bluuebunny/crossref_metadata_2025 huggingface dataset:
Flora of Cameroon – Annonaceae Vol 45
Authors: Couvreur Thomas L. P. , Dagallier Leo-Paul M. J. , Crozier Francoise , Ghogue Jean-Paul , Hoekstra Paul H. , Kamdem Narcisse G. , Johnson David M. , Murray Nancy A. , Sonké Bonaventure
Published: September 2022

Annonaceae is a major pantropical family with 113 genera and about 2550 species. Cameroon is one of the most biodiverse countries in Africa but its flora remains incompletely known. In this volume of the Flora of Cameroon, we describe 166 native taxa representing 163 species in 28 native genera within the family Annonaceae. A total of 22 species (about 13%) are endemic to the country. We provide keys to all native genera, species, and infraspecific taxa. For each species a detailed morphological description and a map of its distribution in Cameroon are provided. Distribution maps and diversity analyses are based on a taxonomically verified database of 2073 collections. Across Africa, Cameroon is a center of diversity for Annonaceae harboring one of the highest numbers of species and genera. For example, Cameroon harbors the highest number of African species for the only pantropical genus of Annonaceae, ﻿Xylopia. Annonaceae are found across all 10 administrative regions of Cameroon but diversity is concentrated within the tropical rain forest areas situated in the south and South-West. The areas around Bipindi and Mount Cameroon show the highest levels of diversity, but this is correlated with collection effort. Line drawings and/or photographs accompany most species. One species new to science ﻿﻿﻿Uvariopsis etugeanaDagallier & Couvreursp. nov.is described. We also undertake a number of nomenclatural changes such as lectotypifications, six new synonymies and two new combinations (﻿﻿﻿Uvaria anisotricha(Le Thomas) Couvreur,comb. nov.; ﻿﻿﻿﻿﻿Uvariodendron fuscum var. giganteum (Engl.) Dagallier & Couvreur,comb. nov.).
Phylogeography and ecology of bumble bees on Kolguev Island, a remote European Arctic landmass
Authors: Potapov Grigory S. , Kolosova Yulia S. , Kondakov Alexander V. , Tomilova Alena A. , Filippov Boris Yu. , Zubrii Natalia A. , Spitsyn Vitaly M. , Spitsyna Elizaveta A. , Zheludkova Alisa A. , Gofarov Mikhail Yu. , Bovykina Galina V. , Bolotov Ivan N.
Published: September 2022

The bumble bee fauna of the Russian Arctic is rather poorly known. Kolguev Island, a remote insular territory in the Barents Sea, is one of the deficiently studied areas. In this study, material on Kolguev’s bumble bees is re-examined, phylogeographic data analysed, putative scenarios explaining the origin of the bumble bee fauna on the island discussed, and the biology and phenology of these insular populations described. Five bumble bee species, i.e., Bombus flavidus, B. lapponicus, B. jonellus, B. pyrrhopygus, and B. balteatus, were recorded on this island. All of these species are widespread throughout the Eurasian Arctic. Bumble bee populations on Kolguev Island are characterised by a low level of molecular divergence from mainland populations. Based on paleogeographic reconstructions and phylogeographic patterns, it is hypothesised that the bumble bees appeared on this island in the Early Holocene. The lack of rodents (lemmings and voles) sharply decreases the number of available nesting places for bumble bees on Kolguev Island.
Les vieilles gens sont-elles encore éducables ? Autorité et soin au grand-âge
Authors: Charazac Pierre
Published: September 2022

Comme la dépendance qu’elle accompagne souvent, l’autorité extérieure provoque le réveil au grand-âge de la conflictualité œdipienne et de l’angoisse de castration ou suscite des fantasmes de toute-puissance. Deux vignettes cliniques montrent comment, dans une configuration familiale ou institutionnelle narcissique, les identifications sur lesquelles repose la relation d’autorité se caractérisent par l’exclusion du tiers.
L’injonction paradoxale. de la famille du résident en ehpad : entre désir de liberté, stimulation et surveillance
Authors: Lachaize Tania
Published: September 2022

La clinique (le travail soignant, les soins) de la personne âgée confronte les soignants au sujet de l’autorité. Au cours de son exercice en ehpad (Établissement pour personnes âgées dépendantes), l’auteure étudie les relations entre la famille, la vie du proche en institution et repère un renversement de l’autorité. Ce phénomène se perçoit notamment à travers la demande concernant le confort de leur proche. La famille se fait l’écho des désirs de la personne âgée qui s’abrasent avec le temps, parfois au détriment des remaniements de sa subjectivité. L’auteure rend compte de ce phénomène à travers le groupe de parole des familles. Elle y repère une angoisse liée à la régression et au vieillissement, détectable dans l’insistance à stimuler et entourer le résident.
Expérience d’une unité psychiatrique Covid+ : l’autorité médicale et les soins psychiques à l’épreuve de la Covid-19
Authors: Loyer Barbara , Gallarda Thierry , Allio Gabrielle , David-Garcia Virginie
Published: September 2022

Les auteurs explorent la question de l’autorité dans les institutions de soin psychique au travers du prisme de leur expérience singulière de la transformation d’une unité de Secteur en unité psychiatrique Covid+ sur une période de trois mois. Dans une attention portée au fonctionnement groupal et institutionnel à l’épreuve de ce changement, ils proposent d’interroger l’impact du contexte pandémique sur la relation thérapeutique et sur les pratiques cliniques. Ils argumentent la nécessité d’ouvrir des espaces créatifs d’échanges et de réflexion clinique pour les professionnels, afin de soutenir les capacités à contenir la souffrance psychique et permettre d’assurer la fonction de protection de sujets en grande vulnérabilité.
De quoi le zombie est-il le signe, et pourquoi ?
Authors: Coquelin Lucile , Saemmer Alexandra
Published: September 2022

