bluuebunny/crossref_metadata_2025 huggingface dataset:
Approche eLearning pour le renforcement des capacités des professionnels de santé en Guinée : une expérience post-Ebola
Authors: Millimouno Tamba Mina , Delamou Alexandre , Kourouma Karifa , Kolié Jean Michel , Manet Hawa , Thoupia Baldé Aissatou , Habib Béavogui Abdoul , Roegiers Sara , Garcia Marlon , Kiyan Tsunami Carlos , Van Damme Wim , Delvaux Thérèse
Published: March 2021

Introduction : Le développement des ressources humaines de qualité en santé est un pilier essentiel d’un système de santé efficace. L’objectif de cette étude était de décrire le processus de mise en œuvre et les résultats d’une approche eLearning pour le renforcement des capacités des professionnels de santé en Guinée. Méthode : Une étude transversale descriptive utilisant une méthode mixte de recherche a été menée du 15 janvier 2018 au 15 janvier 2019. Résultats : Une équipe du Centre National de Formation et de Recherche en Santé Rurale de Maferinyah en Guinée a été formée en développement de cours en ligne. Deux cours d’une durée de trois mois chacun (sept à huit modules), entièrement offerts en ligne sur la plateforme Moodle ont été développés, l’un sur les Soins de Santé Primaires (eSSP), et l’autre sur la Gestion des Services de Santé Sexuelle et Reproductive (eSSR). Au total, 282 professionnels de santé ont été inscrits aux deux cours, avec un taux de complétude de 69,5 %. Le taux de réussite par rapport à la complétude était de 79,6 % et le taux de réussite par rapport aux inscrits était de 55,3 %. Les taux d’abandon et d’abstention étaient respectivement de 21,6 % et 8,9 %. Les forces, faiblesses et défis de l’organisation et la réussite de ce type de formation ont été rapportés. Conclusion : L’approche eLearning pour le renforcement des capacités des professionnels de santé est faisable et donne de bons résultats dans des contextes à revenus faibles comme celui de la Guinée.
Épidémies et Covid-19 dans les prisons africaines : l’occasion d’une approche de la santé vraiment globale
Authors: Le Marcis Frédéric
Published: March 2021

L’épidémie de Covid-19 est l’occasion de rappeler en quoi la santé en prison sur le continent africain reste un parent pauvre du système carcéral. Au-delà des difficultés de prise en charge posées par la Covid-19 en détention, les infirmeries des établissements pénitentiaires, quand elles existent, sont rarement intégrées dans les faits au système sanitaire. Les administrations pourvoient peu aux besoins vitaux des détenus. Les carences alimentaires sont fréquentes, les maladies de peau récurrentes et les détenus dépendent le plus souvent des moyens financiers de leurs familles ou d’ONG lorsqu’il s’agit d’accéder aux soins. L’illégitimité sociale de la population des détenus et la réticence des États à proposer aux condamnés ce qu’ils ne garantissent pas à la population générale sont deux arguments mis en avant pour justifier ce qui s’apparente à une nécropolitique. Parallèlement, les acteurs internationaux intervenants en prison ciblent essentiellement les pathologies à potentiel épidémique, contraints par des sources de financement (UNAIDS, Fonds Mondial) soutenant des stratégies de santé à l’échelle populationnelle. On voudrait ici revenir sur ces deux logiques et développer un argument pour une approche décloisonnée de la santé en prison. Au-delà de la reconnaissance de l’expérience sanitaire individuelle et du souci épidémiologique, traiter globalement de la santé en prison participe du rétablissement de la dignité et des droits du détenu par l’État, condition nécessaire à l’entretien de la citoyenneté par-delà l’enfermement.
A nexus between Green HRM (GHRM), Supply Chain Performance (SCP) and Business Performance (BP): The mediating role of Supply Chain Organizational Learning (SCOL)
Authors: - Muafi , Adhyka Kusumawati Rizqi
Published: March 2021

Purpose: This study tests and analyzes the relationship pattern (nexus) of Green HRM, SCP, and BP. In addition, this study also tests the mediation role of SCP in analyzing the relationship between GHRM and BP and the mediation role of SCP in analyzing the relationship between SCOL and BP.Design/methodology: This study uses survey method. The survey is distributed to owners/managers of courier service SMEs in two provinces (Special Region of Yogyakarta and East Java) in Indonesia. The sampling technique is conducted purposively with 165 respondents. The data analysis technique uses AMOS 23. Findings: SCOL has a positive effect on SCP and BP and mediates the effect of SCP on BP. The most interesting about the findings is GHRM has no effect on SCP and BP and SCP does not mediate GHRM on BP.Research limitations/implications: Researcher use purposive sampling which has limitation of not being able to generalize the population in two provinces, namely Special Region of Yogyakarta and East Java. This is also not ideal approach to evaluate the impact of GHRM on SCP and BP and the impact of SCOL on SCP and BP. Courier service SMEs in this study have not implemented GHRM in ideal manner so they are unable to conclude the results in a comprehensive and transparent manner.Managerial Implication: Companies need to consider aspects related to the courier service industry, namely digitalization of information and green innovation so their contribution can be seen in improving whole business performance. In addition, it is necessary to divide SMEs that have practiced GHRM and those that are not so they can make strategies and policies related to GHRM, SCP, BP and SCOL. It is also necessary to examine other aspects in improving the business sustainability of courier services, namely the complexity and service strategy orientation. SMEs who have more SCOL strategy will better implement GHRM practices associated with SCP and BP. This is important since competition in the courier service industry is getting tougher especially when faced with foreign competitors who already have global service standards.Theory Implication: This study contributes the theory enrichment of SCOL aspect in mediating the relationship pattern between SCP and BP. This study also provides theoretical contributions namely GHRM has no effect on SCP and BP and SCP does not mediate GHRM on BP.Originality/value: Study which examines the role of SCOL, especially when it is related to GHRM, SCP and BP is still limited in Asia. SME owners in the courier service industry rarely have good data integration in the system. The implementation of SC is starting from upstream to downstream processes so that SMEs need a well-planned and integrated SCOL in each work unit which ultimately have an impact on SCP and BP.
Saltkrake
Authors: Gramaglia Christelle
Published: March 2021

