bluuebunny/crossref_metadata_2025 huggingface dataset:
ADAPTIVE LEADERSHIP AND ITS ROLE IN KNOWLEDGE SHARING
Authors: Mohammed Raeda Malallah , Abid Al-Zeid Prof. Nadhum Jawad
Published: April 2022

The current research aims to diagnose the extent of interest in adaptive leadership in Asiacell and its role in sharing knowledge In view of the importance of variables and their ability to adopt them, in light of the current stillness and the limited search for them as tools for professional planners in achieving their organizational excellence at the level of the Iraqi environment, as the intellectual dilemma and the field problem were launched mainly from the lack of studies, so that the current research adopts the descriptive analytical method based on the questionnaire as a survey tool for Data and information related to the research changes, its dimensions and paragraphs, as well as its support with structured interviews to diagnose the research problem, to analyze the primary data through descriptive statistics (arithmetic mean, standard deviation, coefficient of variation, percentages, frequencies) and testing hypotheses using appropriate statistical methods for inferential statistical analysis (factor). Pearson correlation, simple linear regression, multiple regression, path analysis) and checking data quality through (normal distribution, confirmatory factor analysis, structural modeling method, and exploratory factor analysis), after collecting data from (358) observations from the company’s leaders, as they were A random sample of a population that includes (4,300) company leaders from employees of the Asia Company in Iraq, and The current research has dealt with a number of statistical methods through (SPSS V.26) and (AMOS V.25), and the statistical analysis concluded the most prominent result represented by the effect of adaptive leadership on knowledge sharing
Оценка состояния репродуктивной функции женщин, пeрeнecшиx хирургический гемостаз
Authors: Балмагамбетова Г.Н. , Аймагамбетова А.С. , Тримова А.Н. , Пак А.Г. , Иванова В.В.
Published: April 2022

Актуальность: При возникновении массивных послеродовых кровотечений или кровотечения в ходе кесарева сечения нередко выполняется экстренная гистерэктомия, которая не только приводит к потере репродуктивной и менструальной функции, но и сопровождается значительными сдвигами в гипoтaлaмo-гипoфизaрнo-яичникoвoй системе, а также неблагоприятно влияет на кровоснабжение, иннервацию, лимфатическую систему малого таза. Поэтому c учётом этих недостатков в последние годы при кровотечениях используются перевязка маточных артерий, наложение гемостатических швов на матку различной модификации и эмболизация маточных сосудов.
Цель исследования – оценить качество жизни и состояние репродуктивной функции у женщин репродуктивного возраста после перенесенного хирургического гемостаза.
Методы: выполнен ретроспективный анализ 563 историй родов, состоявшихся в ГКП на ПХВ «Центр перинатологии и детской кардиохирургии» (Алматы, Казахстан) в 2015-2018 гг., в которых имело место наложение компрессионных и гемостатических швов. Проведено анонимное анкетирование женщин, перенесших хирургический гемостаз.
Результаты: Среди опрошенных 563 женщин, 234 (41,6%) женщины ответили утвердительно на вопрос «Изменилось ли качество Вашей жизни после наложения компрессионных гемостатических швов». Изменения касались нарушений со стороны менструального цикла (15,4%), психоэмоциональных расстройств (16,3%), вторичного бесплодия (15,7%). 329 женщин (58,4 %) не отмечали существенных изменений в качестве жизни.
Заключение: По результатам опроса мы пришли к выводу, что необходимо обязательное информирование женщин o проведённом хирургическом гемостазе, их дальнейшее диспансерное наблюдение и полное клиникo-лaбoрaтoрнoе обследование.
Роль вагинальной микробиоты в сохранении женского репродуктивного здоровья: обзор литературы (часть 1)
Authors: Бахарева И.В.
Published: April 2022

Актуальность: Вагинальная микробиота играет важную роль в защите организма-хозяина от различных гинекологических инфекционных и неинфекционных заболеваний. Появление новых молекулярно-генетических методов диагностики и развитие компьютерных технологий значительно расширяет наши представления о вагинальном микробиоме, а актуальная классификация типов микробных сообществ (community state types, CST) открывает новые перспективы в диагностике и лечении заболеваний женской половой сферы.
Цель исследования – анализ современных данных о состоянии вагинальной микробиоты, типах микробных сообществ и их влиянии на женское репродуктивное здоровье.
Методы: Для обзора (части 1 и 2) был проведен поиск научной литературы за последние 10 лет в PubMed по следующим ключевым словам: «вагинальный микробиом», «вагинальная микробиота», «вагинальный дисбиоз», «бактериальный вагиноз», «бактериальный вагиноз и возраст», «бактериальный вагиноз и этническая принадлежность», «бактериальный вагиноз и стресс», «бактериальный вагиноз и воспалительные заболевания органов малого таза, «бактериальный вагиноз, беременность, преждевременные роды, «пробиотики и вагинальная микробиота», «менопаузальная гормональная терапия и вагинальная микробиота». В статью включены оригинальные статьи и обзоры преимущественно на английском языке из рецензируемых изданий, индексированных в PubMed.
Результаты: Первая часть обзора посвящена описанию CSTs вагинальной микробиоты и факторов риска вагинального дисбиоза.
Вагинальная микрофлора группируется в ограниченное число сообществ, однако структура сообщества постоянно меняется. Определенные CSTs ассоциированы с репродуктивными неудачами и инфекциями, передаваемыми половым путем (ИППП), в то время как сбалансированные CSTs, в которых преобладают виды Lactobacillus, особенно Lactobacillus crispatus, являются оптимальными для здоровья. В статье рассмотрено влияние на нормальный гомеостаз вагинальной микробиоты модифицируемых и немодифицируемых факторов риска, включающих возраст, сексуальное поведение, этническую принадлежность, гигиену.
Заключение: Несмотря на значительный прогресс в характеристике вагинальных CST, многие вопросы остаются неясными: вопросы функционирования микробиома, транскрипции белков микроорганизмов, метаболического взаимодействия членов микробиоты как между собой, так и с организмом-хозяином, а также оптимизации вмешательств, направленных на поддержание или восстановление здорового микробиома.
Лечение по поводу бесплодия с применением ВРТ у мужчин с избыточным весом и ожирением
Authors: Корнеев И.А.
Published: April 2022