Dans la production culturelle contemporaine, le zombie se caractérise par un dérèglement de la chair et de l’esprit dont les traits diffèrent peu, depuis les films de George Romero, alors que les causes de la zombification divergent au gré de l’actualité. Notre analyse en sémiotique sociale de la série The Walking Dead part de l’hypothèse que le zombie possède dans cette série une persistance particulière qui l’inscrit dans le registre du mythe (selon la définition de Roland Barthes). Ce très long film de zombies retarde en outre indéfiniment la révélation des causes de la zombification – manque d’explication qui interroge. L’ambition de l’expérimentation que nous présentons dans cet article n’est néanmoins pas de « décoder » les motivations de la création du mythe. Dans un contexte d’étude fondé sur le partage de connaissances entre les participant-es, nous avons recueilli des hypothèses interprétatives, mais nous nous sommes surtout intéressées aux « filtres interprétatifs » qui motivent celles-ci. La remontée progressive des hypothèses vers ces filtres, sur le terrain, nous a notamment permis d’observer l’action de deux grandes inquiétudes contemporaines sur le processus interprétatif : l’effondrement écologique et la question migratoire.
Se rencontrer sur une app
Authors: Péquignot Adrien
Published: September 2022

Nous proposons dans cet article de questionner la manière dont des sites et applications numériques transforment la rencontre, ceci depuis des expérimentations situées (rétro-ingénierie et sémiotique sociale) menées sur l’application Tinder avec des étudiant·es de l’Université de Paris 8. Nos expérimentations passant par la création de profils de fiction, montrent en outre que Tinder détermine des prix d’abonnements différenciés selon l’âge et le terminal des utilisateur·trices. Notre analyse collective de l’architexte de Tinder permet d’appréhender à quel point l’application oriente nos critères de sélection de partenaires et invisibilise les interactions négatives : la liberté mutuelle prime sur la responsabilité à l’égard de l’autre.
Les migrants ante portas : la Serbie entre l’« humanitarisme », la « brutalité » et le « tsunami » migratoire
Authors: Ivanovic Ivana
Published: September 2022

À la suite de l’intensification des mouvements migratoires au cours de 2015, le sujet des migrants et des réfugiés commence à dominer l’espace public serbe. Le discours médiatique se construisant autour du sujet était principalement humanitaire pour prendre un tournant vers un discours davantage sécuritaire en 2016. À l’appui de l’analyse de discours, y compris l’analyse de métaphore, et l’analyse des données secondaires, nous tentons à démontrer que les hypothèses de Zygmunt Bauman, élaborées, certes, pour le contexte des pays développés de l’Occident, seraient aussi pertinentes pour une société qui se trouve à la porte de l’Europe.
La crise des réfugiés et le retour des camps en Europe au prisme de la question des environs
Authors: Gruev Radoslav
Published: September 2022

Avec la « crise des migrants » que l’Europe a connue depuis 2013, la question centrale des formes-camp comme institution de gestion des populations migrantes est réapparue sur l’avant-scène de l’espace public. Cet article propose d’explorer la question de l’accueil des réfugiés et migrants en Europe à travers l’angle de la « réaction des environs », c’est-à-dire des populations qui résident à côté de cette forme « éphémère » qu’est le camp (de réfugiés/ migrants). À cette fin, nous nous appuyons dans un premier temps sur l’exemple de la réaction des populations environnantes face l’installation des centres d’accueil de réfugiés en Bulgarie depuis 2013 et dans un second, nous évoquons la réaction des résidents d’un Foyer de travailleurs migrants dans l’est de la France, à côté duquel s’était installé un camp de migrants assez important. Deux réactions types sont particulièrement observées : la contestation ouverte d’un côté et le repli sur soi et l’invisibilisation face à la présence du camp et ses “habitants” de l’autre.
Vers une société post-sociétale ?
Authors: Greco Walter
Published: September 2022

À partir des transformations économiques et sociales produites par la mondialisation, les sociétés contemporaines deviennent de plus en plus complexes et articulées. Les rapports entre l'individu et la société ne semblent plus linéaires et se manifestent souvent dans un cadre de régulation sociale de plus en plus faible. Les identités sont souvent radicalisées et il peut devenir problématique de recréer les structures de solidarité qui sous-tendent le concept de société.
Penser l’entre-deux. De nouvelles perspectives programmatiques
Authors: Foucart Jean
Published: September 2022

Le mode de pensée est depuis longtemps un mode « substantif ». Le raisonnement sociologique n’y échappait pas. Marginal et longtemps oublié, un auteur du début du XX e siècle, G. Simmel, avait, lui, fait de l’entre-deux la prémisse centrale de sa sociologie. Dans ce texte, nous reprenons cette idée de construire l’entre-deux comme condition de la réflexion sociologique. Peut-être à tort, ne partirons-nous pas de la sociologie de Simmel. Mais, nous développerons le raisonnement à partir de points de vue en interdépendance. Trois programmes seront développés : le programme conceptuel relatif aux systèmes semi-chaotiques, le programme relatif aux réseaux et enfin à ce programme novateur développant la notion de transaction sociale.
La dynamique entre aménagement urbain et politiques publiques : leçons et expériences de la ville de Beijing, Chine
Authors: Li Dongquan , Lan G. Zhiyong
Published: September 2022

