are thought to be physically segregated, unless an increase in temperature favors mobility and reactivity within the ice. We present new and robust evidence of X-ray-induced diffusion within interstellar ice analogues at very low temperatures, leading to an efficient mixing of the molecular content of the ice. The results of our study have two main implications. First, molecular mixing enhances chemical reactions from which complex organic species, including many of prebiotic interest, are formed. Second, diffusion drives the desorption of species that would otherwise remain buried near the surface of dust, thus enhancing their abundances in the gas, where they can be detected in the radio-wave domain. Such a scenario may have implications for the chemical history of ices in protoplanetary disks, in particular in the early stages of their life.
The Model of Acute Obstructive Pyelonephritis for Studying Bacterial Translocation of E. coli from Gastroenteric Tract
Authors: Turgunov Yermek , Shakeyev Kairat , Sharapatov Yerzhan , Lavrinenko Alyona , Pronkin Evgeny
Published: February 2022

BACKGROUND: The role of intestinal microflora translocation in the development of obstructive pyelonephritis has not been sufficiently studied. The urgency to develop a new model of acute obstructive pyelonephritis is due to the search for characteristics that are able to meet the criteria for reproducibility of microbial translocation from the intestine, the reversibility of the stages of the inflammatory process with further observation in the dynamics of development. AIM: The aim of the given research is to develop a model of acute obstructive pyelonephritis to study the pathogenetic role of bacterial translocation of Escherichia coli (hereinafter E. coli) from the gastrointestinal tract (GIT). METHODS: Twenty outbred male rabbits aged 3 months and weighing 3.0 ± 0.5 kg were used for the research. All the animals were randomly divided into two groups: Experimental (n = 10) and control (n = 10). In the experimental group, obstructive pyelonephritis was modeled by ligating the external opening of the urethra and injecting an antibiotic-resistant E. coli strain into the GIT using enteric capsules. In the control group, the strain was administered in the same way, but without forming a model of obstructive pyelonephritis. The animals were withdrawn from the experiment on the 3rd day by air embolism under general anesthesia. In both groups, the sizes of the kidney, pelvis, ureter, and the number of leukocytes in urine were assessed. RESULTS: In the experimental group, there was an increase in the size of the kidney, pelvis, as well as ureter with some pronounced leukocyturia observed, which indicates the development of obstructive pyelonephritis. In the control group, only one animal had leukocyturia. The statistically significant differences were revealed between the groups in all studied parameters. CONCLUSION: The results of this research demonstrated that the proposed model provided an opportunity to study the role of intestinal translocation of microorganisms in the development of acute obstructive pyelonephritis.
Posterior Tibial Tendon Transfer for Central Foot Drop: A Case Report
Authors: Butarbutar John , Phandu Mirna , Siahaan Lasa Dhakka , Suvarly Prettysia
Published: February 2022

INTRODUCTION: Peripheral causes of foot drop are widely known. However, causes stemming from the central nervous system are rare. Posterior tibial tendon (PTT) transfer has been widely used for treating peripheral causes of foot drop but not central causes. We report a case of central foot drop (CFD) that was corrected with PTT transfer.

CASE REPORT: A 68-year-old female presented with progressive weakness and numbness of both feet due to old compression fracture of the 12th thoracic spine. She also had Parkinson disease with gait rigidity. The patient was diagnosed with central foot drop. The left foot PTT transfer was done through the interosseous membrane and fixed to the navicular bone with an interference screw. Three months after the procedure, there is an improvement on the gait, and the foot drop is corrected. PTT transfer has a good outcome in peripheral foot drop. However, it is still questionable for the CFD case. In our case, PTT transfer was considered because it is less invasive, and tenodesis or ankle fusion still could be performed later if the PTT transfer outcome is not favorable.

