bluuebunny/crossref_metadata_2025 huggingface dataset:
A retrospective study of ludwig’s angina at the maxillofacial unit of the komfo anokye teaching hospital-kumasi, Ghana.
Authors: M Yelibora , S Obiri-Yeboah , R.N.L Larmie , J.T Olesu , A Oti Acheampong , P Donkor
Published: May 2024

Introduction: Ludwig’s angina is a potentially life-threatening diffuse cellulitis involving the sublingual, submental, and submandibular spaces bilaterally and causing progressive airway obstruction. The microbiology of Ludwig’s angina is polymicrobial, but commonly isolated is Streptococcal spp. Aim: The current study aimed to retrospectively evaluate the prevalence of Ludwig’s angina at the Maxillofacial Unit of the Komfo Anokye Teaching Hospital, Ghana. Materials & Methods: A 2-year retrospective analysis of patient records from January 2012 to December 2013 was undertaken. The studied variables included the aetiology, symptoms, signs, and treatment modalities. Descriptive analysis was done using charts, frequency, and tables.Results: The total number of admissions for maxillofacial space infections was 224, comprising 128 males and 96 females. The number of patients with Ludwig’s angina was 56, giving a prevalence rate of 25.0%. The commonest source of infection was of odontogenic origin (94.6%), and the teeth most involved were the first lower molars (37.5%). The predominant microorganisms isolated were E.coli, Klebsiella, and Pseudomonas spp. The majority of patients (94%) were managed medically and surgically with incision, drainage, and insertion of drains as well as extraction of affected teeth. The commonest antibiotic combination was amoxicillin/clavulanate potassium with metronidazole (65.5%), followed by crystalline penicillin with metronidazole (12.7%). Conclusion: The commonest cause of Ludwig’s angina was odontogenic, and the microorganisms cultured were E. coli, Klebsiella, and Pseudomonas. The commonest antibiotic combination used for treatment was amoxicillin/clavulanate potassium with metronidazole.
Self-reported emotional intelligence levels by dentists in the Nigerian residency programme.
Authors: O.F Ikusika , T.E Adeyemi , Y. I Adeyemo , A. A Akinlade , A.A Efunkoya
Published: May 2024

Introduction: Emotional intelligence (EI) aids in the management of emotions. It is presumed to be important in maintaining well-being and organizational structure in stressful environments like the dental residency program. This study assessed self-reported emotional intelligence skills among consenting Nigerian dentists in the residency training program.Materials and Methods: Eligible respondents were surveyed electronically to determine levels and patterns of EI as defined by Goleman, using the EI Inventory (www.ysmsolutions.co.uk). Variables were described as frequencies and percentages. Means were compared with t-test or ANOVA. Correlations were performed as appropriate. The level of statistical significance was set at p≤0.05. Results: Ninety residents with a mean age of 35.6 ± 4.8 years and 62(68.9%) males and 28(31.1%) females participated in the study. There were 57(63.3%) junior residents and 33(36.7%) senior residents who had spent between 1 and 12 years in the program.The mean overall EI score was 187.4±21.4. EI scores were highest for Self-Awareness (40.7±5.1) and lowest for Managing Emotions (33.3±5.7). Males outperformed females in social skills (p<0.001). Conclusion: Participants had high EI scores in self-awareness and low scores for managing emotions. Overall, EI scores were good.
Orthokeratinized odontogenic cyst: a case report
Authors: I Naziru , P.B Frimpong , C.I.O Ani , Acheampong A Oti
Published: May 2024

Orthokeratinized odontogenic cysts (OOC) are rare developmental odontogenic cysts characterized by an ortho-keratinized stratified squamous epithelial lining. They were originally believed to be part of the spectrum of Odontogenic Keratocyst but are now considered a distinct entity.They comprise approximately 1% of all odontogenic cysts and about 10% of cases previously coded as odontogenic keratocysts. They usually occur as a single radiolucent lesion.In this paper, we present a case of OOC and compare them to previous case reports and a literature review.
An Analysis of Judicial Intervention and Assistance for Arbitral Proceedings: A Look at the Courts of Ghana
Authors: Awuni Peter Apuko , Agyapong Nana Ama
Published: May 2024

Without the support of national courts, arbitral tribunals are unable to function properly, particularly in situations involving the  enforcement of arbitration agreements, procedural orders, and arbitral awards, among other things. The arbitral tribunal cannot compel  a party to carry out a task, or obligation, or fulfil an obligation. The court has the authority to order a party to carry out an order and can  also impose harsh consequences for contempt of court, such as fines, imprisonment, or other punishments. Unless the issue(s) before  the court are non-arbitrable pursuant to section 1 of the Alternative Disputes Resolution Act, 2010. The courts of Ghana have the capacity  and jurisdiction to enforce applications by a party for arbitration. The New York Convention, which also grants national courts of  contracting states authority to hear cases involving the enforcement of arbitration agreements, has been ratified and domesticated by  Act 798 under the First Schedule. The paper argues that even though national courts are permitted by statutory laws and international conventions to assist in arbitral proceedings, courts must exercise some restraint and must not be in a hurry to inherit jurisdiction and  interfere with disputes before arbitration, since arbitration proceedings are considered alternative methods of resolution of disputes to  litigation, and unless expressly provided for and in obvious instances devoid of any controversy. A purported judicial assistance should  not be used to whittle away the function of arbitral tribunals and render nugatory the benefits that are to be derived from these  proceedings as it would defeat the concept of Alternative Dispute Resolution (ADR). The paper concludes by suggesting that unnecessary  interventions by some national courts including Ghana appear to be interfering with party autonomy as well as the competence of the  arbitral tribunal, hence, hindering the purpose for which the Alternative Dispute Resolution Act 2010 was enacted and other supporting  legislations and conventions as an alternative to litigation which is non-voluntary, expensive, acrimonious and complicated.
Africa in the Eye of Contemporary African Child: A Psychoanalytical Reading of Noviolet Bulawayo’s We Need New Names
Authors: Anyanwu Patricia Ngozi
Published: May 2024

