bluuebunny/crossref_metadata_2025 huggingface dataset:
When Ethical Values Drive the Creation and Development of Sporting Events
Authors: Aureli Selena , Graziano Hermann
Published: June 2020

Based on the case study of ColleMarathon, this chapter aims to describe how local volunteers were able to transform a very small-scale sporting event into a successful occasion that merged sports with ethical values and generated positive outcomes for the local communities. Members of the local sports associations and volunteers are the inventors, managers and workers of the marathon that want to communicate the spirit of care and authentic values as its title suggests, “The Marathon of Values.” Ongoing growth (from 350 to more than 1000 athletes) and the participation of new businesses and entities has not changed the governance and the aim of the race: after 17 years, ColleMarathon is still managed by an organising committee made up of representatives of the sports associations and volunteers, who are set in motion by the values they want to disseminate with the event. Values are the glue that binds all actors and still attract participants that run through villages, hills, and old castles, meeting the local people and learning their cultural traditions.
Using Learning Management System Activity Data to Predict Student Performance in Face-to-Face Courses
Authors: Mozahem Najib Ali
Published: June 2020

Higher education institutes are increasingly turning their attention to web-based learning management systems. The purpose of this study is to investigate whether data collected from LMS can be used to predict student performance in classrooms that use LMS to supplement face-to-face teaching. Data was collected from eight courses spread across two semesters at a private university in Lebanon. Event history analysis was used to investigate whether the probability of logging in was related to the gender and grade of the students. Results indicate that students with higher grades login more frequently to the LMS, that females login more frequently than males, and that student login activity increases as the semester progresses. As a result, this study shows that login activity can be used to predict the academic performance of students. These findings suggest that educators in traditional face-to-face classes can benefit from educational data mining techniques that are applied to the data collected by learning management systems in order to monitor student performance.
A Framework for Building Mature Business Intelligence and Analytics in Organizations
Authors: George Amrita , Schmitz Kurt , Storey Veda C.
Published: June 2020

As activities are increasingly being digitalized in business and society, organizations have sought ways to effectively and competitively, use data. Business intelligence and analytics (BI&A) systems which support managerial decision-making continue to be developed and used. Given the importance of these systems, it would be useful to have a comprehensive and mature guide to support their development and improvement. This research proposes a BI&A Competitive Advantage Maturity Model to identify the main technical and non-technical dimensions of a system to support business intelligence and analysis. The model is based on work systems theory and related research. It maps descriptive characteristics of its main dimensions across analytic adoption stages of aspirational, experienced, and transformed. The development of the model employed a modified Delphi study technique, design science research, and citation analysis.
Creative Arts Therapy as a Potential Intervention to Prevent Burnout and Build Resilience in Health Care Professionals
Authors: Reed Katherine , Cochran Kathryn L. , Edelblute Anthony , Manzanares Daniel , Sinn Hillary , Henry Michael , Moss Marc
Published: June 2020

The delivery of health care is undergoing a rapid evolution that is dramatically changing the way health care professionals perform their job responsibilities. In this increasingly stressful work environment, professionals are experiencing alarming rates of burnout. Recent efforts to enhance wellness have been directed toward organizations. However, because of the nature of the work performed in intensive care units, interventions to develop individual resilience are also needed. Currently, medical centers are environments in which the emotional impact of work-related trauma is often minimized and rarely processed. Some individuals may struggle to describe or express the impact of those traumas. Through nonverbal interventions, creative arts therapy can help people access, explore, and share authentic emotion in visual, musical, physical, or written form. By reconstructing meaning through transformative methods, participants may confront, reflect, and better cope with traumatic experiences while catalyzing social support networks and deepening relational bonds in the workplace.
Double-Hit–Induced Leukocyte Extravasation Driven by Endothelial Adherens Junction Destabilization
Authors: Morsing Sofia K. H. , Al-Mardini Claudia , van Stalborch Anne-Marieke D. , Schillemans Maaike , Bierings Ruben , Vlaar Alexander P. , van Buul Jaap D.
Published: June 2020

During inflammation, endothelial cells are bombarded with cytokines and other stimuli from surrounding cells. Leukocyte extravasation and vascular leakage are both prominent but believed to be uncoupled as they occur in separate spatiotemporal patterns. In this study, we investigated a “double-hit” approach on primary human endothelial cells primed with LPS followed by histamine. Using neutrophil transendothelial migration (TEM) under physiological flow assays, we found that an LPS-primed endothelium synergistically enhanced neutrophil TEM when additionally treated with histamine, whereas the effects on neutrophil TEM of the individual stimuli were moderate to undetectable. Interestingly, the double-hit–induced TEM increase was not due to decreased endothelial barrier, increased adhesion molecule expression, or Weibel–Palade body release. Instead, we found that it was directly correlated with junctional remodeling. Compounds that increased junctional “linearity” (i.e., stability) counteracted the double-hit effect on neutrophil TEM. We conclude that a compound, in this case histamine (which has a short primary effect on vascular permeability), can have severe secondary effects on neutrophil TEM in combination with an inflammatory stimulus. This effect is due to synergic modifications of the endothelial cytoskeleton and junctional remodeling. Therefore, we hypothesize that junctional linearity is a better and more predictive readout than endothelial resistance for compounds aiming to attenuate inflammation.
Structural controls and relative timing of gold mineralization of the banded iron formation-associated Tiriganiaq deposit, Meliadine district, Rankin Inlet greenstone belt, Nunavut
Authors: St. Pierre B , Mercier-Langevin P , Blais J
-C , Servelle G , Simard M , Côté-Mantha O , Malo M
Published: June 2020