En Chine, comme dans de nombreux autres pays, l’urbanisme est considéré comme une fonction gouvernementale distincte, qui consiste à élaborer des plans stratégiques et d’aménagement du territoire pour le développement urbain. Au cours des dernières décennies, le processus d’urbanisation s’est intensifié, notamment dans les pays densément peuplés d’Asie. Les centres urbains se sont souvent développés plus vite que n’auraient jamais pu l’imaginer les urbanistes, ce qui a engendré une quantité énorme de problèmes urbains, tels que la congestion, les embouteillages, le manque d’infrastructures, les désagréments causés par les services et la pollution. En examinant la dynamique entre les modèles d’urbanisme et les questions et priorités de la politique d’aménagement urbain à Beijing, la méga-capitale chinoise, cet article démontre l’importance de considérer l’urbanisme comme une composante essentielle des politiques publiques et l’importance de s’efforcer de mieux intégrer l’aménagement et la gouvernance urbaine. La profession d’urbaniste elle-même doit également être revue afin de permettre l’apprentissage national et international, d’accueillir des planificateurs issus de disciplines différentes et d’utiliser des méthodes d’aménagement nouvelles et ouvertes. Ce n’est qu’ainsi que l’aménagement peut véritablement déboucher sur une formation urbaine d’une utilité durable, d’une beauté esthétique et d’une justice spatiale, capable d’offrir une expérience urbaine constamment renouvelée.
L’Incontournable vieillissement
Authors: Rubiliani Claudio
Published: September 2022

Le Biologique échange en permanence énergie, matière et information avec son environnement. Ces échanges se font en opposition aux lois de la thermodynamique jusqu’à l’atteinte d’un stade critique : l’âge adulte. Le vieillissement correspond à la phase ontogénétique de gestion du stade critique, de l’âge adulte à la mort. Le vieillissement humain varie en fonction du temps, de l’espace, du sexe et à l’intérieur même de l’organisme. Il résulte de la mise en œuvre d’un schéma génétique grossier largement modulé par les contraintes de l’environnement lato sensu, c’est-à-dire la pression épigénétique. Par le biais des cascades de neurotransmetteurs et d’hormones mises en jeu, notre état psychique a un impact direct – négatif ou positif – sur le vieillissement.
Le Syndrome de glissement à l’aune d’un placement en EHPAD : acte ultime de résistance ?
Authors: Nabarrot Juliette , Piazza Sara , Chandon-Piazza Alexia
Published: September 2022

Constatant la récurrence de la survenue d’un syndrome de glissement chez des patients hospitalisés en service de Soins de Suite Gériatrique au moment où une institutionnalisation en EHPAD est décidée, les autrices proposent, à partir de leur expérience clinique, plusieurs pistes de compréhension de ce phénomène : une identification au désir de mort du social envers les personnes âgées et dépendantes, une solution somatique retardant le placement, ou encore une réappropriation de sa propre fin par le sujet.
Vieillir « bien »… vieillir comme (un) sujet
Authors: Mignet Mariette
Published: September 2022

Qu’est-ce que le vieillissement ? Quelle est sa part de réalité ? Vieillir concerne-t-il un âge particulier ou bien est-ce une attitude, un travail de tous les âges de la vie ? L’article aborde tout particulièrement la question du temps dans une dialectique des opposés : Puer-Puella, image de la jeunesse, depuis l’enfant créateur jusqu’au Puer Aeternus, et Senex. e, image du vieillard, du Sage mais aussi de la sénilité. Une dialectique Puer-Senex est possible à travers la créativité qui, elle, n’a pas d’âge. La nouvelle de Brecht, La vieille dame indigne, permet de comprendre cette possible interaction à un âge avancé.
Combining statistical, structural, and linguistic features for keyword extraction from web pages
Authors: Shah Himat , Fränti Pasi
Published: September 2022

Keywords are commonly used to summarize text documents. In this paper, we perform a systematic comparison of methods for automatic keyword extraction from web pages. The methods are based on three different types of features: statistical, structural and linguistic. Statistical features are the most common, but there are other clues in web documents that can also be used. Structural features utilize styling codes like header tags and links, but also the structure of the web page. Linguistic features can be based on detecting synonyms, semantic similarity of the words and part-of-speech tagging, but also concept hierarchy or a concept graph derived from Wikipedia. We compare different types of features to find out the importance of each of them. One of the key results is that stop word removal and other pre-processing steps are the most critical. The most successful linguistic feature was a pre-constructed list of words that had no synonyms in WordNet. A new method called ACI‑rank is also compiled from the best working combination.
L’atlas de la généralité de Rouen
Authors: Boutier Jean
Published: September 2022

Pour réformer les cadres territoriaux de la perception des impôts royaux, Colbert, en juillet 1679, ordonne aux intendants de faire lever une carte administrative de leur généralité. L’opération concerne, à l’échelle du royaume, l’ensemble des pays d’élections. L’intendant de Rouen, Le Blanc, a laissé une importante documentation, archivistique et cartographique, concernant la réalisation d’un atlas de sa généralité, qui est le premier atlas régional actuellement connu pour la France d’Ancien Régime. L’étude analyse la production de cet atlas, la sémiographie graphique mise en œuvre, les usages qui ont pu en être faits. Il contribue à l’étude d’une mise en carte du royaume inconnue des historiens de l’invention cartographique de la France.
Une vision ottomane du monde
Authors: Débarre Ségolène
Published: September 2022

