bluuebunny/crossref_metadata_2025_split huggingface dataset:
Management of aquatic plants and their contributions to fisheries production in Ikere-Gorge, Iseyin, Oyo State, Nigeria
Authors: Ajagbe S.O. 
Published: March 2021

Aquatic plants are important in freshwater ecosystems. They provide food, shelter, spawning and nursery grounds for fish. They are usually found at the littoral parts of freshwater ecosystems. The abundance, distribution and diversity of aquatic plant of Ikere-gorge, Iseyin, Nigeria were examined between January 2017 and December 2018. There are twelve fishing villages in Ikere-gorge and four villages were randomly selected. Aquatic plants were sampled and collected with the help of hired fishermen. The collected aquatic plant samples were identified at the Forest Herbarium of the Forestry Research Institute of Nigeria with appropriate keys. This work identified 13 families and 23 species of aquatic plants. Cyperaceae family recorded the highest (4) number of individual species while Salvinia molesta had the highest abundance in all the sampling sites. The ecological classification of the aquatic plants showed that 14 species are emergent; 7 species floating and 3 species submerged. Site C had the most abundance (9220) of aquatic plants, followed by site D (8490), site B (8130) and site A (7940). The gamma (γ) and beta (β) diversities were 23 and 0.01 respectively. The alpha (α) diversity included Dominance (0.08), Simpson (0.92) and Shannon-Wiener (2.72) respectively. These results show that Salvinia molesta and Najas guadalupensis are the most and least abundant aquatic plants in Ikere-gorge respectively; which may be due to their ecological status. Moreover, management of aquatic plants is an integral part of fisheries management for sustainable fisheries. Therefore, their management is essential for the maintenance of aquatic biodiversity.
Key words: aquatic plants, diversity, emergent, floating, submerged
Improvement of sorghum productivity through introducing integrated soil fertility management options in the Northern Sudanian zone of Burkina Faso
Authors: Ouedraogo Jean , Serme Idriss , Pouya Mathias Bouinzemwendé , Sanon Sogo Bassirou , Ouattara Korodjouma , Lompo François 
Published: March 2021

Agricultural intensification is a necessity to ensure food security in the Sahel countries. This study aimed at assessing the effects of technological packages of integrated soil fertility management on sorghum productivity. An experiment was set up in dispersed blocks design where each producer constituted a repetition. Fertilizers were applied using the microdose technique. The results showed that the best grain yields of sorghum are obtained with the technology combining stone bunds + zaï + NPK + urea with respectively 1428.70 kg / ha in 2018 and 1158.40 kg / ha in 2019. The grain yield gaps between the current farmers’ practice under stone bunds and ISFM packages varied from 5.66% to 44.45% in 2018 and from 25.15% to 53.80% in 2019. In the context of climate variability and climate change, these results show that water harvesting techniques such as stone bunds and the zaï, associated with microdose are viable and sustainable alternative for improving agricultural productivity.
L’intensification agricole est une nécessité pour assurer la sécurité alimentaire dans les pays du sahel. Cette étude avait pour objectif d’évaluer les effets de paquets technologiques de gestion intégrée de la fertilité des sols sur la productivité du sorgho. Pour ce faire, un dispositif en blocs dispersés a été mis en place en milieu paysan où chaque producteur constituait une répétition. Les paquets technologiques se composent des formules de fumures et/ou des techniques de conservation des eaux et des sols (CES). Les engrais ont été apportés selon la technique de la microdose. Les résultats ont montré que les meilleurs rendements grains du sorgho ont été obtenus avec la technologie cordons pierreux + zaï + NPK + urée avec respectivement 1428,70 kg/ha en 2018 et 1158,40 kg/ha en 2019. Les gaps de rendement grains entre la pratique actuelle des producteurs sous cordons pierreux et les paquets technologiques ont varié de 5,66% à 44,45% en 2018 et de 25,15% à 53,80% en 2019. Dans le contexte de la variabilité et des changements climatiques, ces résultats montrent que la collecte et la valorisation de l’eau à la parcelle à travers les cordons pierreux et le zaï, associée à la microdose est une alternative viable et durable d’amélioration de la productivité agricole.
Evaluation of the quality of "pure water" sold in Niamey, Niger
Authors: Mijitaba Sahirou Bachir , Laouali Mahaman Sani , Ayouba Mahamane Abdoulkadri , Hassane Adamou Hassane , Amadou Haoua , Manzola Abdou Salam , Garba Hassane Barhamou 
Published: March 2021