Cet article traite des sols pollués : de la présence, dispersion et intrusion de résidus miniers issus de pratiques extractives passées, jusque dans les villages, maisons et corps des habitants de la Sierra Minera de Carthagène (Espagne). Inspiré par la théorie de l’acteur-réseau, les science studies féministes et le néomatérialisme, il défend l’idée que la contamination a été facilitée par une façon de penser et gérer ces résidus, ignorante de leur « vitalité ». Parallèlement, il retrace la trajectoire du scientifique lanceur d’alerte José Matias Peňas Castejòn, arguant que ses attachements et sa pratique scientifique originale l’ont aidé à comprendre des phénomènes traités auparavant de manière restrictivement technique et hors-sol. Nous montrons qu’il est parvenu, malgré les difficultés, à produire des savoirs sur les pollutions situés, attentifs aux devenirs toxiques des résidus, mais également attentionnés vis-à-vis des populations. Nous nous posons la question de savoir comment favoriser les pratiques scientifiques plus précautionneuses vis-à-vis des riverains exposés aux risques de contamination.
Pluralisation des savoirs et cultures minoritaires
Authors: Casemajor Nathalie , Couture Stéphane
Published: March 2021

Cet article vise à étudier les enjeux culturels et politiques de la pluralisation des savoirs dans Wikipédia. Il analyse le cas du portail Franco-Ontariens comme exemple de représentation d’une minorité francophone au sein de l’encyclopédie. Bien que plusieurs travaux existent sur les dimensions linguistiques et culturelles de Wikipédia, peu d’études se penchent sur la place d’un groupe minoritaire au sein d’une édition linguistique de Wikipédia. L’analyse montre tout d’abord comment l’identité franco-ontarienne y est représentée, et qui sont les contributeurs du portail. Elle identifie ensuite des points de tension entre contributeurs au portail et autres wikipédiens au sujet de la reconnaissance des cultures minoritaires. L’article contribue plus généralement à l’élaboration conceptuelle de la notion de pluralisation des savoirs en l’articulant avec les notions de minorité, d’identité et d’expression culturelle.
Tripartite motif-containing protein 6 facilitates growth and migration of breast cancer through degradation of STUB1
Authors: Wei Chuanchao , Wu Jiayue , Liu Weiyan , Lu Jingfeng , Li Hongchang , Hai Benjun
Published: March 2021

Proteins in the tripartite motif-containing protein (TRIM) family participates in carcinogenesis. However, little attention was focused on the role of TRIM6 on development of breast cancer. Expression level of TRIM6 was found to be markedly enhanced in breast cancer cells and tissues. Functional assays demonstrated that overexpression of TRIM6 promoted breast cancer progression through increase of YAP1 (Yes-associated Protein 1), while knockdown of TRIM6 suppressed in vitro breast cancer progression and in vivo tumor growth through decrease of YAP1. Co-Immunoprecipitation (co-IP) showed that TRIM6 interacted with STUB1 (stress induced phosphoprotein 1 homology and U-box containing protein 1). TRIM6 promoted ubiquitination-mediated degradation of STUB1 to promote YAP1 signaling. Overexpression of STUB1 attenuated TRIM6-induced promotion of breast cancer growth. In conclusion, TRIM6 contributed to breast cancer progression through ubiquitination-dependent proteasomal degradation of STUB1 and provocation of YAP1 pathway, providing potential therapeutic target for breast cancer.
Effect of Exercise Training on Gene Expression of Adiponectin and its Receptors in Testicles and Sex Hormones in Diabetic Rats
Authors: Nadi Zahra , Bayat Mohammad , Karami Hadi , Parastesh Mohamad , Bayat ParvinDokht
Published: March 2021

Adiponectin and its receptors are expressed in the male reproductive system, which play a role in regulating male sex hormones and fertility. Diabetes was induced by Streptozotocin-Nicotinamide (STZ-NA i.p) in rats and after performing the trainings, adiponectin gene expression and its receptors in the testis were evaluated using real time PCR, and blood serum was then used in order to assess FSH, LH and testosterone. The STZ-NA significantly increased the fasting blood glucose, gene expression of adiponectin AdipoR1 in the testicles of diabetic rats. A significant reduction in serum testosterone and LH levels were observed in the diabetic group. Resistance and endurance training decreased blood glucose, adiponectin and AdipoR1 gene, and also increased the serum testosterone and LH levels in diabetic rats. Overall, our data suggest the role played by training in improve expression of adiponectin and AdipoR1 gene by increasing the serum testosterone and LH levels in type 2 diabetic rats.
The Procambarus clarkii (red swamp crayfish) in Merja Zerga wetland in Morocco: Dynamic and impacts on aquatic vegetation
Authors: Saguem SARA , Sahli Abdelouahab , Jdi EL Habib , Moutaouakil Majida El Alami El
Published: March 2021