CONCLUSION: PTT transfer is a possible option to correct CFD. It is less invasive and has a good outcome.
Wet Cupping’s Effect on Nitric Oxide Levels in Hypertensive Patients
Authors: Desfika Sharlini , Ichwan Muhammad , Ardinata Dedi
Published: February 2022

BACKGROUND: Wet cupping is a non-pharmacological therapy that has been shown to assist hypertensive patients with blood pressure reduction. However, the underlying mechanisms by which wet-cupping lowers blood pressure are currently unknown. More scientific investigation is necessary to explain the mechanism by which wet cupping lowers blood pressure, particularly the role of nitric oxide (NO).

AIM: The study aimed to show the effect of wet cupping on NO levels in hypertensive patients.

METHODS: A pre-experimental study using a single group pre-test and post-test design to monitor changes in blood NO levels and blood pressure in 45 hypertensive patients in Medan after 4 weeks of wet cupping therapy. The patients’ blood NO levels, as well as their systolic and diastolic blood pressures (SBP and DBP), were measured before and after 4 weeks of wet cupping.

RESULTS: After 4 weeks of wet cupping, blood NO levels significantly increased (0.00704 mol/mL, p=0.039), while SBP and DBP levels significantly decreased (12.644 mmHg and 7.111 mmHg, respectively, p<0.001). However, there was no correlation between increased blood NO levels and reductions in SBP and DBP (p=0.468 and p=0.299, respectively).

CONCLUSION: This study found that after 4 weeks of cupping therapy, the decrease in SBP and DBP was not accompanied by an increase in blood NO levels.
Discovery of frogs of the Stumpffia hara species group (Microhylidae, Cophylinae) on Montagne d’Ambre in northern Madagascar, with description of a new species
Authors: Rakotoarison Andolalao , Glaw Frank , Rasolonjatovo Safidy M. , Razafindraibe Jary H. , Vences Miguel , Scherz Mark D.
Published: February 2022

The stump-toed frogs of the Madagascar-endemic genusStumpffiaare mostly diminutive in size, but there is one group of comparatively large frogs within the genus, which we herein refer to as theStumpffia haraspecies group. Each of the four known members of this species group is endemic to a single location of deciduous dry forest with exposed karstic limestone rock. Here, we report on the discovery of members of this species group on Montagne d’Ambre, a rainforest-covered extinct volcano in the North of Madagascar that has a richStumpffiafauna but has been thought to lack members of theS. haraspecies group until now. We found two members of the species group, one at the peak, and one in transitional and dry deciduous forest on the west and northern slopes of the mountain. The high-elevation species is new to science, and we here describe it asStumpffia bishopisp. nov.It occupies a highly distinct position in the phylogeny of these frogs, characterized by ≥ 9.8% uncorrected pairwise distance from all other nominalStumpffiain a fragment of the mitochondrial 16S rRNA gene. It is also the smallest of the members of theS. haraspecies group. Our genetic results show that the low-elevation species isStumpffia megsoni, constituting a range expansion of that species and considerably expanding our understanding of its morphology and ecology. We report its advertisement call for the first time. Our results highlight the importance of continued surveys of even well-sampled localities, with special attention on the high elevation sites of northern massifs and collection of voucher specimens, and how much there still remains to understand about even the largest of Madagascar’s small frogs.
Two new Rinodina lichens from South Korea, with an updated key to the species of Rinodina in the far eastern Asia
Authors: Lee Beeyoung Gun , Hur Jae-Seoun
Published: February 2022

Rinodina salicis Lee & Hur and Rinodina zeorina Lee & Hur are described as new lichen-forming fungi from forested wetlands or a humid forest in South Korea. Rinodina salicis is distinguishable from Rinodina excrescens Vain., the most similar species, by its olive-gray thallus with smaller areoles without having blastidia, contiguous apothecia, non-pruinose discs, paler disc color, wider ascospores in the Pachysporaria-type II, and the absence of secondary metabolites. Rinodina zeorina differs from Rinodina hypobadia Sheard by areolate and brownish thallus, non-pruinose apothecia, colorless and wider parathecium, narrower paraphyses with non-pigmented and unswollen tips, longer and narrower ascospores with angular to globose lumina, and the absence of pannarin. Molecular analyses employing internal transcribed spacer (ITS) sequences strongly support the two new species to be unique in the genus Rinodina. An updated key is provided to assist in the identification of all 63 taxa in Rinodina of the far eastern Asia.
Proposition d’un modèle de traduction comptable et financière du capital humain
Authors: Méreaux Jean-Paul , Feige Jimmy
Published: February 2022