Even with the immense global innovations in technology and education, millions of children in most African nations are out of school.  They are denied education due to greedy political leadership and irresponsible parenting in their respective nations. Zimbabwe is one of  such African nations. The unfortunate predicaments of children in this nation many years after decolonization are dramatized in Noviolet  Bulawayo’s We Need New Names. In this narrative, Bulawayo engages the technical elements of voice, action and settings to expose the  vulnerability of contemporary Zimbabwean children. Through Darling, who is the child protagonistnarrator, we glimpse into the  unfortunate realities of the contemporary Zimbabwean children: they are out of school, neglected, and starved, physically, emotionally  and sexually abused amongst many other atrocities against them. Using the qualitative research method, as well as Sigmund Freud’s  Psychoanalytical strand of Child Development Theoretical paradigm, this study has not only examined the various aspects of physical and  psychological abuses of the contemporary African child, but has also discovered that these supposed future leaders can only access  qualitative education, decent shelter, food and modern technology through migration to other developed climes, particularly the United States of America and Dubai, a journey from which they are not likely to return soon. This unfortunate development portends a bleak  future for most of these nations and the continent at large.
Exploring the Perception and Attitude of Engineering Students towards Communication Skills Course
Authors: Owusu-Ansah Victoria , Anane Caroline Aba
Published: May 2024

This study explores the perception and attitude of engineering students in Accra Technical University towards Communication Skills as a  course. Attitude towards Communication Skills is an important concept because it plays a key role in language learning, as well as career  performance. However, with the ever-growing age of globalisation, international and cross-cultural communication, the need for  communication skills has increased, especially among engineers who feed on ideas from local and international collaborations. It has  become imperative for engineering graduates to acquire a range of skills to maintain relevance with the global setting of the new era.  Communication skills is one of the vital skills recognised by academia and industry alike. This quantitative study examines students’  perception and attitude towards communication skills as a course, and bring to bear some reasons for the perceived poor performance  in the course. The research instruments used to collect data were questionnaires and observation. The study observed that most of the students in the first year of their study had negative perception and attitude towards communication skills, contrary to students in the  final year who had positive responses towards the course.
When Conventional Medicine Fails: Bori and Olokun Ritual Dance as Treatment for Post-Traumatic Stress Disorder (PTSD) for Nigerian Armed Forces
Authors: Ikem Awele Peace , Ihidero Victor Osae
Published: May 2024

This article attempts a conceptualisation of African ritual dance therapy (ARDT) as a distinct form and practice of dance movement  therapy (DMT). We argue that Bori and Olokun dances, two of Nigeria’s most potent ritual dances, possess therapeutic elements that  bear on the treatment of combatants of the Nigerian armed forces currently engaged in a theatre of war against terrorism and banditry  in Nigeria. Our argument is premised on the discovery that military hospitals in Nigeria is currently over-stretched with about 57% of the  military and paramilitary personnel (participants) suffering from post-traumatic stress disorders (PTSD) resulting from their encounters  with terrorists’ cells and bandits. We argue against the institutional frame that sanctions the normalization of conventional medical  practice as well as medicine in the diagnosis and treatment of men of the armed forces faced with PTSD. We use ARDT dance  ethnography as a theoretical premise to contend that African ritual dance therapy (ARDT) offers an alternative curation for the men of the  Nigerian Armed Forces. We use the research instrumentations of focus group discussion and ARDT workshop sessions to get data  from 12 para/military participants. We found out that the Bori and Olokun ARDT convey diverse spirit-restorative medicaments that can  serve the Nigerian Armed Forces.
Aspects of Innovative Language Use in Femi Adedina’s Highway to Nowhere
Authors: Sonde Simeon Olufunso , Adedina Femi
Published: May 2024

Code switching and mixing, lexical transfer, loan blend and semantic extension are innovations in the novel of Femi Adedina’s, Highway  to Nowhere (HTN), the text used in this paper. Barbaresi’s Morphopragmatics, which integrates morphology and pragmatics, is the  theoretical perspective. Our analysis focused on the aspects of code switching/ mixing, lexical transfer and loan blend used in HTN.  Yoruba codes that cannot be pragmatically translated into English language codes but switched and mixed were analysed. Meaning of  terms that contain semantic extension, figurative/proverbial and deep traditional Yoruba meanings were explicated. Lexical transfer of  items like mágùn, Ìkòkò, Àkosèjáyé, etc., were done to locate the novel in Yoruba traditional and cultural contexts. The study concluded  that writers of literary works in English as a second language should preserve the sacred codes/names that things are called in their  cultures in the process of translating their experiences to other languages.
Challenges and Prospects of Contemporary Nigerian Textile Design
Authors: Onwuakpa Lovina Ebele
Published: May 2024

Nigerian textile in all its ramifications is one of the oldest art practices in Nigeria. While it is worthwhile to note that textile design  repertoire has been a major part of the nation’s identity, textile designers who form a considerable part of the workforce are confronted  with challenges. On one hand, the current trend in globalisation has exposed textile designers to new materials and techniques as well as  the potential influences of other world cultures. This paper contends that in the quest to become globalised, the traditional African  cultural heritage is being sacrificed on the altar of modernization. On the other hand, the introduction of new materials and techniques  counts among the instruments or tools for positive impact. It is on this premise that one can say that contemporary Nigerian textile  designers alongside their designs are reminiscent or reflect a society in the cusps of change in terms of challenges and prospects. Hence,  this article offers some useful knowledge on this development as it establishes the extent to which Nigerian textile designers had  suffered from several inadequacies that posed as challenges. It also highlights some reasonable prospects for growth or advancement in  the industry in Nigeria.
The Compromised Tense-Aspect Distinction in Bantu Languages: The Case of Nyakyusa
Authors: Robinson Nichodamus
Published: May 2024