Procambarus clarkii, one of the most invasive aquatic species in the world, is present in the Mediterranean estuarine regions. The invasion of this species in these wetlands has a multitude of impacts, including the impact on flora. This study examines the floristic diversity and abundance of Procambarus clarkii in this wetland, as well as whether the presence of this aquatic species affects the flora. The Procambarus clarkii sampling lasted three years (2016, 2017, 2018) in the Merja zerga wetland, using fishermen’s boats. Vegetation sampling was conducted during the same Procambarus clarkii capture period to assess the abundance of Procambarus clarkii at the same time and recover the effect of this aquatic species on the flora. To strengthen our study a survey was conducted among sinners to assess the impacts of Procambarus clarkii in its living environment. The results showed that there was a significant difference in the abundance of Procambarus clarkii sampled over the years (2016, 2017, 2018). The floristic diversity of the Merja zerga lagoon is very important. The effect of Procambarus clarkii on the flora was very remarkable. Thus, the floristic species exposed to this impact are the species of genus Potamogéton. These results show that Procambarus clarkii can be considered as a factor contributing to the decline of the floristic diversity of the aquatic areas where it lives.
Takotsubo syndrome and pheochromocytoma: an insidious combination
Authors: Maffè Stefano , Dellavesa Pierfranco , Paffoni Paola , Bergamasco Luca , Arrondini Marisa , Valentini Stefano , Facchini Emanuela , Prenna Eleonora , Baduena Lara , Careri Giulia , Franchetti Pardo Nicolò , Parravicini Umberto
Published: March 2021

Pheochromocytoma is a rare adrenal tumor characterized by the secretion of catecholamines and vasoactive peptides. It can cause a catecholaminergic storm and lead to acute coronary syndromes. We present the case of a 53-year-old man, without any medical history, who arrived to the hospital following a spinal trauma due a fall. He presents back and retrosternal pain, with a clinical status of acute pulmonary edema, sinus tachycardia with left bundle branch block, left ventricular apical ballooning with depressed systolic function. Blood tests show a very important increase of Troponin and transaminases. A contrast chest-abdomen CT highlighted a right adrenal solid mass, with a diameter of 78mm, partial capsular laceration, compression of the inferior vena cava and the hepatic parenchyma. The clinical condition of the patient rapidly worsens from a respiratory and hemodynamic point of view, with cardiogenic shock, anuria and sepsis, refractory to all the medical treatments, until the patient died. The autopsy confirmed that the abdominal mass was a pheochromocytoma, broken after the trauma suffered. The resulting catecholaminergic storm caused a myocardial ischemia with Takotsubo syndrome, with cardiogenic shock. This unfortunate case confirms the pheochromocytoma as important risk factor for the onset of Takotsubo syndrome, and the how dramatic and severe a catecholaminergic storm can be.
Integrated Soil Fertility Management Options for Maize Production and Sustainability in the Western Highlands of Cameroon
Authors: Ngoran Banye Eveline , Nguetsop Victor François , Tabi Oben Fritz
Published: March 2021

Background: Continuous cultivation without fertilizer application and soil erosion are responsible for plant nutrient depletion and yield decline of major food crops in Sub-Saharan Africa.Methods: Nutrient status of Calliandra calothyrsus, Leucaena leucocephala, Acacia angustissima and Cassia spectabilis were characterized. Field experiments were conducted over two years in the Western Highlands of Cameroon to evaluate the effects of the application of leaf biomass of agroforestry tree species and mineral fertilizers on maize yield performance. The residual effects on soil physicochemical properties were also investigated for umbric Cambisols of Babungo and ustic Oxisols of Bansoa. Ten treatments encompassing; sole leaf biomass of Calliandra calothyrsus, Leucaena leucocephala, Acacia angustissima and Cassia spectabilis, leaf biomasses combined with NPK fertilizer, sole NPK fertilizer and absolute control were laid in a randomized complete block design and replicated three times. Data were subjected to analysis of variance and the Duncan Test (p < 0.05) used for mean separation.Results: All the species characterized had nitrogen, polyphenol and lignin contents greater than 2.5 %, 5 % and 15 % respectively. Significant differences (p < 0.05) were observed among treatments on maize growth, productivity parameters and soil chemical properties for both soil types. The highest maize grain yields were recorded in plots amended with 1 t/ha of biomass of Calliandra calothyrsus or Leucaena leucocephala as well as1.5 t/ha of biomass of Acacia angustissima and Cassia spectabilis plus mineral fertilizer (50 N+ 37.5 P2O5 + 45 K2O) on both soils compared to other treatments.on umbric Cambisols and ustic Oxisols respectively. The residual effects of treatments on soil chemical properties showed severe nutrient depletion in control plots and those amended with sole inorganic fertilizer.Conclusions: Combined application of agroforestry tree biomass and inorganic fertilizers remains an appropriate technology to enhance maize yield and sustain production of resource-limited farmers of acid tropical soils..
Duration of exposure dependent effect of carbamate treated net on serum lipid profile of Wistar rats
Authors: Ukpanukpong R.U. , Eban L.K. , Ekpo G.I. , Aletan U.I. , Asuquo D.D.
Published: March 2021