Comment un atlas voyage-t-il ? Que deviennent les centres et les périphéries qu’il construit ? Quelles sélections, distorsions, omissions émergent de la traduction vers une langue et un contexte politique autres ? En comparant les feuillets d’un atlas réalisé à Istanbul en 1891-1894 avec la version française dont il est issu, nous analysons le processus de traduction, les additions et les transformations du matériel cartographique. Une attention particulière est portée à l’importation de catégories européennes (« ethnies » et « colonies ») qui participent à la construction d’un regard sur le monde et reflètent les projets politiques d’un empire en transformation. La trajectoire des cartographes est révélatrice des circulations et des échanges militaires et scientifiques existant à cette époque entre l’Europe et l’Empire ottoman. Celle de l’atlas donne à voir un processus actif de réception et de reconfiguration des savoirs géographiques européens en même temps qu’une volonté de mise en conformité avec un canon étranger, dont le modèle se situe à l’époque à Paris, Londres et Berlin.
Atlas or Order
Authors: Tolias George
Published: September 2022

The chapter explores the varied layers of meaning that overlapped in Atlas’ image during the late medieval and early modern period, as he embodied the human intelligence of the pattern of the universe. He was associated with the prime mover and the universal axis, and therefore he acted as metaphor for astrological insight and universal knowledge, cosmic order and Divine Providence or even as a metaphor for moral responsibility; cosmographers and astronomers used his image to indicate their task to explore the cosmic rationality. The decay of geocentric astrological cosmology in the sixteenth century transformed Atlas to an emblematic figure of geographical panoptism. The seventeenth- and eighteenth-century commercial cartography retained Atlas’ image as an Earth bearer, which become the trademark for the multivolume collections of maps.
Des atlas du doute ?
Authors: Van Damme Stéphane
Published: September 2022

Parler de « cartographie sceptique », de géographie curieuse, n’a rien d’évident et nécessite au préalable un examen des conditions d’une telle enquête. Comment considérer les cultures sceptiques qui entourent les pratiques cartographiques et la fabrication des atlas à l’époque moderne ? Dans quelle mesure l’atlas a-t-il pu être un genre épistémique fécond pour les savants du doute, qu’on les nomme sceptiques, libertins, matérialistes ? On s’est peu intéressé à la culture géographique sceptique, si l’on excepte les travaux de Frank Lestringant, de Catherine Hofmann ou de Nicolas Verdier sur les impostures cartographiques. Difficiles à traiter comme un corpus homogène, ces usages de l’atlas affleurent et s’intensifient à mesure que les ordres de l’information s’établissent avec plus d’efficacité et de contrôle. Il ne s’agira donc pas de réifier une tradition en sur-interprétant les « distorsions » et les détournements de conventions géographiques ni de projeter des pratiques de dissimulation ou de critique, mais d’ouvrir une discussion sur une pratique prudentielle des outils géographiques durant le règne de Louis XIV et au XVIIIe siècle à partir d’une série de controverses et d’épreuves cartographiques. Nous ne partirons pas d’une définition d’un corpus ou d’une pratique cartographique assignable à un groupe (les « libertins ») car ni la carte ni son auteur ne font groupe. Plus généralement, on cherchera à poser la question de l’économie du soupçon qui pèse sur les entreprises cartographiques et orchestre une forme de suspension du jugement géographique promouvant l’indécision et la double vérité comme norme.
Conoscere attraverso le immagini: genesi e forma degli atlanti
Authors: Cattaneo Angelo
Published: September 2022

From about 1530, a complex conglomeration of social practices of learning, which saw the pivotal role of printed books production, gave rise to a renewal of whole fields of knowledge – from anatomy to architecture, from natural history to geography, to name just a few – through the innovative production and dissemination of ordered and organised corpora of cognitive images. These editorial enterprises had the ambition of mapping and redefining these realms of knowledge through the production of unprecedented cognitive images organised in large corpora. The wide-ranging as well as collaborative efforts of physicians, architects, natural philosophers, cosmographers, artists, engravers and printers, were poured into books generally identified by titles such as atlas, compendium, cosmographia, descriptio, speculum, theatrum, which share the characteristic of being centred on normalised and serial images forming open-ended thematic collections which could be increased ad infinitum. The epistemological turn implemented through this editorial enterprises was rooted into images that were not conceived as illustrations of written or practical knowledge, to which they would play a subordinate role. On the contrary, they were the centre of those fields of knowledge, real lieux des savoirs, onto which numerous practices, relative to the production, organisation, archiving and transmission of knowledge, ultimately converged. This article has two main objectives: in the first place, it aims at shedding light on the intellectual roots and the visual archeology of printed atlases in the early modernity; secondly, it will endeavour to analyse and contextualise the so-called prototypes of geographical atlases – works by Münster, Ortelius, Mercator and Lafreri – in the framework of a far-reaching epistemological shift, specific to early modernity, which went well beyond the domains of geography and cartography. This study will highlight how geographic atlases prined in Northern Europe or in Italy in the sixteenth century were not the prototypes of this innovative book production, but rather became part of a process that had already started many decades earlier, becoming, together with anatomical and architectural treatises, its best and most effective examples of editorial success.
Les formes de la documentation dans la première partie du XXe siècle : atlas ou encyclopédie ?
Authors: Müller Bertrand
Published: September 2022