In recent years, sachet water known as "pure water" has gained the confidence of the Nigerien public because of its low price, availability, convenience, and quality perception by consumers. This study highlights the impact of storage on the quality of pure water sold in Niamey. Thus, eleven of the twelve analyzed physicochemical parameters have been monitored during six weeks of "pure water" storage in the sun and at laboratory ambient temperature. From the results obtained, the physicochemical parameters are in norms except the turbidity and the residual chlorine. On the Bacteriological plan, the total germs, the salmonellae, the fecal streptococci and the Escherichia coli have been identified. In addition, the monitoring of the evolution of the parameters analyzed during six weeks of storage revealed a change of the organoleptic quality that appears in the fourth week and a development of Escherichia Coli for the "pure water" exposed in the sun. This study showed, on the one hand, that these "pure water" would be unfit to the human consumption and on the other hand, their storage for a prolonged period and a high temperature affects their qualities.
Les eaux conditionnées en sachet plastique, communément appelées "pure water", ont depuis quelques années, gagné la confiance du public nigérien en raison de leur faible prix, leur disponibilité, la commodité, et de la perception de qualité par les consommateurs. Ce travail étudie l’impact du stockage sur la qualité des "pure water" vendues à Niamey. Ainsi, onze parmi les douze paramètres physico-chimiques analysés ont été suivis pendant six semaines de stockage des "pure water" au soleil et à la température ambiante de laboratoire. A l’issue des résultats obtenus, les paramètres physico-chimiques sont dans les normes hormis la turbidité et le chlore résiduel. Sur le plan bactériologique, les germes totaux, les salmonelles, les streptocoques fécaux et les Escherichia colis ont été identifiés. Par ailleurs, le suivi de l’évolution des paramètres analysés pendant six semaines de stockage a révélé une altération de la qualité organoleptique qui se manifeste à la quatrième semaine et un développement des Escherichia colis pour les "pure water" exposées au soleil. Cette étude a montré, d’une part, que ces "pure water" seraient impropres à la consommation humaine et d’autre part, leur stockage pendant une période prolongée et une température élevée affecte leurs qualités.
Estimation of trip generation rates for residential land use in Uyo, Nigeria
Authors: Usanga I.N. , Etim R.K. , Umoren V. 
Published: March 2021

Change in trip rates affects a transportation system and could lead to the redesign of the transport infrastructure in order to satisfy the new demand. This study estimates trip generation rates for residential land use in Uyo using cross classification method. Five (5) residential estates were considered and household survey carried out to collect trip data from 500 households on purpose and mode of travel through household interview and their response recorded in questionnaire. Four independent variables (household size, household income, car ownership, number of employed persons) were used for the study based on the prevailing conditions of theresidential land use. Cross-classification trip rates were developed from the most significant variables; household size, household income and car ownership. The analysis indicated that work trip produced the highest reported trip rates of 29.6% followed by religious trip of 24.7%. Similarly, private car trips contributed 42.8% of trips made by mode of travel as the highest trip. It was found that household size is the strongest socio-economic variable that influence trip generation in residential land use in Uyo. The cross-classification trip rates developed in this study could provide basis for the estimation of trip generation in residential land use in Uyo.
Keywords: Trip generation; analysis of variance, ANOVA; cross classification
A review on wireless power transfer: Concepts, implementations, challenges, and mitigation scheme
Authors: Sidiku M.B. , Eronu E.M. , Ashigwuike E.C. 
Published: March 2021

This paper reviews the current strides in the wireless power transfer (WPT) system. The paper discusses the classification of wireless power transfer, its application, trend and impact on society, advantages as well as disadvantages. It also presents a comparative analysis of existing work done by researchers in the field of wireless power transfer showing the shortcomings in various topologies, communication, and optimization methods used to increase the overall performance efficiency and proffer direction for further studies.
Keywords: wireless power transfer, application, advantages, disadvantages topologies, communication, optimization, efficiency
Effect of locally sourced Nigerian gypsum on the strength and microstructure of Portland cement mortar
Authors: Muhammad A.D. , Amartey Y.D. , Kaura J.M. , Ijimdiya T.S. , Lawan A. 
Published: March 2021