The duration of exposure dependent effect of Carbamate treated net on serum lipid profile of female Wistar rats was investigated in this study. Eighteen (18) animals were randomly divided into three (3) study groups with six (6) rats each. Group 1 was designated as the control group while groups 2 and 3 constituted the experimental groups containing rats exposed to Carbamate treated net for 30 and 60 days respectively. The rats were exposed daily to Carbamate treated net by whole body and nose inhalation mode of exposure. The body weight of rats was measured at the commencement of the experiment and at the end of the experiment. The organ weight result obtained indicated that the body weight increased significantly in the rats of the experimental groups when compared to the rats in the control group at p<0.05. The result obtained indicated that the body weight increased significantly in the rats of the experimental groups when compared to the rats in the control group at p<0.05. The total cholesterol (TC), triacylglycerol (TG), high density lipoprotein cholesterol (HDL-C) and low density lipoprotein cholesterol (LDL-C) concentrations in the sera of the rats were determined at the end of the experiment. The result obtained showed that the TC, TG, HDL-C and LDL-C levels increased significantly in the rats of the experimental groups when compared to the rats in the control group at p<0.05. The observation from this study suggests that long-term exposure to Carbamate treated net in household setting may alter the level of the serum lipid profile of the experimental animals, thereby leading to various health complications.
The class of (n,m)power-A-quasi-hyponormal operators in semi-Hilbertian space
Authors: Bekai Djilali , Benali Abdelkader , Hakem Ali
Published: March 2021

The concept of K-quasi-hyponormal operators on semi-Hilbertian space is defined by Ould Ahmed Mahmoud Sid Ahmed and Abdelkader Benali in [7]. This paper is devoted to the study of new class of operators on semi-Hilbertian space H, ∥. ∥Acalled (n,m)power-A-quasi-hyponormal denoted [(n,m)QH]A.We give some basic properties of these operators and some examples are also given .An operator T ∈ BA(H) is said to be (n,m) power-A-quasi-hyponormal for some positive operator A and for some positive integers n and m if T⋕((T⋕)mTn— Tn(T⋕)m)T≥A or equivalently AT⋕((T⋕)mTn— Tn(T⋕)m)T≥0
Simulation of geoelectrical responses of structures buried in freshwater and brackish water environments
Authors: Akinrinade Opeyemi Joshua , Oginni Tolulope Emmanuel , Baguya Elnalee Buyagao
Published: March 2021

Marine geoelectrical simulation offers the opportunity to predict matrix type, interstitial fluid and geometry of buried structures. In this research, simulation of geoelectrical responses over buried structures in freshwater and brackish water environments were tested. A model tank made of acrylic and housed within an iron frame was built for the experiment. The tank was filled with water and sieved sediment having grain sizes ≤1.18 mm, corresponding to very coarse sand to colloid. Four models were designed namely freshwater static model (FSM), brackish water static model (BSM), freshwater model with buried structures (FMBS), and brackish water model with buried structures (BMBS). A bamboo pipe, metal pipe and granite block were buried in the FMBS and BMBS. Physico-chemical parameters of the water which includes temperature (22.74 – 26.06 °C), salinity (0.07 – 15.72 psu), conductivity (153 – 25,420 μS/cm  and resistivity (5.6 x 103 – 6.6 x 103 Ω-cm) were measured. Dipole-dipole array using inter-electrode separation (a) of 5 cm and 1≤n≤5 was adopted. Resistivity measurements obtained were processed and inverted using non-linear least-square optimization technique. We present obtained results as contoured 2D resistivity structures. FSM and FMBS were characterized by relatively high resistivity values compared with the BSM and BMBS. The buried  materials were effectively resolved in the freshwater models, compared to the brackish water model due to higher contrast in resistivity between the material and saturating fluid. The bamboo pipe was not effectively delineated in the brackish water medium, as a result of the low resistivity contrast which exists between the medium and the material. Zones with high compaction are characterized by high resistivity values, while concealed channel structures were characterized by low compaction. Estimated depth were exact for the freshwater models but was over estimated by `∼12.5% in the brackish water models. Marine electrical resistivity method shows great potential in mapping structures buried in medium with high contrasting resistivity values, and sedimentary structures with varying degree ofcompaction.
Reviewers for 2020
Authors: In Chief Editor
Published: March 2021

Reviewers contribute greatly to shaping the quality of manuscripts published in our journal. Our reviewers give of their time and expertise to the service of science. We recognise those who reviewed for us in 2020. We hope that manymore will respond to our invitation in the coming years.
Neglected Aspects in the Understanding of Holistic Development in Africa
Authors: Musopole Augustine Chingwala
Published: March 2021

How does one explain Africa's underdevelopment when compared with other regions of the world? Over fifty years of independence have little to show for economic progress and poverty has continued to afflict the African population even as it continues to grow. Political instability, economic regress, corruption, and bad governance have been identified as some of the problems facing Africa and keeping it underdeveloped. Yet, I believe that there are still other matters that have been neglected preventing leaders coming up with a holistic vision of development. Attention to these neglected aspects would, most likely, contribute to removing the bottlenecks to more accelerated holistic development of the continent thereby making it possible for Africans to realise abundant life.
Corporate communication strategies: Differentiation strategies and corporate communication plan for dissemination of disease surveillance research outcomes at Kenya Medical Research Institute
Authors: Muthotho Isaac Joseph , Otsiulah Winnie Ndeta , Sikolia Geoffrey Serede
Published: March 2021