Актуальность: Бесплодием страдает примерно 15% супружеских пар, при этом в половине случаев зачатие не наступает в связи с мужским фактором. Еще одной особенно заметной в последние годы проблемой, затрагивающей как мужчин, так и женщин, стал рост распространенности ожирения. Оказалось, что с повышением значения индекса массы тела (ИМТ) у женщин снижается вероятность наступления беременности как при попытках зачатия естественным путем, так и при применении вспомогательных репродуктивных технологий (ВРТ), а большинство мужчин в бесплодных парах также имеют избыточный вес или страдают ожирением.
Цель исследования – оценить результаты обследования и лечения с применением ВРТ в зависимости от показателя ИМТ у мужчин, состоящих в бесплодном браке.
Методы: Данное ретроспективное исследование основано на результатах анализа клинических данных 368 мужчин, обратившихся за лечением по поводу бесплодия в Международный центр репродуктивной медицины (МЦРМ, г. Санкт-Петербург, РФ) в 2019 г.  В ходе обследования у них измеряли рост и вес и рассчитывали ИМТ. Эякулят исследовали в соответствии с руководством ВОЗ 2010 г. Обработку эякулята проводили с использованием градиентной среды (СупраСперм, Origio) по разработанной в МЦРМ методике. Полученные при обследовании и лечении пациентов данные были подвергнуты статистическому анализу.
Результаты: ИМТ мужчин составил 27,4±4,4 кг/м2, большинство имели избыточный вес и ожирение. Эмбрионы хорошего качества получены у 347 (94,2%) пациентов, беременность наступила в 172 (46,7%) случаях. Не выявлено различий показателей эякулята, качества эмбрионов и частоты наступления беременности в зависимости от ИМТ мужчин.
Заключение: У мужчин, состоящих в бесплодном браке, распространено ожирение. ВРТ позволяют успешно преодолевать бесплодие в браке у мужчин с избыточным весом и ожирением.
Rendőrkiválasztás Bajorországban és a különböző német tartományokban
Authors: Mogyoródi Gergely
Published: April 2022

Aim: To extend the literature of the Hungarian Law Enforcement Science by studying and presenting the selection system of the Bavarian and other German territories.Methodology: The research was performed through collecting and analysing the English and German open sources and the relevant literature. On the other hand, a written structured interview with a Bavarian practitioner was performed, as well.Findings: The conclusion of the article is that the structure of police selection in Bavaria and in other German territories are based on similar principles, while the territorial particularities depending on different needs (e.g. duties and hiring) are taken into account.Value: The findings of this paper could provide knowledge for those specialists in Hungary who are responsible for this area. On the other hand, it can be used as a basis for deeper examinations. The findings can be compared with other countries’ practices, as well.
A körzeti megbízotti szolgálat története 2. A kezdetektől a rendszerváltozásig
Authors: Tihanyi Miklós , Papp Dávid
Published: April 2022

Aim: In addition to presenting the first neighbourhood police officers’ regulation, the authors of the work undertake to process and describe the main changes and events of the 60s, 70s and 80s concerning the neighbourhood police officers’ service. In addition, it is important to adequately present the spirit of the neighbourhood police officers’ service of the era.Methodology: From a methodological point of view, the work is based on document analysis, in addition to the contemporary literature, the official legal sources of the period are also analyzed, using historical and taxonomic processing.Findings: The neighbourhood police officers’ service, which began in the 1950s, was consolidated into the 1960s. Replacing the orders of the Minister of the Interior, which previously regulated the form of service, the first unified neighbourhood police officers’ regulation was born in 1964. The rules formulated at that time in relation to the form of service proved to be timeless. As a special feature of the spirituality of the neighbourhood police officers’ system in the period under review, the duality of togetherness and discrimination can be highlighted. The neighbourhood police officers’ badge served that purpose, which on the one hand strengthened the district commissioner’s cohesion, and on the other hand distinguished perceptible to the outside world as well or if you like highlighted the neighbourhood police officers from the police force, referring to the high level of personal responsibility which can be derived from the complex system of tasks of the neighbourhood police officers.Value: The professional-historical review ranges from the stabilization of the neighbourhood police officers’ service after the initial period to the regime change, so it is limited to the period between 1960 and 1990. The examination of the activity of the neighbourhood police officers’ system operating in the smooth period of the Hungarian People’s Republic, also referred to as the Kádár regime, free of major internal and external conflicts, is suitable for detecting periodic tendencies and drawing conclusions based on them.
ENVIRONMENTAL PERFORMANCE OF CHINA'S ECONOMIC SYSTEM: INTEGRATIVE PERSPECTIVE OF EFFICIENCY AND PRODUCTIVITY
Authors: Chen Yingwen , Yang Rui , Wong Christina W. Y. , Miao Xin
Published: April 2022