The Meliadine gold district is hosted within the Archean (ca. 2660 Ma) polydeformed Rankin Inlet greenstone belt, Nunavut. The district comprises numerous gold deposits and prospects that are spatially associated with the Pyke Fault and its splays. This includes
the currently producing Tiriganiaq deposit, which is hosted within the turbidite-dominated structural hanging wall of the Lower Fault, a west-trending splay of the Pyke Fault.
The 1150 and 1250 'lode series' within the Tiriganiaq deposit are a series of ore zones with complex geometries. Before underground development, the knowledge of gold-grade distribution in these zones was based on surface drilling results and could therefore not take into account some of the
small-scale structural features that control ore grade and ore zone geometry (e.g. <25 m wavelength folding).
New field relationships document the importance of horizontal to shallowly south-dipping ore-bearing extensional quartz±ankerite veins. These veins are associated with sulphide replacement zones that are preferentially developed in tightly folded banded iron formation (BIF) intervals. Folding
and veining are associated with the main phase of deformation in the deposit area, which corresponds to the second phase (D2) of regional deformation. The D2 deformation at the Tiriganiaq deposit can be further subdivided into two main protracted phases: the first phase (D2A), which is associated
with northeast-southwest-oriented shortening and F2A folding; and the second phase (D2B), which is associated with north-south shortening, further folding (F2B), and reverse shearing and veining (shallowly south-dipping extension veins and moderately north-dipping shear veins). The 1150 and 1250
lodes provide an excellent example of the complex geometry of the ore-bearing veins found within the shallowly west-plunging F2B folded BIF successions. These zones provide some of the highest gold grades within the Tiriganiaq deposit and thus highlight the importance of fold hinges and their effect
on the generation of favourable traps (thickened BIF intervals), the development of narrow shears (along the limbs), and the development of associated extensional veins in the competent BIF layers, forming structurally and lithologically controlled high-grade zones.
Neoproterozoic-hosted Carlin-type mineralization in central Yukon, part 1: regional- to prospect-scale geological controls
Authors: Pinet N , Sack P , Mercier-Langevin P , Colpron M , Lavoie D , Dubé B , Brake V I
Published: June 2020

In central Yukon, sediment-hosted gold mineralized zones have similar characteristics to Carlin-type deposits in Nevada. However, it remains unclear if exploration models applied to the southwest United States similarly apply to the Canadian Cordillera. This
contribution tackles that knowledge gap by reviewing the regional- to prospect-scale setting of mineralized zones found in the Nadaleen trend, Yukon. Carlin-type gold-bearing zones in central Yukon are located near the boundary between the Ogilvie platform to the northeast and the Selwyn Basin to
the southwest. This shelf-to-basin transition is marked in part by the Dawson fault, which is likely a long-lived, deep-seated structure that influenced sedimentation and younger structural history. Gold-mineralized zones are mainly hosted in two Neoproterozoic limestone units (informally known as
the Conrad and Osiris limestones of the Nadaleen and Gametrail formations, respectively) and in Paleozoic siltstones. In the Nadaleen trend, the structural style is complex; the strata generally dip more steeply than in classic fold-and-thrust belts and faults bear a significant strike-slip
component. Neoproterozoic-hosted gold ore zones are mostly concordant with bedding in complexly shaped anticlines. Gold mineralization is significantly younger than the main intrusion-related gold mineralizing event in the northern Selwyn Basin.
Neurolymphomatosis – Rare presentation in non-Hodgkin's lymphoma: The role of 18F-fluorodeoxyglucose positron-emission tomography and computerized tomography imaging
Authors: Fatima Nosheen , Zaman Maseeh Uz , Zaman Areeba , Zaman Sidra Uz
Published: June 2020

Neurolymphomatosis (NLS) is infiltration of lymphoma cells into the peripheral or cranial nervous system and is a rare manifestation of non-Hodgkin lymphoma (NHL). Nerve biopsy is considered as the gold standard for diagnosis but not a preferred choice, and magnetic resonance imaging has lower reported sensitivity. 18F-Fluorodeoxyglucose (18FDG) positron-emission tomography and computerized tomography (PET/CT) has a higher sensitivity for diagnosing and assessing the neurological and nonneurological metabolic tumor volume and response evaluation to therapy. We present the case of a lady, known to have NHL in remission. She presented with a short history of severe pain and weakness of the right lower limb. Baseline and interim 18FDG PET/CT played a crucial role in diagnosing and assessing the extent of NLS and nonneurological disease burden and also in evaluation of response to treatment.
The diagnostic accuracy of prospective investigative study of acute pulmonary embolism diagnosis criteria for the detection of acute pulmonary thromboembolism in acutely ill patients
Authors: Gharabaghi Mehrnaz , Sarv Fatemeh , Farzanehfar Saeed , Abbasi Mehrshad
Published: June 2020

