bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prevalence of Extended-Spectrum Beta-Lactamases (ESBLs) and Metallo-BetaLactamases (MBLs) Among Healthy and Hospitalized Children in Abraka and Eku Communities, Delta State, Nigeria
Authors: Egbule O.S. , Odih E.E. 
Published: May 2021

This study was conducted to detect the prevalence of Metallo-Beta-Lactamases (MBLs) and Extended Spectrum Beta-Lactamases (ESBLs) in bacterial isolates from clinical and community settings of two communities in Delta State, Nigeria. Eighty four isolates obtained from blood, urine, wound and stool of patients and community subjects were analyzed and identified by standard microbiological methods. Carbapenemase detection was carried out using modified Hodge test. EDTA-disc synergy test was used todetect MBLs production in 26.2% of the isolates. ESBLs production determined by double disc synergy test (DDST) was detected in 36.7% isolates of Escherichia coli, 37.5% of Pseudomonas aeruginosa and 75% of Klebsiella pneumoniae. Co-production of MBL and ESBL was observed in 31.8% of the isolates. The study observed 2 major troubling findings. The first is the prevalence and co-production of MBLs and ESBLs both in hospitalized patients and in isolates of healthy community children. Second, antibiotic resistantbacteria may be able to persist in the community free from the high selective pressure pervading in clinical settings. There is therefore the need for increased surveillance.
Keywords: Antibiotic resistance, Multidrug resistance, Healthy children, Beta-lactamases, Plasmids
Chemical Speciation and Potential Mobility of some Metals of Selected Farmland in Kogi State, North Central Nigeria
Authors: Emurotu J.E. 
Published: May 2021

The contamination of agricultural soils with heavy metals is of concern because if the soil is contaminated, the metals can be transferred to food crops. The availability of these metals to food crops depends on the forms in which they are present in the soils. In this study, sequential extraction technique was applied to assess the exchangeable, carbonate-bound, Fe-Mn oxide bound, organic bound and residual fractions in the topsoil of farmlands in Kogi State, North Central Nigeria. Proportions in non-residual soil phases were 82.6 % Cd, 48.6 % Co, 72.5 % Cu, 73.2 % Ni, 41.9 % Pb, and 84.3 % Zn. Lead (Pb) and cobalt (Co) showed the highest phase of 58.1% and 51.4 %, respectively in the residual phase. The low concentration of lead in the non-residual fraction (41.9 %) and the highly mobileexchangeable phase and pH sensitive carbonate phase is an indication that there is no increase in anthropogenic input of Pb into the environment. Cadmium, zinc and nickel are most abundant in exchangeable fraction and this can be of concern especially cadmium.
Keywords: Heavy metals, Metal speciation, Farmlands, Food crops, Metal uptake
Application of Morphostructural and Spatial Analyses in Placer-Gold Source Interpretation within Wonaka Schist Belt, Northwestern-Nigeria
Authors: Grema H.M. , Andongma W.T. 
Published: May 2021

Morphologic and placer features were used to characterize, determine the provenance, and transport distances of gold grains within the River Gagare drainage basin of the Wonaka Schist Belt. Field studies, scanning electron examination coupled with energy dispersive spectrometry and binocular microscopy were utilized to study the spatial distributions, shape, size, inclusions, primary and fluvial transport-induced deformations, as well as Cailleux flatness indices. The grains are dominantly subrounded (71%), with the length between 35 – 800 µm and width of 10 – 778 µm while the rounded grains have a mean length of 292.5 µm and width of 179 µm. Similar values for circularity and sphericity are observed in the sub-rounded grains, with slight variations of 2.7 circularity and 2.6 sphericitydistinguished in the rounded grain subset. The Cailleux flatness index range from 2.5 to 9 for subrounded grains and 2 – 15.5 for the rounded, indicating the multisource nature of the grains. The grains are consistent with short to moderate transport distances from the lode sources. The similarities in physical features, lack of delicate secondary growth structures and irregular grain outlines point to a detrital source for the placer deposits. Evidence of emulsion crystallisation type is indicated by the presence of sub- to anhedral inclusions within the Au grains.
Keywords: Placer gold, Cailleux flatness indices, Wonaka Schist Belt, Provenance, Northwest Nigeria
Knowledge of Validation Status of Point-of-care Glucometers among Veterinarians and Veterinary Technologists in Nigeria
Authors: Okorie-Kanu C.O , Okorie-Kanu O.J , Akwuobu C.A , Tizhe E.V , Antia R.E 
Published: May 2021

