bluuebunny/crossref_metadata_2025 huggingface dataset:
Application of Double Seasonal Autoregressive Integrated Moving Average (DSARIMA) for Stock Forecasting
Authors: Silfiani Mega , Hayati Farida Nur , Azka Muhammad
Published: July 2023

Background: Stock price forecasting assists investors to anticipate risks and opportunities in making prudent investments and maximizing returns.
Objective: This study aims to identify the most accurate model for stock forecasting.
Methods: This paper utilized the daily closing stock price of Unilever Indonesia, Tbk (UNVR) from January 1, 2018 to July 31, 202.  Double Seasonal Autoregressive Integrated Moving Average (DSARIMA), was utilized in this study. Mean Absolute Scaled Error (MASE) and Median Absolute Percentage Error (MdAPE) are used to compare forecasting accuracy.
Results: Following conducting each model, we assessed that the best models are DSARIMAX (0,1,[4]) ([3],1,1)5(1,1,0)253, regarding MASE and MdAPE corresponding to approximately 1.423 and 0.111. The scope of this study has limitations to a test set for one-month forecast periods.
Conclusion: As stock prices rise, investors require precise forecasts. Models of forecasting must perform well. This analysis shows how the DSARIMA generate forecasts stock prices more accurately. This investigation evaluated the closing stock price of UNVR. Both MASE and MdAPE assess prediction. After analyzing each model, DSARIMAX (0,1,[4])([3],1,1)5(1,1,0)253 has the lowest MASE and MdAPE values, 1.423 and 0.111, respectively. The procedure lasted one month. Research may combine forecasts and improve their accuracy.
Gazâlî’nin Mezhebî Kimliği Üzerine Anakronik Şiî Yorum; Gazâlî Şiî Olabilir mi?
Authors: GÜNDÜZ Ramazan
Published: July 2023

Ebû Hâmid Muhammed Gazâlî, İslam düşünce tarihinde telif ettiği eserlerin ve düşünce mirasının etkileri daima aktüelliğini koruyan bir âlimdir. Onun düşünce mirası eşyanın hakikatini bütüncül bir şekilde ve şüpheden tamamen uzak olarak kavrayan istidlali bilginin temellük edilmesidir. İnsanın kemali için gerekli olan bu yetinin tahsil edilebilmesi hususunda Gazâlî’nin teklif ettiği metot, insanın kendi aklının kapasitesi ile düşünerek doğruya ulaşmasıdır. Bu düşünce Gazâlî’yi hayatı boyunca daima taklit bağından azade kılmıştır. Hiçbir mezhebi taassupla takip etmeyen Gazâlî, İslam dünyasındaki neredeyse bütün fikir akımlarını etkilemiştir. Gazâlî’nin farklı düşünceleri özgürce tartışması, içinde yetiştiği siyasi ve kültürel mirası zaman zaman tenkit etmesi, muhalifleri tarafından eleştirilere maruz kalmasına sebebiyet verdiği gibi diğer yandan farklı dinî ve felsefi akımların fikirlerini sahiplenebilecek özgür bir tutum sergilemesi, Sünnî akımın dışındaki İslam fırkaları tarafından da sahiplenilmeye çalışılmasına sebep olmuştur.
Mahkeme Kararı ile Boşanmanın Dinî Nikâha Etkisinin Değerlendirilmesi
Authors: SALİ DUMAN Vildan
Published: July 2023

Evlenmesine engel bulunmayan kadın ve erkek arasında, dînen ve hukûken belirlenmiş şartlara uygun olarak kurulan evlilik birliği, nikâh olarak tanımlanan evlilik akdi ile eşlerin meşrû bir şekilde hayatlarını birleştirmelerine olanak vermektedir. Bu çalışmada İslâm hukukunda nikâhın tanımı, şartları ve mahiyeti üzerinde durularak, 4721 sayılı Türk Medenî Kanunu’na uygun olarak kıyılan resmî nikâhla mukayesesi yapılmıştır. Resmî nikâhın dinî nikâh yerine geçeceği üzerine olan genel kabulün ardından, mahkeme önünde gerçekleşen boşanmanın, dinî nikâh üzerindeki etkisi üzerinde ittifak sağlanmadığı için bu bağlamdaki görüş ayrılıklarına yer verilmiştir. Ancak bu konunun Temel İslâm Bilimleri alanında gereği kadar ele alınmadığı , daha çok sosyal medya aracılığıyla fetva verme yoluna gidildiği, bu açıklamaların da çoğunlukla mesnetsiz olduğu, kişisel veya cemaat odaklı yapıldığı görülmüştür. Bahsi geçen konular bağlamında çalışmada, modern hukukta mahkeme kararı ile boşanmanın dinî nikah üzerindeki etkileri ele alınmıştır.
Kâbe’nin İçinde ve Üzerinde Namaz Kılma Meselesi
Authors: KARABACAK Mustafa
Published: July 2023

Kâbe, yeryüzünde kurulan ilk mâbeddir. Kâbe aynı zamanda namaz için kıble; hac için ise etrafında tavâfın yapıldığı mekândır. Kıblenin namazda olduğu gibi hac ve umrede tavâfın merkezinde olması Kâbe’nin içine girilip orada namaz kılınması Müslümanlarda orayı ziyaret ve ibadet etme isteği oluşturmuştur. Bir başka etken de Kâbe’nin namaz için merkez olması ve içinde kılınacak namazdan elde edilecek sevabın fazla olacağı inancıdır. Bu makalede Hz. Peygamber’in Kâbe’nin içine girip girmediği şayet girdi ise ne zaman girdiği ve içeride namaz kılıp kılmadığı ile ilgili rivayetler araştırmaya dâhil edilmiştir. Makalede araştırılacak bir başka konu ise bütün yeryüzü Muhammed Ümmetine mescid kılınmasına rağmen bazı rivayetlerde namaz kılmanın yasaklandığı yerlerden bahsedilmektedir. Namaz kılmanın yasak olduğu yedi yerden birinin de Kâbe’nin üzeri olduğu belirtilmiştir. Çalışmada değerlendirilecek bir başka konu da Kâbe’nin üzerinde namaz kılmayı yasaklayan rivayetlerdir. Söz konusu rivayetler hadis tekniği bakımından değerlendirilecektir.
Son Dönem Mevlevî Müntesiplerinden Mehmed Eşref ve Manzumelerinde Mevlânâ ve Mevlevîlik
Authors: ÜNAL Mehmet
Published: July 2023