The practical diagnostic performance of Prospective Investigative Study of Acute Pulmonary Embolism Diagnosis (PISAPED) criteria for the detection of acute pulmonary thromboembolism (APTE) in hospitalized patients is not yet well determined. This is the report of the initial results of our recently implemented protocol to employ PISAPED. One hundred and forty-seven pulmonary perfusion scans with 1–3 mCi 99mTc-MAA of patients of a single pulmonologist were included. Patients with suspicious perfusion defects underwent single-photon emission computed tomography. Interpretations were done by consensus of two nuclear medicine specialists. Comparisons were done with chest X-ray or chest computed tomography when available. The interpreters had access to the clinical records. The scans were reported based on the PISAPED criteria as negative or positive for APTE or indeterminate. Patients were followed up for 6.2 ± 5.3 months when the final diagnosis confirming or excluding APTE was achieved. Patients aged 55.9 (17.2) years; 78 (53.1%) of them were female and 64 (43.8%) had high Wells' score. The scans were positive, negative, and indeterminate in 17 (11.6%), 126 (85.7%), and 4 (2.7%) patients, respectively. In 6 out of 147 patients, follow-up was not completed and the final diagnosis was not achieved. APTE was finally diagnosed in 21 (14.3%) patients; 12 (57.1%) of them had positive scans. APTE was excluded in 116 (78.9%) patients; 112 (96.5%) of them had negative scans. The accuracy of the test for the diagnosis of APTE was 87.9%. Lung metastasis was the most frequent reason among false-negative cases. The lung perfusion scan using PISAPED criteria could be used with good accuracy in inpatient settings.
أستاذ الحديث وعلومه بكلية القران والدراسات الإسلامية جامعة جدة
Authors: أ. د. نوال عمر عبدالله باسعد أ. د. نوال عمر عبدالله باسعد
Published: June 2020

بعث الله تعالى محمَّدًا صلى الله عليه وسلم لأمته نبيًّا رحيمًا، ومن شفقته عليهم علمهم منهجا فريدا في التعامل مع الفتن قبل وقوعها: بالاستعاذة بالله من شر الفتن، مع التسلح بالعلم الشرعي، والاهتمام بالحصانة الفكرية والتنبيه على السنن الله الإلهية الخاصة بالفتن. ومنهجا آخر للتعامل مع الفتن أثناء وبعد وقوعها: ابتداء بالإيواء إلى الله عز وجل، وعدم استشراف الفتن والتعرض لها، والتعامل مع مجريات الأحداث بحكمة ووعي، والبشارة بالخير وسط مجريات الفتن، واستحضار الأدلة الشرعية الخاصة بالفتن، وأخذ الدروس والعبر. وختم البحث بأهم النتائج منها: أن العلم الشرعي سلاح في وجه كل فتنة، وأهمية عدم استشراف الفتن، مع لزوم جماعة المسلمين، وأهل الرأي والعلم والحكمة لاسيما وقت اشتدادها، وأخذ الدروس والعبر منها. ومن أهم التوصيات المقترحة: تتبع منهج النبي صلى الله عليه وسلم في التعامل مع فتن بعينها حدثت في عهده صلى الله عليه وسلم كفتنة حادثة الإفك على مستوى الكتب الستة أو على مستوى الصحاح، لاستخراج الدروس والعبر، وتسليط الضوء من قبل وسائل الإعلام والتواصل الاجتماعي على المنهج النبوي في التعامل مع الفتن.
Morphological study of patent foramen ovale in Sudanese population
Authors: Kkair Ahmed Mohammad Atiaallah Mohammad , Ahmed Ali Yasen Yasen Mohamed , Osman Mutaz Ogeal , Ismail Mawadda Farah , Awad Khalid Elamin
Published: June 2020

The aim of this study is to establish anatomical reference regarding PFO among Sudanese as increasing evidence was found that PFO is culprit in paradoxical emboli events; this led to the reevaluation of this relatively important anomaly. We included 60 apparently normal hearts available in Dissection Rooms in five faculties of medicine in Sudan. The rate of PFO was 7 (11.7%) and the diameter was ranging between 5 mm and 21 mm, with average of 0.87 mm. We conclude that PFO is common among Sudanese and was seen in seven cadavers (11.7%).
Factors affecting entrepreneurship development among the food marketers in Ilorin Metropolis, Kwara State, Nigeria
Authors: Ifabiyi J.O. , Banjoko I.K. , Ahmed S.A. , Lawal S.W. , Isiaka M.A. , Awarun O
Published: June 2020

The study assessed the factors affecting entrepreneurship development among Food Marketers in Ilorin Metropolis, Kwara State, Nigeria. One hundred and ten respondents were randomly selected in four markets in Ilorin. The data was analyzed using frequency count, percentage, mean and Pearson Product Moment Correlation. The result reveals that mean age of the respondents was 30.5 years and about 58.2% were female. Record keeping skills (mean score =2.42) was the highest ranked entrepreneurial information needs of the respondents while lack of start-up capital (mean score =2.40) was the most severe factor affecting entrepreneurial activities of food marketers. There is a weak positive significant relationship between the entrepreneurial information needs and factors affecting entrepreneurial development of the respondents (r=0.407, p=0.0001). The study recommends that there should be provision of training on entrepreneurial skills based on the identified areas of needs and there should be provision of credit facilities to the food marketers as these will enhance their productivity.

Keywords: Entrepreneurial Development, Factors, Information Needs, Food Marketers, Ilorin Metropolis
Geochemistry and paleoenvironment of the phosphorites from the Ameki Formation, Niger delta, Nigeria
Authors: Onuigbo Evangeline Njideka , Okoro Anthony Uwaoma , Chibuzor Stella ‘Nwaife’
Published: June 2020

The phosphorites of the Ameki Formation occur as nodules, pellets as well as primary phosphatic shales and siltstones. Geochemical analysis of the phosphate samples was carried out to determine its chemical composition as well as its depositional environment. The methodology applied include XRF, INAA, XRD and thin section petrography using Polarizing Microscope. The XRF result identified CaO- P2O5- F as the major mineral group, SiO2, Al2O3, Fe2O3, MgO and TiO2, which show minor occurrences and Cr, U, Pb, V, Cu, Zn, Se and Cd that occur in trace amounts. The nodules and pellets are of medium to high grade (25- 34wt% P2O5) whereas the primary phosphatic shales and siltstones are of low to medium grade (4.5– 22wt% P2O5). The phosphorites comprise mostly of francolites. The mean index of refraction estimated by Becke-line method using Standard Polarizing Microscope gave 1.634 and1.636.XRD analysis yielded an average values of 9.243 (± 0.002) A° and 6.715 (± 0.002) A° for a and c crystallographic axes respectively with an axial ratio (c/a) of 0.726for unit cell parameter, suggestive of low degree of carbonate substitution. An increase in P2O5 content is found to be accompanied by increase in CaO, CO2 and F contents, but by a decrease in H2O, organic carbon, SiO2 and Fe contents indicative of amorphous solid phase of calcium phosphate. The phosphorite is interpreted to form under high biologic productive, shelf setting. High nutrient availability in the ancient sea is linked to upwelling along the West African Coastline during the Eocene.