This article examined the compromised tense-aspect distinction in Bantu languages, using Nyakyusa as a case study. The review of  scholarly works indicates that, in Bantu languages, the changing nature of tense-aspect systems remains to be the source of the problem  for tense-aspect distinction. The paper investigates the source of the problem and a way in which Nyakyusa can describe tense-aspect  distinction. The study was conducted in Kyela District in Mbeya Region where many native speakers live. Data were collected through  narrative stories, interviews and written texts. The findings reveal that although the -ile suffix is the source of the compromised tense- aspect distinction as it assumes different roles; it remains a good candidate for testing tense-aspect distinction. When the - ile suffix co- occurs with the pre-root formative, -a- it marks the past tense whereas the suffix -ile occurring alone marks aspect categories. Also, when  the negative marker -ka- is introduced the -ile suffix disappears for aspect and remains for tense.
A Comparative Multimodal Stylistics Analysis of Selected Newspapers Cartoons
Authors: Ogunrinde Ebenezer Deji , Oladunni Adegboye Kehinde
Published: May 2024

This study focuses on the comparative multimodal stylistic analysis of selected newspapers cartoons. A comparative study of newspapers cartoon juxtaposes two or more newspaper cartoon brands. Multimodality entails the mode(s) employed in a cartoon to portray  meaning. The data for the study comprises ten cartoons selected through the purposive random sampling technique between 2020 and  2021 from The Punch, The Nation and The Guardian newspapers respectively. Data were analysed using Halliday’s meta-function of  language in his Systemic Functional Grammar. It was discovered that framing, salience and linking layout are handy analytical tools in  carrying out a multimodal analysis; each brand communicates its thoughts in a unique way with salient similarities and it was discovered  that newspaper cartoons also lament the current tragic occurrence in society. This study concludes that visual mode is the lifeblood of a  newspaper cartoon while the verbal mode only complements cartoon but cannot stand alone as a newspaper cartoon.
The Song of Songs: Focalising Love and the PublicPersonal Poetics in Remi Raji’s Poetry
Authors: Omobowale Emmanuel Babatunde , Ajibola Opeyemi
Published: May 2024

Much of the existing critical scholarship on Remi Raji’s poetry appraised the poet’s portrayal of his angst against oppression and the  oppressors of the people. His poetry has often been read within the poetics of rage and social discountenance. Sule’s projection of Remi  Raji as an angry poet has enjoyed the dominant estimation by which Raji’s poetic oeuvre is engaged. This study examines four of Raji’s  collections of poetry— A Harvest of Laughters, Lovesong for my Wasteland, Sea of my Mind, Webs of Remembrance and Gather my blood  Rivers of Song, exploring the poet’s loveworld, with a view to underscoring how a focus on the tropes of rage, discontentment and  disillusionment in the collections mask the poet’s dominant presentations of lovesongs for the land, a mistress, nature, and others. While  it is right to say that Raji’s poetry is overtly political, it is more accurate to relate that there is more to his poetry than the political theme. We see in Raji’s poetic oeuvre a fine balance between the poet’s preoccupation with the sociopolitical realities of the nation state and the representations of his loveworld, extolling that all-too-human other side of life. This study calls for a broadened conception of Remi Raji’s  poetry, beyond the aesthetics of rage, angst and disillusionment to the poet’s depiction of the capacity of love to herald hope, and  ultimately right the wrongs in the postcolony.
Costume, Make-Up and Props as Conveyors of Culture in Nollywood
Authors: Bature-Uzor Nkechi Asiegbu
Published: May 2024

This paper interrogates how the use of costume, make-up and props in Nollywood aid in situating the films within a culture. Film art is a  cultural product which propagates and instils the culture of its origin to the viewer. It does this through the use of costume, make-up and  props which help to establish the background of the narrative. Aguba (2004), a Nollywood film will be used for analysis and discussion in  this study. Anchored in Social Semiotic Theory, the article uses descriptive and analytical methods to explicate the use of costume, make- up and props in Aguba, The findings reveal that costume, make-up and props situate films to a particular culture as it is the case in the  film under study. The paper concludes that costume, make-up and props is used to convey cultural information in Aguba. We, therefore,  recommend that costume, make-up and props should be discerned as the most visible channel through which we propagate and  document the people’s identity, using it to showcase cultures and values.
Chronic Exposure to Carbon Tetrachloride (CCl4) Disrupted the Functional Integrity of the Bone Marrow of Splenectomized Wistar Rats
Authors: Unamba-Oparah Ihemdirim Chukwuma , Unamba-Oparah Chioma
Published: May 2024

