bluuebunny/crossref_metadata_2025_split huggingface dataset:
Avortements sélectifs, naissances instrumentales et la règle d’arrêt
Authors: Baland Jean-Marie , Cassan Guilhem , Woitrin François 
Published: May 2023

La règle d’arrêt, par laquelle les parents s’efforcent d’obtenir un nombre spécifique d’enfants de chaque sexe, mène à des avortements sélectifs et à la naissance d’enfants instrumentaux. Par de nouvelles mesures, nous testons et quantifions l’importance relative de ces deux pratiques dans le monde. Codes JEL : J13, J16, O10.
Instabilité des préférences au cours du temps au Burkina Faso
Authors: Boutin Delphine , Petitfour Laurène , Kountoubre Souleymane , Allard Yvonne 
Published: May 2023

À l’aide de données de panel, nous montrons que les préférences pour le risque et l’impatience d’un même individu se sont modifiées entre janvier 2020 et janvier 2022 au Burkina Faso. Codes JEL. : D9, C93, I18, O55.
La profondeur des accords commerciaux régionaux affecte-t-elle les échanges internationaux de services ? Un point sur la région MOAN
Authors: Guillin Amélie , Rabaud Isabelle , Zaki Chahir 
Published: May 2023

Les accords commerciaux profonds stimulent les échanges de services. Cet impact est d’autant plus important que les institutions des partenaires commerciaux sont similaires. Ce dernier effet ressort particulièrement pour les pays en développement, comme le montre l’exemple des pays du Moyen-Orient et de l’Afrique du Nord. Codes JEL : F10, F14, L80.
Les élections : facilitateur ou obstacle à l’activité des entreprises en Afrique ?
Authors: Cazals Antoine , Léon Florian 
Published: May 2023

L’approche des élections constitue une période critique et contrastée pour les entreprises en Afrique : la corruption et l’instabilité politique contraignent davantage leur activité, qui bénéficie par ailleurs de meilleurs services, tels que l’électricité, le transport et l’ordre public. Codes JEL : D72, 016, E32.
Expériences et opinions liées à l’insécurité : une analyse des biais déclaratifs au Mali
Authors: Bertelli Olivia , Calvo Thomas , Lavallée Emmanuelle , Mercier Marion , Mesplé-Somps Sandrine 
Published: May 2023

Nous menons une enquête expérimentale par comptage de réponses sur les expériences et opinions liées à l’insécurité dans un État fragile, le Mali. Celle-ci révèle d’importants biais dans les réponses directes, notamment concernant les avis sur les forces armées. Codes JEL : C83, O12.
Accès à l’assurance et aux réseaux d’entraide de migrants en Russie
Authors: de Talancé Marine , Pellet Sandra 
Published: May 2023

Population vulnérable, les migrants centrasiatiques en Russie participent à des réseaux d’entraide informels qui complètent une éventuelle assurance formelle en couvrant d’autres risques et en jouant aussi un rôle social dépassant la logique assurantielle. Codes JEL : O15, I13.
Le statut juridique des aidantes et des aidants. La situation française au regard du droit européen
Authors: Martin Philippe 
Published: May 2023

Le rôle assumé par les aidantes et aidants auprès des personnes handicapées ou des personnes âgées fait l’objet de l’attention du législateur, tant au plan national qu’européen. Un statut des aidants se cherche, autour de plusieurs questions : reconnaissance du travail de l’aidant et ouverture de droits sociaux ; conciliation de l’aide avec une activité professionnelle salariée ; santé de l’aidant. Le droit européen appréhende cette problématique selon un prisme particulier, qui tient au fait que l’Union européenne n’est pas juridiquement outillée pour imposer un cadre commun aux politiques sociales nationales. Le droit français s’est dès lors construit de manière relativement autonome par rapport au droit européen. Pour l’heure, le « statut » des aidants demeure fragmenté et peu lisible en France, en raison essentiellement de la prégnance d’une logique sectorielle qui distingue handicap et dépendance et cloisonne les catégories juridiques.
« Avoir le choix » : un enjeu de l’éducation contemporaine qui n’est pas sans conséquence psychopathologique…
Authors: Marcelli Daniel 
Published: May 2023