Keywords: Phosphorites; Geochemistry; Paleoenvironment; Ameki; Francolites; Nodules
Structure des populations de Tamarindus indica L. dans la zone Sud-Ouest du Niger
Authors: Garba Amadou , Amani Abdou , Douma Soumana , Sina Abdoul Kader Soumaila , Mahamane Ali
Published: June 2020

L’état des populations de Tamarindus indica L. des zones sud-ouest du Niger a été établi à travers l’analyse de leur structure demographiques. L’étude a été conduite dans les communes rurales du département de Torodi, région de Tillabéry et de Bana et Tanda du département de Gaya, région de Dosso. Les données ont été collectées au moyen des relevés floristiques et des mesures de diamètres à 1,30 m pour les arbres et à 20 cm pour les arbustes et par le comptage des individus ayant un diamètre inférieur à 5 cm (d > 5 cm). Les résultats obtenus montrent que les densités de l’espèce au niveau des trois sites sont faibles et comprises entre 1 à 10 individus /ha, avec un taux de régénération nul. Les distributions observées des structures en diamètres et en hauteur s’ajustent avec les distributions théoriques de Weibull. Les valeurs du paramètre de forme C, supérieures à 3,6 (C > 3,6) pour les structures en diamètres, caractérisent une distribution asymétrique négative ou asymétrique gauche, caractéristique des peuplements monospécifiques à prédominance d’individus âgés.

© 2020 International Formulae Group. All rights reserved.

Mots clés: Tamarinsus indica, structure, populations, Niger

English Title: Demographical structure of the Tamarindus indica L. in southwest of Niger (north Soudan)

English Abstract

The status of Tamarindus indica populations in southwestern Niger has been established through the analysis of their population structure. The current study was conducted in the rural district of Torodi province, Tillabéry Region and the rural district of Bana and Tanda of Gaya province, Dosso Region. Data have been collected by means of floristic sampling, and measuring diameters of 1.3 meter for trees and 20 centimeters for shrubs, and counting species with less than five centimer diameters (d > 5 cm). The results have revealed that the density of the species at the three sites is lower and between 1 to 10 species per acre. The structure distributions observed in terms of diameter and height are in lign with Weibull theoretical distributions. The form C parameter is superior than 3.6 (C > 3.6) for the diameter structures, characterize a negative asymmetric or left asymmetric distribution, characteristic of monospecific stands with a predominance of older individual.

© 2020 International Formulae Group. All rights reserved.

Keywords: Tamarindus indica, structure, populations, Niger
Antioxidant and anti-gastroenteritis activities of Funtumia elastica (Apocynaceae) and Caesalpinia bonduc (Caeasalpiniaceae)
Authors: Ouattara Abou , Traore Youssouf , Ouattara Gboko Abiba , Konate Gnidian , Ouattara Karamoko , Coulibaly Adama
Published: June 2020

Oxidative stress and infectious diseases are health problems on a global scale. The aim of this study was to evaluate the antioxidant and anti-gastroenteritis activities of hydroethanolic extracts of leaves of Funtumia elastica and Caesalpinia bonduc. After obtaining the hydroethanolic extracts, the phytochemical tests were carried out. The antioxidant activity was evaluated by different assays using 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and lipid peroxidation inhibition (FTC and TBARS methods). The agar well diffusion method was used to determine the antibacterial activity to the plant extract. The triphytochemical study has revealed that these plants extracts contain a diversity of secondary metabolites. F. elastica gave a good anti-radical activity (IC50 = 36 μg/ml). F. elastica recorded the highest rate of inhibition of lipid peroxidation with 63% (FTC method) and 65% (TBARS method). C. bonduc extract (200 mg/ml) inhibited the in vitro growth of all the bacterial strains studied in this study with inhibition diameters that evolved between 9 mm and 13 mm. These plant extracts could be used if they are improved for the treatment of gastroenteritis related to Shigella and Escherichia coli and in the care of pathologies related to oxidative stress.

© 2020 International Formulae Group. All rights reserved.

Keywords: Antioxidant, anti-gastroenteritis, Funtumia elastica, Caesalpinia bonduc, hydroethanolic extracts
Caractérisation des propriétés physico-chimiques et chimiques d'un compost issu d'un mélange de rafles de palmier et de fientes de volaille au Sud-Ouest de la Côte d’Ivoire
Authors: Gnimassoun Edwige-Gwladys Kawojou , Ettien Jean Baptiste Djétchi , Masse Dominique
Published: June 2020

En Côte d’Ivoire, la pauvreté des sols est une contrainte pour la productivité agricole. L’objectif de cette étude était de produire un compost à base de rafles de palmier afin d’améliorer les propriétés physicochimiques des sols pauvres en matières organiques. Quatre traitements T0 (720 kg de rafles + 0 kg de fientes de volaille), T1 (720 kg de rafles + 200 kg de fientes de volaille), T2 (720 kg de rafles + 400 kg de fientes de volaille) et T3 (720 kg de rafles + 600 kg de fientes de volaille), ont été compostés durant 6 mois. Les teneurs en nutriments et éléments traces métalliques (ETM) dans chacun des traitements ont été évaluées et comparées les unes par rapport aux autres. Le traitement T3 a révélé des teneurs élevées en N (14840 mg.kg-1), P (6327,5 mg.kg-1), K (19930 mg.kg-1), Mg (14160 mg.kg-1) et Ca (4140 mg.kg-1) et des concentrations en ETM en deçà des seuils de toxicité avec Pb : 88,5 mg.kg-1, Zn : 167,5 mg.kg-1et Cr : 58 mg.kg-1). Ce compost pourrait donc être utilisé comme amendement pour ces ferralsols marginaux dans le Sud-Ouest de la Côte d’Ivoire.