The high-quality development of regional economic system is inseparable from the collective efforts of multiple economic sectors. Increasing attention has been paid to the environmental performance evaluation of different administrative levels or economic sectors, but integrated research is scarce. Taking the three industries (the primary, secondary and tertiary industries) into account, this paper proposes a data envelopment analysis (DEA) model with parallel network structure to assess the environmental performance of 30 provinces in China from integrative perspective of efficiency and productivity. Then, the Tobit model is adopted to investigate the effects of external factors on the environmental performance. The results show that environmental efficiency of Chinese economy is only 0.4436 during 2010–2019 and the performance of the secondary industry is the highest, followed by the tertiary and the primary industries. Moreover, the environmental efficiency of eastern region is far higher than that of the central or western regions. Technological progress is the main driver of environmental productivity improvement for China’s economic system. Most of the external factors such as energy structure and technology innovation, have different effects on the environmental performance of different regions. Finally, several targeted policy implications are suggested for improving the environmental performance of China’s economic system.
Empirical Limb-darkening Coefficients and Transit Parameters of Known Exoplanets from TESS
Authors: Patel Jayshil A. , Espinoza Néstor
Published: April 2022

Although the main goal of the Transiting Exoplanet Survey Satellite (TESS) is to search for new transiting exoplanets, its data can also be used to study already-known systems in further detail. The TESS bandpass is particularly interesting to study the limb-darkening effect of the stellar host that is imprinted in transit light curves, as the widely used phoenix and atlas stellar models predict different limb-darkening profiles. Here we study this effect by fitting the transit light curves of 176 known exoplanetary systems observed by TESS, which allows us to extract empirical limb-darkening coefficients (LDCs) for the widely used quadratic law but also updated transit parameters (including ephemeride refinements) as a by-product. Comparing our empirically obtained LDCs with theoretical predictions, we find significant offsets when using tabulated TESS LDCs. Specifically, the u
2 coefficients obtained using phoenix models show the largest discrepancies depending on the method used to derive them, with offsets that can reach up to Δu
2 ≈ 0.2, on average. Most of those average offsets disappear, however, if one uses the SPAM algorithm introduced by Howarth to calculate the LDCs instead. Our results suggest, however, that for stars cooler than about 5000 K, no methodology is good enough to explain the limb-darkening effect; we observe a sharp deviation between measured and predicted LDCs on both quadratic LDCs of order Δu
1, Δu
2 ≈ 0.2 for those cool stars. We recommend caution when assuming LDCs as perfectly known, in particular for these cooler stars when analyzing TESS transit light curves.
AT2020hur: A Possible Optical Counterpart of FRB 180916B
Authors: Li Long , Li Qiao-Chu , Zhong Shu-Qing , Xia Jie , Xie Lang , Wang Fa-Yin , Dai Zi-Gao
Published: April 2022

The physical origin of fast radio bursts (FRBs) remains unclear. Finding multiwavelength counterparts of FRBs can provide a breakthrough for understanding their nature. In this work, we perform a systematic search for astronomical transients whose positions are consistent with FRBs. We find an unclassified optical transient AT2020hur (α = 01h58m00.ˢ750 ± 1″,

δ
=
65
°

43

′

00
.″
30
±
1
″

) that is spatially coincident with the repeating FRB 180916B (α = 01h58m00.ˢ7502 ± 2.3 mas,

δ
=
65
°

43

′

00
.″
3152
±
2.3

mas; Marcote et al. 2020). The chance possibility of the AT2020hur–FRB 180916B association is about 0.04%, which corresponds to a significance of 3.5σ. We develop a giant flare (GF) afterglow model to fit AT2020hur. Although the GF afterglow model can interpret the observations of AT2020hur, the derived kinetic energy of such a GF is at least three orders of magnitude larger than that of a typical GF, and a lot of fine-tuning and coincidences are required for this model. Another possible explanation is that AT2020hur might consist of two or more optical flares originating from the FRB source, e.g., fast optical bursts produced by the inverse Compton scattering of FRB emission. Besides, AT2020hur is located in one of the activity windows of FRB 180916B, which provides independent support for the association. This coincidence may be due to the optical counterparts being subject to the same periodic modulation as FRB 180916B, as implied by the prompt FRB counterparts. Future simultaneous observations of FRBs and their optical counterparts may help to reveal their physical origin.
Quelle écologie pour quelle justice ?
Authors: Azam Geneviève
Published: April 2022

Bercés d’illusions par la fiction de la croissance verte, il est temps de nous saisir d’une écologie non productiviste, tournée vers l’autonomie et vers le soin des personnes et de la Terre, qui nous permette de cultiver les interdépendances et la solidarité entre les mondes vivants, humains et autres qu’humains. Cela passe notamment par le retournement du mythe du pouvoir d’achat en une réalité libératrice : le pouvoir de ne plus dépendre de l’acte d’achat et du capitalisme reverdi.
Un projet écologiste du point de vue des quartiers populaires
Authors: Ouassak Fatima
Published: April 2022

Co-fondatrice du collectif Front de mères 1 , Fatima Ouassak exprime dans une tribune corrosive le point de vue de celles qui subissent les injustices sociales et l’inaction écologique au quotidien. S’appuyant notamment sur l’exemple de Verdragon, Maison de l’écologie populaire à Bagnolet, elle appelle à décloisonner les luttes écologistes, féministes, antiracistes pour que l’écologie devienne un outil de libération.
« Sobriété et fraternité sont les deux mamelles de la transition démocratique et écologique »
Authors: de Foucauld Jean-Baptiste , Chaygneaud-Dupuy Hervé
Published: April 2022