Un atlas au début du XXe siècle peut prendre des formes et correspondre à des objectifs très différents d’un atlas géographique. L’atlas se présente non seulement comme une collection de cartes mais aussi une mise en scène de la documentation et de la connaissance, une visualisation et un design de la connaissance. Le juriste belge Paul Otlet, théoricien infatigable de la documentation, le sociologue et économiste autrichien Otto Neurath, ou encore l’historien de l’art allemand Aby Warburg ont chacun à leur manière proposé et tenté de résoudre une équation impossible : comment représenter rationnellement la fragmentation des connaissances encyclopédiques et la prolifération des savoirs documentaires.
Global Inequality and Global Crises
Authors: Deo Shilpa , Kumar Senthil , Sharma Sushil
Published: September 2022

The developed, developing, and least developed countries have been experiencing differing levels of inequality over the years. The economic and financial crises have also been aggravating the extent of inequality. The Sustainable Development Goal (SDG) 10 emphasizes reducing inequality that is prevalent within and amongst the countries. The COVID-19 pandemic is expected to reverse the progress made so far in reducing inequality. Hence, the average Gini coefficient is expected to increase by 6% for emerging and developing countries. Therefore, the present study aims to undertake an analysis of the impact of past crises and the current COVID-19 crisis on global inequalities. The world inequality database has been utilized for analyzing the impact. This study will certainly enable the policymakers to implement policies with the help of which the SDG 10 can ultimately be achieved by 2030.
Realizing the Economic Welfare of Farmers
Authors: Yusida Ermita , Qurrata Vika Annisa , Hidayati Bunga
Published: September 2022

During this industrialization era, agriculture is still the key to the economic development of developing countries, such as Indonesia. This chapter aims to see how relevant the current agricultural model is. The method used is the literature review. With the development of digitalization, agriculture in Indonesia, which still uses little technology, must be encouraged to be more technologically literate. In the future, the government must pursue agricultural digitalization to increase the level of farmer welfare so that agriculture can become a driving sector for industrialization and economic growth.
Color Stability of Colored Concrete over Time Depending on the Type of Pigment
Authors: Utěšená Monika , Pernicová Radka
Published: September 2022

Colored concrete is widely used in contemporary architecture due to its aesthetic potential. Adding a color pigment to the concrete mix opens up for architects other possibilities for work with concrete. They are no longer limited by its natural gray color. Choosing the right type of pigment is essential for quality and long-term satisfaction with the final work, while it is necessary to be aware of certain limits resulting from the natural behavior and nature of concrete. The article characterizes an overview of pigments suitable for coloring concrete mixtures and demonstrates the change in color saturation after exposure to weathering over time. The measurement was performed on experimental concrete samples stained with yellow, red and green pigments
Influence of Moisture and Density of Wood on the Depth of Holes Made by a Kučera’s Drilling Machine
Authors: Černý Pavel , Frimlová Eva , Heřmánková Věra
Published: September 2022

In some cases, it is not possible to diagnose wood quality using destructive methods. This requires the use of non-destructive and semi-destructive methods which do only slight damage to the structure of the wood. Kučera’s drilling machine, which is commonly used to diagnose masonry constructions, may be a gentler method. This drilling machine for masonry construction has been tested on wooden constructions with different moisture levels. Moisture itself plays an important role in wood as it influences the physical and mechanical properties of the material. The way the wood structure is saturated may also be an important factor. This paper gives an overview of the properties of wood at a various levels of saturation achieved using a climatic chamber. This method should ensure higher-quality wood saturation and therefore lower deviations in measured values.
Spectral Splitting Optimization for Highly Efficient Hybrid Photovoltaic Devices by Using Na3AlF6, Y2O3 and TiO2 Beam Splitter
Authors: Faiza Syeeda Hafiza , Nowsherwan Ghazi Aman , Khan Mohsin , Azhar Muhammad , Ahmad Imran , Zaib Aurang , Hussain Syed Sajjad , Riaz Saira , Naseem Shahzad
Published: September 2022

This research study utilises Essential Macleod software to optimize beam splitter for efficient hybrid photovoltaic application. The spectral splitting was carried out by alternating multilayer coating designs having Na3AlF6 as low index material, Y2O3 as middle index material and TiO2 as high index material. The wavelength range of optimized design was selected from 400 nm to 1000 nm with reference wavelength 510 nm at an incident angle of 45. The beam splitter model comprises 56 alternating layers based on the formula [LMHM]14. The Optimac refinement approach is used to enhance the modelled structure. Different built-in analysis techniques in the essential Macleod package are also used to analyze our design, like density, total absorptance and admittance diagram. It is concluded that the modelled beam splitter transmits about 90% light in the visible spectrum range and reflects 90% light in the infrared region, which is very useful for an application like solar cells and the thermoelectric generator.
A Study of Aluminum Doped ZnO Thin Films Developed via a Hybrid Method Involving Sputter Deposition and Wet Chemical Synthesis
Authors: Ahmad Mohammad , Khan Zuhair , Ur Rehman Mian Muneeb , Ali Asghar , Aslam Shaheer
Published: September 2022