Splenectomy is a surgical intervention recommended for a variety of diseases and neoplastic conditions. Understanding the vulnerabilities of splenectomized individuals to various forms of toxicities will inform the lifestyle changes and management of such  individuals. In this study, bone marrow integrity following chronic carbon tetrachloride (CCl4) toxicity in splenectomized female Wistar  rats was investigated. Fifteen (15) female Wistar rats, with a mean body weight of 172.36 ± 2.48g and randomly allocated into three  groups of five rats each were used. Group I were untreated and served as the control. Group II were unsplenectomized (intact) and CCl4  treated. Group III were splenectomized and CCl4 treated. For the treatment, CCl4 was diluted in paraffin oil to a concentration of 10% CCl4  and administered at the dose of 3 ml/kg each, intraperitoneally. Bone marrow activities for all groups were evaluated using  haematopoietic indices relating to proliferation and maturation of myeloid, erythroid and lymphoid cell lines. The result showed that while chronic CCl4 toxicity in rats moderately depressed the maturation of myeloid and erythroid cell lines without severely affecting the  overall haematopoietic capabilities of the marrow, these changes were exacerbated in the bone marrow of splenectomized rats.
Molecular And Serological Detection Of Newcastle Disease Virus In Live-Bird Markets, Jos, Plateau State In Nigeria
Authors: Chinyere C.N. , Mpkuma N. , Meseko C.A. , Shittu I. , Okwor E.C. , Ezema W.S. , Nwosuh C.
Published: May 2024

Newcastle disease (ND) is a highly infectious viral disease of birds caused by the Newcastle disease virus (NDV) and it has been reported  in domestic birds in Nigeria. Waterfowls and village poultry in live bird markets (LBM) acts as reservoirs, potentially reintroducing the  virus to commercial poultry. This study aims at molecular and serological detection of NDV at live bird markets in Plateau State, Nigeria. A  cross sectional analysis involved 309 pooled cloacal and tracheal swabs over three months were analyzed by reverse transcriptase  polymerase chain reaction (RT-PCR), RT-qPCR, virus isolation and haemagglutination and haemagglutinationinhibition test (HA &HI).  Virus isolation was attempted in 9 to 11 days old specific antibody negative (SAN) embryonated chicken eggs and fifteen samples showed  haemagglutination. Subsequent tests confimed nine of these as NDV positive through haemagglutination and haemagglutination inhibition (HI) tests. Conventional RT-PCR and RT-qPCR further validated five of the nine NDV positive isolates. The  phylogenetic analysis of partial F gene nucleotide sequences revealed that all three isolates belonged to class II genotype XIV.2_XIVb. This  finding underscores the persistent threat of NDV to local poultry, necessitating comprehensive virological surveillance to  understand, isolate and characterize the virus in Nigeria. Therefore, monitoring for emerging lineages and sub-lineages in Nigeria birds  is crucial for safeguarding commercial poultry production.
Radiographic Determination Of Costophrenic Angle Sizes In The Nigerian Indigenous Dog
Authors: Ukaha Rock Odimma , Agwu Kenneth Kalu , Kene Raphael O.
Published: May 2024

Assessment of major organs like the heart, trachea, lungs, and diaphragm forms the most common thoracic investigation in small animal  radiology. In other words, consideration of the sizes and shapes of thoracic sinuses are usually overlooked, unless the angular  recesses are grossly abnormal. The objective of this cross-sectional prospective radiologic study was to measure and document normal  index values of costophrenic angular recesses in the Nigerian indigenous dog breed. A total 30 dogs (average body weight: 8.19±2.45 kg)  were used for the investigation. Thoracic dorsoventral (DV) and ventrodorsal (VD) projections were obtained of each dog, giving a total of  60 radiographs. Each thoracic silhouette was carefully studied and the costo-phrenic angular recesses (CPAs) were measured, in both  DV and VD views, and recorded. Expressed as means and standard errors of means, the results obtained were: 23.40±0.770/23.40±0.540  for the left/right DV CPAs and 24.20±0.620/24.27±0.600 for left/right VD CPAs, respectively. The results of this study are clinically relevant  and objectively easily applicable in canine practice for thoracic studies.
West Nile Virus Sero-Reactive Animals Reveal Potential Zoonotic Threat In Nigeria
Authors: Igah Olanrewaju Eyitayo , Oyetunde Seyi Joshua , Omoniwa David Oludare , Edeh Emmanuel Richard , Asala Olayinka , Shittu Ismaila , Meseko Clement
Published: May 2024

West Nile Virus (WNV) is a zoonotic mosquito borne arbovirus that causes encephalitis in horses and human. It is a pathogen of public  health importance globally. Data on WNV epizootics in Nigeria is limited, necessitating seroprevalence studies in animals. In this study,  118 sera from Polo horses and 66 archival sera from 31 horses, 10 chicken, 15 rabbits and 10 dogs in Northern and South-Western Nigeria  were screened for WNV using West Nile multi-species competitive ELISA. The overall seroprevalence of WNV was 78.26% (n=144).  In horses, 93.28% (n=139) of the 149 horse sera were positive, all the 10 chicken samples tested were negative to WNV, only 1 (6.67%) of  the 15 rabbits sera tested positive and 4(40%) of 10 dog sera tested was positive. The lack of sero-reactivity in domestic chickens in this  study does not suggest a low incidence rate in wild birds that are known reservoirs. Sero-reactivity in rabbits and dogs indicates their  exposure and susceptibility to WNV and therefore requires further investigation. The high sero-reactivity recorded in horses reiterates  the important role they play in WNV epizootics which underscores the public health risk associated with WNV at the human-animal  interface in Nigeria.
Utilisation des espèces ligneuses dans les activités halieutiques artisanales à la périphérie du barrage de Lom-Pangar (Est-Cameroun)
Authors: Zock Bruno , Kono Léon Dieudonné , Bindzi Marie Alain Mbarga , Biye Elvire Hortense , Youmbi Emmanuel
Published: May 2024