Au cours d’un entretien captivant mené par Hervé Chaygneaud-Dupuy, Jean-Baptiste de Foucauld, co-fondateur du Pacte civique 1 , esquisse des perspectives désirables entre sobriété et frugalité. Tout en prenant garde de ne pas utiliser des raccourcis trop simplistes, il prône une prise de conscience collective de la nécessité de modifier nos modes de vie dans le sens d’une sobriété heureuse, sans exclure un cheminement progressif vers des quotas d’émissions de gaz à effet de serre.
Psychologie sociale, communication et langage
Authors: Ndobo André
Published: April 2022

Résumé introductif Cette recherche essaye de valider la prédiction selon laquelle des individus qui sont confrontés à des contextes normatifs ou législatifs contraignants, auront tendance à recourir aux stratégies discursives pour masquer leur sexisme et leur perception dévalorisée des femmes au travail. L’expérience réalisée, sous le prétexte d’une tâche de sélection professionnelle, montre que, comparativement aux femmes, le discours concernant les hommes porte des marques qui sont plus en phase avec la demande professionnelle courante et que, de manière générale, les hommes sont traités avec plus de bienveillance que les femmes. Les résultats sont discutés en termes de routines sexistes, de double standard dans l’évaluation des hommes et des femmes et de stratégies de masquage des préjugés sexistes dans l’espace public
Psychologie sociale, communication et langage
Authors: Marchand Pascal
Published: April 2022

Résumé introductif L’impact des médias sur les spectateurs est rarement étudié par la psychologie sociale expérimentale francophone. Cette question est, en revanche, abondamment traité par la littérature anglo-saxonne. On montre ici que les théories et les méthodes de la psychologie sociale sont pertinentes pour sortir des raisonnements de sens commun et produire une connaissance vérifiable des effets médiatiques, et que cette approche commence à se développer dans nos universités et laboratoires .
Psychologie sociale, communication et langage
Authors: Trognon Alain , Batt Martine , Bromberg Marcel , Sorsana Christine , Frigout Sophie
Published: April 2022

Résumé introductif Dans ce chapitre, nous poursuivons l’étude des fondements conceptuels de la Psychologie Sociale en nous concentrant sur les propriétés objectives qui rendent compte de son positionnement à l’interface du collectif (le sociologique) et de l’individuel (le psychologique). Le rassemblement de ces propriétés définit un domaine de réalité relativement autonome que Goffman – dans l’American Sociological Review, 48 (1983) – a judicieusement dénommé l’ « ordre de l’interaction ». Si l’ordre de l’interaction ne recouvre évidemment pas toute l’étendue de la Psychologie sociale, par exemple, il n’est qu’un niveau parmi les quatre qui forment l’analyse psychosociale selon Doise (1989), nous pensons qu’il en est le niveau proprement génératif. Cette vertu est bien établie par les travaux empiriques tant observationnels qu’expérimentaux qui ont été consacrés à l’ordre de l’interaction durant les trente dernières années. Mais sa compréhension demande plus qu’une simple énumération de leurs résultats. Elle requiert la prise en considération de l’évolution de la pragmatique formelle durant la seconde moitié du siècle dernier. Nous montrons alors que, suite à la « découverte » de la performativité, deux temps forts de cette évolution auront été décisifs à la compréhension de la dynamique de l’ordre de l’interaction. Le premier a été l’élaboration d’un concept intégrant les aspects représentationnels du message linguistique dans ses aspects actionnels. Le second est la dialectisation du concept précédant dans la théorie des jeux. En conjuguant ces deux mouvements théoriques il nous semble qu’on peut maintenant former une théorie unifiée de la « parole-en-interaction » (Schegloff, 1991) susceptible d’expliquer la fonction d’interface de l’ordre de l’interaction .
La transparence dans le champ de l’eurocratie : un instrument politique au service de la bureaucratie (1992-2022)
Authors: Michel Hélène
Published: April 2022

Le mandat de Jean-Claude Juncker a débuté avec l’ambition d’accroître la transparence dans l’Union européenne. En quoi cette annonce et les mesures qu’elle engage constituent-elles une inflexion par rapport à ce qui était déjà largement fait ? Quelles sont les conséquences de cette nouvelle politique de transparence ? Cet article vise à répondre à ces deux questions. Pour cela, il revient d’abord sur la diversité des politiques de transparence précédemment mises en œuvre et montre comment la politique de Juncker parvient à faire tenir ensemble une pluralité de mesures : lisibilité des processus décisionnels, accès à l’information et participation des citoyens sont synthétisés dans l’impératif de publicisation. Dans un second temps, l’article examine les conséquences qu’induit pour l’administration européenne cette nouvelle politique de transparence. Il montre ainsi que les mesures mises en œuvre dans le cadre du programme « Mieux légiférer » pour accroître la publicité des informations et des processus renforcent le poids du capital bureaucratique des agents administratifs comme des représentants d’intérêts qui évoluent au sein du champ de l’eurocratie. La transparence renforce ainsi la bureaucratie européenne.
Institutionnalisation du médiateur européen et nouveaux instruments d’enquête : le cas de l’enquête de 2017-2019 sur l’agence européenne des médicaments
Authors: Raulet-Descombey Juliette
Published: April 2022