Mevlâna ve onun fikir yapısı üzerine inşa edilen Mevlevilik, Türk tasavvuf ve kültür hayatında derin etkiler bırakmıştır. Yüzyıllarca kültür ve sanat çevrelerinde oldukça geniş bir çevre meydana getiren Mevleviler, üstatları Mevlâna’nın büyük bir şair oluşu sebebiyle şiire dolayısıyla şairliğe ayrı bir önem vermişlerdir. Bu durum edebiyatımızda bilhassa klasik şairlerin rağbet ettikleri tarikatların başına Mevleviliği yerleştirmiştir. Mevlevi şairlerin sayısı 16. yüzyıldan itibaren kayda değer bir artış göstermiştir. Bundan dolayı klasik edebiyatımızda en çok tarikata üye olan şair sayısı da Mevlevî tarikatı olmuştur. 20. yüzyılın başlarında Klasik edebiyatın son numunelerini ortaya koyan Mehmed Eşref de bu dergâha bağlanmıştır.

Okunmamış, ulaşılamamış her kitap, her bilgi, keşfedilmemiş bir kıta gibidir. Sahip olduğumuz değerleri daha iyi anlayabilmek, anlamlandırabilmek için bu değerlerin arkasında yatan dinamikleri bulmamız gerekmektedir. Klasik şiirin varlığını ortaya koymak da bu şiir çerçevesi içinde yetişen şairlerin eserlerini gün yüzüne çıkarmakla sağlanacaktır.

Bu çalışmada, bugüne dek yapılan Mevlevi edebiyatı araştırmalarında adı fazla anılmayan, hayatı hakkında yeni bilgilerin ışığında tekrar gözden geçirilmesi elzem olmuştur. Gençlik yıllarından sonra kendini Mevlevîliğe adayan ve Galata Mevlevihane’sinde çilesini tamamlayan bir Mevlevi’nin hayatı, eserleri, Mevlânâ ve Mevlevîlikle ilgili görüşleri ortaya konularak Mevlevî edebiyatının hangi mazmunları üzerinde durduğu gibi konuları örneklerle açıklanmaya çalışılacaktır.
Ebû Tâlib el-Mekkî’nin (386/996) Kûtu’l-Kulûb Adlı Eseri Özelinde Mürsel Hadis Yaklaşımı
Authors: TURAN Mehmet
Published: July 2023

Ebû Tâlib el-Mekkî’nin (386/996) tasavvufa dair kaleme aldığı eserlerden biri olan Kûtu’l-Kulûb’ta birçok hadis yer almaktadır. Tasavvuf ve ahlaka dair kaleme alınan eserler arasında nispeten uydurma hadis sayısının bu eserde daha az olduğu belirtilmektedir. Sûfîlerin hadisle ilgili tutumları incelendiğinde hadisçilerle aralarında önemli farklılıkların olduğu görülmektedir. Zira sûfîlerin, hadisin kabul veya reddinde hadis usûlü kriterlerini göz önünde bulundurmadıkları bilinmektedir. Bu nedenle de tasavvufla ilgili kaleme alınan eserlerde çok sayıda zayıf ve uydurma rivayetlere rastlamak mümkündür. Zira hadisçilerin sıhhat tespitinde göz önünde bulundurdukları en önemli unsur seneddir. Hâlbuki sûfîlerin, eserlerinde çoğu zaman yalnızca hadisin metnini zikretmekle yetindikleri görülmekte, hadisin senedine fazla ehemmiyet göstermedikleri bilinmektedir. Vakıf olabildiğimiz kadarıyla tasavvuf erbabı arasında mürsel hadisle ilgili özel bir görüş bildiren tek kişi, tasavvufî kimliğiyle ön plana çıkan Ebû Tâlib el-Mekkî’dir. Bu çalışmamızda, söz konusu eserde Ebû Tâlib el-Mekkî’nin mürsel hadisle ile ilgili aktardığı hususlar değerlendirilmeye tabi tutulmuş ve böylelikle Kûtu’l-Kulûb adlı eser özelinden sûfilerin mürsel hadis yaklaşımı tesbit edilmiştir.
Educación superior, modalidad hibrida en tiempos de pospandemia: Una revisión sistemática
Authors: Iparraguirre Contreras Jesús Ronald , Salazar Velásquez Inmer Alfredo , Luis Gómez Neidi Fabiola , Ríos Vera Patricia Jannet
Published: July 2023

En la actualidad, modalidades novedosas como la enseñanza híbrida representan herramientas importantes para garantizar la continuidad de las actividades académicas dentro de la educación superior. La presente revisión sistemática buscó analizar el impacto de la pandemia por COVID-19 sobre la educación superior, y el rol de la educación híbrida superior como una alternativa de solución para las actividades académicas en tiempos de nueva normalidad. Para ello, esta búsqueda se centró en recopilar información reciente sobre trabajos que estudiaran los cambios generados en el ámbito educativo propiciados por el COVID-19, con miras a una época de pospandemia. Los resultados dejaron en evidencia el reto que supuso lidiar con la pandemia dentro del ámbito educativo, así como la evolución que este campo ha sufrido en los últimos años. Aunque la educación híbrida representa una alternativa novedosa para ejercer las actividades educativas dentro de la nueva normalidad, todavía debe pasar por su respectivo proceso de mejora, del mismo modo en que ocurrió con la educación a distancia en su momento.
Conocimiento técnico pedagógico del contenido (TPACK) en Iberoamérica: Una revisión bibliográfica
Authors: Paidicán Soto Miguel , Arredondo Herrera Pamela Alejandra
Published: July 2023