© 2020 International Formulae Group. All rights reserved.

Mots clés: Rafles de palmier, compost, fertilité des sols, ETM, Côte d’Ivoire

English Title: Characterization of the physicochemical and chemical properties of a compost issued from a mixture of palm empty fruit bunch and chicken manure in South West of Côte d’Ivoire

English Abstract

In Côte d’Ivoire, soil poverty reduces agricultural productivity. The aim of this study is to produce compost based on palm stalks to improve the physico-chemical properties of sandy soils with low organic matter content. Four treatments T0 (720 kg of empty fruit bunch + 0 kg of chicken manure), T1 (720 kg of empty fruit bunch + 200 kg of chicken manure), T2 (720 kg of empty fruit bunch + 400 kg of chicken manure) and T3 (720 kg of empty fruit bunch + 600 kg of chicken manure) of mixed various quantities of palm empty fruit bunch and chicken manure were up in field for 6 months. The levels of nutrients and heavy metal contents in each treatment were evaluated and compared against each other. Treatment T3 highlights high levels of N (14840 mg.kg-1), P (6327.5 mg.kg-1), K (19930 mg.kg-1), Mg (14160 mg.kg-1) and Ca (4140 mg.kg-1) and heavy metal content below the toxicity thresholds (Pb: 88.5 mg.kg-1, Zn: 167.5 mg.kg-1 and Cr: 58 mg.kg-1). This compost could therefore be used as sandy soil amendment in the South West of Côte d’Ivoire.

© 2020 International Formulae Group. All rights reserved.

Keywords: Palm empty fruit bunch, compost, soil fertility, heavy metal, Côte d’Ivoire
Impact of arbuscular mycorrhizal fungus (Rhizophagus irregularis) on disease symptoms caused by the ascomycete fungus (Mycosphaerella fijiensis M.) in Black Sigatoka-resistant banana plantain
Authors: Anda Corinne Coretta Oye , Ndong Auguste Ndoutoume , Ndoutoumou Pamphile Nguema , Loubana Pierre Michel
Published: June 2020

Banana (Musa spp.) is grown throughout the tropical and subtropical areas. The Black Sigatoka, however, represents a major threat to world production. This study evaluates the effect of the arbuscular mycorrhizal fungus (AMF) Rhizophagus irregularis MUCL 41833 on four plantain cultivars with different resistance against Mycosphaerella fijiensis. The mycorrhized banana plantlets of four cultivars were grown under greenhouse and the effect of AMF on micropropagated banana plantlets was evaluated. After 35 days, the height and the diameter of the pseudostem, then the leaf area were measured. The significant effect of the cultivar on the height of the pseudostem and the leaf area and significant effect of M. fijiensis on the diameter of the pseudostem, the height of the pseudostem and the leaf area were obtained. Plants infected with M. fijiensis show more symptoms of the disease than healthy plants. Symptoms were delayed in bananas inoculated with AMF compared to bananas not inoculated with AMF. The disease progressed more rapidly in cultivars Bâtard and C292 than in cultivars CRBP39 and F568. These results suggest that AMF may decrease symptoms of Sigatoka, at the early stage of infection with M. fijiensis. AMF may be a promising tool for the pre-adaptation of micropropagated banana plantlets.

Keywords: Plantain, Rhizophagus irregularis, arbuscular mycorrhiza fungi, Mycosphaerella fijiensis, disease control method.
Diversité à Ngaoundéré (Adamaoua - Cameroun) des proies de Myrmeleon quinquemaculatus Hagen 1853 (Neuroptera : Myrmeleontidae)
Authors: Djibo Ismaila , Bakoidi Antoine , Maoge Jean , Tinkeu Léonard Simon Ngamo
Published: June 2020

No Abstract.
Réponse du sésame (Sesamum indicum L.) à l’inoculation mycorhizienne avec des souches des champignons mycorhiziens arbusculaires indigènes du Burkina Faso
Authors: Haro Hadou , Sanon Kadidia B.
Published: June 2020

Au Burkina Faso, le sésame est essentiellement une culture de rente. Sa production augmente progressivement alors que son rendement baisse d’année en année. Ceci est lié à la pauvreté du sol en éléments minéraux tels que l’azote et le phosphore assimilable entrainant une augmentation des superficies emblavées pour cette culture et une utilisation des intrants chimiques de plus en plus grande. Or les intrants chimiques ont montré leurs limites dans leur utilisation. C’est ainsi que cette étude a été initiée afin de contribuer à l’amélioration de la production agricole durable. Dans cette étude le sésame a été cultivé en serre et inoculé avec deux inocula mycorhiziens indigènes. Les paramètres de croissance ont été mesurés à 30 et 60 jours après semis. La biomasse aérienne, racinaire et totale ont été évaluées à 60 jours après semis. Les résultats montrent une amélioration de la croissance en hauteur de 431,25%, taux de croissance relative en hauteur de 145,87%, diamètre au collet de 163,92%, biomasse aérienne de 102,9%, biomasse racinaire de 126,67% et de la biomasse totale de 110,1% par l’inoculation. Cette étude a montré des résultats prometteurs et mérite d’être approfondie par des essais aux champs.