Qu’est-ce que choisir ? Classiquement, un compromis entre le désir inconscient et la rationalité psychique. Chez l’adolescent d’aujourd’hui, le plan narcissique l’emporte sur l’objectal, ce qui implique que la transmission évolue dans son mode opératoire. Parentale, familiale, culturelle, religieuse, sociale, celle-ci construit l’adolescent. La clinique nous montre une évolution des modes de construction de ce dernier. Un détour par Aristophane permet d’analyser le refus de choisir son sexe chez les jeunes « a-genre », « neutre » ou « bi genre », en évitant l’amalgame avec les « transgenres ». Ainsi, il n’y a pas de médicament pour traiter le « refus de choix ». Un accompagnement psychothérapeutique permet à l’adolescent actuel de contourner la « fatigue de soi » et le refuge dans la passivité.
Trajectoires
Authors: Cerutti Gaëlle 
Published: May 2023

Cet article propose de réfléchir à la situation de deux jeunes enfants, Tiago et Timéo, alors placés par ordonnance judiciaire dans une Maison d’enfants à caractère sociale. L’hypothèse principale à notre réflexion sera de soutenir que le maintien des droits de visite libres au domicile des parents dans le cadre du placement est le résultat d’une approche et d’un état d’esprit seulement objectivant posé sur la situation de cette famille. En filigrane, nous proposons de penser que le pli de la pédopsychiatrie donné aux origines de cette situation a contaminé celui de la protection de l’enfance et avec lui, le monde de la justice et des services sociaux, « tournés en rond » et tous ensemble vers la rééducation de ces enfants et l’aide apportée aux parents. Nos hypothèses de pensée nous conduiront à l’abord des notions et idées suivantes : le mimétisme des dispositifs sociaux — La bascule vers l’ouverture au contact d’une altérité compréhensive — L’émergence de la subjectivité écrasée — Le contact séparant.
Constructions of the gaucho as vagrant and idle and as a born criminal: Portraits of Juan Moreira (Argentina, 19th and 20th centuries)
Authors: Miranda Marisa A. 
Published: May 2023

This article examines aspects of the discourse of power by which the figure of the Argentine gaucho was labeled as a “vagrant and idle” subject, based on the study of the archetypical Juan Moreira. In particular, the article explores analyses carried out decades after his death, influenced by the theories of Cesare Lombroso and Nicola Pende. Born in 1829 and killed at the hands of the police in 1874, Moreira became an emblematic personality of local folklore. Although his life has been the subject of extensive literary analysis, largely focused on the publication of Eduardo Gutiérrez’s novelistic portrayal, there has not been as much focus on the attempt to validate scientifically his stigmatization using the theories of these Italian thinkers. This text, therefore, explores readings of Juan Moreira carried out during the 20th century by two doctors, José Ingenieros and Nerio Rojas. In methodological terms, triangulation techniques were used, taking as vertices the legislation in place at that time, the interpretations of his life made through his transformation into a literary and film character, and finally, the aforementioned psychodiagnostic evaluations based on the integration of hypothetical environmental and innate characteristics.
Álvaro da Costa’s journey to Persia and Turkey (1611), the ruins of Babylon, and the riddles of globalization
Authors: Martínez Bermejo Saúl 
Published: May 2023

This article analyzes Álvaro da Costa’s return trip from the Estado da Índia to Lisbon in 1611. The constraints of Costa’s travel allow us to discuss some common assumptions about the character and spirit of early modern travelers and to illustrate some of the limits of travelers’ observations and the peculiar modes of knowledge they displayed. Reading through the many misunderstandings and apparent mistakes that Costa introduced in his Tratado da viagem, the article also explores the complex dynamics of “discovery” and argues that early modern globalization must be understood as a manyfold process. Individuals not only disposed of different information, but they also used very diverse frameworks to interpret and make sense of such information. The article contrasts Costa’s use of older but resilient interpretative frameworks with more modern and more accurate interpretations and shows that very different perceptions about world connections coexisted during the early modern age. In particular, the article focuses on how Costa actively combined his observations of the ruins of Babylon and other cities he found on his route with previous paradigms of universal history, such as biblical theories on the historical succession of empires.
Redes sociales en bibliotecas. Un análisis bibliométrico en el ámbito iberoamericano
Authors: Retuerto-Marzano Lizette , Castro-Cordova Elisabeth P. , Kessler María Inés , Limaymanta Cesar H. 
Published: May 2023