Este artículo presenta los resultados de una revisión de literatura cuyo objetivo fue examinar la producción científica relacionada con el modelo TPACK en el contexto iberoamericano. Los 22 artículos se seleccionaron de las bases de datos Scopus, WoS, ERIC, SciELO, Dialnet y Redalyc. La búsqueda consideró el período desde el inicio del modelo, en 2006, hasta noviembre de 2022. Se tomaron en cuenta únicamente artículos con acceso abierto a su texto completo, relativos a las ciencias sociales y referentes a una investigación desarrollada en países de Iberoamérica. Se concluyó que existe solo un 3,73 % de publicaciones del modelo TPACK en contextos iberoamericanos, publicados entre 2014 y 2022. Además, el 81,81 % de las investigaciones se centró en los docentes, y los estudios con características de autoinforme de conocimiento fueron los más representativos, con un 55,55 %. Se recomienda desarrollar investigaciones que aborden el modelo TPACK en distintos contextos, así como programas multidisciplinarios que incluyan a todos los integrantes de la escuela.
Feirinha de plantas medicinais: extensão universitária para utilização adequada de fitomedicamentos caseiros
Authors: Malosso Milena Gaion , Alves Akyla Anara Frota Lima , Santos Ivan Monteiro dos
Published: July 2023

O presente trabalho ensinou conteúdos transversais de Ciências e Biologia para alunos dos Ensinos Fundamental e Médio por meio de diversas versões da ação de extensão universitária “Feirinha de Plantas Medicinais do Instituto de Saúde e Biotecnologia: a cura proveniente da biodiversidade vegetal”, que foram realizadas de forma interativa e que, por ser um tema atual, despertou a atenção da população de Coari/AM, que utiliza cotidianamente estas plantas. O objetivo principal deste trabalho foi sedimentar nas pessoas a noção do uso adequado das plantas medicinais, principalmente no concernente à identificação correta da espécie, preparo e armazenamento adequado de chás, emplastros, garrafadas, entre outros, além da dosagem e administração exatas destes preparados medicinais populares. Os objetivos secundários foram efetuar a conscientização ambiental no concernente à conservação destas plantas no meio ambiente e estimular o plantio de hortas medicinais nas residências dos munícipes coariense. A metodologia foi a realizada como descrito a seguir. Os universitários extensionistas pesquisaram sobre os temas acima descritos em livros, revistas científicas, farmacopeias e sites e, em seguida, elaboraram um folder com estas informações, que foram distribuídos durante a execução das diversas versões das feiras. Nos locais onde estas ocorriam, haviam vasos contendo as plantas para observação e reconhecimento sensorial, além de chás, garrafadas e outros medicamentos populares devidamente preparados para que a população tivesse acesso a estes itens. Os resultados proporcionaram o conhecimento adequado a respeito deste tema à população-alvo, bem como estimulou a conservação do meio ambiente e de acessos de diversas espécies medicinais ex situ em hortas caseiras, além da melhoria da qualidade de vida desta população coariense, que aprendeu a utilizar o conhecimento adquirido para produzir corretamente medicamentos caseiros para venda.
HeliCat Canada’s Wildlife Observations Program: Trends and Findings 2012-2022
Authors: Wilson Steven
Published: July 2023

HeliCat Canada members operating in mountain caribou range have been collecting and reporting wildlife sightings data since 2010, resulting in more than 3,750 spatially referenced sightings of animals and tracks by the end of the 2022 operating season. Mountain caribou, mountain goats, and wolverine have been the most commonly recorded species, with caribou observations generally declining over time, mountain goat sightings showing no trend, and observations of wolverines and their tracks increasing. No reaction and Unconcerned are the most common responses of caribou and mountain goats to encounters with helicopters or skiers. Behavioural responses are generally stronger at shorter encounter distances, but responses remain variable, with some animals still showing No reaction or an Unconcerned response to close encounters. Recorded responses to skiers tend to be stronger than to helicopters, particularly among caribou. The number and proportion of Alarmed or Very alarmed responses to encounters was higher in early years of monitoring but has been stable since about 2014. Evidence suggesting that HeliCat activities are causing population declines of mountain caribou or mountain goats is lacking. Opportunities to further reduce risk include: improved habitat mapping, expanded monitoring and reporting, telemetry data sharing, and passive detection of wildlife. However, the benefits of all of these approaches are also currently associated with a variety of limitations.
Lipid Metabolism in Parasitoids and their Parasitized Hosts
Authors: Scheifler Mathilde , Wilhelm Léonore , Visser Bertanne
Published: July 2023

Parasitoids have an exceptional lifestyle where development is spent on or in a single host insect, but the adults are free-living. Unlike parasites, parasitoids always kill their host. How parasitoids use such a limiting resource, particularly lipids, is important for their chances to survive and reproduce. Lipid metabolism in parasitoids has been of interest to researchers already since the 60s and continues to fascinate ecologists, evolutionists, physiologists, and entomologists alike. One reason is that the majority of parasitoids do not accumulate triacylglycerols as adults. Early research revealed that some parasitoid larvae mimic the fatty acid composition of their host, which may result from a lack of de novo triacylglycerol synthesis. More recent work has focused on the evolution of lack of adult triacylglycerol accumulation and consequences for life history traits. In part 2 of this chapter we discuss research efforts on lipid metabolism in parasitoids from the 60s onwards. Parasitoids are master manipulators of their host’s physiology, including lipid metabolism. Parasitoids have indeed evolved a range of mechanisms to affect the release, synthesis, transport, and take-up of lipids from their host. We detail the effects of parasitism on host physiology in part 3 of this chapter.
Mielitis aguda como manifestación de infección por sars-cov-2
Authors: Pájaro Nehomar , Hernández-Beltrán Natalia , Flórez Mónica , Rico-Fontalvo Jorge , Daza-Arnedo Rodrigo , Leal-Martínez Víctor , Sánchez-Álvarez Christian , Bello-Espinosa Ariel , Raad-Sarabia Maria
Published: July 2023