En comptabilité, le capital humain est évalué de manière restrictive en raison de difficultés pratiques, juridiques mais surtout conceptuelles et idéologiques. Au-delà de la réflexion soulevée par les chercheurs quant à sa vision strictement comptable, des approches et des outils ont été développés. Dans cet article, un modèle de comptabilité-RH d’évaluation du capital humain - qui articule masse salariale et des indices de connaissances et de compétences - est discuté au regard des pistes possibles quant à sa traduction comptable. Une solution envisageable serait de faire apparaître la différence entre la masse salariale de base et cette masse salariale corrigée à l’aide des différents indices ouvrant ainsi la voie à une reconnaissance comptable du capital humain.
L’autisme au sein des troubles du neurodéveloppement
Authors: Trouvé Jean-Noël
Published: February 2022

En France, les textes officiels les plus récents définissant l’autisme au sein du neurodéveloppement reflètent une orientation presque uniquement fonctionnelle. Nous essayons de montrer la pertinence de maintenir une approche plus dualiste, intégrant les origines fonctionnelles mais aussi la construction subjective et les stratégies adaptatives des personnes avec autisme.
Entre industrie et politique, Pechiney sous la présidence de Jean Gandois, 1986-1995
Authors: Grinberg Ivan , Mioche Philippe
Published: February 2022

Jean Gandois, grande figure de l’industrie française, a dirigé des entreprises majeures de la sidérurgie et de l’aluminium. Dans un entretien réalisé le 1 er  juillet 2014 par Ivan Grinberg et Philippe Mioche, il se prêtait à une comparaison des modèles de développement et du management dans les entreprises de l’aluminium et de l’acier 1 . Au cours de cette rencontre, Jean Gandois est revenu sur ses années de présidence de Pechiney, de 1986 à 1995. Le document que nous publions ici en reprend les principaux développements 2 . La mise en forme réalisée sous la responsabilité des auteurs est centrée sur les propos de Jean Gandois.
Péculat et concussion : la corruption des officiers à l’époque moderne (XVI e -XVIII e siècle)
Authors: Dounot Cyrille
Published: February 2022

La répression de la corruption chez les agents du roi remonte au règne de François I er  qui établit les crimes de concussion et de péculat, commis par les financiers, les juges et autres officiers peu respectueux des biens privés comme de l’argent public. La particularité de ces crimes est marquée par une procédure spéciale, où la preuve est plus facile à apporter. Les peines, extrêmement variables, vont de l’amende et de la restitution des sommes volées à la mort, en passant par la perte de l’office ou les galères. Cependant, les juges ont tendance à adoucir le sort des péculateurs et des concussionnaires, ce qui entraîne souvent un dessaisissement de la justice ordinaire pour une justice d’exception, plus prompte à juger de la corruption des officiers.
Entre pluralité des espaces de débat et singularité des ordres du jour : la carrière sinueuse du gaz de schiste
Authors: Chailleux Sébastien , Zittoun Philippe
Published: February 2022