Description du sujet. L’utilisation des espèces ligneuses dans les activités halieutiques artisanales à la périphérie du barrage de Lom-Pangar (Est-Cameroun) a entrainé une forte croissance démographique. Afin de contribuer à une meilleure gestion et conservation de l’écosystème forestier, une étude portant sur l’inventaire et les menaces potentielles qui pèsent sur les espèces ligneuses utilisées dans les activités susvisées a été réalisée, sur la base de la répartition spatiale des souches d’arbres.Objectif. L’objectif de cette étude vise à recenser et à déterminer la répartition spatiale des souches d’espèces forestières utilisées dans la pêcherie artisanale à la périphérie du Barrage de Lom-Pangar.Méthodes. L’inventaire a été effectué sur une surface échantillon de 32 ha (taux de sondage de 0,5 %) comportant 8 transects de 1000 m x 40 m, soit 4 ha chacun. L’inventaire des souches d’arbres de la flore a reposé sur la méthode des transects.Résultats. Les inventaires effectués ont permis de dénombrer 441 souches d’arbres appartenant à 35 espèces, réparties entre 22 familles et 32 genres.Conclusion. À travers cette étude, l’impact des activités halieutiques sur la conservation de la ressource forestière ligneuse est également abordé, dans une perspective de mise en place de stratégies pour une gestion durable de cette ressource.
Description of the subject. The use of woody species in artisanal fishing activities on the outskirts of the Lom-Pangar dam (East Cameroon) has led to strong demographic growth. To contribute to better management and conservation of the forest ecosystem, a study was carried out on the inventory and potential threats to the woody species used in the above-mentioned activities, based on the spatial distribution of tree stumps.Objective. The aim of this study was to identify and determine the spatial distribution of tree stumps used in artisanal fishing around the Lom-Pangar dam.Methods. The inventory was carried out over a sample area of 32 ha (0.5% sampling rate), comprising 8 transects of 1000 m x 40 m, i.e. 4 ha each. The inventory of tree stumps and flora was based on the transect method.Results. The inventories carried out enabled us to count 441 tree stumps belonging to 35 species, divided into 22 families and 32 genera.Conclusion. Through this study, the impact of fishing activities on the conservation of the woody forest resource is also addressed, with a view to implementing strategies for the sustainable management of this resource.
Modelling the Combined Use of Long-Lasting Insecticidal Nets and Insecticides Zooprophylaxis Against the Resilience of Anopheles Arabiensis for Effective Malaria Control
Authors: Levens Watson
Published: May 2024

Malaria is a significant public health concern, especially in tropical regions. It remains endemic in many areas where malaria mosquitoes are prevalent. This study investigates the viability of insecticide zooprophylaxis (IZ) in conjunction with Long Lasting Insecticidal Nets (LLINs) as a strategic approach to combat malaria transmission, particularly in regions dominated by zoophagic vectors. Through the presentation and analysis of a mathematical model that integrates IZ and LLINs for the control of Anopheles arabiensis (An. arabiensis), the research underscores IZ's role in reducing zoophagic vector populations and enhancing malaria control efforts. Notably, the study reveals that achieving comprehensive coverage of LLINs and IZ distribution systems can reduce the basic reproduction number (R₀) below 1. Furthermore, the research highlights the potential for substantial reductions in human biting rates, vectorial capacity and Entomological Inoculation Rate (EIR) when high intervention coverage encompasses all zoophagy blood sources for malaria vectors.
Modelling and Mapping of Forest Biodiversity Indicators Using Sentinel-2 and PlanetScope Remotely Sensed Data
Authors: Tesha Diana L. , Mauya Ernest W. , Madundo Sami D.
Published: May 2024

Tropical montane forests harbour exceptionally high biodiversity yet face severe threats from human activities. Assessing forest biodiversity over large areas is crucial yet extremely challenging. Remote sensing provides an efficient monitoring solution, but few studies have focused on Tanzania's diverse, montane forests. We collected field data on tree species composition within 159 plots across montane forests in Tanzania's West Usambara region. We calculated species richness, evenness, and Shannon diversity index as indicators of tree diversity. Using Sentinel-2 and PlanetScope satellite imagery, we derived spectral, textural, and vegetation index predictors to model these indices via generalized additive models and extreme gradient boosting. PlanetScope-based XGBoost models performed best, explaining 19.7% of variation in Shannon diversity. Incorporating textural predictors further improved model accuracy. Despite inherent challenges in modelling complex tropical forests, our findings demonstrate promising potential of Sentinel-2 and PlanetScope for regional biodiversity monitoring where field surveys are limited. Further research could enhance these initial results by leveraging higher resolution data and increasing field sampling for effective monitoring of tropical biodiversity.
MÔ HÌNH HÓA VÀ PHÂN TÍCH KHÔNG ỔN ĐỊNH BỘ GIA NHIỆT KHÔNG KHÍ BẰNG NĂNG LƯỢNG MẶT TRỜI DÙNG PHƯƠNG PHÁP SAI PHÂN HỮU HẠN
Authors: PHẠM BÁ THẢO  , ĐƯỜNG CÔNG TRUYỀN  , NGUYỄN MINH PHÚ
Published: May 2024