Introducción: la infección generada por el nuevo coronavirus SARS-CoV-2 ha mostrado un aumento creciente en los últimos meses, presentando manifestaciones clínicas variadas desde síntomas leves hasta afectación pulmonar grave. Además, se han descrito formas clínicas atípicas, en las que predominan los síntomas extrapulmonares; entre ellas, se han notificado casos de manifestaciones neurológicas concurrentes. A partir de la identificación de coronavirus en el sistema nervioso central en el brote de SARS-CoV de 2020, se ha planteado un posible neurotropismo del SARS-CoV-2. En la literatura mundial se han descrito pocos pacientes con encefalitis aguda, eventos cerebrovasculares isquémicos y afectación de la médula espinal asociados al SARS-CoV-2.
Caso clínico: varón de 57 años, con antecedentes de hipertensión controlada, acude al servicio de urgencias con ocho días de tos no productiva, asociada a un aumento subjetivo de la temperatura corporal. La exploración física al ingreso reveló taquipnea, fiebre de 38 °C, tensión arterial y frecuencia cardiaca normales; se realiza una radiografía de tórax que muestra neumonía grave, posteriormente evolucionó a insuficiencia ventilatoria que requirió manejo en unidad de cuidados intensivos para soporte con ventilación mecánica no invasiva. Infección por SARS-CoV confirmada con RT-PCR.
Conclusión: en este reporte presentamos un paciente con mielitis transversal concurrente a COVID-19, revisamos la literatura y discutimos los hallazgos clínicos e  imagen dados por la enfermedad.
Síndrome de West: reporte de caso y aspectos moleculares del tratamiento
Authors: Muñoz Nelson , Patiño Oscar , Aponte Alvaro , Barrera Mileidi , Reyes Melissa , Moneriz Carlos
Published: July 2023

Introducción: el síndrome de West es una encefalopatía epiléptica grave que se presenta generalmente en el primer año de vida. Este síndrome se caracteriza por la tríada electroclínica de espasmos en salvas, patrón electroencefalográfico de hipsarritmia y retraso psicomotor, aunque este último no es indispensable para su diagnóstico. Se conoce poco sobre su fisiopatología y manifestación clínica, por lo que sería pertinente difundirlos a la comunidad para atender estos casos de manera oportuna.
Caso clínico: se presenta el caso de un lactante de 7 meses de edad, producto de embarazo gemelar monocorial biamniótico y antecedentes de síndrome de transfusión feto fetal. El paciente consulta por manifestaciones clínicas consistentes en movimientos espasmódicos de miembros superiores, salvas conformadas en promedio de 10 espasmos de aproximadamente 2 segundos de duración, la madre refiere que el niño convulsiona desde los 4 meses. Luego de ser valorado por el servicio de neurología pediátrica y de acuerdo a los resultados de imagenología se concluye que el paciente presenta tríada sintomática clásica del síndrome de West. El niño es tratado con ácido valproico y vigabatrina, presentando una mejoría clínica que se evidenció en disminución del número de crisis de manera significativa. 
Conclusión: el síndrome de West debe ser objeto de conocimiento por parte de los médicos para realizar un diagnóstico temprano y definir el tratamiento adecuado y oportuno.
Quiste renal gigante: un reporte de caso
Authors: Sanchez Martinez Diego Andres , Castro-Mendoza William , Vanegas-Ortiz Oscar , Poveda-Ortiz Oscar , Camelo-Piloneta Yaneth , Campos-Verbel Angelica
Published: July 2023

Introducción: los quistes renales representan un hallazgo frecuente en imagenología diagnóstica. Entre los diferentes  tipos de quistes se encuentra el quiste renal simple; generalmente  asintomático y con tamaños menores de 10 cms, pero cuando sobrepasa estos límites ocasiona la aparición de síntomas y se conoce como quiste renal gigante.
Caso clínico: paciente joven que ingresa por dolor abdominal crónico refractario a manejo con analgésicos. A la inspección abdominal se encuentra distensión y palpación de una masa de consistencia blanda, de superficie regular, instalada en  hemiabdomen derecho y flanco izquierdo. En la TAC abdominal contrastada se encuentra una masa heterogénea dependiente de riñón derecho sin compromiso de órganos adyacentes. Se realiza biopsia incisional, la cual resulta negativa para la malignidad. Se realiza laparotomía exploratoria y se identifica un quiste renal de gran tamaño ubicado en el polo inferior del riñón derecho en estrecha relación con estructuras cercanas y desplazando el intestino hacia el hemiabdomen izquierdo. Se realiza la resección de la lesión preservando el 70% del riñón.

Conclusión: es poco frecuente que un quiste renal crezca hasta rebasar la línea media abdominal y genere compactación de órganos contiguos, la poca información de este tipo de casos en la literatura médica se debe a su baja incidencia y la limitación de métodos para evaluar este órgano en el examen físico, entre otros factores.
WIND ENERGY POTENTIAL IN YOBE, NORTHEASTERN NIGERIA: AN AIDED TECHNIQUE THROUGH GEOGRAPHIC INFORMATION SYSTEM AND REMOTE SENSING
Authors: Babagana Saleh Mustapha , Emeka Agada Livinus
Published: July 2023

The role of wind energy and other renewable energy sources in combating climate change cannot be overemphasized. Many countries including Nigeria have so far implemented policy measures to promote renewable energy. Moreover, the most important step to be taken in order to effectively harness renewable energy is to estimate their potentials in terms of viability and sustainability. This study was focused on evaluate the wind energy potential zones in Yobe State, northeast Nigeria, using integrated multiple criteria decision-making analysis (MCDA), Geographical Information System and Remote Sensing (GIS-RS), and Analytic Hierarchy Process (AHP) methods. Weibull distribution statistical method was applied to validate the GIS-RS based analysis. The study revealed a wind speed variation ranged from 1.48 to 7.15 m/s and an average annual wind power density of about 80 W/m2. About 90 % of study area has about 90 % wind power density of about 85 W/m2 and below while the remaining 10 % is covered by wind power density ranged between 85 and 616.89 W/m2. The results of the study showed that the area is viable for wind power generation and distribution. Furthermore, the wind energy resource will yield favorable economic gain for the study area. Thus the study concluded that Yobe is a suitable area for wind power generation both at medium scale generation, and standalone connection system.
PHYTOCHEMICAL CONSTITUENTS AND ANTIFUNGAL ACTIVITY OF ACALYPHA WILKESIANA LEAVES ON CANDIDA ALBICANS
Authors: Sulaiman Asmau Nna , James Adole Emmanuel
Published: July 2023