The objective of this study was to investigate the suitability of Nigerian, sourced Gypsum for the manufacture of Portland cement. Gypsum samples were obtained from eighteen deposits across Nigeria. These were classified into five purity groups based on their calcium sulphate content.Foreign Gypsum, imported from Morocco, was used as control. Six cement samples where produced for each of the five Gypsum purity groups by grounding and blending cement clinker with 3%, 4%, 5%, 6% and 7% Gypsum content. The group 1 cement mix (having not more than 65% calcium sulphate content) has displayed flash set and could not be moulded and therefore not used for further analysis. Cement mortar prisms were produced for the groups 2, 3, 4 and 5 cement mixes, and subjected to flexural and compressive strength tests at 7, 14, 21 and 28 day curing periods. The cement mortar prisms were also subjected microstructure analysis at 7 and 28 days curing period. The spongy, gel and whitish colouration observed from the microstructure of the specimens indicated silicates enriched regions which have proven the strength increase from 7 to 28 day curing period. The optimum gypsum content of 5.5% was recommended. The results show that all but the class one gypsum with less than 65% purity content are suitable for cement manufacture.
Keywords: Gypsum, clinker, mortar, microstructure, compressive strength, flexural strength
An assessment of cost escalation in building construction project
Authors: Nazif A. , Mustapha A.K. , Sani F. 
Published: March 2021

Estimating of cost for building construction projects with minimum error at the conceptual stage of project development is quite essential for planning. This study seeks to evaluate factors responsible for cost escalation of building construction projects. Questionnaires were administered to examine and assess these factors. Subsequently, the mean score value of each factor was determined. In addition, Correlation and Linear regression analyses were used to establish the relationship between these factors. Factors responsible for cost escalation in projects were examined as well as the impact of those factors, and occurrence of those factors on project cost. The result of the analysis showed that, the most agreed factors responsible for project cost escalation were; inadequate supervision, irregular payment, and design error, having high mean values of 4.25, 4.20, and 4.15, respectively. Also, correlation analysis result established that the factors responsible for cost escalation and the impact of cost escalation had significant R and R2 of 0.81 and 0.70 respectively. Addressing these factors would go a long way in reducing the escalation of building project cost. Never the less, an effective cost management strategy is absolutely necessary to safeguard and sustain the construction industry.
Keywords: cost escalation, building project, construction, regression analysis
Badiou en Argentina. Acontecimiento y las vicisitudes de una recepción temprana y política
Authors: Starcenbaum Marcelo 
Published: March 2021

El objetivo de este trabajo es demostrar que la recepción de Alain Badiou en Argentina tuvo un carácter temprano y político. Para ello, analizaremos la revista Acontecimiento, que durante veinticinco años llevó a cabo una lectura de la realidad argentina y latinoamericana a través de tesis y conceptos provenientes de la obra del filósofo francés. En la primera mitad de la década de 1990 la revista procesará el derrumbe del socialismo real y la imposición de una gramática política democrática. En la segunda mitad de la década de 1990, diferentes experiencias políticas serán caracterizadas como una nueva secuencia política desplegada a distancia de los partidos y el Estado.
Storytelling in Online Classes as an Oral Communication Strategy during the Pandemic
Authors: Jaca Cristie Ann L. 
Published: March 2021

The covid-19 pandemic has affected the students’ learning mentality as they become passive during online classes due to what is happening around them. The focus of teaching now is to make the students feel comfortable learning despite distractions caused by the pandemic. This paper presents storytelling as an oral communication strategy during online classes to be comfortable and motivated in their learning. This study used the descriptive research method that describes storytelling as an instructional strategy in online classes for students to be engaged and motivated to learn. The study's findings indicate that the use of stories and the act of telling personal stories have developed the students' expressive language and provided students the opportunity to express their ideas in a non-threatening environment. It proved that storytelling during the online class positively impacted the students’ oral communication skills. It helped students communicate their thoughts and feelings without fear of being judged. Moreover, it offered opportunities for students to participate in class.
Manajemen Nyeri Terkini pada Pasien Pasca Seksio Sesarea
Authors: Ahmad Muh Ramli , Taufik Rezki Hardiyanti 
Published: March 2021