Transparent conducting oxides (TCO) are semiconducting materials that are electrically conductive as well as optically transparent thus making them suitable for application in photovoltaics, transparent heat transfer windows, electrochromic windows, flexible display, and transparent electronics. One of the methods to enhance the conductivity of metal oxides is doping, however, it can adversely affect the optical transparency of metal oxide. Aluminum (Al) doped zinc (Zn) oxide (AZO) is an important TCO material whose optoelectronic properties heavily rely on the Al doping level. There are various methods to develop AZO thin films. However, since Al and Zn are high vapor pressure materials, and their precise content control isn’t that easy, that’s why we dedicated this study to devise a facile method of Al doping into the ZnO structure. We report a twostep synthesis route to develop AZO thin films over glass substrates. Sub stoichiometric zinc oxide (ZnOx) thin films were sputter deposited over glass employing RF magnetron sputtering at 70W and 9 x 10-3 Torr Ar pressure. To mitigate Zn losses during annealing at 450 °C, the films were first oxidized up to 200 °C in air so as to convert ZnOx into stoichiometric ZnO. To incorporate Al into the ZnO structure, Al was spin coated on top of ZnO from its stabilized sol of 0.07 molar aluminum nitrate nonahydrate in ethanol. The samples were subsequently annealed at 450 °C for 2h in air with a controlled heating ramp of 3 °C/min. The film morphology, microstructure, electronic, and optical characteristics were explored employing scanning electron microscopy, energy dispersive x-ray spectroscopy, Hall effect measurements, and UV-Vis-NIR spectrophotometry, respectively. We found that both the Al and oxygen (O) content affect the optoelectronic behavior of AZO. Even without Al doping, O deficient samples were found to be sufficiently conductive, however, the ZnOx is less transparent relative to O rich stoichiometric ZnO. Furthermore, if ZnOx is annealed at higher temperatures, it causes Zn losses, since Zn is a relatively high vapor pressure material. It degrades the film morphology as well. Once we have ZnO we can confidently treat it at 450 °C to allow Al diffusion into the interiors of the ZnO film. We found that AZO produced via this method is sufficiently conductive as well as transparent.
Adsorption of Methylene Blue Using Tea Waste Treated with Alkaline-Potassium Hydroxide
Authors: Bahari Shariena Shamsul , Jahid Fify Nursuhanti , Lian Yuen Mei , Ramli Ros Azlinawati , Ling Lee Siew
Published: September 2022

Textile dyes which are known to be poisonous, mutagenic, and carcinogenic to human health and the environment are found in water bodies, posing a severe environmental threat. The well-known adsorption approach, which uses low-cost agricultural waste as an adsorbent, has recently been extensively explored for water remediation. The ability of tea waste (Camellia Sinensis) species treated with alkaline-potassium hydroxide (KOH) to adsorb methylene blue (MB) dye from dye-contaminated wastewater was investigated. The influence of experimental parameters including pH, initial dye concentration and contact time, temperature and adsorbent dosages on the alkaline-KOH treated tea waste adsorption process were studied. SEM and FTIR were used to characterize the KOH treated tea waste adsorbent. The pH 10 condition was shown to be the best for attaining the highest percent of methylene blue removal. The optimal adsorption for methylene blue was greatly detected at 120 minutes of 100 mg/L. The removal of methylene blue was excellent at a temperature of 60 °C and 0.1 g of KOH treated tea waste dose was chosen as the most favourable for the adsorption of methylene blue. Finally, the synthetic wastewater was examined under optimal conditions and recorded 97 % methylene blue removed.
Corrosion Properties and Bond Strength of Coated (PE/PAK; Pe/PPE; PAD) Reinforcement (B500B) with Normal Strength Concrete
Authors: Pokorný Petr , Prodanovic Nikola , Hurtig Karel , Holeček Martin
Published: September 2022

The paper verifies anti-corrosion barrier protective properties of PE/PAK (polyethylene/polyacrylate), PE/PPE (polyethylene/polyproplylene) and PAD (polyamide) coatings of specific thickness on the surface of conventional ribbed bar B500B. Using pull-out test, the bond strength of such system was compared with bond strength of normal strength concrete (C30/37). Results of these tests show that key properties of coated systems are comparable to the previously tested epoxy coatings in case of their use in technical practice (protection of conventional rebar). In conclusion, their effective protective effect corresponds to minimal thickness higher than 300 μm but simultaneously lower the bond strength between the ribbed rebar and concrete. Keywords: corrosion of steel in concrete, organic coatings, bond strength, pull-out test, porosity
Thoracic follicular dendritic cell sarcoma - an outlandish presentation of a rare tumour with review of literature
Authors: V Vinay , Bansal Saraansh , Purwar Pallavi , Dewan Ravindra Kumar , Verma Paras , Mullick Shalini , Dixit Mallika , Phanindra B Rama , Siddhartha Kanishk
Published: September 2022

Follicular dendritic cell sarcoma is a rare low grade malignant neoplasm that arises from follicular dendritic cells in lymphoid tissue germinal centres and accounts for 0.4% of all soft tissue sarcomas. It is extremely rare to have pulmonary follicular dendritic cell sarcoma with endobronchial extension and as an anterior mediastinal mass with mediastinal lymph node involvement. We present the case of a 34-year-old male non-smoker who had been experiencing chest pain for three months. A lobulated left peri-hilar mass with endobronchial spread into the left main bronchus and mediastinal lymphadenopathy was identified on a chest CT. The bronchoscope-guided cryobiopsy of the endobronchial mass was inconclusive. After a thorough multidisciplinary discussion, the patient underwent left sided pneumonectomy, mediastinal mass resection, and systematic lymph node dissection. Histologic examination using immunohistochemistry revealed follicular dendritic cell sarcoma.
Isolated axial lateropulsion caused by an acute lateral medullary infarction involving the dorsal spinocerebellar tract
Authors: Sparaco Marco , Addonizio Maria Carmela , Apice Giancarlo , Cafasso Giuseppina , D'Alessio Amedeo , Iasi Gabriella Di , Muccio Carmine Franco
Published: September 2022