Acalypha wilkesiana, commonly called Jacob’s coat, is native to South Pacific Islands and belongs to the family Euphorbiaceae. This study was conducted to evaluate the phytochemical constituent and the antifungal effect of methanolic and aqueous extracts of Acalypha wilkesiana leaves on Candida albicans. The aqueous and methanolic extracts of Acalypha wilkesiana were investigated for their antifungal activity against Candida albicans using agar well diffusion method. A total of twenty (20) isolates were collected from Ahmadu Bello University Medical Centre, Samara, Zaria, of which all were confirmed using microscopy (wet mount), culture and Germ tube test to be Candida albicans. The plant extract was prepared using maceration method. The preliminary phytochemical screening of the extract showed the presence of alkaloids, cardiac glycosides, saponins, phenolic compounds, tannins, steroids, carbohydrates, flavonoids and terpenoids. The Minimum Inhibitory Concentration for both the aqueous and methanolic extracts were at 100 mg/mL and 75 mg/mL. The Minimum Fungicidal Concentration for both extracts were at 100 mg/mL. Acalypha wilkesiana studied here can be seen as a potential source of useful drugs. The result of this study therefore justifies the use of plant as the herbal medicine for the treatment of fungal infection caused by Candida albicans.
HEURISTIC GATEWAY PLACEMENT FOR MINIMAL TRANSMISSION POWER & COLLISION PROBABILITY IN AN INTERNET OF THINGS LOW POWER WIDE AREA NETWORK (HGPMTPIoT-LPWAN)
Authors: Rawayau Aminu Haruna , Amadi Muhammad Dikko , Kankara Mubarak Kabir , Yahaya Mahmud Muhammad , Bello Samaila
Published: July 2023

A variety of long-range (LoRa), low-power, and low bit-rate wireless network technologies have been made possible by the Internet of Things' (IoT) rapid growth. As a radio technology for the implementation of numerous Internet of Things applications, the LoRa low-power wide area network (LPWAN) has gained prominence. LoRa is frequently used in conjunction with the Long-Range Wide Area Network Media Access Control (LoRaWAN MAC) protocol and functions in the Industrial, Scientific, and Medical (ISM) bands, which are unlicensed. As a result of receiving a wide variety of different message sizes from diverse applications, LoRa networks experience scalability issues when the number of end nodes connected to one network is more than the shared number of channels. This results in collisions and packet loss. In this paper, heuristic gateway placement for minimal transmission power & collision probability in an internet of things low power wide area network (HGPMTPIOT-LPWAN) is proposed to increase network efficiency, and improve overall performance by measuring collision probability, which in turn can help to reduce the need for retransmissions and packet drop rate. The things network simulator is used to measure the collisions and packet drop rate. An improved performance for HGPMTPIOT as against the efficient graph-based gateway placement (EGBGP) for large-scale LoRaWAN deployments is achieved for packet drop rate by 6%. Likewise, the simulation results show improvements in terms of decreasing the collision probability for 20 to 60 nodes by 20%.
AN ENHANCED RESOURCE ALLOCATION SCHEME FOR LONG TERM EVOLUTION ADVANCED NETWORK
Authors: Yahaya Mahmud Muhammad , Surajo Yusuf , Rawayau Aminu Haruna
Published: July 2023

The emerging Long-Term Evolution Advanced (LTE-A) is an extended version of Long-Term Evolution (LTE) fourth-generation (4G) wireless broadband technologies that supports high speed transmission of multimedia applications, like video streaming, multimedia online game, Voice over IP (VoIP), browsing over the web etc. The Third Generation Partnership Project (3GPP) does not define a standard packet scheduling strategy in LTE-A. Therefore, it is expected for researchers and network service providers to design efficient schemes. This paper proposed an Enhanced Resource Allocation Scheme (E-RAS) that improves the packet scheduling strategy of LTE-A by addressing issues related to delay and fairness of users with both high and low channel conditions, for both Real Time (RT) and Non-Real Time (NRT) flows. The aim was achieved by using a fair spectrum allocation mechanism that consider the priority of RT flows of cell-centre users, without neglecting the throughput requirements of edge-centre users. Moreover, the proposed algorithm introduces an efficient traffic load balancing mechanism to efficiently regulate traffic load in LTE-A network. To evaluate the proposed scheme, simulation was conducted using the MATLAB programming with LTE-A system level simulator. The result obtained shows that the proposed scheme achieves better delay for RT and NRT traffics by 7% and 11% respectively as against the Resource Allocation Scheme to Optimize the Throughput (RASOT) scheme.
STATISTICAL ANALYSIS OF RADON CONCENTRATION IN BOREHOLE WATERS; CORRELATION TO GEOLOGICAL FORMATIONS KATSINA STATE, NORTH WESTERN NIGERIA
Authors: Abdulkadir M. , Garba N. N. , Rabiu N. , Abdallah C. A. C. , Saleh M. A. , Abdullahi I. M. , Saidu Aminu , Abdulkadir A.
Published: July 2023

Radon in borehole water serves as a source of natural radioactivity exposure through indoor air. Determination of naturally occurring radionuclides concentration in ground and surface waters is useful as a contribution to environmental health studies. In this research, statistical analysis of radon concentration in (borehole) water was conducted in Katsina state. The aim of this study is to analyse statistically the concentration of radon in borehole water in Katsina state and to establish a possible relationship between radon activity concentration in borehole water and underlying rock types. A total of 110 water samples were collected and analysed using Tri-carb 1000 Liquid Scintillation Counter (LSC) at the Centre for Energy Research and Training, Ahmadu Bello University. The overall average concentration of 222Rn was found to be 69 ± 3 Bql-1 with geological formations, G8 and G7 having the highest and lowest concentrations with values of 75 ± 10 Bql-1 and 57 ± 4 Bql-1 respectively, which are higher than the world average values of 10 Bql-1 set by WHO and 11.1 Bql-1 set by USEPA. The results showed that radon concentrations are clearly correlated to rock types with acidic intrusive rocks associated with values which sedimentary rocks are associated with lower concentrations.
CONSTRAINTS MILITATING AGAINST GOAT PRODUCTION IN ADAMAWA STATE
Authors: Yahya M. M. , Midau Alex
Published: July 2023