En la actualidad, vivimos en una época de avance tecnológico constante, donde el uso de las redes sociales en los sistemas de información es esencial para tener mayor alcance a los usuarios. Este estudio realiza un análisis bibliométrico de la producción científica sobre redes sociales en bibliotecas en Iberoamérica que se encuentra indexada en la base de datos Scopus durante el período 2007-2021. Se analizan 76 publicaciones mediante indicadores de producción, colaboración, impacto y de análisis estructural temático. Los resultados muestran que la producción científica sobre redes sociales en bibliotecas ha tenido un crecimiento irregular durante este período; los autores y revistas españolas presentan una mayor productividad; las publicaciones en revistas de EE. UU. o Reino Unido mejor posicionadas tienen mayor impacto; y existe un bajo nivel de colaboración científica. Además, predominan los estudios enfocados a bibliotecas universitarias o académicas, aunque aparecen también aplicados a todo tipo de bibliotecas.
Exploring the collaborative care of patients with pelvic fractures in Tshwane, South Africa
Authors: Sobantu Ntombenkosi A. , Tshabalala Muziwakhe D. , Chetty Verusia 
Published: May 2023

Background: Pelvic fractures are complex injuries that lead to long-term disabilities and poor health-related quality of life (HRQoL). Even though pelvic fractures are known to be challenging to manage, there is limited information on guidelines and protocols to ensure that patients receive comprehensive and collaborative healthcare.Methods: A qualitative descriptive phenomenological approach was utilised to explore current practices and innovations of healthcare professionals (HPs) in Tshwane academic hospitals in the collaborative management and rehabilitation of patients with pelvic fractures, using semi-structured interviews. Thematic analysis was used to analyse data.Results: Six overarching themes were identified from the interviews with HPs: The biopsychosocial lens of the patient, limitations in approaches to care, contextual impediments to care, the team challenge; the biopsychosocial aspects of care and forging forward to improve care.Conclusion: A multidisciplinary approach is encouraged for the comprehensive management of pelvic fractures. However, a poor understanding of roles and poor referral structures challenge this approach. Further barriers to caring include staff shortages and limited resources. Healthcare professionals recommended interprofessional education and collaborative practice, student training and using standardised outcome measurement tools to improve care for patients with pelvic fractures.Contribution: This study lays a foundation to initiate conversations about the development of an interprofessional model of care for patients with pelvic fractures. Findings might inform health policies on the management of pelvic fractures. Healthcare professionals might apply strategies that enhance the quality of healthcare provided. Patients with pelvic fractures might receive quality interprofessional healthcare that promotes quality of life, post pelvic fractures.
Diagnostic Accuracy in Quantitative Evaluation of Attenuation of Pulmonary Thrombus on Noncontrast Computed Tomography Scan
Authors: Abhiram P. S. , Masimade Suresh B. , Sushaal C. R. 
Published: May 2023

AbstractObjectives:The objective is to assess the role of noncontrast computed tomography (NCCT) in the identification of pulmonary thromboembolism (PTE) using the difference in attenuation value between thrombus and blood pool and to establish its diagnostic accuracy.Methods:A single-center retrospective analysis was carried out for 1 year among the patients of all age groups who were referred for imaging workup with clinical suspicion of pulmonary embolism (PE). A standard protocol was followed for all the patients undergoing computed tomography pulmonary angiography (CTPA). The diagnosis of PE was based on the direct visualization of the intraluminal thrombus as complete/partial filling defect on CTPA. The average attenuation value of the thrombus on NCCT was measured retrospectively after referring to its position on the corresponding enhanced scans. The difference in attenuation of the pulmonary vessels with and without the thrombus was calculated on NCCT. The data was utilized in the generation of receiver operator characteristic curve to obtain the best cut off level for attenuation differences of the vessels and its accuracy in detecting PTE was determined.Results:Among the study population of 50 subjects, the mean age was found to be 42 years in our study with male sex (72%) having more preponderance to PTE than female sex (28%). The average blood pool range was between 20 and 60 Hounsfield unit (HU). The mean of differences in attenuation between thrombus and blood pool was 34.07 HU. The optimal cut off level for PE affection proved to be difference in attenuation of the pulmonary arteries of more than 20 HU. The sensitivity and specificity were 89.47% and 83.33%, respectively.Conclusion:In clinically suspected cases of PTE, CTPA is the most reliable diagnostic tool. However, with plain computed tomography itself, considering the difference in attenuation values, the thrombus can be identified in majority of the cases thereby reducing the exposure to radiation and contrast to the patients.
Determination of electric power generation potential of Abuja’s municipal solid wastes
Authors: Ondachi P.A. , Ozigis I.I. , Zarmai M.T. 
Published: May 2023