Mots clés : Sésame, inoculation mycorhizienne, champignons mycorhiziens arbusculaires, Burkina Faso.

English Title: Sesame (Sesamum indicum L.) response to mycorrhizal inoculation with native arbuscular mycorrhizal fungi to Burkina Faso

In Burkina Faso, sesame is essentially a cash crop. Its production is gradually increasing while its yield decreases. This is linked to the soil poverty in mineral elements such as available nitrogen and phosphorus leading to an increase in the area sown for this crop and an increasing use of chemical inputs. However, chemical inputs have shown their limits in their use. This is how this study was initiated to help improve sustainable agricultural production. In this study, sesame was grown in greenhouse and inoculated with two inocula of native arbuscular mycorrhizal fungi (M1 and M2) from Burkina Faso. The growth parameters were measured at 30 and 60 days after sowing. Shoot, root and total biomass were assessed at 60 days after sowing. The results obtained show an improvement in height growth of 431.25%, the relative growth rate in height of 145.87%, the collar diameter of 163.92%, the aboveground biomass of 102.9%, root biomass of 126.67% and total biomass of 110.1% of plants inoculated with arbuscular mycorrhizal fungi compared to the inoculated control. This study has shown promising results and deserves to be deepened by field tests to assess the effect of this inoculation on sesame yield.Keywords: Sesame, mycorrhizal inoculation, arbuscular mycorrhizal fungi, Burkina Faso.
Biosecurity risks of invasive alien insect pest species pathways through shared borders with Nigeria
Authors: Bobadoye B.O. , Bobadoye A.O.
Published: June 2020

Understanding the biosecurity risks that invasive alien insect pest species currently ravaging forest trees pose is of great importance to forest ecosystems and health. This problem has posed significant challenges to researchers, relevant stakeholders, policy makers and national biosecurity agencies worldwide. This study gives an overview of the top 15 suspected insect pest species most likely to invade or have already invaded forested habitats in order to disrupt ecosystem services and biodiversity within the borders of Nigeria through borderline states (Gombe, Jigawa, Borno, Yobe, Sokoto, Cross River and Lagos). For Nigeria as a whole, all of these top 15 pest species have already established, with identified intra- border line states having no significant effect on severity of invasions ( F1,6=0.07, P=0.910) when compared to identified inter-border line states. This study concludes that the immediate biosecurity risks from already identified invasive insect pests are greater from outside country (inter) borders of Nigeria than within state-to-state (intra) borders of Nigeria. Our findings have potentially significant implications for immediate implementation of national biosecurity forest policy Acts in compliance with Cartagena and Nagoya protocols, emphasizing the need to initiate and implement biosecurity measures simultaneously with any ongoing trans-national border interventions.

Keywords: Biosecurity, invasive alien pest species, forests, Nigeria
Effect of alley plants species and plantain cultivars on yield of 60-day cowpea grain in Umudike Southern Nigeria
Authors: Onyenso A.I. , Nwobodo K.A. , Yakubu A.M. , Onyenweaku L.N.
Published: June 2020

Alley cropping or hedgerow intercropping is one of the many sub-systems of agroforestry technology. A 5 x 3 factorial experiment in a Randomized Complete Block Design (RCBD) with three replications was used to determine the effect of four alley woody species and three plantain cultivars on the yield of 60-day cowpea grain in the 2017 and 2018 farming seasons. The Alley species, plantain cultivars and Alley species x plantain cultivars treatment interactions showed no significant effects (p<0.05) on cowpea grain yield. Students t-test on the two farming seasons showed significant increase in yield of cowpea grain in 2018 than in 2017. Alley cropping technology could increase 60-day cowpea grain yield due to improved soil fertility in the system.

Keywords: alley cropping, yield, 60-day cowpea, alley woody species, plantain cultivars
Improvement of bus voltage profiles of Nigerian power network in the presence of Static Synchronous Compensator (STATCOM) and Doubly Fed Induction Generator (DFIG)
Authors: Anichebe I.B. , Ekwue A.O.
Published: June 2020

Frequent blackouts and unstable supply of electricity show that the  voltage instability problem has been one of the major challenges facing the power system network in Nigeria. This study investigates the voltage stability analysis of the Nigerian power network in the presence of renewable energy sources; FACTS device is used as a voltage controller. A 330kV, 28-bus power system network was studied using the PSS/E software-based Newton-Raphson load-flow technique. The results show that 10 out of the 28 buses had voltages lying below the statutory limit of 0.95 ≤ 1.05 p.u. The application of STATCOM and DFIG devices on two of the weakest buses restored the voltages to acceptable statutory limits. The total active and reactive power losses were reduced to 18.76% and 18.82% respectively.