Le médiateur européen, né il y a tout juste trente ans, est un organe profondément hybride, à la fois parlementaire et judiciaire, sans pour autant relever entièrement d’aucune de ces deux catégories. Il est à la fois doté d’un pouvoir de contrôle similaire à celui d’un parlement, sans être un organe législatif, et d’une capacité de contrôle judiciaire, sans bénéficier des pouvoirs décisionnels contraignants. Sa nature unique ne l’a cependant pas empêché de connaître une évolution marquée par l’accroissement continu de ses pouvoirs et de son influence sur les institutions, organes et agences de l’Union européenne. Cette dynamique s’est d’ailleurs accélérée depuis la décennie 2010 et a été sanctionnée par la réforme de son statut, votée par le Parlement européen en 2021, qui entérine, entre autres, de nouveaux pouvoirs d’enquête d’initiative, notamment l’enquête stratégique, redoublant ainsi l’indépendance de la Médiatrice européenne. Toutefois, l’officialisation de ces nouveaux pouvoirs n’a pas entraîné mécaniquement leur effectivité complète. C’est justement une analyse de ce découplage que le présent article vise à fournir, à travers l’étude d’une enquête stratégique menée en 2017-2019 par la Médiatrice européenne sur l’une des agences les plus controversées de l’Union : l’Agence européenne des médicaments.
A Markovian switching diffusion for an SIS model incorporating Lévy processes
Authors: Settati A. , Lahrouz A. , Fatini Mohamed El , Haitami A. El , Jarroudi M. El , Erriani M.
Published: April 2022

The purpose of this work is to investigate the asymptotic properties of a stochastic version of the classical SIS epidemic model with three noises. The stochastic model studied here includes white noise, telegraph noise and Lévy noise. We established conditions for extinction in probability and in \begin{document}$ pth $\end{document} moment. We also showed the persistence of disease under different conditions. The presented results are demonstrated by numerical simulations.
Finite-time blow-up in a quasilinear degenerate parabolic–elliptic chemotaxis system with logistic source and nonlinear production
Authors: Tanaka Yuya , Yokota Tomomi
Published: April 2022

This paper deals with finite-time blow-up of solutions to the quasilinear degenerate parabolic–elliptic chemotaxis system with logistic source and nonlinear production,

   \begin{document}$ \begin{align*} \begin{cases} u_t = \Delta u^m - \chi \nabla \cdot (u^\alpha \nabla v) + \lambda u - \mu u^\kappa, \quad &x \in \Omega, \ t>0, \\ 0 = \Delta v - \overline{M_\ell}(t) + u^\ell, \quad &x \in \Omega, \ t>0, \end{cases} \end{align*} $\end{document}

where \begin{document}$ \Omega: = B_R(0) \subset \mathbb{R}^n \ (n \in \mathbb{N}) $\end{document} be a ball with some \begin{document}$ R>0 $\end{document} and \begin{document}$ m\ge1 $\end{document}, \begin{document}$ \chi>0 $\end{document}, \begin{document}$ \alpha\ge1 $\end{document}, \begin{document}$ \lambda>0 $\end{document}, \begin{document}$ \mu>0 $\end{document}, \begin{document}$ \kappa>1 $\end{document}, \begin{document}$ \ell>0 $\end{document} as well as \begin{document}$ \overline{M_\ell}(t) $\end{document} is the average of \begin{document}$ u^\ell $\end{document} over \begin{document}$ \Omega $\end{document}. As to the corresponding system with nondegenerate diffusion, finite-time blow-up has been obtained under the condition that \begin{document}$ \alpha-\ell>\max\left\{\overline{m} +\frac{2}{n}\kappa, \kappa\right\} $\end{document}, where \begin{document}$ \overline{m}: = \max\{m,0\} $\end{document} in a previous paper [26], which is based a work by Fuest [7]. The purpose of this paper is to establish finite-time blow-up for the above degenerate chemotaxis system within a concept of weak solutions with a moment inequality leading to blow-up.
Nonlocal dispersal equations in domains becoming unbounded
Authors: Sun Jian-Wen
Published: April 2022

This paper is concerned with a class of nonlocal dispersal equation in asymptotically cylindrical domain. Our aim is to investigate the asymptotic behavior of positive solutions in domain becoming infinite in some direction. We prove that the limiting behavior of positive solutions is only determined by the bounded part of whole domain.
Acceptability maximization
Authors: Kováčová Gabriela , Rudloff Birgit , Cialenco Igor
Published: April 2022

The aim of this paper is to study the optimal investment problem by using coherent acceptability indices (CAIs) as a tool to measure the portfolio performance. We call this problem the acceptability maximization. First, we study the one-period (static) case, and propose a numerical algorithm that approximates the original problem by a sequence of risk minimization problems. The results are applied to several important CAIs, such as the gain-to-loss ratio, the risk-adjusted return on capital and the tail-value-at-risk based CAI. In the second part of the paper we investigate the acceptability maximization in a discrete time dynamic setup. Using robust representations of CAIs in terms of a family of dynamic coherent risk measures (DCRMs), we establish an intriguing dichotomy: if the corresponding family of DCRMs is recursive (i.e. strongly time consistent) and assuming some recursive structure of the market model, then the acceptability maximization problem reduces to just a one period problem and the maximal acceptability is constant across all states and times. On the other hand, if the family of DCRMs is not recursive, which is often the case, then the acceptability maximization problem ordinarily is a time-inconsistent stochastic control problem, similar to the classical mean-variance criteria. To overcome this form of time-inconsistency, we adapt to our setup the set-valued Bellman's principle recently proposed in [23] applied to two particular dynamic CAIs - the dynamic risk-adjusted return on capital and the dynamic gain-to-loss ratio. The obtained theoretical results are illustrated via numerical examples that include, in particular, the computation of the intermediate mean-risk efficient frontiers.
Yamabe constant evolution and monotonicity along the conformal Ricci flow
Authors: Li Yanlin , Abolarinwa Abimbola , Azami Shahroud , Ali Akram
Published: April 2022