Globally, differentiation strategies and corporate communication plan inform corporate communication strategies, for disseminating disease surveillance research outcomes. Study respondents are also stakeholders in research outcomes alongside the scientific community. This study examined differentiation strategies and corporate communication plans, as corporate communication strategies for dissemination of research outcomes at KEMRI. It also investigated the influence of the corporate communication plan in place for dissemination of disease surveillance research outcomes to study respondents at KEMRI. The study employed a purposive sampling design utilizing mixed methods using self-administered questionnaires and in-depth interview guides. The study adopted the pragmatic research paradigm. This case study utilised descriptive study design to collect primary data. The study was anchored on excellence theory and complimented by communication theory. The Krejcie Morgan table was utilised to determine a sample size of 76. Data was collected from a response rate of 79 per cent. From a target population of 76, the researcher purposively selected 60 respondents. The study findings were differentiation strategies (48.3%) and corporate communication plan (51.7 per cent). Recommendations on the communication plan comprised: elevation of Corporate Affairs (CA) to top management, to manage the communication plan for disseminating research outcomes. KEMRI to incorporate a communication plan for scientists and CA, for translating research jargon to research respondents and other stakeholders. Enhancement of differentiation strategies by continually maintaining image, identity and corporate visual identity (CVI). Empower CA to manage media relations, identity, reputation, and media audits. Propagate unified consistence in messaging, identifying KEMRI as an authority in communicating research outcomes. The study concluded that study respondents felt ignored during dissemination research outcomes at KEMRI, Nairobi. The findings enhanced the body of knowledge on, corporate communication strategies incorporating study respondents as stakeholders in research outcomes dissemination.
Physicochemical and phytochemical screening of six plants commonly used in the treatment of malaria in Nigeria.
Authors: Omagha R. , Idowu E.T. , Alimba C.G. , Otubanjo A.O. , Agbaje E.O. , Ajaegbu H.C.N.
Published: March 2021

Medicinal plants contain active compounds usually present as complex mixtures though at low concentrations, which accounts for the medicinal properties. Therefore it is important to identify and characterize these compounds. This study aims to quantify and characterize the physicochemical and phytochemical compositions of six plants commonly used in the treatment of malaria using High-Performance Liquid Chromatography (HPLC). These plants which are used individually or in combinations: Enantia chlorantha, Cymbopogon citratus, Curcuma longa, Carica papaya, Alstonia boonei and Mangifera indica, were extracted with hot water and the extracts characterized with HPLC using standard procedures. The results showed that M. indica stem bark had the highest yield with 81.48% and C. papaya had the lowest yield with 53.80%. Physicochemical properties of the extracts of E. chlorantha, C. citratus, C. longa, C. papaya, A. boonei and M. indica respectively are as follows: Melting point 90, 80, 95, 92, 96 and 96; pH 7.43, 8.02, 6.24, 6.81, 6.41, 6.85; moisture content 18.27, 22.77, 9.96, 9.62, 3.85 and 10.00; Total ash 1.45, 3.51, 0.34, 0.57, 9.10,10.21; refractive index 1.34, 1.34, 1.34, 1.34, 1.34, 1.34 and 1.34. Alkaloids, phenols, flavonoids, terpenoids, tannins, coumarin were some of the antimalarial active phytochemicals identified. Alkaloid (Atropine) was highest in C. longa (4382.2mg/g). M. indica (32982.8mg/g) had the highest Rutin Hydrate content. While Quercetin was not detected in C. papaya, it was considerably present in A. boonei (491.1mg/g). All the analyzed six plants contain low phenol (gallic acid). The characterized physicochemical and phytochemical compositions of the examined plants suggests why the plants are effective in the treatment of malaria. The information reported herein describes the physicochemical and phytochemical contents of six commonly used antimalarial plants in Nigeria. It is expected that the information will be useful in understanding the pharmaceutical effects of how the plants work in the body and in the development of efficacious and safe antimalarial drugs.
Valuation of hydraulic fracturing potentials of organic-rich shales from the Anambra basin using rock mechanical properties from wireline logs
Authors: Akaha-Tse Homa Viola , Oti Michael , Abrakasa Selegha , Ugwueze Charles Ugwu
Published: March 2021

This study was carried out to determine the rock mechanical properties relevant for hydrocarbon exploration and production by hydraulic  fracturing of organic rich shale formations in Anambra basin. Shale samples and wireline logs were analysed to determine the petrophysical, elastic, strength and in-situ properties necessary for the design of a hydraulic fracturing programme for the exploitation of the shales. The results obtained indicated shale failure in shear and barreling under triaxial test conditions. The average effective porosity of 0.06 and permeability of the order of 10-1 to 101 millidarcies showed the imperative for induced fracturing to assure fluid flow. Average Young’s modulus and Poisson’s ratio of about 2.06 and 0.20 respectively imply that the rocks are favourable for the formation and propagation of fractures during hydraulic fracking. The minimum horizontal stress, which determines the direction of formation and growth of artificially induced hydraulic fractures varies from wellto-well, averaging between 6802.62 to 32790.58 psi. The order of variation of the in-situ stresses is maximum horizontal stress>vertical stress>minimum horizontal stress which implies a reverse fault fracture regime. The study predicts that the sweet spots for the exploration and development of the shale-gas are those sections of the shale formations that exhibit high Young’s modulus, low Poisson’s ratio, and high brittleness. The in-situ stresses required for artificially induced fractures which provide pore space for shale gas accumulation and expulsion are adequate. The shales possess suitable mechanical properties to fracture during hydraulic fracturing. Application of these results will enhance the potentials of the onshore Anambra basin as a reliable component in increasing Nigeria’s gas reserves, for the improvement of the nation’s economy and energy security.