Keywords: Voltage stability analysis; Integration of renewable energy sources; FACTS controllers, Reactive Power, Power Flow.
Temporal variation of groundwater resources in Ilesa West Local Government, Osun State Nigeria
Authors: Fadipe O.O. , Oladepo K.T.
Published: June 2020

The study was carried out to investigate the different groundwater resources and to generate the temporal differences over the different seasons in Ilesa West Local Government, Osun State, Nigeria. The LGA has not been provided with municipal pipe-borne water supply for over 30 years, hence they are exclusively using groundwater in form of boreholes, dugwells and springs. The physico- chemical and heavy metal parameters were determined over a period of one year covering the rainy and dry seasons. A total of 69 drinking water points which comprises of 63 dugwells, 5 boreholes and 1 spring were used for the study and they were selected to represent the built-up part of the entire study area adequately. Parameters analysed were pH, electrical conductivity (EC), temperature, total dissolved solids (TDS), chloride, sulphate, nitrate, sodium, potassium (K), calcium, magnesium, hardness, alkalinity, bicarbonate using standard methods. Analysis of heavy metals (Fe, Cr) was carried out with atomic absorption spectrophotometer (AAS) and microbiological analysis was conducted using most probable number (MPN) of counting coliforms. The data generated were subjected to descriptive statistics and line graph. The analysis of the different groundwater resources revealed a good water quality but the values of pH, TDS, EC, K, were higher than the permissible range. The concentration of Fe and Cr is very high and could constitute some health hazards in some sources. The temporal variation of the water quality parameters did not follow any definite trend but the pH, NO3, TDS, HCO3, SO4, Fe, Cr were highest in the dry months of April and December, while Ca, Mg, K, Na, hardness, and alkalinity were highest in the rainy months of June and August. The percentage of microbial distribution was highest in the months of June in the boreholes and the spring but the distribution in the dugwells was entirely different. The water from the boreholes and dugwells were generally soft and should be checked for plumbo-solvency. It is recommended that a routine monitoring of all the sources should be carried out and a treatment that will reduce the heavy metals concentrations be enforced.

Keywords: Groundwater resources, physico-chemical parameters, temporal variations, dugwells, boreholes and spring.
Vesico-uterine fistula associated with secondary infertility: A case of successful repair
Authors: Ogunlaja O.A. , Abiola O.O. , Ogunlaja I.P. , Awotunde O.T.
Published: June 2020

Genitourinary fistulas usually have devastating consequences on a woman's reproductive health. vesicouterine fistulae though uncommon variant of genitourinary fistula, are usually due to iatrogenic etiologies. The case reported was diagnosed after second caesarean section when she was being evaluated for secondary infertility.

Keywords: Youseff 'syndrome, Amenorrhea, Caesarean Section, Fistula,
Genome-wide genetic diversity, population structure and admixture analysis in Eritrean Indigenous Cattle
Authors: Goitom S , Gicheha M.G. , Njonge F.K. , Kiplangat N
Published: June 2020

Indigenous cattle play a vital role in subsistence and livelihood of pastoral producers in Eritrea. In order to optimally utilize and conserve these valuable indigenous cattle genetic resources, the need to carry out an inventory of their genetic diversity was recognized. This study assessed the genetic variability, population structure and admixture of the indigenous cattle populations (ICPs) of Eritrea using a genotype by sequencing (GBS) approach. The authors genotyped 188 animals, which were sampled from 27 cattle populations in three diverse agro-ecological zones (western lowlands, highlands and eastern lowlands). The genome-wide analysis results from this study revealed genetic diversity, population structure and admixture among the ICPs. Averages of the minor allele frequency (AF), observed heterozygosity (HO), expected heterozygosity (HE), and inbreeding coefficient (FIS) were 0.157, 0.255, 0.218, and -0.089, respectively. Nei’s genetic distance (Ds) between populations ranged from 0.24 to 0.27. Mean population differentiation (FST) ranged from 0.01 to 0.30. Analysis of molecular variance revealed high genetic variation between the populations. Principal component analysis and the distance-based unweighted pair group method and arithmetic mean analyses revealed weak substructure among the populations, separating them into three genetic clusters. However, multi-locus clustering had the lowest cross-validation error when two genetically distinct groups were modelled. This information about genetic diversity and population structure of Eritrean ICPs provided a basis for establishing their conservation and genetic improvement programmes.

Keywords: genetic variability, molecular characterization, population differentiation
Photoperiod effects on carcass traits, meat quality, and stress response in heart and lung of broilers
Authors: Baykalir Y , Simsek U.G. , Erisir M , Otlu O , Gungoren G , Gungoren A , Aslan S
Published: June 2020

This study evaluated effects of photoperiod treatments on slaughter and carcass traits, meat quality, indicators of oxidative stress, and heat shock protein 70 (Hsp70) levels of lung and heart tissues in broilers. Five hundred Ross 308 broiler chicks were used. The treatments consisted of 23 hours of continuous light and one hour of darkness (23L1D), four hours of light followed by two hours of darkness (4L2D), eight hours of light and four hours of darkness (8L4D), and 16 hours of light and eight hours of darkness (16L8D). After 42 days, two birds from each replicate were slaughtered. Birds that had been subjected to 16L8D had lower slaughter, carcass, and breast weights than the other treatments. Significant correlations were observed for slaughter, carcass and breast weights and white stripe. At 10 min post mortem, the pH of the breast was the highest in 23L1D. Breasts from birds subjected to 23L1D and 16L8D had most fat and least protein, while white striping was not different among treatments. The 4L2D treatment resulted in the highest lung glutathione (GSH) concentration. Malondialdehyde (MDA) and GSH concentrations in the heart tissues of broilers from 8L4D and 4L2D were greater than those from 23L1D and 16:8. Glutathione peroxidase (GSH-Px) and superoxide dismutase concentrations were greatest for birds subjected to 16L8D. Heat shock protein 70 was lowest in lung and heart from birds subjected to 8L4D. Thus, shorter and more frequent periods of darkness can be recommended for welfare with little compromise in performance.