Lateral medullary syndrome encompasses a broad spectrum of symptoms and signs depending on the bulbar localization of the lesion. Body lateropulsion (BL) can occur without vestibular and cerebellar symptoms, as a unique manifestation of a lateral medullary infarction. However, it is relatively rare and challenging to diagnose. We report a case of a 72-year-old woman who presented with a tendency to fall to the right. She denied having vertigo, cerebellar signs, sensory loss, or motor weakness. No signs of vestibular dysfunction were found on the ENT examination. Neurological evaluation was unremarkable, except for mild ataxia of the right limbs along with BL to the right side when standing and walking. Brain magnetic resonance (MR) imaging showed an acute small infarct in the right lateral aspect of the medulla extending from the rostral to the caudal level. MR angiography found no stenosis or vascular occlusions. We believe that ipsilateral axial lateropulsion shown by our patient may be related to a selective ischemic lesion of the dorsal spinocerebellar tract in its medullary course. A lateral medullary infarction should be seriously considered in patients who present with isolated BL without further signs of bulbar involvement.
Disability Following COVID-19: A Cross-Sectional Study at an Apex COVID Care Hospital of Central India
Authors: Nandi Jaydeep , Yadav Rajkumar , Lakhiya R. , Akshay Anusree
Published: September 2022

Purpose:

This study was done to assess the extent of disability in COVID-19 survivors using the World Health Organization Disability Assessment Schedule 2.0(WHODAS 2.0) and to identify the predictor variables.

Methodology:

Patient recruitment for this cross-sectional study started after ethical clearance. Most of the recruited patients were telephonically invited from medical records data of institutional COVID-19-admitted patients. All patients aged 18years or above, who recovered from COVID-19 infection at least 3months back, were recruited in the study after fulfilment of other inclusion and exclusion criteria. Informed consent of each recruited patient was taken and disability assessment was done using WHODAS 2.0.

Results:

Fifty patients were enrolled in the study, and the mean WHODAS 2.0 score was found to be 35.49(0=no disability; 100=full disability), the most involved subdomains being getting around(mean=45.524), life activities(mean=42.8692), societal participation(mean=42.8095) and understanding–communicating(33.568). The overall WHO DAS-2 score was significantly higher in the above 45-year age group, recent follow-up patients(3months completed but<4months) and those having comorbidities(all comorbidities combined as well as diabetes alone). On the other hand, no such relationship could be established with gender, educational status, duration of COVID-19 admission, smoking history, body mass index categories, family size or family income. Furthermore, the effect of age and follow-up interval to the severity of disability was contributing only 6.58% on multiple linear regression analysis. Seventy per cent of respondents had moderate-to-extreme difficulty with walking a long distance, 60% had similar difficulty in standing for long periods, 54% in day-to-day work/school responsibilities, 60% in joining community activities and 58% were emotionally affected by their health problems.

Conclusion:

COVID-19 survivors suffered from significant disability even after 3months of disease, especially amongst aged persons with pre-existing comorbidities; the severity of disability was significantly higher in those who have just completed 3months in comparison to higher follow-up intervals. It was concluded that recognising post-COVID-19 sequelae and the initiation of rehabilitation services can be beneficial in preventing disability after acute COVID-19.
Clinical Presentation and Rehabilitation Outcome in a Case of Spastic Ataxic Syndrome Post-COVID-19 Infection
Authors: Ranga Anurag , Sannyasi Gourav , Khanna Meeka , Gupta Anupam , Prakash Navin B.
Published: September 2022

In this report we describe a case of first episode of spastic cerebellar ataxia post COVID-19 infection, its clinical presentation, and treatment and rehabilitation outcome. The ataxia was generalized and multifocal with an acute onset within two weeks of infection. This case report highlights the need of early rehabilitation along with medical treatment in spastic ataxic syndrome post Covid-19 infection.
An Anatomical Description of the Obturator Region with Clinical Aspects
Authors: Šaherl Lidija Kocbek , Rakuša Mateja
Published: September 2022

Structures surrounding the obturator foramen, the obturator internus and obturator externus muscles and regional neurovascular bundle, the obturator artery, vein, and nerve, pass through from the lesser pelvis into the medial compartment of the thigh and build up the obturator region. The region is demanding and complex both in terms of anatomical and clinical points of view. This article aims to write an overview of the obturator region about normal and variant anatomy and relate its various parts to their importance in clinical practice. The connections between various anatomical structures, concerning their different critical sites in the obturator region, as well as a thorough overview essential for clinicians, especially surgeons, are discussed.
Counting irreducible modules for profinite groups
Authors: Corob Cook Ged , Kionke Steffen , Vannacci Matteo
Published: September 2022

This article is concerned with the representation growth of profinite groups over finite fields. We investigate the structure of groups with uniformly bounded exponential representation growth (UBERG). Using crown-based powers, we obtain some necessary and some sufficient conditions for groups to have UBERG. As an application, we prove that the class of UBERG groups is closed under split extensions but fails to be closed under extensions in general. On the other hand, we show that the closely related probabilistic finiteness property

\mathrm{PFP}_1

is closed under extensions. In addition, we prove that profinite groups of type

\mathrm{FP}_1

with UBERG are always finitely generated and we characterise UBERG in the class of pronilpotent groups.