Bộ gia nhiệt gió nóng bằng năng lượng mặt trời là một thiết bị đơn giản, dể chế tạo và khả năng ứng dụng rộng rãi nhất là lĩnh vực sấy. Trong nghiên cứu này, một hệ phương trình vi phân được thành lập để tìm nhiệt độ trong thiết bị theo thời gian và chiều dòng không khí. Dữ liệu thời tiết gồm bức xạ mặt trời và nhiệt độ môi trường thay đổi theo thời gian trong ngày được dùng làm dữ liệu nhập vào mô hình toán. Kỹ thuật sai phân hữu hạn với phương pháp ẩn và sơ đồ ngược gió được dùng để rời rạc hệ phương trình đạo hàm riêng. Kết quả phân tích cho thấy xu hướng phân bố nhiệt độ trong thiết bị thay đổi theo buổi sáng và buổi chiều. Hiệu suất nhiệt cũng thay đổi theo buổi và bề dày kính. Hiệu suất nhiệt lớn nhất đạt ở 16 đến 17 giờ. Đầu ngày hiệu suất nhiệt rất thấp do năng lượng mặt trời chủ yếu được hấp thụ bởi kính và tấm hấp thụ. Để đạt được hiệu suất ít thay đổi theo thời gian, cần giảm bề dày kính và tấm hấp thụ.
TỐI ƯU HÌNH HỌC EJECTOR R134a SỬ DỤNG TRONG CHU TRÌNH TÍCH HỢP EJECTOR – MÁY LẠNH CÓ MÁY NÉN HƠI BẰNG CFD
Authors: NGUYỄN TRUNG KIÊN
Published: May 2024

Ejector là thiết bị quan trọng nhất trong các hệ thống máy lạnh ejector. Nhiều nghiên cứu chỉ ra rằng việc tối ưu hóa hình học ejector sẽ giúp nâng cao hiệu quả làm việc của chu trình lạnh ejector. Trong bài báo này, một ejector R134a sử dụng trong chu trình lạnh tích hợp ejector-máy lạnh có máy nén hơi được phân tích CFD. Các kích thước hình học chủ yếu của ejector đã được thiết kế sơ bộ dựa trên các mô hình 1D. Các kết quả tính toán chỉ ra rằng, tỷ lệ diện tích tối ưu của ejector trong điều kiện thí nghiệm (nhiệt độ phát sinh 80°C, nhiệt độ bay hơi 15°C, nhiệt độ ngưng tụ 34°C) là 8,88 và tỷ lệ tối ưu giữa chiều dài và đường kính thân ống nằm trong khoảng từ 2,35 đến 5,08.
HỆ THỐNG THÔNG MINH GIÁM SÁT VÀ QUẢN LÝ HOẠT ĐỘNG DẠY-HỌC: ÁP DỤNG TẠI CÁC PHÒNG THÍ NGHIỆM CỦA KHOA CÔNG NGHỆ ĐIỆN TỬ
Authors: TRẦN NGỌC ANH  , NGUYỄN NGỌC SƠN  , NGUYỄN THỊ HỒNG HÀ  , PHẠM QUANG TRÍ*
Published: May 2024

Bài báo đề xuất thiết kế hệ thống thông minh nhằm số hóa việc giám sát và quản lý các hoạt động dạy-học tại các phòng thí nghiệm (LAB). Các chức năng của hệ thống bao gồm quản lý giờ đóng/mở điện của phòng LAB theo đúng lịch dạy từ phần mềm, chấm giảng giảng viên, điểm danh sinh viên, giám sát chất lượng dạy-học. Đặc biệt, hệ thống phải có khả năng quản lý số lượng lớn các phòng thí nghiệm nhưng vẫn đảm bảo tính năng thời gian thực. Ý tưởng thiết kế hệ thống dựa trên nền tảng IoT (Internet of Things) bao gồm thiết kế thiết bị đầu cuối IoT (IoT-End-Device) tích hợp nhận dạng RFID (Radio Frequency Identification) để nhận diện người ra/vào phòng LAB, giám sát đóng-mở điện phòng LAB dùng công tắc tơ và cảm biến dòng, tích hợp mạng Zigbee để kết nối với các thiết bị đầu cuối IoT khác. Phần cứng IoT-Cordinator sẽ định tuyến, trao đổi dữ liệu từ các thiết bị đầu cuối IoT và truyền/nhận với trung tâm dữ liệu. Tại trung tâm dữ liệu, một phần mềm ứng dụng được thiết kế để giám sát và quản lý toàn bộ các hoạt động của hệ thống. Trung tâm dữ liệu này cũng tích hợp mạng internet để có thể kết nối, trao đổi dữ liệu với đám mây điện tử giúp giám sát từ xa. Hệ thống đã được kiểm chứng thực nghiệm về chức năng, khả năng truyền nhận dữ liệu và áp dụng thử nghiệm để quản lý giám sát đồng thời 10 phòng LAB của Khoa công nghệ điện tử. Kết quả thử nghiệm cho thấy hệ thống hoạt động ổn định, bền vững, đảm bảo khả năng thời gian thực và dễ dàng tùy biến khi thêm hoặc bớt quản lý một phòng LAB.
INVESTIGATION OF THE RELATIONSHIP BETWEEN BORDERLINE PERSONALITY TRAITS, SHYNESS AND ANGER
Authors: Faraji Haydeh , Özarabacı Tilbe , Anıl Mustafa Burak
Published: May 2024

Borderline individuals struggle with self-control and exhibit volatility in both their thinking and actions. The main aim of the research is to investigate the relationship between borderline personality traits, shyness and anger. In the study, a relational screening approach was employed. Four hundred ten adults, 207 males (50.5%) and 203 females (49.5%) aged 18-45 years, took part in the study using a simple random sampling method. The study's data collection tools are the Shyness Scale, Borderline Personality Scale-BPQ, Trait Anger (SL- Anger) Scale, and Personal Information Form. The SPSS 25 program was used to analyze the data that were gathered for this study. The Independent T-Test and ANOVA Test were used to compare continuous variables that provide normal distribution as a result of the test. The Pearson Correlation coefficient was used to analyze the relationship between continuous variables. Results indicate that as the level of borderline personality traits increased, the levels of constant anger, internalized anger, externalized anger, and shyness increased; the level of anger control decreased. In addition, intense anger, which is a borderline personality trait, predicts constant anger, externalized anger, and anger control. Emptiness also predicts internalized anger and shyness.
Delimitación normativa del despido colectivo en la Unión Europea. Evolución histórica y extinciones “de hecho”
Authors: Castro Franco Ana
Published: May 2024