Point-of-care glucometers (PCGs) have of recent almost replaced the conventional laboratory methods of blood glucose determination in animals. This study evaluated the level of awareness and knowledge about the use of handheld PCGs among veterinarians and veterinary technologists. Respondents to a structured questionnaire included academic staff and laboratory technologists from veterinary schools and public and private veterinarians across Nigeria. Design of the questions progressed from whether one had ever used a PCG before or not, how they knew about the PCG, the brands used, for what purposes and on which animals. Results showed that out of 209 respondents, 75 (36%) had used PCGs. Of this number, 37 (49.33%) used PCGs for research purposes, while 36 and 6.67% had used the PCGs for diagnosis of glucose disorders in animals and for both research and diagnostic purposes, respectively. The distribution of respondents that knew about the validation status of the PCGs used was 2.67%. As values generated by each PCG vary significantly in different species, there may be chances of reporting erroneous research conclusions as well as misdiagnosis of glucose disorders with consequent erroneous therapies in such species.
Keywords: Point-of-care Glucometers, Validation status, Veterinarians.
Application of nitrogen fixing bacteria and poultry droppings for enhanced bioremediation of crude oil polluted-soil
Authors: Wokem V.C , Momoh E.D. 
Published: May 2021

The exploration, production and refining of crude oil has led to severe environmental degradation in the oil producing communities of the Niger Delta region of Nigeria. Enhanced bioremediation of tropical rainforest soil artificially polluted with crude oil, bioaugmented with nitrogen fixing bacteria (NFB) and biostimulated with poultry droppings was carried out ex situ. Soil sample was collected at 15cm depth from tropical rainforest soil of the University of Port Harcourt, Nigeria. The NFB was isolated from roots of leguminous plant Arachis hypogea, identified as Nitrobacter species. Bioaugmentation by application of NFB served as option A, option B (biostimulation by application of poultry droppings), option C (No amendment) served as the control. Bioremediation was monitored for 28 days for interval of 14 days, and determined using the percentage ratio of total petroleum hydrocarbon (TPH) losses for each period to TPH at initial day (day zero). Results of total culturable heterotrophic bacterial (TCHB) counts showed that highest range in option B (1.9×104- 2.4×109Cfu/g) than in option A (7.8×106 -2.29×107Cfu/g) and C (6.75×106 -2.6×107Cfu/g) respectively. Similarly, hydrocarbon utilizing bacterial (HUB) counts had higher range in option B (1.20×105 - 1.9×107Cfu/g) than in option A (8.30×104 - 2.30×105Cfu/g) and option C control (4.3×104 −1.69×105 Cfu/g) respectively. Changes in physicochemical parameters during the study showed reductions in nitrate, phosphate and TPH in all the options expect pH which showed slight increase in option C (6.20-6.24). Characterization and identification for bacteria revealed the following HUB genera Pseudomonas, Citrobacter, Bacillus, Corynebacterium, Micrococcus, Klebsiella, Staphylocuccus and Nitrobacter). The percentage losses in TPH from gas chromatography (GC) results showed the following; option A (44.24%) option B (61.08%) and option C - control (27.28%) respectively. The results from this study showed that option B, the application of poultry droppings as biostimulant was more efficient than the application of NFB in enhanced bioremediation of crude oil polluted soil, hence the use of poultry droppings which is available as organic waste, eco-friendly and cost-effective is recommended asbiostimulant for enhanced bioremediation in environmental cleanup of crude oil impacted-sites of the Niger Delta region of Nigeria.
Key Words: Bioremediation, Crude oil polluted-soil, Biostimulation, Bioaugumentation, Poultry droppings, Nitrogen fixing bacteria.
Mapping of groundwater potential using integrated geophysical techniques at forestry research institute of Nigeria, Ibadan, South Western Nigeria
Authors: Coker J.O. , Atilade A.O. , Alabi A.A. , Ebeniro D.S. , Layade G.O. 
Published: May 2021