Using infinite products of finite groups, we construct several examples with unexpected properties: (1) a UBERG group which cannot be finitely generated, (2) a group of type

\mathrm{PFP}_\infty

which is not UBERG and not finitely generated, and (3) a finitely generated group of type

\mathrm{PFP}_\infty

with superexponential subgroup growth.
ROADS TO POLLUTION: BRAZIL´S AQUATIC BIODIVERSITY AFFECTED BY TRUCK LEAKS
Authors: Azevedo-Santos Valter Monteiro , Daga Vanessa Salete , Fearnside Philip Martin
Published: September 2022

Roads are responsible for various negative impacts on terrestrial and aquatic biodiversity. However, the negative effects of roads used by vehicles on aquatic biodiversity have been little explored. In this study, based on reports obtained from digital media and technical reports, we provide an overview of the pollution in Brazilian aquatic ecosystems caused by leakage from trucks. We found 73 truck leaks that reached Brazilian waterbodies, polluting them with fuel, pesticides and other substances. Pollution events caused the deaths of crustaceans, fish, and other vertebrates. According to the data obtained in our search, fish were the most impacted group, with records of at least 20 tons killed from a single spill. Measures must be adopted to prevent the entry of pollutants into waterbodies through truck leaks.
NON-VOLANT MAMMALS OF THE SERRA DA MACACA PARK ROAD (SP-139), SOUTHEASTERN BRAZIL
Authors: Alves Francisco de Assis , Teixeira Carlos Roberto , Barbosa Luciano , Júnior Jairo Alves
Published: September 2022

The objective of this study was to survey non-volant mammals at Serra da Macaca Park Road (SP-139), particularly during road daily closure. Visual searches and camera traps were used to record mammals, and estimator Jackknife to estimate the expected richness. Differences in diversity were calculated using the Shannon-Wiener index (H’). In total, 12 species of non-volant mammals, four of them considered threatened, were sampled. Additionally, roadkills of the non-volant mammals were recorded too. The absence of some predominantly nocturnal species from the list of the roadkilled non-volant mammals was noticeable. The results highlight the importance of the temporary road closures, during periods of high mammal activity.
MAMÍFEROS DE MÉDIO E GRANDE PORTE DO PARQUE ESTADUAL DO IBITIPOCA, LIMA DUARTE – MG
Authors: Ferreira Giovanne Ambrosio , Amorim Darlei Marques de , Nobre Pedro Henrique
Published: September 2022

O Parque Estadual do Ibitipoca (PEIb), Minas Gerais, Brasil, e o seu entorno, é uma área protegida onde habitam mamíferos ameaçados de extinção (e.g. muriqui-do-sul Brachyteles arachnoides, lobo-guará Chrysocyon brachyurus e puma Puma concolor). Apesar do conhecimento da ocorrência dessas espécies no PEIb, não há uma lista completa de mamíferos de médio e grande porte. Portanto, foi realizado o levantamento destas espécies nos ambientes de campos rupestres e fragmentos florestais do PEIb, tilizando-se 2.097 armadilhas fotográficas/dia, investigação de pegadas, vocalizações, fezes e registros visuais. Identificadas 18 espécies (oito ordens e 14 famílias), seis destas classificadas como ameaçadas de extinção em algum nível (estadual, nacional ou mundial). Embora reduzidas, as áreas de florestas naturais apresentaram riqueza de espécies relativamente maior que as demais áreas amostradas. O PEIb, com seus fragmentos florestais e complexo e diversificado mosaico de ambiente, tem um grande potencial e importância na preservação da mastofauna local da região.
Immune response against DNA- and mRNA vaccines encoding artificial influenza virus immunogens
Authors: Starostina E. V. , Sharabrin S. V. , Rudometov A. P. , Litvinova V. R. , Borgoyakova M. B. , Bazhan S. I. , Ilyichev A. A. , Karpenko L. I.
Published: September 2022

Constant antigenic drift of circulating influenza viruses leads to inefficiency of seasonal influenza vaccines, thus requiring annual re-design of these vaccines. Therefore, the development of a universal influenza vaccine is of particular relevance. A promising line of research in this area is to design the immunogens consisting of conserved protein fragments from different influenza viral strains. The aim of this work was to assess immunogenicity of DNA vaccines and mRNA vaccines encoding artificial antigens consisting of conserved hemagglutinin stem fragments and conserved M2 protein. We have obtained DNA vaccine constructs encoding artificial immunogens AgH1, AgH3, and AgM2, which contained conserved fragments of the hemagglutinin stalk from the two subtypes of influenza A H1N1 and H3N2, and conserved M2 protein. These DNA vaccines were used as templates for the synthesis of mRNA vaccines. To assess immunogenicity of the obtained constructs, BALB/c mice were immunized with DNA and mRNA vaccines by i/m administration. Assessment of the humoral immune response was carried out by ELISA, using influenza viruses A/Aichi/2/68(H3N2), A/California/07/2009 as antigens and the ULTRIX vaccine containing purified antigens of H1N1 and H3N2 influenza viruses. T cell immune response was assessed using two methods: intracellular cytokine staining (ICS) and ELISpot. ICS was performed to determine CD8+ and CD4+T-lymphocytes producing IFN. ELISpot was carried out using the mouse IFN ELISpot kit (BD). A peptide mixture which included composition of the target antigens, was used for cell stimulation. The results showed that the designed DNA vaccine constructs induce virus-specific humoral and cellular responses in immunized BALB/c mice. Intramuscular administration of the naked mRNA vaccine constructs induced a weak humoral immune response, thus suggesting a need for further work to improve the delivery approaches.