Key Words: Hydraulic Fracturing, Organic-rich Shales, Rock Mechanical Properties, Petrophysical Properties, Anambra Basin
Heavy metal levels in cassava flour sold in Okura, Ejule and Ojapata of kogi state, Nigeria
Authors: Taiye Olubiyo Gloria , Ohunene Yakubu Anita , Kehinde Olubiyo Comfort
Published: March 2021

Cassava (Manihot esculenta) is a major source of carbohydrate and a staple food cultivated in Nigeria especially in Kogi  State. Determination of heavy metals in cassava flour from major markets:(Okura ,Ejule and Ojapata) in Kogi East was done to ascertain the quality of cassava flour and its human exposure path.Lead, cadmium, iron and zinc contents were determined using Atomic Absorption Spectrophotometer (AAS).The results were analysed using Analysis of Variance (ANOVA), Duncan Multiple Range Test (DMRT) and  Independent Sample t-test. Zn concentration in Ejule (Control) was as low as 0.002±0.000a . Pd,Cd,Fe, and Zn screened were far below the WHO guideline values or permissible limit of metal in food.This implies that the metal toxicants present in the cassava flour is in such low concentrations that render the food non-toxic and edible.

Keywords: Heavy metals; pollution; cassava flour; human exposure.
Seismic-to-well tie of a field of the Nigerian Delta
Authors: Inichinbia S. , Ahmed A.L.
Published: March 2021

This paper presents a rigorous but pragmatic and data driven approach to the science of making seismic-to-well ties. This pragmatic  approach is consistent with the interpreter’s desire to correlate geology to seismic information by the use of the convolution model,  together with least squares matching techniques and statistical measures of fit and accuracy to match the seismic data to the well data. Three wells available on the field provided a chance to estimate the wavelet (both in terms of shape and timing) directly from the seismic and also to ascertain the level of confidence that should be placed in the wavelet. The reflections were interpreted clearly as hard sand at H1000 and soft sand at H4000. A synthetic seismogram was constructed and matched to a real seismic trace and features from the well are correlated to the seismic data. The prime concept in constructing the synthetic is the convolution model, which represents a seismic reflection signal as a sequence of interfering reflection pulses of different amplitudes and polarity but all of the same shape. This pulse shape is the seismic wavelet which is formally, the reflection waveform returned by an isolated reflector of unit strength at the target  depth. The wavelets are near zero phase. The goal and the idea behind these seismic-to-well ties was to obtain information on the sediments, calibration of seismic processing parameters, correlation of formation tops and seismic reflectors, and the derivation of a  wavelet for seismic inversion among others. Three seismic-to-well ties were done using three partial angle stacks and basically two formation tops were correlated.

Keywords: seismic, well logs, tie, synthetics, angle stacks, correlation,
PARTISIPASI ANGGOTA DALAM MENGEMBANGKAN CREDIT UNION
Authors: Vuspitasari Benedhikta Kikky , Hapsari Veneranda Rini , Ewid Angelus
Published: March 2021

Credit Union merupakan satu lembaga keuangan dibidang simpan pinjam atau biasanya dikenal sebagai koperasi simpan pinjam, dalam kegiatan usahanya, yaitu menghimpun dana dari anggota koperasi dengan menciptakan sumber kredit dari dan untuk anggota dengan bunga yang relatif rendah. Tujuan penelitian ini adalah memberi gambaran bagiamana partisipasi anggota membantu mengembangkan Credit Union. Metode penelitian menggunakan metode penelitian kualitatif bersifat deskriptif, Metode pengumpulan data yaitu melalui penelitian pustaka mencari jurnal, buku-buku serta sumber tertulis dan pengamatan di lapangan dilakukan  dengan metode wawancara yaitu melakukan wawancara kepada narasumber yang menguasai materi-materi yang diperlukan dalam penelitian ini. Dari hasil yang diperoleh disimpulkan bahwa semakin besar peran Credit Union dalam memperbaiki kesejahteraan anggotanya, semakin tinggi partisipasi mereka dalam kegiatan koperasi. Bahwa kunci Partisipasi anggota dalam mengembangkan Credit Union adalah kepercayaan dari para anggota tersebut, manajemen dan pelayanan yang baik.
UKM HIDROPONIK DAN UKM ORGANIK SEBAGAI WADAH PRAKTIK KEWIRAUSAHAAN DI STIM SHANTI BHUANA
Authors: Panra Panra , Damas Sadewo Yosua
Published: March 2021

Penelitian ini bertujuan untuk mengetahui peran UKM Hidroponik dan UKM Organik sebagai wadah praktik kewirausahaan mahasiswa STIM Shanti Bhuana dan kaitannya dengan pembangunan berkelanjutan, sehingga hasil penelitian ini dapat menunjukkan manfaat adanya UKM Hidroponik dan UKM Organik di STIM Shanti Bhuana beserta kaitan dan keselarasannya dengan konsep pembangunan berkelanjutan. Metode penelitian yang digunakan adalah Studi Literatur. Adapun penelitian ini dilakukan di Sekolah Tinggi Ilmu Manajemen Shanti Bhuana. Hasil penelitian menunjukkan bahwa UKM Hidroponik dan UKM Organik dapat menjadi wadah yang tepat bagi mahasiswa STIM Shanti Bhuana dalam praktik kewirausahaan dan membantu perkembangan dan keterampilan para mahasiswa. Manfaat lainnya yaitu penerapan UKM Hidroponik dan UKM Organik ini sejalan dengan beberapa poin penting dalam konsep pembangunan berkelanjutan.
ANALISIS PENERAPAN E-COMMERCE DENGAN SISTEM DROPSHIPPING TERHADAP KEPERCAYAAN, MINAT DAN KEPUTUSAN PEMBELIAN KONSUMEN
Authors: Paransa Stanley , Sadewo Yosua Damas
Published: March 2021