Electric Power Generation Potential of Municipal Solid Wastes (MSW) in Abuja, the capital city of Nigeria has been studied in this work. A pilot study on waste generation activities in Galadimawa District of Abuja was carried out and the results were applied to the metropolis as a whole due to the observed similarities in the demographics of Galadimawa and other Districts in the metropolis. The city of Abuja presently has an annual MSW generation rate of 973,557 tons with a per capita generation of 0.77 kg/day. Waste fractions for the metropolis were also analysed and discounting materials that have recycling value, energy bearing fractions of organic and textile wastes were found to be 59.5%. This translates to 579266.42 tons per annum and with an aggregate higher heating value (HHV) of 15.84 MJ/kg for this fraction, this approximates to about 9.2 x 109 MJ/annum of realisable energy. Using a typical waste-to-energy (WTE) plant efficiency of 44% it is seen that Abuja’s MSW can support a power generating plant with a capacity of 128 MW. This potential far exceeds the energy being presently delivered to Abuja city from the national grid which is about 80 MW.
Recovery of manganese and zinc from spent zinc-carbon dry cells via sulphuric acid leaching using glucose as reductant
Authors: Sanda O. , Ilesanmi O.J. , Taiwo E.A. 
Published: May 2023

The recovery of manganese and zinc from spent zinc-carbon dry cells using sulphuric acid and glucose as the leaching medium and reducing agent respectively was studied to determine the optimum processing parameters for increasing the recovery of the manganese content. Leaching tests were done using the Response Surface Methodology with the process variables being leaching time, temperature, acid concentration and glucose dose. Regression equations were obtained from the experimental data for the extraction of manganese and zinc, and the main effects and interactions from the leaching studies were investigated by the analysis of variance (ANOVA). Experimental results indicate that the dissolution of the battery materials depends largely on the leaching temperature and glucose dose, with the optimum yield of manganese and zin-c being 81.93 and 98.43 %, respectively corresponding to a leaching temperature of 70oC, leaching time of 150 min, sulphuric acid concentration of 4 M and glucose dose of 0.5 g/L.
A trust, privacy and security model for e-commerce in Nigeria
Authors: Akinola O. , Asaolu O. 
Published: May 2023

Today, digital technologies has permeated every sector of human life from communication to medicine to education to transportation and most recently shopping.. The mode of buying and selling by Nigerians have moved from traditional to digital, whereby consumers buy and sell goods online. The online presence of commerce is known as Electronic commerce or E-commerce and it is an initiative amongst other emerging digital sectors in Nigeria that has witnessed substantive growth recently. However, the issues of security, privacy of data and the trust endeared by users on the initiative remains a challenging one. Presently in Nigeria, the solutions to combat security concerns of E-commerce are technically inclined and therefore do not sufficiently capture the solution paradigm. Due to a rise in these E-commerce‘s security-related concerns in Nigeria as discovered by taking random samples of the population used for the survey, this research proposes a Security, Trust and Privacy model for the survival of E-commerce in Nigeria.
Spatial and Temporal Solar Potential Variation Analysis in Uganda Using Measured Data
Authors: Katongole Daniel N , Nyeinga Karidewa , Okello Denis , Mukiibi Daniel , Mubiru James , Kisira Yeeko 
Published: May 2023

The paper presents an analysis of spatial and temporal solar potential variations in Uganda. The solar radiation potential distribution was investigated based on measured data from 56 ground meteorological stations across Uganda from January 2015 to February 2022. The data were recorded after every 5-minute interval. The monthly average daily Global Horizontal Irradiance (GHI) was analysed using the spatial inverse distance weighting (IDW) interpolation technique in ArcGIS 10.7.1. The GHI distribution was found to have maxima at equinox and minimum between June and July. The average global horizontal irradiation is found to be 1680 KWh per year, with a daily variability below 10%. This is above the threshold for solar energy applications and with such low variability, large scale solar PV plants can be installed with minimum backup requirements. Northern Uganda receives the highest average daily global horizontal irradiation of 5.38 Whm–2 day–1, while Western Uganda receives 4.16 Whm–2 day–1, the lowest. The average AM/PM ratio depicted a value above 2 for all regions in Uganda and therefore, optimal solar energy exploitation for fixed systems favours eastern orientation. The central, eastern and northern Uganda which is 69.3% of the country has relief favourable for large scale solar PV power plants and CSP facilities.
Keywords: GHI, IDW, Global solar radiation, Solar insolation, PV power plants, Uganda
Effects of Climate Change, Land Use and Land Cover Variability on Green and Blue Water in Wami/Ruvu Basin, Tanzania
Authors: Lazaro Benson HM , Hagai Martine M , Mato Rubhera RAM 
Published: May 2023