Entre décembre 2010 et avril 2011, la multiplication des mobilisations autour du gaz de schiste contribue à inscrire ce qui va devenir un problème environnemental majeur d’abord à l’agenda médiatique puis à l’agenda gouvernemental, poussant le gouvernement à faire voter une loi prônant l’interdiction de la fracturation hydraulique nécessaire à l’exploration et l’exploitation de ces hydrocarbures. Cette lecture linéaire rend cependant insuffisamment compte de ce que l’observation empirique attentive de phénomènes plus discrets donne à voir : une trajectoire chaotique du sujet durant plus d’un an dans de nombreux micro-espaces de débat morcelés et souvent conflictuels. Cet article propose ainsi d’étudier les dynamiques singulières d’inscription à l’ordre du jour et de traitement du gaz de schiste dans une pluralité d’espaces de débat, mieux à même de refléter le fonctionnement fragmenté et agonistique des systèmes bureaucratiques, médiatiques, industriels et militants. Il montre, d’une part, comment la diversité de ces dynamiques d’inscription à l’ordre du jour contribue à favoriser une carrière chaotique du sujet, alternant confinement et visibilisation, domestication et dramatisation définitionnelles, appropriation et contournement et, d’autre part, comment, au cours de cette période, se forment les énoncés et leurs coalitions qui s’affronteront pendant la tempête médiatique du début d’année 2011.
Des ateliers de médiations socio-éducatives dans les formations en travail social
Authors: Mikanga Emmanuelle , Alcaraz Anaïs
Published: February 2022

Emmanuelle Mikanga et Anaïs Alcaraz présentent un module de formation interfilière ( ass, es, ets, me, tisf ), les ateliers de médiations socio--éducatives, mis en place au sein d’une école en travail social. Si les objectifs, les enjeux et la portée concrète de ces ateliers sont abordés, elles proposent de s’interroger sur la disparition progressive des espaces de formation communs entre filières de formation de niveaux différents. Le sens et la valeur d’un tel module auprès d’étudiants en travail social, se destinant à partager le quotidien d’enfants, d’adolescents et d’adultes momentanément ou durablement en difficulté dans leur vie de sujet, sont mis en avant.
La notion de santé mentale comme nouveau dispositif
Authors: Dureuil Simon
Published: February 2022

Dans cet article, il va s’agir de revenir sur la notion de santé mentale et les implications que celle-ci apporte dans la prise en charge et la considération du malade mental dans la société. Et même, nous montrerons comment l’objectif de « santé mentale » parfaite vient conditionner l’expérience de tout sujet, en tant qu’elle se constitue comme dispositif, au sens dégagé par Foucault et repris par Agamben.
Heat input effects on mechanical constraints and microstructural constituents of MAG and laser 316L austenitic stainless-steel welded joints
Authors: Bayock Francois Njock ,   Department of Mechanical Engineering, ENSET Douala, University of Douala, P.O. Box: 1872, Douala, Cameroon, Kah Paul , Tony Kibong Marius ,   Department of Engineering Science, University West, Gustava Melius gata 2 S-461 32 Trollhättan, Sweden,   Laboratory of Technologies and Applied Sciences, University Institute of Technology, University of Douala, PO Box 8698 Douala, Cameroon
Published: February 2022

This study aims to investigate the optimum heat input required to overcome the negative consequence of the thermal properties of austenitic stainless steel to produce welded joints free of distortion. An experimental investigation using robotic-MAG and fiber-laser welding processes has been used in other to investigate angular, longitudinal distortion (bending), and microstructural constituents in the heat-affected zone (HAZ) of different welded joints. Ten 316L steel, butt-joints were made by different travel 25 speeds at the range of (7–11 mm/s). A highly sensitive 2D-laser device has been used to measure the distortion then, a microstructural investigation was done using an optical micrograph, Scanning Electron Microscopy (SEM) coupled with the Electron Dispersive Spectrometer (EDS). The laser-fiber welding process results indicated optimum parameters to prevent distortion when applying welding speed of 2.2 m/min, the power source of 2.5 kW, and the focal position of 3 mm. In MAG welding, test results revealed an increase of longitudinal distortion (bending) from 1.2 mm to 3.6 mm when raising the heat input from 0.3 to 0.472 kJ/mm. When increases welding speed (11 mm/s), angular distortion was approximately 2.1° on the left side and 1.7° on the right side. Microstructural investigations revealed the proportionality between heat input and carbides formations on the grain boundaries of HAZ. They were also the formation of etching pores and some ferrite content (10%) on the weld center.
A sparse deep learning model for privacy attack on remote sensing images
Authors: Wang Eric Ke ,   Harbin Institute of Technology, Shenzhen, 518055, China, Zhe Nie , Li Yueping , Liang Zuodong , Zhang Xun , Yu Juntao , Ye Yunming ,   School of Computer Engineering, Shenzhen Polytechnic, Shenzhen, 518055, China
Published: February 2022