In the tropics, small ruminants have low productivity partly due to slow growth rate which had been attributed to disease, poor nutrition, managerial factors and non-genetic factors such as age and parity of dam, sex and type of birth. The study was carried out to investigate the constraints of goats in Adamawa state. The design of the experiment was based on supplements offered. The result obtained in the study showed that: gestation length was short in groups receiving maize bran and cotton seed cake but longer in the control group and significant differences (P<0.05) existed between the different groups. Twinning was recorded only in the groups receiving maize bran and cotton seed cake and no significant differences existed. The birth weight of the F1 kids showed significant (P<0.001) differences between the groups, the highest was recorded in the control group while the least was recorded in the group receiving maize bran due to incidence of twinning. This indicates that supplementation increases productivity.
BLOCKCHAIN-BASED ZERO KNOWLEDGE PROOF MODEL FOR SECURE DATA SHARING SCHEME IN A DISTRIBUTED VEHICULAR NETWORKS
Authors: Majigi Muhammad Umar Majigi , Idris Ismaila , Abdulhamid Shafii M. , Uduimoh Andrew Anogie
Published: July 2023

The possibility of implementing advanced applications, such as improved driving safety, has increased with the rapid development of vehicular telematics, and existing vehicular services have been enriched through data sharing and analysis between vehicles. This research uses smart contracts and consortium blockchain zero knowledge proof to secure data sharing and storage in vehicular networks. The results indicate that, for message sizes (m), both data_ experiments _2 and 1 produce ciphertext of the same size 157 bits, with the exception of 'gnfuv-temp-exp1-55d487b85b-5g2xh,' which generates ciphertext of 156 bits with the lowest decryption time of 26,865ms and a small decrease in encryption time between 28,620ms and 28,162ms.  the proposed model validation shows that the model performed better than the Advanced encryption standard in terms of ciphertext size, encryption time and decryption time in comparison and it satisfies the good and robust blockchain-based zero knowledge proof model for secure data sharing and storage for distributed VANET. The scheme achieves high levels of security while operating with reasonable efficiency, reliability and availability according to numerical results.
TOXIC METALS LEVELS IN AGROCHEMICALS SOLD IN SABON GARI MARKET, KANO, NORTHWESTERN NIGERIA
Authors: Abdullahi Ibrahim Lawal , Sani Ali , Yusuf Yusuf Adam
Published: July 2023

Heavy metals such as Cadmium (Cd), Nickel (Ni), lead (Pb), Zinc (Zn), and Copper (Cu) originate from various sources including agriculture. From agricultural sources, they comprise agrochemicals such as insecticides and pesticides. The study aimed at evaluating the levels of toxic metals in agrochemicals (pesticides) sold at Sabon Gari market, Kano. 42 brands of pesticides were obtained from the market. They were digested and then analyzed by Atomic Absorption Spectrophotometer for determination of Cd, Pb and Ni. Cd was found to be highest in LF (0.0833mg/l) and least in RCK (0.0015mg/l) while not detected in CBT, CPT, DDF, and PRF. Pb was found to be highest in FUP (2.995mg/l) and least in PRF (0.0434mg/l) while not detected in BF, CLV, CPF, CPT, DDF, GRF, LCH, LF, PK, and RV. Ni was only detected in DDF (0.305mg/l). Therefore, it is clear that the pesticides contain heavy metals slightly above the tolerable limits which could get into the soil subsequently accumulate overtime and pose serious threat to the plants and other living organisms.
EXPLORING THE USE OF GNSS DATA IN THE IDENTIFICATION OF ACTIVITY AREAS FOR CENSUS ENUMERATION EXERCISE
Authors: Guma E. P. , Babatunde Ibrahim , Bello A. E. , Haruna Akoji Augustine , Reuben Aremu , Onuvava Yakubu Mathew , Samuel Abraham Sunday
Published: July 2023

The Global Navigational satellite System (GNSS) is a satellite based positioning tool that uses signals from artificial satellites in the space to determine time, velocity and positions. The GNSS receiver has countless uses and these may include navigation, surveying and Mapping in general. The aim of this study is to determine, using the GNSS, areas with dense population and more so, areas of much activities for census planning exercise. The Hi-Target V30 GNSS receiver and its accessories were used for the study. The Hi-Target V30 Standalone Receiver’s Data were collected for 12 months interval observation. Observations were carried out for 1 hour each on ten (10) different stations and the GNSS raw data were downloaded and converted into RINEX data. A Post-Processing platform was used to process the result in ITRF 14 and WGS 84 datum. The differencing of results showed shifts in the directions to much denser populations areas. These shifts, after interpretations could assist enumerators in further decision making.  It is obvious that, the GNSS potentials are limitless as the aim of the research was achieved.
AMYLOLYTIC POTENTIAL OF Arthrobacter sp. AND Bacillus aerius FROM WASTE DUMP-SITES OF TWO BAKERIES LOCATED WITHIN KADUNA METROPOLIS, NIGERIA
Authors: Obafunmi Tonidunni Ibukunola , Bakori Garba Faiza , Lawal Yunus Sumayya
Published: July 2023