Water is an essential commodity for life survival on Earth. Groundwater exists below the surface in the soil pores, fractures within rocks, fissures, and other weak geological features or zones. The aim of this research was to delineate groundwater potential within the Forest Research Institute of Nigeria (FRIN) and hence determining the possible areas suitable for siting borehole for sustainable potable water supply. Four electromagnetic traverses were carried out and ten vertical electrical sounding (VES) points were identified for detailed probing using the Schlumberger configuration. Wenner array survey was also carried out along two traverses. The VES data collected was processed using curve matching and Computer software called Winresist while Wenner array was processed using RES2DINV. The results from the interpretation of the four (4) EM profiles revealed low conductivity zone with a value ranging from 4.6 to 19.7 mS m.-1 The results of VES give a maximum of four subsurface geoelectrical layers with five curve types, which are K, Q, AK, HK, and KH. The weathered basement has a resistivity value ranging from143.8 to 450 Ωm and depth to basement ranging between 13.9 m and 39.4 m. The interpretation of the ten VES points obtained suggested that three VES points (VES 2, 5, and 7) are suitable for borehole drilling. The results of the 2D resistivity value ranges from 17.5 to 747 Ωm with a varying depth between 3.25 and 15.9 m. The results of the integrated geophysical survey techniques have proven to be an effective method for groundwater delineation in the study area.
Keywords: Aquifer, Borehole, Electromagnetic, Geoelectric, and Groundwater
Casimir, comte de Sayn-Wittgenstein et la réception des éditions de Pierre Poiret à Berleburg
Authors: von Tippelskirch Xenia 
Published: May 2021

Cet article aborde la réception des éditions de Pierre Poiret dans les milieux piétistes séparatistes de Berleburg. Grâce aux manuscrits conservés aux archives du château de Berleburg, il est possible de reconstruire l’expérience spirituelle du comte Casimir von Sayn-Wittgenstein, auteur d’une traduction des vingt volumes de la Sainte Bible de Mme Guyon éditée par Poiret en 1713-1715.
تقييم جودة مياه شرب الشبكة العامة في بعض مناطق وادي الشاطيء جنوب ليبيا
Authors: إمريمي محمود عبدالله , الجربي علي مختار 
Published: May 2021

أجريت هذه الدراسة لغرض تقييم جودة مياه شرب الشبكة العامة ببعض مناطق وادي الشاطيء، وشملت عشر عيّنات بواقع ثلاثة مكررات لكل عينة من مناطق أشكدة وقيرة وبراك وتامزاوة والقرضة وبرقن وونزريك وإدري، وأظهرت نتائج التحاليل الفيزيائية والكيميائية والبكتريولوجية تباين في جودة مياه شرب الشبكة العامة فكانت نتائج العكارة تراوحت ما بين 0.57 - 7 JTU، أما قيم الأس الهيدروجيني pH فكانت ما بين 6.47 - 7.37، بينما كان تركيز كل من الأملاح الذائبة الكلية، العسر الكلي، الكالسيوم، الماغنسيوم، الصوديوم، البوتاسيوم، الكلوريد، النترات، الكبريتات، البيكربونات، الحديد، المنجنيز، الزنك، النحاس تراوح ما بين 648 - 1523، 52 - 224، 11 - 37، 2 - 33، 26 - 112، 17 - 34، 121 - 540، 3-33، 29 - 695، 46 - 78، 0.03 - 2.77، 0.07 - 2.07، 0.0 – 1.0،0.0 - 0.026 ملجم/ لتر على التوالي، في حين سجل خلو جميع العينات من عنصر الرصاص، وتراوح العدد الكلي للبكتيريا ما بين 7- 65 وحدة تكوين مستعمرة / مل، وخلو جميع العينات من بكتيريا القولون.
G protein-coupled estrogen receptor GPR30 exerts vasoprotective effects in apolipoprotein E-deficient mice
Authors: Jehle Julian , Becher Ulrich , Nöthel Moritz , Adler Sandra , Groll Katharina , Nickenig Georg , Tiyerili Vedat 
Published: May 2021

IntroductionGPR30 is an intracellular transmembrane G protein-coupled receptor that mediates non-genomic estrogen signaling. The GPR30 agonist G-1 modulates glucose homeostasis and vascular function. However, its impact on vascular inflammation and atherogenesis has not yet been investigated in the atherosclerotic apolipoprotein E-deficient(ApoE-/-) mouse model.Material and methodsApoE-/- mice were fed a high-cholesterol diet for 7 weeks while being treated with the selective GPR30 agonist G-1 (n=6-7). After the treatment period, vascular relaxation capacity, vascular oxidative stress, and atherosclerotic plaque burden were assessed. In vitro, reactive oxygen species, expression levels of the angiotensin II type1(AT1) receptor, and proliferation rate were quantified in human coronary artery smooth muscle cells(HCASMC).ResultsG-1 significantly improved glucose tolerance in vivo (142.2±8.1mg/dl vs. 204.6±13.3mg/dl), G-1 reduced vascular oxidative stress (221±88RLU/s/mg vs.1,983±885RLU/s/mg) and improved endothelium-dependent vasodilation (relaxation to 35.1±4.5% vs.63.0±4.6%). Furthermore, treatment with G-1 significantly reduced the atherosclerotic plaque burden of female ApoE-/- mice (56.5±3.7% vs.75.5±2.9%). In vitro, G-1 provoked a significant downregulation of the AT1 receptor in HCASMC (0.67±0.09-fold). Furthermore, G-1 blunted angiotensin II-induced ROS production by HCASMC (817±7RLU/s/mg vs.1,625±105 RLU/s/mg) and diminished HCASMC proliferation (-26.8±2.7% vs.+50.4±1.7%).ConclusionsSelective GPR30 activation improves glucose tolerance in vivo and decreases vascular ROS production in vitro and in vivo. In vitro, the antioxidant effect might be mediated by downregulation of the AT1 receptor. In vivo, the antioxidant effect of G-1 is associated with an improved endothelial function and a reduced atherosclerotic plaque burden in ApoE-deficient mice, indicating beneficial vascular effects of GPR30 activation. GPR30 agonism might thus be a compelling treatment strategy against atherosclerosis.
Examining the Home Factors that Influence Performance in KCSE in Secondary Schools in Mbeere North Sub-County of Embu County, Kenya
Authors: Njagi Magdalene Wanjiru 
Published: May 2021