Deep learning tools have been a new way for privacy attacks on remote sensing images. However, since labeled data of privacy objects in remote sensing images are less, the samples for training are commonly small. Besides, traditional deep neural networks have a huge amount of parameters which leads to over complexity of models and have a great heavy of computation. They are not suitable for small sample image classification task. A sparse method for deep neural network is proposed to reduce the complexity of deep learning model with small samples. A singular value decomposition algorithm is employed to reduce the dimensions of the output feature map of the upper convolution layers, which can alleviate the input burden of the current convolution layer, and decrease a large number of parameters of the deep neural networks, and then restrain the number of redundant or similar feature maps generated by the over-complete schemes in deep learning. Experiments with two remote sensing image data sets UCMLU and WHURS show that the image classification accuracy with our sparse model is better than the plain model, which is improving the accuracy by 3%, besides, its convergence speed is faster.
Binary Self-Adaptive Salp Swarm Optimization-Based Dynamic Load Balancing in Cloud Computing
Authors: Parida Bivasa Ranjan , Rath Amiya Kumar , Mohapatra Hitesh
Published: February 2022

In the recent era of cloud computing, the huge demand for virtual resource provisioning requires mitigating the challenges of uniform load distribution as well as efficient resource utilization among the virtual machines in cloud datacenters. Salp swarm optimization is one of the simplest, yet efficient metaheuristic techniques to balance the load among the VMs. The proposed methodology has incorporated self-adaptive procedures to deal with the unpredictable population of the tasks being executed in cloud datacenters. Moreover, a sigmoid transfer function has been integrated to solve the discrete problem of tasks assigned to the appropriate VMs. Thus, the proposed algorithm binary self-adaptive salp swarm optimization has been simulated and compared with some of the recent metaheuristic approaches, like BSO, MPSO, and SSO for conflicting scheduling quality of service parameters. It has been observed from the result analysis that the proposed algorithm outperforms in terms of makespan, response time, and degree of load imbalance while maximizing the resource utilization.
Real-Time Anomaly Detection Using Facebook Prophet
Authors: Nithish T.  , Bharamagoudar Geeta R. , Karibasappa K. G.  , Totad Shashikumar G.
Published: February 2022

With sensors percolating through everyday living, it may be toted that there is an enormous increase in the availability of real-time streaming and time series data. We also see an exponential increase in number of industry applications with sensors driven by IoT and connected with data sources that change over time. This time-series data presents many technical challenges, opportunities, and threats to industries. Thus, streaming analytics to model an unsupervised machine learning system for detecting unusual/anomalous behavior in real-time must be prominently addressed. In this paper, the authors propose a real-time abnormality detection model using a Facebook prophet that addresses issues related to the improper Facebook collection of data, further leading to faulty analysis and wrong results. The proposed unsupervised model detects abnormalities in the data captured through customer order by considering day and date as constraints. The proposed model is found to be even more efficient in RMSE score. The proposed model delivered enhanced performance compared to other traditional approaches.
Bandgap Modulation of the C2N-h2D Nanomaterials under Elastic Strains
Authors: Zhao Jian , Song Qian Qian , Wei Qiang , Chen Jun , Xiao Jing , Ma Jian Ling , Ma Sheng Qian
Published: February 2022

Since the C2N-h2D crystal was efficiently synthesized, this study aims to investigate bandgap modulation of nanoribbons and nanotubes. Appling Density Functional Theory (DFT), the band-gap modulation of C2N-h2D nanomaterials is researched under elastic strains. The results of the current study indicate that the band gap of C2N-h2D nanoribbons and nanotubes can be tuned along two directions, namely, stretching or compressing nanoribbons and nanotubes when ɛ is changed from -10% to 10% in zigzag and armchair, respectively. This study also finds that the band gap of the C2N-h2D nanoribbons and nanotubes change with increase of widths or the radii of nanotubes. Therefore, the great potential applications of the C2N-h2D nanomaterials have been predicted in strain sensor and optical electronics at nanoscale.
Optimized Lithium-Indium Chloride Solid Electrolyte for High Energy All-Solid-State Batteries
Authors: Xu Guo Feng
Published: February 2022