We investigate the Yamabe constant's behaviour in a conformal Ricci flow. For conformal Ricci flow metric $ g(t) $, $ t \in [0, T) $, the time evolution formula for the Yamabe constant $ Y(g(t)) $ is derived. It is demonstrated that if the beginning metric $ g(0) = g_0 $ is Yamabe metric, then the Yamabe constant is monotonically growing along the conformal Ricci flow under some simple assumptions unless $ g_0 $ is Einstein. As a result, this study adds to the body of knowledge about the Yamabe problem.
Certain dynamic iterative scheme families and multi-valued fixed point results
Authors: Ali Amjad , Arshad Muhammad , Emeer Eskandar , Aydi Hassen , Mukheimer Aiman , Abodayeh Kamal
Published: April 2022

The article presents a systematic investigation of an extension of the developments concerning $ F $-contraction mappings which were proposed in 2012 by Wardowski. We develop the notion of $ F $-contractions to the case of non-linear ($ F $, $ F_{H} $)-dynamic-iterative scheme for Branciari Ćirić type-contractions and prove multi-valued fixed point results in controlled-metric spaces. An approximation of the dynamic-iterative scheme instead of the conventional Picard sequence is determined. The paper also includes a tangible example and a graphical interpretation that displays the motivation for such investigations. The work is illustrated by providing an application of the proposed non-linear ($ F $, $ F_{H} $)-dynamic-iterative scheme to the Liouville-Caputo fractional derivatives and fractional differential equations.
Sliding-mode controller synthesis of robotic manipulator based on a new modified reaching law
Authors: Shao Xinyu , Liu Zhen , Jiang Baoping
Published: April 2022

In this study, an adaptive modified reaching law-based switch controller design was developed for robotic manipulator systems using the disturbance observer (DO) approach. Firstly, a standard DO is employed to estimate the unknown disturbances of the plant, from which the control signal could be compensated. Then, an adaptive modified reaching law is established to dynamically adapt the switching gain of the sliding mode robust term and further guarantee the finite-time arrival of the established sliding surface. Additionally, the convergence of the error system is analyzed via the Lyapunov method. At last, the feasibility and effectiveness of the proposed control scheme are verified by using a two-joint robotic manipulator model. The simulation results show that the developed controller can achieve rapid tracking, reduce system chattering and improve the robustness of the plant. The main innovations of the work are as follows. 1) A new adaptive reaching law is proposed; it can reduce chattering effectively, and it has a fast convergence speed. 2) Regarding the nonlinear robotic manipulator model, a novel adaptive sliding-mode controller was synthesized based on the DO to estimate the unknown disturbance and ensure effective tracking of the desired trajectory.
Incidence of first-time stroke in Taif, Saudi Arabia
Authors: Shawky Ola , Alkhaldi Maha , Yousef Deema , Alhindi Adnan , Alosaimi Teef , Jawhari Amjad , Aladwani Aliah
Published: April 2022

Introduction

The majority of stroke survivors suffer from physical and mental disabilities. This causes social and economic burdens, and it is regarded as a major source of morbidity and the second leading cause of death worldwide. This study aims to quantify the incidence of cerebrovascular stroke in the Taif region, identify risk factors for CVA, and raise awareness about modifiable risk factors.

Methods

Over 17 months period (February 2020 to June 2021), all first-stroke patients admitted to Alhada military hospital and King Faisal hospital in Taif region were included. Stroke patients from outside the Taif region were excluded from participating in the study. Age, gender, domicile, employment, history of hypertension, diabetes, cardiac diseases, smoking, previous history of stroke or transient ischemic episodes were all obtained from the patient's files. Also, a history of medications, particularly anticoagulants and contraceptive tablets if a female in childbearing age.

Results

Overall, the study included 404 patients, 40.6% of whom were females and 59.4% of whom were males, with a mean age of 64.0 ± 14.9 years. The most common type of CVA was ischemic stroke (78.5%), followed by TIA (11.9%), and hemorrhagic stroke (7.2%). Slurred speech was the most commonly reported chief symptom among stroke survivors (23%), followed by dizziness (13.6%), left-sided weakness (10.9%), and right-sided weakness (10.9%). The incidence of stroke is increasing in patients who had chronic diseases like hypertension which is 62.6% survival had, and the second most common lead to stroke and decreased elasticity of vessels is diabetes mellitus 60.4% followed by ischemic heart disease 9.4% and smoking 5.4%.

Conclusions

Finally, using a prospective clinical study, the incidence of first time CVA in Taif was higher in males (about 59.4%) than in females (40.6%). That indicates a strong relation between Diabetes which represents 60.4%, Hypertension was 62.6% and age 18–55. We suggest running campaigns that target people with these risk factors to reduce the possibility of CVA occurrence.
L’écriture guidée du code
Authors: Roth Camille , Poiroux Jérémie
Published: April 2022