Keywords: carcass quality, heat shock protein 70, oxidative stress, white stripe
Relationship of glycogen and lactate concentrations as a pork quality indicator
Authors: Zybert A , Tarczyński K , Sieczkowska H , Krzęcio-Nieczyporuk E , Antosik K
Published: June 2020

Muscle metabolites greatly determine pork quality. However, precise threshold values which indicate its deterioration or improvement are not fully known. This study aimed to determine the influences of pork Longissimus lumborum (LL) glycogen and lactate concentrations measured at 45 min post mortem on pH, colour (L*a*b*) and drip loss (DL) measured during 144 hours post mortem in order to prescribe appropriate threshold values. The investigation used 30 gilts and 30 barrows being fattened for slaughter. After slaughter, the carcasses were assigned to groups based on the observed levels of glycogen and lactate: low GlyL with glycogen ≤35 μmol/g, GlyM with glycogen between 35 and 55 μmol/g, GlyH with glycogen >55 μmol/g; LacL with lactate ≤40 μmol/g and LacH with lactate >40 μmol/g. Lower muscle pH was noted up to 24 h post mortem in the LacH group compared to LacL (P ≤0.01). 24 h post mortem higher pH was found in GlyL than in GlyM and GlyH (P ≤0.01), which were similar. Similarly no statistical differences were noted between The GlyM and GlyH groups were also similar in L*, DL96 and DL144, with lower values found for GlyL (P ≤0.01). Compared to LacH, LacL had lower L*, DL48, DL96 and DL144 (P ≤0.01) and higher a* and b* values. Muscle pH, drip loss, L* and a* values were more affected by lactate concentration if the glycogen concentration ≥35 μmol/g muscle tissue. Thus, metabolite concentration may be a useful and valuable indicator of pork quality.

Keywords: drip loss, glycolytic resources, pork colour, post-mortem muscle metabolism
Prevalence of parasites of wildlife in Yankari game reserve and Sumu wildlife park in Bauchi State, Nigeria
Authors: Atuman YJ , Kudi C.A. , Abdu P. , Abubakar A.
Published: June 2020

The role of wildlife in the epidemiology of parasites in Yankari Game Reserve and Sumu Wildlife Park in Bauchi State, Nigeria was investigated by analysis of blood, faeces and ticks collected from 106 wildlife including 4 elephants (Loxodonta africana), 11 waterbucks (Kobus ellipsiprymus), 1 hartbeest (Alcelaphus baselaphus caama), 24 elands (Taurotragus oryx), 53 zebras (Equus quagga crawshayi), 1 kudu (Tragelaphus streptsiceros) and 12 wildebeest (Connochaetes taurinus). Blood samples were examined for haemoparasites by classical parasitological techniques i.e Geimsa's stained thin, thick and buffy coat blood smear. Whereas faecal samples were examined for gastrointestinal tract (GIT) parasites using floatation and sedimentation techniques while ticks were identified morphologically. Overall prevalence of haemoparasites was fifty six percent (56%). The identified haemoparasites were Anaplasma marginale, Babesia bigemina, Babesia bovis, Theileria equi, Babesia caballi, Trypanosoma spp and Ehrlichia ruminantium. Haemoparasites identified alone or in combination with others had a significant (P <0.05) effect on mean PCV of infected animals. Sixty percent (60%) of the wildlife species were infected with GIT parasites. Types of GIT parasites identified were two protozoans (Balantidium coli and Eimeria spp) and helminths from eighteen genera including ten nematodes (Strongyle type-egg, Dictyocaulus, Cooperia, Strongyloides, Haemonchus, Trichuris, Trichonema, Oesophagostomum, Bunostomum, and Ancylostoma), four Trematodes (Fasciola, Schistosoma, Paramphistomum and Gastrodiscus) and three Cestodes (Anoplocephala, Taenia and Moniezia. Four genera of ticks, Amblyomma, Boophilus, Hyalomma and Rhipicephalus were identified on the wildlife species. Our findings indicated the presence of infective parasites in wildlife and potential risks of transmitting these parasites to in contact domestic animals and humans in the study area. Control measures should be focused on reducing parasitic infections by proper management of wildlife in the Game Reserves in Bauchi State, Nigeria.

Keywords: Gastrointestinal parasites, Haemoparasites, Prevalence, Ticks, Wildlife
Histological, microbiological, physicochemical and heavy metals evaluation of effluent from Kara Cow Market, Ogun State, Nigeria in guppy fish (Poecilia reticulata)
Authors: Sogbanmu T.O. , Sosanwo A.A. , Ugwumba A.A.A.
Published: June 2020

The Ogun River is a sink for untreated effluents discharged from the Kara Cow Market, Ogun State. In this study, microbiological, physicochemical and heavy metals evaluation were carried out on effluent from the market. Standard methods were utilised for the examination of physicochemical and microbiological parameters of the effluent. The histological effects of sublethal concentrations of the effluent were assessed in the gills, intestine and skin of Poecilia reticulata (guppy fish) over a period of 56 days following standard methods and international ethical guidelines. None of the physicochemical parameters were within the set limits by the National Environmental Standards and Enforcement Agency (NESREA) for effluent discharges into surface waters. Coliforms, pathogens and fungi were observed in the effluent with a total plate count of 2.14 x 107 cfu/mL. The median lethal concentration (96 h LC50) of the effluent to P. reticulata was 71.50 mL/L (7.15%). Histological alterations such as distorted mucosal architecture with shortening and widening of intestinal villi were observed in the intestine of exposed groups of P. reticulata at day 56. The observed adverse physicochemical parameters, histological alterations and pathogenic microbes may pose ecological and public health risks to aquatic organisms and humans respectively. It is recommended that an effluent treatment plant should be installed at the market to reduce the pollutants load of the effluent before discharge into the Ogun River.

Keywords: Effluents; histological effects; Kara Market; Ogun River; physicochemical parameters; pathogenic microorganisms; Poecilia reticulate