Prosedur Seksio Sesarea (SS) seringkali menyebabkan nyeri sedang hingga berat selama 48 jam. Tujuan manajemen nyeri pascabedah adalah untuk memberikan kenyamanan pada pasien, menghambat impuls nosiseptif, dan menumpulkan respon neuroendokrin terhadap nyeri, yang dengan demikian mempercepat kembalinya fungsi fisiologis. Selain itu, manajemen nyeri yang adekuat pada pasien SS memungkinkan mobilisasi dini untuk mencegah risiko tromboemboli yang meningkat selama kehamilan dan pasien perlu bebas nyeri untuk merawat bayi serta memberikan ASI secara efektif. Mekanisme nyeri pascabedah terdiri dari sensitisasi perifer dan senstisasi sentral dari susunan saraf. Dampak klinik sensitisasi sistem saraf berupa hiperalgesia dan alodinia. Sensitisasi pascabedah akan mengakibatkan penderitaan bagi pasien sehingga pada akhirnya dapat meningkatkan angka morbiditas dan mortalitas pascabedah, oleh karena itu manajemen nyeri pascabedah harus ditujukan ke arah pencegahan dan meminimalkan terjadinya proses sensitisasi. Analgesia multimodal dengan mengkombinasi obat yang menghambat sensitisasi perifer dan sentral, dengan opioid sebagai analgesia penyelamat dapat menjadi pilihan untuk memberikan manajemen nyeri yang adekuat dan meminimalkan efek samping.

Current Practice for Post Operative Pain Management in Caesarean Section
Abstract
Caesarean section (CS) is frequently followed by moderate to severe pain up to 48 hours after surgery. Postoperative pain management is aimed to provide postoperative comfortness, inhibits nociceptive impulse, and blunts neuroendocrine response to pain, thus enhance the return of physiological function. Moreover, an adequate pain management in CS patients allows early mobilization in preventing the increased of thromboemboli risk during pregnancy, the need of patients to be pain free in taking care of the baby as well as effective breastfeeding. Postoperative pain mechanism consists of peripheral and central senzitisation of nervous system. Clinical impact of nervous system sensitization including hyperalgesia and allodynia. Postoperative sensitization resulted in patient’s suffering that increase morbidity and mortality rate eventually. Therefore, postoperative pain management should be directed to prevent and minimalize sensitization process. Multimodal analgesia by combining analgesics inhibited peripheral and central sensitization, with opioid as rescue analgesic may be preferred to provide adequate pain management and to minimalize the adverse effects.
Manajemen Anestesi untuk Seksio Sesarea pada Pasien Pre Eklampsia Berat yang Terinfeksi Covid-19
Authors: Supraptomo RTH 
Published: March 2021

Komplikasi hipertensi tercatat 6–8% pada kehamilan dan menjadi kontributor yang signifikan morbiditas dan mortalitas maternal dan perinatal. Di Amerika Serikat, preeklamsia menjadi satu dari tiga besar penyebab utama kematian ibu hamil. Penanganan yang tidak sesuai dengan standar, sering menjadi penyebab utama yang menyebabkan peningkatan morbiditas dan mortalitas pada ibu hamil. Seorang wanita 30 tahun early warning score (EWS) score 6 dengan preeklampsia pada sekundigravida (G2P1A0) hamil preterm belum dalam persalinan, riwayat seksio sesarea 1x pro seksio sesarea transperitoneal emergensi dengan status fisik ASA IIE, direncanakan dilakukan anestesi dengan teknik regional anestesi sub-arachnoid block (SAB). Manajemen anestesi pada kehamilan dengan pre-eklampsia meliputi preoperatif, intraoperatif dan postoperatif. Pada masa pandemi COVID-19 dibutuhkan penggunaan alat pelindung diri (APD) yang memadai selama tindakan perioperatif. Perhatian khusus pada anestesi pasien terinfeksi COVID-19 meliputi penggunaan ruangan bertekanan negatif, meminimalisir instrumentasi jalan nafas, serta penggunaan APD level 3.

Anesthesia Management for Caesarean Section in Severe Pre-Eclampsia Patients Infected with Covid-19
Abstract
Hypertensive complications account for 6-8% of pregnancy and are a significant contributor to maternal and perinatal morbidity and mortality. In the United States, preeclampsia is one of the top three causes of death for pregnant women. Handling that is not in accordance with standards is often the main cause that causes increased morbidity and mortality in pregnant women. A 30-year-old woman with early warning score (EWS) score 6 with preeclampsia in secondary pregnancy (G2P1A0) who is preterm pregnant yet in labor, a history of cesarean section 1x pro-cesarean section emergency transperitoneal with ASA IIE physical status, planning to perform anesthesia with regional anesthesia technique. sub-arachnoid block (SAB). Anesthesia management in pre-eclampsia pregnancy includes preoperative, intraoperative and postoperative. During the COVID-19 pandemic, adequate personal protective equipment (PPE) is required during perioperative measures. Special attention to anesthesia for patients infected with COVID-19 includes the use of negative pressure rooms, minimizing airway instrumentation, and the use of level 3 PPE.
PENGARUH PUPUK FOSFAT TERHADAP PERTUMBUHAN DAN PRODUKSI MENTIMUN JEPANG (Cucumis sativus L.)
Authors: Oksilia O , Alby Silahuddin 
Published: March 2021