Plusieurs travaux récents sur les algorithmes de recommandation ont appelé à s’éloigner de l’étude de leurs effets, tels que l’émergence de biais de prédiction ou de bulles de filtres, pour se pencher sur la manière dont ils sont conçus. Nous proposons ici de répondre à cet appel grâce à une étude qualitative basée sur des entretiens avec une trentaine de développeurs. Nous montrons que les conditions de production de ces algorithmes sont très étroitement liées à leur utilisation. Déployés sur des plateformes auprès d'un grand nombre d'utilisateurs, permettant ainsi une observation permanente de leur fonctionnement, leur code évolue en effet d'une manière hybride qui dépend continuellement du travail des développeurs et des actions des utilisateurs. Simplement dit, l'utilisation du guidage algorithmique guide sa propre évolution – qu'il s'agisse d'introduire de nouvelles variables, de nouveaux processus algorithmiques et, surtout, de choisir entre de nombreuses variantes par le biais de tests quantifiant en temps réel les réactions des utilisateurs à l'aune d'objectifs essentiellement commerciaux. De ce point de vue, le développement du code obéit dans une large mesure à un processus évolutionnaire semi-autonome dont les tests auprès des utilisateurs sont le principal arbitre: les développeurs introduisent des mutations, les utilisateurs produisent implicitement le calcul de la performance, exprimés en termes commerciaux standards (audience, ventes). En soulignant l'importance cruciale du choix de ces métriques, une fois effectués les choix concernant l'architecture d'une plateforme donnée, nous appelons les futures recherches à formuler la question de la politique des algorithmes principalement sous l'angle de la définition de ces deux dimensions – performance et design des plateformes – plutôt que d'ouvrir davantage la boîte noire du code et de sa conception.
Codes. L’informatique comme elle s’écrit
Authors: Alcaras Gabriel , Larribeau Antoine
Published: April 2022

Les infrastructures numériques se présentent comme des dispositifs fascinants, à la fois incroyablement complexes et parfaitement ordonnés. Alors que ces infrastructures font l’objet de nombreux discours, nous ne savons que peu de choses sur leurs pratiques de production et de maintenance, surtout au regard de leur étendue et de leur diversité. Comment se créent les logiciels que nous utilisons chaque jour ? Qui construit les infrastructures informatiques de nos sociétés contemporaines ? De quoi le numérique est-il fait ? Ce texte tisse une toile de fond théorique pour introduire les contributions du numéro spécial. Afin de dépasser les figures mythiques (hacker, geek, entrepreneur) et d’échapper à la réduction algorithmique, s’emparer de l’écriture des codes offre de multiples prises aux enquêtes empiriques. Cet objet se trouve également à l’intersection de plusieurs traditions de recherche. Elles ouvrent ainsi des pistes prometteuses sur les savoir-faire informatiques, la performativité ou encore les processus de codification.
Pandemic Participation
Authors: Panchyshyn Kelly , Corbett Jon
Published: April 2022

This article revisits the three foundational principles of Participatory Mapping practice identified in Good practices in participatory mapping. These include processes that strive for transparency, are unencumbered by time, and prioritize trust - the ‘Three T’s’. Authors Kelly Panchyshyn and Jon Corbett analyze the relevance of these principles under the spectre of the global COVID-19 pandemic. This reflection is carried out within the context of Kelly’s Master’s research. Over the course of 2020, Kelly worked with staff and citizens of the Kwanlin Dün First Nation to map Indigenous and non-Indigenous plant harvest foodways within Łu Zil Män, an expansive stretch of land on the edge of Whitehorse, Yukon. In exploring both the barriers and opportunities created by conducting this project during a pandemic, the authors determine that the ‘Three T’s’ remain essential for conducting meaningful participatory mapping. However, they also argue that each T takes on new dimensions within contexts of isolation and social distancing, particularly for Northern and Indigenous communities.
Relationships between air temperature and ice conditions on the southern Baltic coastal lakes in the context of climate change
Authors: Girjatowicz Józef Piotr , Świątek Małgorzata , Kowalewska-Kalkowska Halina
Published: April 2022

Shallow, lagoonal coastal lakes of the Southern Baltic are exceptionally susceptible to atmospheric factors. This work examines the influence of winter air temperatures in Ustka on ice parameters (dates of first ice occurrence and last ice disappearance, ice season duration, number of days with ice, and maximum ice thickness) on Southern Baltic coastal lakes (Jamno, Bukowo, Gardno, Łebsko), and trends displayed by changes in these parameters over the period spanning 1960/61-2019/20. The research data was retrieved from the archives of Institute of Meteorology and Water Management – National Research Institute. As a first step of the analysis, we investigated the statistical relationships in spatial and temporal variations in winter air temperature and coastal lake ice parameters. Correlation and regression method was employed to determine the influence of air temperature on coastal lake ice conditions. Correlation and determination coefficients were calculated, and linear regression equations were determined. The statistical significance of the observed relationships was assessed using Fisher-Snedecor test. Additionally, linear trend models were constructed. Our analysis indicates that from 1960/61 to 2019/20, the average rate of increase in winter temperature (December-March) in Ustka equalled 0.04°C ⋅year-1. The correlation coefficients for air temperature versus ice parameters were highly statistically significant (p<0.001). The strongest relationships (with correlation coefficients below -0.90) occurred between air temperature and number of days with ice. Ice season duration and number of days with ice are both closely linked with last ice disappearance date and ice thickness. Our analysis shows that a 1°C increase in average seasonal air temperature will result in the number of days with ice on the studied coastal lakes becoming reduced by 16-17 days. All trends in ice parameters indicate a mildening of ice conditions. Most of the assessed trends are statistically significant. The strongest trends were observed for ice season duration, and indicate its shortening toward the east, from 0.66 day ⋅year-1 (Lake Jamno) to 1.16 day ⋅year-1 (Lake Łebsko). All correlation coefficients for ice trends were found to increase eastward, which could be explained by an increasing influence of the warming climate over the Southern Baltic in this direction. The strong relationships between air temperature and Southern Baltic coastal lake ice parameters, and the determined rate of changes may have a significance for forecasting, as the shifting dates of ice formation and disappearance on lakes are highly important for the lake hydrodynamics, and the functioning of aquatic ecosystems.
The application of intraoperative neurophysiological monitoring in selective dorsal neurotomy for primary premature ejaculation: a prospective single-center study
Authors: Tang Qing-Lai , Song Tao , Han You-Feng , Yang Bai-Bing , Chen Jian-Huai , Xu Zhi-Peng , Xu Chun-Lu , Xu Yang , Yu Wen , Qiu Wei , Shi Jiong , Zhang En-Si , Dai Yu-Tian
Published: April 2022