El presente estudio tiene por objeto analizar la institución del despido colectivo y trazar su evolución histórica a través de las normas articuladas en el Derecho de la Unión y el Derecho interno en España. Aportar una definición general exige comprender su origen, situando el punto de mira en las reformas legislativas acaecidas en los últimos años como consecuencia de las sucesivas crisis económicas y sanitaria. Precisamente, las modificaciones han estado encaminadas a alcanzar un equilibrio sostenible entre la situación de mercado —marcada por altas tasas de desempleo e insolvencia—, los intereses de las empresas y la necesaria protección de los trabajadores. La regulación de las reestructuraciones es, en realidad, muy diferente de la ordenación de los despidos individuales, no solo en los tipos de procedimientos legales previstos, sino también en sus objetivos. En la práctica, la alternativa a la terminación colectiva no es la ausencia de la misma, sino varios despidos individuales que, sin haber seguido los trámites oportunos, plantean desafíos jurídicos de envergadura, pero con proyección trascedente a la gestión y responsabilidad social.
Direcții și perspective de utilizare a metodei proiectului pentru evaluarea rezultatelor învațării în învățământul extrașcolar
Authors: COROLEAC Oxana
Published: May 2024

Acest articol prezintă câteva aspecte de utilizare a metodei proiectului pentru evaluarea rezultatelor învățării la orele cercului de „Educație plastică” în învățământul extrașcolar. Metoda proiectului este un model centrat pe elev, care include diferite forme de instruire, evaluare și participare activă a acestuia în procesul didactic. Metoda proiectului oferă un mediu bogat și semnificativ în care elevii dezvoltă abilități complexe interdisciplinare, care sunt esențiale pentru o funcționare eficientă în lumea modernă.
Tecnologías del aprendizaje y el conocimiento y su influencia en el desarrollo del pensamiento complejo
Authors: Argueta Ochoa Adela Leticia
Published: May 2024

OBJETIVO: determinar la influencia de las tecnologías del aprendizaje y el conocimiento en el desarrollo del pensamiento complejo. MÉTODO: el estudio se enmarcó en un paradigma constructivista, con enfoque mixto, alcance descriptivo y diseño concurrente. Se aplicó una encuesta a una muestra de 133 estudiantes y una entrevista a 6 docentes. RESULTADOS: el 37.59 % de estudiantes considera que las tecnologías del aprendizaje y el conocimiento contextualizan los contenidos vinculándolos con la realidad; el 35.30 % que favorecen la exploración de diversas perspectivas y fuentes de información; el 34.77 % que permiten experimentar con el contenido y establecer conexiones mentales propias; el 37.60 % que facilitan el acceso a múltiples perspectivas y puntos de vista; el 40.60 % que fomentan un aprendizaje dinámico y flexible; el 44.4 % que promueven el diálogo y la discusión sobre problemas reales. Estos hallazgos se corroboraron en las entrevistas, donde los profesores destacaron los beneficios de las tecnologías, aunque señalaron la necesidad de una mayor capacitación para potenciar el pensamiento complejo. CONCLUSIÓN: estudiantes y profesores reconocen la influencia positiva de las tecnologías del conocimiento y el aprendizaje en el desarrollo del pensamiento complejo, sin embargo, los profesores demandan una formación más sólida para su implementación efectiva, destacando la necesidad de un proceso de preparación continua y de calidad para comprender plenamente el pensamiento complejo.
Implementasi Sistem dalam Menghitung Transaksi dan Stok pada Proses Penjualan di Yamaha Anugerah Motor Berbasis Web
Authors: Wijaya Stanley , Birowo Sigit
Published: May 2024

The rapid development of technology in the era of Industry 4.0 has made various internet uses essential to fulfill several needs. This includes systems that can assist in the business sector. With the advancement of technology, it greatly aids daily life. The research aims to develop a web-based application to calculate transactions and stock in business. This application can display information related to sales figures, reports, and data management of goods that are user-friendly for business practitioners. The system to calculate transactions and stock can be applied to assist the sales business process. It provides information about available items so that business practitioners can sell goods and view transaction data. This web-based system is operated through a website and uses the internet as a platform to manage and store available data. Researchers used qualitative field research methods to collect profile data and information about the current running systems as supporting elements in application development. For application design, researchers used Visual Studio Code software, which can be used to create websites using programming languages such as HTML, CSS, and JavaScript. The system development method applied is the prototype method. This method was chosen by researchers as it is suitable and meets the needs of the system to be developed. The final result of this research is a web-based application for calculating transactions and stock in the sales process at Yamaha Anugerah Motor. The designed application features displaying information about managing goods and categories, as well as conducting transactions that are directly recorded in sales reports. With this system, one can track transactions and stock levels. Data management for goods is computerized, and reports about transactions and stock can be printed easily. It also facilitates easy restocking of goods.
Application of Public Relations Management Concept as A Communication Strategy for Corporate Social Responsibility Campaign #BeautyDiQuity PT Luxury Cantika Indonesia (Luxcrime)
Authors: Wibowo Wini Elia , Permassanty Tanty Dewi
Published: May 2024