Bakery waste dumpsites are believed to harbour a variety of bacteria due to the presence of organic materials like flour, sugar, and other food residues. The conditions in these environments support the growth of bacteria with the ability to degrade starch into simple sugars because they produce amylases, an enzyme pivotal to the food and beverage production. As Amylases progressively gain relevance in several other starch-based processes, their availability becomes insufficient, and the need for amylases with unique and superior efficiency increases. The focus of this study was to isolate and characterize bacteria with amylase activity from the soil of bakery waste dumpsites to provide valuable insight into cheap sources of amylolytic bacteria and their potential biotechnological applications. The starch-agar medium was used to isolate and screen amylase-producing bacteria by streak plate method. Two isolates, A2 and A4, showing the most hydrolytic activities of 21 + 0.1 mm and 25 + 0.1 mm, respectively, were identified by their cultural and cellular morphologies, biochemical characteristics, 16S rRNA gene sequence, and nearest phylogenetic neighbour as Arthrobacter sp. and Bacillus aerius. Based on their culture and amylolytic temperatures, Arthrobacter sp. (37 0C) and Bacillus aerius (45 0C) tend to produce amylases that can be explored in low to moderate and moderate to torrid industrial processes, respectively.
THE EFFECT OF SOLAR RADIATION ON THE SIGNAL STRENGTH OF A.B.U. SAMARU RADIO STATION
Authors: Onuh E. , Aliyu M. , Jada M. , James I. U. , Reken R. M.
Published: July 2023

Solar activities including solar radiations affects not only the electron content of the ionosphere but also the various frequencies used in telecommunications. The alternating voltages of the frequency modulation (FM) in Ahamdu Bello University radio station was obtained during the period of three months from July to September 2019. The variation of all prominent peaks of the electron density begins during sunrise and sunset, where most of the peaks shows weak signal strength during the daytime i.e. at 16,000N/m3 compared to night time and morning time at 0.00N/m3 and 0.00N/m3 respectively. The results showed that this station have all day signal strength, while night time show variability in signal strength. This observation may be attributed to the solar activity in the atmosphere. We calculated the critical frequency and hence find the Maximum Usable Frequency (MUF) and conclude that solar radiation factor give the minimum significant effect to radio signals.
CARCASS CHARACTERISTICS, ORGAN PROPORTION, HAEMATOLOGY, SERUM CHEMISTRY AND DIGESTIBILITY OF BROILER CHICKENS FED UMUCASS 36 CASSAVA ROOT MEAL
Authors: Adedokun Olubukola O.
Published: July 2023

A week old 150 Arbor Acre strain of broilers fed UMUCASS 36 cassava root meal were used to evaluate the carcass characteristics, organ proportion, blood and serum chemistry and digestibility of the birds. The cassava was harvested, washed, peeled, chipped, oven dried and milled. The processed cassava root meal was used to formulate five diets, at 0, 25, 50, 75 and 100% levels designated D1, D2, D3, D4 and D5 respectively to replace maize. The birds were assigned in a Completely Randomized Design to five treatments with three replicates of ten birds per replicate. The carcass characteristics of broilers fed diet D2 was more superior and significantly (P>0.05) different from other broilers on the other diets.  The superiority reflected in the bled weight, plucked weight, dressed weight and dressing percentage with the following values: 2136.67g, 2056.67g, 1723.33g and 77.71% respectively. The same trend was seen the values of the cut parts. Broilers on diet D5 had the highest percentage weight in heart (0.81%), liver (3.81%), gizzard (3.31%) and kidney (1.29%) while broilers on diet D2 had the least percentage of heart weight (0.38%), liver (1.33%), gizzard (1.11%) and kidney (0.57%). The experimental diets had no deleterious effects on the haematology and the blood serum of the broilers. Broilers placed on diet D2 had the best digestibility coefficients in all the digestibility parameters when compared with broiler chickens fed other diets. From the ongoing, it can be concluded that broilers on diet D2 performed best therefore, diet D2 is recommended.
IN-VITRO NUTRITIONAL, PHYTOCHEMICAL, ANTIOXIDANT AND ANTI-INFLAMMATORY ANALYSES INDICATED DISPARITY IN Cola nitida L. and Garcinia kola Heckel USED IN NIGERIA
Authors: Apiamu Augustine , Orhonigbe I. , Evuen Uduenevwo F. , Kadiri Helen E. , Okoro Israel O. , Kpomah Enyohwo D.
Published: July 2023

The research affirmed that Cola nitida L. and Garcinia kola Heckel used in Nigeria are quite different medicinally and nutritionally. The proportions of all nutrients analyzed quantitatively (lipid, moisture, fibre, ash, and protein except carbohydrate) were greater in C. nitida than in G. kola Heckel (p<0.05). C. nitida has a lower energy density than G. kola Heckel (332.20 kcal/g vs 349.10 kcal/g sample) (p<0.05). Alkaloids, flavonoids, phenolics, and cardiac glycosides were all significantly greater in G. kola Heckel than C. nitida at p<0.05, in addition to saponin, tannin, and steroids. A 72-hour methanol extraction of kola nuts by cold maceration showed that C. nitida had significantly lower total phenolic, flavonoid, and tannin contents than G. kola Heckel (TPCs: 1815.38±125.90 µg GAE; TFCs: 385.80±37.24 µg QE; and TTCs: 2643.75±36.08 µg TAE/g sample). 2.2-diphenyl-2-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays showed that G. kola Heckel (IC50 = 133.70 ± 0.11 µg/mL) was more effective than C. nitida (IC50 = 226.70 ± 0.21 µg/mL) at the 0.05 level. Studies on anti-inflammation found similar effects for G. kola Heckel and C. nitida (antiproteinase activity IC50 = 162.90 and 223.60 µg/mL; albumin denaturation: IC50 = 155.10 and 347.20 µg/mL; and membrane stabilization: IC50 = 183.50 and 271.70 µg/mL). Thus, it is proposed here that G. kola Heckel, in comparison to C. nitida, may be an acceptable source of energy, an antioxidant, and an anti-inflammatory agent in the nutraceutical and pharmaceutical sectors for the benefit of humans.
THE GROWTH FACTOR AND BULK HYGROSCOPICITY OF ATMOSPHERIC SOOT OF URBAN AEROSOLS
Authors: Akpootu Davidson Odafe , Aruna S. , Bello G. , Aminu Z. , Isah A. K. , Umar M. , Badmus T. O. , Alaiyemola S. R. , Abdulsalam M. K. , Meseke N. O. , Abdullahi Z.
Published: July 2023