Water basins are the primary food sources, giving green water and blue water worldwide. Despite the basins’ potential, information on the periodical variations in blue water and green water is sparse, particularly in developing countries. The study specifically evaluated the changes in land use and land cover variability (LULCV), effects of land use and land cover variability on green water and blue water variations, and effects of climatic changes on green water and blue water. The evaluation involved the Enhanced Thematic Mapper and Operational Land Imager satellite images of 1990, 2000, 2010 and 2020. Image processing utilized the Soil and Water Assessment Tool (SWAT) in ArcGIS software. The land use and land cover variabilities indicated that land use supporting social-economic activities increased, while natural land cover decreased. Proportionally, blue water per annum was decreasing due to declining natural vegetation, enhanced by the increased socio-economic activities. Whereas, the increase in green water per annum was due to the increased temperatures, boosted by climate changes. Since the temperature rise is mainly uncontrolled, greenhouse farming should be encouraged for making green water more productive in agriculture and communities should be encouraged to practice environmentally friendly anthropogenic activities for sustainable green water and blue water management.
Keywords: Basin, Green water, Blue water, SWAT model, Climate change
Ethanol Extracts from Selected Tanzanian Medicinal Plants Selectively Inhibit Plasmodium falciparum Growth In Vitro
Authors: Christopher Robert , Msonga Amina , Hoppe Heinrich C. , Boyom Fabrice F. 
Published: May 2023

This study aimed to assess the in vitro antiplasmodial and cytotoxic activities of ethanol extracts from the root barks, leaves and stem barks of seven medicinal plant species growing in Tanzania. The antiplasmodial activities of extracts against chloroquine-sensitive (3D7) and multidrug-resistant (Dd2) strains of Plasmodium falciparum were determined using a SYBR green I-based fluorescence assay, while the cytotoxicity of active extracts was determined against the human HepG2 cell line using a resazurin-based assay. Out of twenty-one extracts screened, two of them, namely, DFRE from Dracaena fragrans root bark (IC50Pf3D7 = 2.4 mg/mL) and EHSE from Erythrina haerdii stem bark (IC50Pf3D7 = 8.6 mg/mL and IC50PfDd2 = 7.6 mg/mL), exhibited good potencies against P. falciparum parasites. The two extracts emerged as the most promising and selective inhibitors (inhibited the growth of P. falciparum strains and were not toxic to the human HepG2 cell line) of chloroquine-sensitive (3D7) and multidrug-resistant (Dd2) strains of P. falciparum. Eight other extracts showed moderate potencies with IC50 values ranging from 11–25 mg/mL against both plasmodial strains, while the remaining 11 extracts were mildly active with IC50 values ranging from 25.1 to 96.7 mg/mL. The results of the cytotoxicity test indicated that the median cytotoxic concentrations (CC50) of the tested extracts were all ≥ 224.8 mg/mL, leading to selectivity indices (SI) > 10-fold for most of the extracts. The findings described in this article support the traditional use of the investigated medicinal plants to treat malaria.
Keywords: Antiplasmodial; Cytotoxicity; Ethanol extracts; Plasmodium falciparum
Ensino superior e desenvolvimento urbano da cidade de Montes Claros/MG
Authors: Souza Beirão Éder de , Castro de Carvalho Anne Marielle , Quaresma Oliva Gislene 
Published: May 2023

O objetivo do presente estudo foi analisar o papel das Instituições de Ensino Superior (IES) na promoção do desenvolvimento urbano de cidade de Montes Claros/MG. Para tal, foi utilizada uma pesquisa de abordagem qualitativa, classificada quantos aos objetivos em descritiva, quanto aos meios, um estudo de caso, quanto aos procedimentos, bibliográfica e documental. Os dados foram coletados no Instituto Brasileiro de Geografia e Estatística (IBGE) e o Cadastro Nacional de Cursos e Instituições de Ensino Superior (E-MEC). A partir das análises realizadas foi possível inferir que as IES e os respectivos cursos superiores em funcionamento de Montes Claros/MG influenciaram e continuam influenciando o desenvolvimento econômico, social e, principalmente o urbano da cidade.