Dengan berkembang pesatnya e-commerce di Indonesia berdampak pada potensi peningkatan ekonomi di Indonesia, salah satunya e-commerce yang menggunakan sistem dropshipping. Tujuan dari penelitian ini  adalah untuk mengetahui besarnya pengaruh penerapan e-commerce dengan sistem dropshipping terhadap kepercayaan, minat dan keputusan pembelian konsumen. Metode penelitian yang digunakan adalah metode penelitian kuantitatif dengan jumlah responden sebanyak 30 orang yang pernah melakukan transaksi pembelian khususnya di TENY ONLINEshop yang menggunakan sistem dropshipping. Tehnik analisa data menggunakan analisa regresi linear sederhana. Dari hasil analisa data yang didapat, telah menjawab hipotesis bahwa adanya pengaruh penerapan e-commerce yang berbasis dropshipping terhadap kepercayaan konsumen sebesaar 14,1%, minat konsumen sebesar 18%, dan untuk keputusan pembelian sebesar 24,8%.
Jair Bolsonaro’s diplomacy: dismantling traditional foreign policy of Brazil
Authors: Bezerra M.
Published: March 2021

The author of the article under consideration analyzes Brazilian foreign policy in the period of the two years of Jair Bolsonaro’s government. According to predictions, introduction of the ultraright politician to power radically changed Brazil’s traditional foreign policy recognized for its independence, pragmatism and moderation. ‘Bolsonarist’ diplomacy led by chancellor Ernesto Araújo, following the agenda of the foreign policy of the United States, deconstructs the paradigms of Brazilian diplomacy, including the so-called ‘responsible pragmatism’ formulated by the government of president Ernesto Geisel (1974-1979) during the military dictatorship as one of the pillars of Brazil’s role on the world stage, including the 13 years of the center-left government of the Worker’s Party (2003- 2016). Thus, paradoxically, Jair Bolsonaro ignores the lessons of the military regime of which he is an admirer and an apologist. Despite that, however, Bolsonaro’s government has reaffirmed Brazil’s role in BRICS, responded to threats posed to Brazil’s sovereignty over the Brazilian Amazon and reaffirmed its decision not to join the IAEA Additional Protocol. Stripped of its alliance with ‘trumpism’, Brazil will face challenges in environmental and human rights areas with Joe Biden’s administration. Possible dismissal of Ernesto Araújo, being an object of discontent in agribusiness and in the military, political and diplomatic circles, may mean an ‘adjustment’, but it will not bring about significant changes in the foreign policy of ‘bolsonarism’.
INFLUENCERS AND MEDIA: INFLUENCER-GENERATED CONTENT ON SOCIAL MEDIA PLATFORMS AS A JOURNALISTIC SOURCE
Authors: Anđelić Aleksa
Published: March 2021

The growing popularity of social media platforms, especially YouTube, Facebook, Twitter and Instagram, has enabled online influencers to appear in addition to previously known celebrities, representing a new global phenomenon and new role models for young people. Biran and his associates in the paper “Detecting influencers in written online conversations” state that influencers are the participants in online communication who have credibility in the group, who persevere in order to convince others and who introduce ideas that others accept or support (Biran et al., 2012: 38-39). Research on journalistic sources, especially research on content created by influencers on social media services, is a significant contribution to research in the field of media pluralism. Research on social network platforms as a source of information in Serbian literature is rare, which contributes to the significance of this research. The purposes of the research are to determine whether the content created and published by influencers on social network platforms in Serbia is a source of information for online editions of Serbian daily newspapers, the type of content in question, as well as whether the media gain new audiences that follow influencers. Qualitative-quantitative content analysis and web surveys were used for the research. Based on the qualitative-quantitative analysis of domestic daily newspapers (Danas, Politika, Večernje novosti, Blic, Kurir, Alo, Telegraf, Informer), we can conclude that the media use the profile content that influencers publish on social network sites as a source for texts which are soft news. According to the web survey in which 175 respondents participated, we can conclude that texts about influencers in the media are followed by 38 respondents and that the media are gaining new audiences who follow influencers on social network sites.
CYBERBULLYING AMONG SCHOOL CHILDREN
Authors: Marković Marija , Stanisavljević Petrović Zorica , Mamutović Anastasija
Published: March 2021

Modern information technologies are widely used in everyday communication among children and adults alike. In addition to the benefits that the use of modern media provides, one faces the possibilities of their abuse for the purpose of hurting others. Among students one encounters cyberbullying as a form of an inadequate use of modern media. Since the aforementioned phenomenon is of recent date and the manners of its manifestation become increasingly complex with the development of modern media one needs to understand more clearly the specificity and the manner of expressing this form of bullying. This paper aims to specify the meaning of the term cyberbullying, its manifestation forms, participants´ roles in cyberbullying, as well as the consequences of such behaviour in order to understand this phenomenon more clearly for the purpose of educating the school staff to be able to suppress it.
Cultural Sexism
Authors: Savigny Heather
Published: March 2021