Aerosols within urban atmosphere can be composed of water-soluble aerosols from industrial emissions, insoluble and soot from biomass and bio-fuel emissions respectively. In this study, simulation was carried out using Optical Properties of Aerosols and Clouds (OPAC) to model the hygroscopic growth factor and bulk hygroscopicity of Soot at spectral range of 0.25 to 1.00 mm for eight different relative humidities. The results in this study revealed that the aerosol hygroscopic growth factor increases with relative humidity (RH) while the bulk hygroscopicity decreases with increase in RH from 50-99% RHs. The aerosol hygroscopic growth factor increases with increase in RH while the bulk hygroscopicity decreases with increase in RH for the number, volume and mass ratios. The aerosol growth factor revealed that the mixture is barely hygroscopic, less hygroscopic and more hygroscopic from 50 – 80% RH, 90 – 95% RH and 98 – 99% RH respectively for the number mix ratio. The aerosol growth factor revealed that the mixture is less hygroscopic, more hygroscopic and most hygroscopic from 50 – 80% RH, 90 – 95% RH and 98 – 99% RH respectively for the volume and mass mix ratios. The bulk hygroscopicity ranges between 0.02007 to 0.09456 for the number mix ratio from model 1 to model 3, the bulk hygroscopicity ranges between 0.13596 to 0.32956 for the volume mix ratio from model 1 to model 3 while the bulk hygroscopicity ranges between 0.12831 to 0.29925 for the mass mix ratio from model 1 to model 3.
ANALYSIS OF SINGLE-VEHICLE AND MULTIPLE-VEHICLE CRASHES ALONG THE HAWAN KIBO CRASH CORRIDOR, PLATEAU STATE, NIGERIA
Authors: Bombom L. S. , Jambol Antele R. , Bot Emmanuel T. , Ibimode Akinwumi A. , Dabis Nandi D.
Published: July 2023

In-depth analysis of the characteristics of road traffic crashes at blackspots or hotspot locations is, generally, insufficient in Nigeria. This is despite the fact that blackspots represent recognized locations with road safety deficiencies and mitigation of crashes at such locations produce multiple benefits. This paper examines characteristics of road traffic crashes along Hawan Kibo route, one of the most recognized crash corridors in Nigeria, with particular emphasis on single-vehicle (SV) and multiple-vehicle (MV) crashes. The data shows that between 2015 and 2019, 355 crashes were recorded (SV: 219; MV: 136), with 1288 persons sustaining injuries (SV: 652; MV: 636) and 121 fatalities (SV: 46; MV: 75). The most important causes of crashes and casualties for SV crashes were brake failure, speed violation, and fatigue; while wrongful overtaking, brake failure and speed violations were the most prominent for MV crashes. Time of day for crashes was not significantly different between SV and MV crashes but number of persons injured per crash was significantly different between them. Though MV crashes were less in number, they appeared to be more severe. There was no statistically significant difference between the fatality rates per crash for SV and MV crashes even though SV fatality rates were significantly less than those for MV crashes. In the light of the fact that the most prominent causes of crashes and casualties are associated with poor human judgment and attitude, the study suggests that more creative and concerted efforts should be made to educate drivers and passengers on road...
MANAGEMENT OF LIQUID MEDICAL WASTES IN SELECTED HOSPITALS IN YOLA, ADAMAWA STATE, NIGERIA
Authors: Oladapo Bamidele S. , Qadeer M. A , Bello B. V.
Published: July 2023

Liquid medical waste management has been a critical challenge in healthcare facilities and poses a severe threat to public health, particularly in developing countries. As such, this study was conducted to assess the prevailing practices of managing Liquid Medical Wastes in selected Hospitals in Yola, Nigeria, to improve on the existing practices and mitigate the dangers of mishandling liquid medical waste. One hundred and eight structured questionnaires were administered to healthcare workers and waste contract staff. Visits were made to various locations to observe the entire process of liquid medical waste (LMW) generation and its ultimate disposal. The data were subjected to a t-test using SPSS version 23.0. The study revealed that the major types of LMW reported by respondents were infectious wastes, with Hospital One (H1) reporting 69% and Hospital Two (H2) reporting 78%. The least common types of LMW generated were pharmaceutical waste, with H1 at 12% and H2 at 10%. The different types of LMW generated between H1 and H2 did not exhibit any significant distinction (P > 0.05). The various techniques used in managing LMW at the selected hospitals include segregation, temporary storage, treatment, and on-site transportation. There was a significant difference between H1 and H2 in terms of the techniques used in managing LMW (P = < 0.05). The study revealed that H2 doesn’t treat their LMW before disposal as compared to H1, where LMW from the laboratories was autoclaved before being taken to the incinerator on-site for further treatment.
GEOSPATIAL ESTIMATION OF ROOFTOP SOLAR PHOTOVOLTAIC POTENTIAL IN CALABAR MUNICIPAL, CROSS RIVER STATE, NIGERIA
Authors: Ugbong Paul U. , Isma’il Muhammad , Usman A. K.
Published: July 2023

The availability of significant solar resource and the continuous hike in economic activities as well as an increased population in Calabar Municipal holds a substantial solar photovoltaic (PV) potential of rooftops in the city. This is as a result of the consequent increase in urban households. This Research work is aimed at estimating solar PV potential of rooftops in the study area using geospatial techniques. It adopted Geospatial techniques’ approach in identifying rooftops available for PV deployment in Calabar Municipal. High resolution satellite imagery gotten from google Earth, Digital surface model (DSM)/ Digital elevation model (DEM) and ArcGIS 10.8 were employed in this study. In other to estimate the PV potential of rooftops, criteria such as Solar Radiation/ Irradiance, Total Roof Area (Building footprints), Slope (rooftop inclination angle) and Aspect (Buildings’ orientation) were analyzed. The results gotten from these analyses were analyzed further and rooftops that fall below the acceptable range of the aforementioned criteria were excluded from the analysis. Results showed that the total roof area in Calabar Municipal was estimated as 5,965,916.44 m2 (5.97 km2) while the available roof area suitable for PV installations was evaluated as 5,964,966.42 m2 (5.96 km2). The findings of this research indicates that Calabar Municipal has good solar radiation as well as enough suitable rooftop area hence a very good place for solar PV deployments. Also, this study is accurate enough to be used as a guide in decision making on power (electricity) generation in Calabar Municipal of Cross River State.