Penelitian ini bertujuan untuk mengetahui pengaruh pupuk fosfat terhadap pertumbuhan dan produksi mentimun Jepang (Cucumis sativus L) di polibeg. Rancangan yang digunakan adalah rancangan acak kelompok (RAK) dengan 6 (enam) perlakuan dosis pupuk fosfat, yang terdiri dari 0, 15, 20, 25, 30, 35 g SP36/polibeg. Masing-masing perlakuan diiulang sebanyak 4 kali.
Hasil penelitian ini menunjukkan, bahwa pemberian pupuk fosfat berpengaruh sangat nyata terhadap jumlah bunga jantan per polibeg dan berpengaruh nyata terhadap jumlah bunga betina per polibeg, jumlah buah per polibeg, berat segar buah per polibeg serta berpengaruh tidak nyata terhadap tinggi tanaman. Secara keseluruhan mentimun jepang dengan perlakuan pupuk fosfat 25 g SP36/polibeg (P3) memberikan hasil yang lebih baik dibandingkan dengan perlakuan yang lainnya.
Stable isotope signatures of soil nitrogen on an environmental–geomorphic gradient within the Congo Basin
Authors: Baumgartner Simon , Bauters Marijn , Barthel Matti , Drake Travis W. , Ntaboba Landry C. , Bazirake Basile M. , Six Johan , Boeckx Pascal , Van Oost Kristof 
Published: March 2021

Abstract. Nitrogen (N) availability can be highly variable in tropical forests on regional and local scales. While environmental gradients influence N cycling
on a regional scale, topography is known to affect N availability on a local scale. We compared natural abundance of 15N isotopes of soil
profiles in tropical lowland forest, tropical montane forest, and subtropical Miombo woodland within the Congo Basin as a proxy to assess
ecosystem-level differences in N cycling. Soil δ15N profiles indicated that N cycling in the montane forest is relatively more
closed and dominated by organic N turnover, whereas the lowland forest and Miombo woodland experienced a more open N cycle dominated by
inorganic N. Furthermore, we examined the effect of slope gradient on soil δ15N within forest types to quantify local differences
induced by topography. Our results show that slope gradient only affects the soil δ15N in the Miombo forest, which is prone to
erosion due to a lower vegetation cover and intense rainfall at the onset of the wet season. Lowland forest, on the other hand, with a flat
topography and protective vegetation cover, showed no influence of topography on soil δ15N in our study site. Despite the steep
topography, slope angles do not affect soil δ15N in the montane forest, although stable isotope signatures exhibited higher
variability within this ecosystem. A pan-tropical analysis of soil δ15N values (i.e., from our study and literature) reveals that
soil δ15N in tropical forests is best explained by factors controlling erosion, namely mean annual precipitation, leaf area index,
and slope gradient. Erosive forces vary immensely between different tropical forest ecosystems, and our results highlight the need for more spatial
coverage of N cycling studies in tropical forests, to further elucidate the local impact of topography on N cycling in this biome.
THE MOUTH GATE SOFT TISSUE SCAR DEFORMITY CORRECTION BY VESTIBULOPLASTIC ORIGINAL METHOD
Authors: აწყვერელი ლ. Atskvereli L. , სეხნიაშვილი ნ. Sekhniashvili N. , ბიბიჩაძე მ. Bibichadze M. , კეპულაძე მ. Kepuladze M. 
Published: March 2021

The methods of the present vestibuloplastics basically ensure satisfactory functional and cosmetic effects, in cases of typical correction of the low arch of the mouth gate. The work sets out vestibuloplastic original method, which allows us to model the arch of the gate, when there is a significant tissue deficit, by using the tissue scrap taken from the vestibular surface of the lip. The method provides good functional and aesthetic effect and can be used on both jaws.