All-solid-state battery is a promising next-generation energy storage and conversion device and the development of solid electrolyte is very important as the core of all solid-state batteries. Herein lithium-indium chloride solid electrolyte is successfully prepared and the ionic conductivity is increased from 1.07 to 1.41 mS/cm by optimizing the vacuum parameter in the process of preparation. The samples have typical C2/m space group of cubic crystal system, and the vacuum optimized sample has more regular ion arrangement, better crystallinity and fewer lattice defects. The prepared sample is used as the electrolyte layer and the electrolyte part of the composite cathode, and the layered oxide LiNi0.6Co0.2Mn0.2O2 without surface modification was used as the active material. After assembling the cell, the initial discharge specific capacity of the cell was tested to be 157.5mAh/g. In addition, the phase transition of the composite cathode is analyzed under different charge and discharge state. It is found that the use of the lithium-indium chloride solid electrolyte in composite electrode does not affect the REDOX reaction of LiNi0.6Co0.2Mn0.2O2 layered oxide, indicating that the electrolyte material is stable and compatible with layered cathode material, showing its excellent application prospect.
A review of scrotal temperature regulation and its importance for male fertility
Authors: Nanayakkara S. D. I. , Gihan M. C. , Nanayakkara P. S. K.
Published: February 2022

Male fertility is a very important but often neglected area in medical practice. Compared to what is available on female subfertility, there is a dearth in research on male fertility. Fertility in male depends on the normally functioning hypothalamopituitary gonadal axis, normal testis and the environment necessary for viable, motile sperm production. The production of healthy germ cells require a temperature which is slightly below the core body temperature and there are several temperature regulatory mechanisms in humans that ensure the maintenance of the scrotal temperature several degrees lower. The aim of the present review is to synthesise and summarise the literature available on scrotal temperature regulation in the healthy male and to recapitulate the disease conditions, environmental, occupational and lifestyle factors that affects scrotal temperature and thus male fertility.
Patients with ovarian cancer – knowledge and awareness of their disease, treatment, and possible complications
Authors: De Silva R. S. , Dinusha A. K. , Kottegoda G. J. D. E. , Kannangara D. E. , Premaratne S.
Published: February 2022

Introduction: Ovarian cancer is one of the most common cancers in Sri Lankan women and the third most common cancer among them. Health care workers as a team should be involved in patient education and counseling which must be customized according to the medical, psychological, social, financial, and spiritual background of the patient concerned. Objectives: To assess patient awareness and knowledge about ovarian cancer, its treatment, and possible complications. To evaluate patients’ concerns about how they were educated and counseled. Identify shortcomings and drawbacks and suggest measures to improve patient counseling and education. Method: A prospective cross-sectional study was done with 178 patients to evaluate their knowledge about their disease, treatment, and possible complications of ovarian cancer. Assessment was done through an interviewer administered questionnaire. Assessment of the stage of the disease at diagnosis was done by comparing patient’s description with patient’s notes. Results: 112 (63%) patients had satisfactory knowledge of the correct diagnosis of their disease whereas 56 (31%) patients had poor knowledge. 133 (74%) patients had good knowledge about the stage of the disease whereas 35 (20%) had poor knowledge. Concerning the treatment options, 133 (74%) had good knowledge but 33 (19%) patients had poor knowledge. Regarding the possible complications of the disease and possible complications of treatment 97 (54%) and 69 (39%) patients had good knowledge respectively, whereas 82 (46%) and 109 (61%) had poor knowledge respectively. 154 (87%) patients were satisfied with the education and counseling they had and 24 (13%) were unhappy. Conclusion: Patient knowledge about their disease, treatment, and complications is not satisfactory and needs improvement. A counseling model needs to be developed and audited regularly.