The purpose of this study was to identify the home factors that influence performance in Kenya Certificate of Secondary Education (KCSE) in secondary schools in Mbeere North Sub-county. A survey design was used to conduct this study. The study was carried out in Mbeere North Sub-county, which is one of the divisions of Mbeere north Sub County. Mbeere North Sub-county has 4 locations. The target population was all private and public secondary schools in Mbeere north Sub County containing an estimated population of 2002 students, 113 teachers and 12 headteachers. Samples from the government schools in Mbeere North Sub-county were selected using stratified sampling technique. Purposive sampling to select the headteachers and teachers was used. The use of systematic sampling was employed; therefore, ten per cent (10%) of the target student population was incorporated in the sample of the population. A pilot study was conducted in one of the secondary schools but not included in the sample. Data was collected on variables such as parents' occupation, parents' commitment to students' learning, among others. Descriptive statistics such as percentages and frequency distribution were used in the presentation of the data. There was found to be a positive correlation between various home factors such as absenteeism, miraa farming and parental occupation and academic achievement. The findings from this study also suggest that students who performed dismally in KCSE examinations also were from homes where parents had low-income occupations (peasants). The study recommended that strict discipline should be instilled in students, while the community is sensitized concerning drug use and abuse.
Modelos Tradicionais de Estudo de Comportamento do Consumidor
Authors: Rezende Sônia Regina Gouvêa , Coelho Cristiano 
Published: May 2021

O artigo objetiva sistematizar os vários modelos de investigação sobre o comportamento do consumidor, descrever as estratégias de pesquisas relevantes para tomada de decisão do consumidor e ponderar sobre as características de cada modelo teórico. Destarte, o artigo discorre sobre os aspectos históricos, teóricos e metodológicos dos modelos de estudo do comportamento do consumidor. A partir dessa revisão, verifica-se na Psicologia a predominância de explanações prioritariamente voltadas para variáveis disposicionais, com uma orientação sociocognitiva no campo das relações de troca entre produtos ou serviços. O presente trabalho defende a opção pelo Behavioral Perspective Model (BPM), visto sintetizar evidências empíricas em sua base teórica comportamental derivadas de identificação de variáveis situacionais. O BPM tem como fonte formadora os conceitos do Behaviorismo Radical de Skinner utilizando a contingência tríplice como instrumento teórico. Pesquisas com a abordagem teórica do BPM apresentam uma perspectiva ambiental e de histórico de aprendizagem para analisar os efeitos das consequências sobre este comportamento operante que é mantido por consequências utilitárias e informativas associadas a respostas relacionadas ao consumo.
DESAFIOS ENCONTRADOS PELA DOCÊNCIA NO ENSINO REMOTO DIANTE DA PANDEMIA: UMA REVISÃO BIBLIOGRÁFICA
Authors: Lima Hommel Almeida de Barros , Mota Neto Ivaldo Barbosa da 
Published: May 2021