How does gendered power work? How does it circulate? How does it become embedded? And most importantly, how can we challenge it? Heather Savigny highlights five key traits of cultural sexism - violence, silencing, disciplining, meritocracy and masculinity - prevalent across the media, entertainment and cultural industries that keep sexist values firmly within popular consciousness. She traces the development of key feminist thinkers before demonstrating how the normalization of misogyny in popular media, culture, news and politics perpetuates patriarchal values within our everyday social and cultural landscape. She argues that we need to understand why #MeToo was necessary in the first place in order to bring about impactful, lasting and meaningful change.
International Graduate Students’ Cross - Cultural Academic Engagement: Stories of Indonesian Doctoral Students on an American Campus
Authors: Mukminin Amirul , McMahon Brenda
Published: March 2021

The purpose of this study was to explore the lived experience of academic engagement of twelve Indonesian doctoral students attending an American graduate school during their first term and over time through demographic background surveys and semi - structured in - depth interviews. The research design was qualitative in the phenomenological approach (Creswell, 2007; Merriam, 1998; Moustakas, 1994; Patton, 1990). We analyzed our interviews data by using within - case and cross - case displays and analyses (Miles & Huberman, 1994) while we analyzed the demographic data descriptively. We identified five major themes related to Indonesian doctoral students’ academic engagement experiences , including (a) academic workload, (b) unfamiliarity with classroom dynamics, (c) unfamiliarity with the nature of relationships between faculty and student, (d) personal conflicts with and unfair treatment from professors, and (e) linguistic barriers. Implications of findings and future research are discussed.
Using Metaphor Analysis: MIP and Beyond
Authors: Pitcher Rod
Published: March 2021

Metaphor analysis is a way of obtaining understanding of a text by identifying and analysing the metaphors used in it. Metaphor analysis, as usually described, uses the researcher’s intuition as a means of identifying the metaphors. MIP, the Metaphor Identification Procedure, uses a more valid and repeatable way of finding the metaphors. MIP may be applied in a way that will produce a quantitative or qualitative result. As a result, the application of MIP links quantitative and qualitative research and their results through one method of identifying the metaphors.
Capturing Undergraduate Experience through Participant - Generated Video
Authors: O'Toole Paddy
Published: March 2021

The enrolment and attrition rate in science degrees in the Western world is of increasing concern, both nationally and at university level. At the same time, teaching undergraduate science requires universities to invest in laboratories, staff and equipment to meet the initial demand of enrolling students. In this article, I discuss participant - generated video as an innovative method of research used in a study to extend understanding about the experience of science students’ experience in an Australian university. In this paper, I present the method s and practices used to explore the experience of a selected number of undergraduate science students, using a phenomenological approach. Students used video cameras to record their daily experiences and their commentaries on these over the course of a semester. This method of data collection presented interesting issues related to ethics, the underlying organization of the design, and the way the students engaged as participant - researchers. The results of the study showed that the method of participant - generated video data collection educated the students on aspects of research ethics involving human subjects and on reflecting on meaning, which enabled the students to present powerful insights into their own experience.
(Un)Stable Space(s): An Ethnography of a (Sometimes) Gay Bar
Authors: Davis Andrea
Published: March 2021

Using ethnography, I studied the ways in which space was created at a nightclub with a once a week Drag Night. The history of the space (each night building on the night before for years and years) created stability for the nightclub that remained regardless of the individuals within it. Drag Night, however, did not reap the benefits of that stability. Despite site - specific (read theme - night specific) normative performances in the space, the social space was altered through individual performances as well as rules associated with the club.
Learning Abroad or Just Going Abroad? International Education In Opposite Sides of the Border
Authors: Ramirez Gerardo
Published: March 2021

International education, particularly through study abroad experiences, has the potential of preparing students for a globally interconnected world. While challenging, it is necessary to translate aspirations of global citizenship into educational programs and assessing their effectiveness. A necessary step in such process consists in taking a close and critical look at the challenges and possibilities for the development of global citizenship through education abroad. In this paper, I follow a decolonizing autoethnographic approach to explore obstacles for the development of global citizenship through education abroad. If education abroad is to promote global citizenship and character development, I propose a more authentic engagement with the local culture s and a better understanding of globalization — before going abroad — is necessary.
Diagrammatic Elicitation: Defining the Use of Diagrams in Data Collection
Authors: Umoquit Muriah , Tso Peggy , Varga-Atkins Tünde , O'Brien Mark , Wheeldon Johannes
Published: March 2021

The use of graphic representations of experience and the social environment in the data collection process is an emerging approach. The terms diagramming, mapping and drawing are often used interchangeably, with no common interdisciplinary understanding of what they mean. The lack of a unifying terminology has resulted in simultaneous but separate developments undermining a more coherent approach to this emergent method. By defining what a diagram is and examining where diagramming fits amongst other data collection approaches, this paper proposes the term diagrammatic elicitation to refer to the use of diagrams in the data collection process. Two subcategories of this approach include: (a ) participant - led diagrammatic elicitation, where participants create original diagrams and (b ) researcher - led diagrammatic elicitation, where the researcher draws the diagram during the data collection process for discussion or participants edit a researcher - prepared diagram. Establishing these terms will allow researchers to share best practice and developments across disciplines.