Selective dorsal neurotomy (SDN) is a surgical treatment for primary premature ejaculation (PE), but there is still no standard surgical procedure for selecting the branches of the dorsal penile nerves to be removed. We performed this study to explore the value of intraoperative neurophysiological monitoring (IONM) of the penile sensory-evoked potential (PSEP) for standard surgical procedures in SDN. One hundred and twenty primary PE patients undergoing SDN were selected as the PE group and 120 non-PE patients were selected as the normal group. The PSEP was monitored and compared between the two groups under both natural and general anesthesia (GA) states. In addition, patients in the PE group were randomly divided into the IONM group and the non-IONM group. During SDN surgery, PSEP parameters of the IONM group were recorded and analyzed. The differences in PE-related outcome measurements between the perioperative period and 3 months’ postoperation were compared for the PE patients, and the differences in effectiveness and complications between the IONM group and the non-IONM group were compared. The results showed that the average latency of the PSEP in the PE group was shorter than that in the normal group under both natural and GA states (P < 0.001). Three months after surgery, the significant effective rates in the IONM and non-IONM groups were 63.6% and 34.0%, respectively (P < 0.01), and the difference in complications between the two groups was significant (P < 0.05). IONM might be useful in improving the short-term therapeutic effectiveness and reducing the complications of SDN.
High-Dose-Rate Brachytherapy Boost Following External Radiotherapy in a Case of Carcinoma External Ear
Authors: Singh Jayesh , Shah Aastha , Parikh Ankita , Shah Isha , Anand Dinesh , Jain Himanshi , Suryanarayan U
Published: April 2022

Squamous cell carcinoma of the external ear is rare and the combination of external beam radiotherapy and brachytherapy has been beneficial for tumors in this location due to the advantage of organ preservation and thereby cosmesis. The incorporation of brachytherapy allows the delivery of doses large enough for the eradication of tumor and the advantage of rapid dose fall off due to brachytherapy minimizes the radiation damage to the nearby organs at risk. Herein we report a case of elderly male with early stage squamous cell carcinoma of external ear treated with a combination of external beam radiation with brachytherapy. An eighty nine year old male reported to our hospital with the complaints of left sided ear ache the presence of some mass in the left external ear. A diagnostic Contrast enhanced Computed Tomography (CECT) scan of head and neck showed a 1.6*1.5*1.4 cm mass lesion (maximum diameter) involving anterior cartilaginous part of left external auditory canal and preauricular soft tissue, thereby staged as T2N0, stage II. Patient was planned for External Beam Radiotherapy (EBRT) using 3D CRT(Conformal Radiotherapy) technique by 6 MV photon beam to a dose of 50 Gy in 25 fractions (2 Gy/#) and following this, a gap of seven days was given and after that four fractions of HDR brachytherapy using Iridium 192 of 3 Gy/# keeping a gap of six hours between two fractions on a single day, Two flexible plastic tubes were used for radiation delivery. The size of the catheter used for radiation delivery was 6 French. Planning CT scan was taken and target volume defined as PTV and a dose of 3 Gy per fraction to a total of 4 fractions was prescribed to the target volume. The spike of intravenous site was used for fixing the plastic tube in the mould. The tumor responded ver well to radiotherapy. Brachytherapy is an effective modality to boost high risk areas without significant damage to the surrounding area. External Beam Radiotherapy in case of early stage carcinoma external auditory canal combined with brachytherapy boost can be considered as a better modality with less severe side effects and better cosmesis.
Comparison of Tragal Cartilage and Conchal Cartilage in Tympanoplasty
Authors: Vadiya Sohil I. , Makwana Parth , Khetani Sridhar , Mehta Nisarg
Published: April 2022

Aim and Objectives:

The aim and objective of the study are to compare results in terms of graft uptake and hearing improvement in cases undergoing tympanoplasty with the use of conchal or tragal cartilage.

Materials and Methods:

A total of 74 cases of more than 18 and <50 years of age included in this study, where full-thickness cartilage tympanoplasty was performed. Thirty-seven cases included in Group A where tragal full-thickness cartilage was used and 37 cases included in Group B where full-thickness conchal cartilage was used.

Results:

Thirty-six (97.3%) cases in Group A and 35 (94.6%) cases in Group B had successful and complete graft uptake in this study. Hearing improvement was found to be better with the cases in Group B than Group A.

Conclusion:

Full-thickness conchal cartilage and tragal cartilage give good graft uptake results and hearing improvement is significantly better with the use of conchal cartilage.
Cortical Emissary Vein
Authors: Dahlan Ahmad Faiz , Zainon Izny Hafiz , Yeoh Zhi Xiang , Md Daud Mohd Khairi Md
Published: April 2022

Bone anchored hearing aid (BAHA) is a device that combines a sound processor with a small titanium fixture implanted at the mastoid area. It is indicated for those having conductive hearing loss, especially in those not suitable for hearing aids. Emissary veins are residual connections between intracerebral veins and their extracranial drainage. The vein may be injured at the time of drilling procedure such as during insertion of implant at the mastoid area. We report a case of difficult BAHA surgery after encounter with cortical emissary vein. Mastoid emissary vein is a rare but definite entity which if not diagnosed preoperatively could be a cause of severe hemorrhage intraoperatively.