Essa pesquisa tem como objetivo geral identificar na literatura os desafios encontrados pela docência no ensino remoto diante da pandemia. O Objetivo específico desse estudo é analisar na literatura quais os desafios encontrados pela docência com as Tecnologias Digitais da Informação e Comunicação (TDIC) diante do ensino remoto na pandemia. Foi aplicado um estudo de revisão bibliográfica nas bases de dados Google Acadêmico e SciELO, sendo realizado no período de janeiro de 2021. Utilizaram-se os descritores e o cruzamento das palavras-chave para facilitar a busca dos dados. A pesquisa passou por três etapas: 1º leitura dos títulos, 2º leitura dos resumos e 3º leitura na íntegra. A análise de dados foi através de fichamento. O estudo identificou que grande parte dos professores não receberam formação para realizar as aulas em plataformas digitais, causando insegurança e um desafio na sua prática pedagógica. Observou-se que outro desafio encontrado pelos docentes no ensino remoto para exercer suas aulas foi a obtenção do uso tecnológico que grande parte dos discentes não tinha objetos tecnológicos (telefone, tablets, notebook).
Uji Viabilitas Bakteri Aeromonas hydrophila Dengan Metode Penyimpanan Beku Pada Media TSB dan Gliserol
Authors: Seniati Seniati , Mulyani Rahmi , Syahruddin Syahruddin 
Published: May 2021

Bakteri A. hydrophila merupakan salah satu bahan yang sering digunakan dalam dunia pendidikan baik sebagai bahan praktikum maupun bahan penelitian, sehingga intensitas kebutuhannya sangat tinggi khususnya di laboratorium Kesehatan Ikan, Politeknik Pertanian Negeri Pangkep. Oleh karena itu perlu dilakukan penelitian metode penyimpanan A. hydrophila yang tepat sehingga ketersediaannya di laboratorium selalu berkesinambungan, sifat fisika dan kimianya selalu terjaga dan kemungkinan untuk munculnya strain baru lebih kecil. Penelitian in bertujuan untuk mengetahui komposisi media TSB dan gliserol yang terbaik yang dapat mempertahankan kehidupan A. hydrophila yang disimpan pada pada suhu beku dalam jangka waktu tertentu. Penelitian ini berlangsung selama empat bulan di Laboratorium Kesehatan Ikan Politeknik Pertanian Negeri Pangkep. Metode yang digunakan adalah penyimpaan A. hydrophila dengan menggunakan media TSB dan gliserol dengan konsentrasi yang berbeda-beda (80% + 20%, 70% + 30% dan 60% + 40%). Pemantauan perubahan sifat sifat dan karakterisasi A. hydrophila dilakukan pada awal penyimpanan, dua minggu, sebulan, dua bulan dan tiga bulan umur penyimpanan. Hasil yang diperoleh setelah 3 bulan masa penyimpanan menunjukkan bahwa penyimpanan bakteri A. hydrophila pada media 70 % TSB yang ditambahkan gliserol 30% dapat mempertahankan pertumbuhan bakteri dengan penurunan populasi terkecil dibandingkan perlakuan lainnya. Disisi lain, bakteri A. hydrophila dapat mempertahankan sifat dan karakteristiknya, yaitu tipe penggandengan sel, sifat pembentukan koloni dan sifat kimia selama masa penyimpanan.
DETEKSI TESPONG (Oenanthe javanica) PADA BAHAN BAKU DAUN ASHITABA (Angelica keiskei) MENGGUNAKAN METODE FTIR YANG DIKOMBINASIKAN DENGAN PCA
Authors: Yuliantini Anne 
Published: May 2021

Ashitaba (Angelica keiskei) merupakan salah satu tanaman yang digunakan sebagai bahan baku obat tradisional dan tespong (Oenanthe javanica) diketahui sebagai tanaman yang satu famili dengan ashitaba. Karena ketersediaan ashitaba yang sedikit ditambah dengan harganya yang relative mahal, dapat menjadi alasan ditambahkannya bahan lain dalam bahan baku ashitaba. Tujuan dari penelitian ini adalah untuk mengidentifikasi adanya tespong pada serbuk daun ashitaba menggunakan metode FTIR yang dikombinasikan dengan PCA. Penelitian ini terdiri dari 4 tahapan utama, yaitu determinasi tanaman, maserasi dengan etanol, pengukuran spectrum IR, dan analisis PCA. Hasil analisis PCA menunjukkan nilai PC1 dan PC2 berturut-turut sebesar 71 dan 22% dengan nilai eigen value lebih dari 1 dan plot PCA menggambarkan keterpisahan daerah antara ashitaba dan tespong. Dari ketiga sampel yang diproyeksikan terhadap plot PCA, terdapat sampel yang diduga mengandung tespong dan bahan campuran lain. Dari hasil penelitian ini disimpulkan bahwa metode FTIR yang dikombinasikan dengan PCA dapat menjadi metode alternative dalam mendeteksi tespong dalam bahan baku ashitaba.Kata kunci: Ashitaba; FTIR; PCA; tespong