Luxcrime conducted a public relations program campaign, in 2023 by choosing the campaign moment to coincide with International Women's Day with the theme "Beauty in Diversity and Equality" #BeautyDiQuity which means that beauty in diversity and equality. In the #BeautyDiQuity campaign, Luxcrime invited five disabled models to campaign for beauty in diversity and equality, Luxcrime also invited the audience to take part and support the #BeautyDiQuity program by buying International Women's Day Bundle products which later ten percent of the revenue will be donated to the Unique Project Theatre Foundation and Nali Tari Yogyakarta. The response obtained through the BeautyDiQuity CSR event as part of Luxcrime's public relations activities was positive and supported. Where Luxcrime celebrates the diversity of beauty. This is already based on CSR activities that have previously been carried out by Luxcrime. So the expected response from this activity remains oriented to the Luxcrime brand image as a brand that upholds empowerment values and not just selling.
Pertimbangan Hakim dalam Mengkualifikasi Tindak Pidana Penganiayaan Berat dalam Praktik Peradilan (Studi Kasus Putusan Perkara Nomor: 372/Pid.B/2020/PN.Jkt.Utr)
Authors: Firosyiah Nur , Suyatna Suyatna
Published: May 2024

Tindakan melanggar integritas fisik seseorang disebut sebagai tindak pidana penganiayaan, yang diatur mulai dari Pasal 351 hingga Pasal 358 KUHP. Namun, pasal-pasal tersebut tidak mencakup definisi atau batasan yang jelas tentang penganiayaan, dan tidak mengatur alat atau sarana yang digunakan oleh pelaku untuk melakukan tindakan tersebut. Sebagai contoh, dalam putusan Nomor 372/Pid.B/2020/PN.Jkt.Utr., hakim dianggap tidak akurat dalam memutuskan suatu kasus. Tujuan penelitian ialah untuk mengetahui pertimbangan hakim dalam mengkualifikasi tindak pidana penganiayaan berat. Metode penelitian jenis normatif dengan pendekatan perundang-undangan, konseptual, dan kasus yang bersumber dari data sekunder yang dianalisis secara kualitatif. Berdasarkan temuan dari penelitian, dapat disimpulkan jika hasil penelitian ini menghasilkan putusan hakim dalam kasus Nomor 372/Pid.B/2020/PN.Jkt.Utr. yang kurang tepat. Hal ini disebabkan oleh fakta hukum yang terungkap selama persidangan dan dampak yang dialami oleh korban sebagai akibat dari tindakan terdakwa yang memenuhi unsur penganiayaan berat serta mengacu pada konsep luka berat sebagaimana diatur dalam Pasal 90 KUHP. Hakim kurang cermat dalam mengidentifikasi tindak pidana penganiayaan, sehingga putusan tersebut tidak mencerminkan keadilan, khususnya bagi korban.
Ecuaciones lineales en acción: una perspectiva innovadora de la enseñanza a través de la Teoría Situaciones Didácticas
Authors: Mejía González Paola , Quezada-Matute Tatiana
Published: May 2024

La concepción de que las matemáticas son un área destinada únicamente para mentes sobresalientes persiste actualmente, en consecuencia, tanto docentes como estudiantes buscan métodos para enseñar y aprender; sin embargo, a menudo se enfrentan a la memorización con la intención de encontrar salida fácil en esta asignatura. La investigación propone la Teoría de Situaciones Didácticas de Guy Brousseau como estrategia para enseñar los sistemas de ecuaciones lineales; a fin de que, los docentes empleen métodos innovadores al impartir dichos temas, además de, dinamizar la interacción entre los actores educativos y favorecer la construcción del conocimiento. La metodología utilizada dispuso un enfoque mixto con la aplicación de: entrevistas, encuestas y prueba de ejecución. Los resultados revelaron dificultades de los estudiantes en conceptos de álgebra y la falta de bases sólidas, además, se observó que los docentes continúan usando métodos tradicionales a pesar del contexto actual; estos hallazgos subrayan la necesidad de renovar los enfoques de enseñanza en matemáticas y promover la interacción entre docentes y estudiantes para construir conocimiento. El estudio aboga por un cambio hacia métodos innovadores y dinámicos para mejorar la enseñanza matemática y superar la idea errónea de su inaccesibilidad para todos con el uso de Situaciones Didácticas.
Peran Lingkungan Keluarga, Motivasi, dan Pengetahuan Kewirausahaan terhadap Minat Berwirausaha Mahasiswa
Authors: Prasiska Dilla Wahyu , Mariyanti Eka , Nasrah Rasidah
Published: May 2024

This study aims to investigate the effect of family environment, entrepreneurial motivation, and entrepreneurial knowledge on the entrepreneurial interest of students of the Faculty of Economics and Business (FEB) of XXX University in Padang City. The population used in this study were active students of FEB of XXX University in Padang City in the 2020 and 2021 academic years, totaling 384 people. The non-probability sampling technique was used for sample selection, and sampling was carried out using the Rao soft Sample Size Calculator Software Technique so that a sample of 102 respondents was obtained. The results of research and data analysis show that entrepreneurial motivation is the most influential variable on entrepreneurial interest, with a beta value of 0.496. This indicates that students who have high entrepreneurial motivation tend to have greater entrepreneurial interest. However, family environment and entrepreneurial knowledge also have a significant influence on student entrepreneurial interest, although not as strong as entrepreneurial motivation.
BOOK REVIEW- So, You want to talk about race by Ijeoma Oluo
Authors: Bhattarai Richa
Published: May 2024

So, You Want to Talk About Race is a non-fiction book written in 2018 by Ijeoma Oluo. Each chapter title is based on a question in the context of race in contemporary America. The book review demonstrates authors’ thoughts on topics as well as advice on how to talk about issues related to race. The review of the book highlights the argument on the United States’ political, economic, and social systems, and how they are impacted by systematic and institutional racism. This analysis provides summary of the book and highlights some important components for readers while discussing race-related subjects, such as affirmative action, microaggression, and police brutality.