bluuebunny/crossref_metadata_2025 huggingface dataset:
Algoritma K-Means Clustering dalam Optimalisasi Komposisi Pakan Ternak Ayam Petelur
Authors: Andini Felka , Zilfitri Della , Filki Yosep , Ridho Muhammad
Published: September 2022

In Indonesia, the laying hens business sector experiences many obstacles, farmers often face instability between the price of chicken eggs and the price of feed which tends to always increase. The income received by farmers is not proportional to the cost of feed incurred. The production cost of laying hens can be reduced if there is an increase in feed efficiency. Maintenance of laying hens lies in the provision of feed, water, physical conditions and the state of the cage. Feed is the main source of energy for laying hens. The problem of feed in laying hens must meet the quality and quantity of the feed itself so that the effect is very real and clear on egg production. Feed nutrition must also meet the needs of laying hens. Feeding laying hens without paying attention to the quality of the feed can result in the growth and productivity of chickens being not optimal. Combining feed is an effort that can be made to produce a quality feed composition. This research was conducted to compile the composition of laying hens' feed using the K-Means Clustering algorithm. The K-Means Clustering method is an algorithm used by researchers to group or cluster data on laying hens feed into several clusters by using the nutritional content of each feed as an attribute. In this study, the data analyzed was data on the nutritional content of laying hens feed consisting of attributes such as protein, fat, crude fiber, calcium and phosphorus. This study will produce 3 clusters of feed types consisting of highly optimal clusters, optimal clusters and less than optimal clusters. This research is expected to be used as a recommendation by laying hens in compiling the composition of laying hens to maintain the quality of the eggs produced.
Metode K-Means Clustering Dalam Optimalisasi Kinerja Dosen Pendamping Akademik Pada Program Kampus Merdeka
Authors: Fathuroh Siti
Published: September 2022

Penelitian kinerja terhadap Dosen Pendamping Akademik (DPA) pada pelaksanaan Program Kampus Merdeka dilakukan setiap semesternya, dan masih mengolah data penilaiannya pendamping akademik secara manual yang mana dalam mengevaluasi tingkat kinerja pendamping akademik tersebut membutuhkan waktu yang cukup lama untuk mendapatkan hasil yang baik. Data penilaian kinerja pendamping akademik di peroleh dari Sekolah Tinggi Keguruan Ilmu Pendidikan Muhammadiyah Muara Bungo Kabupaten Bungo Provinsi Jambi. Data Dosen di ambil sebanyak 28 data, selanjutnya data penilaian tersebut diolah dengan metode K-Means dan diuji dengan Software RapidMiner. Proses yang digunakan untuk mengolah data Input dan teknik Clustering dengan algoritma K-Means. Kebutuhan input sistem yang dibangun membutuhkan input, yaitu : data penilaia kinerja Dosen Pendamping Akademik (DPA). Hasil penilian Kinerja Dosen Akademik (DPA) dengan metode ini membagi tiga kelas hasil penilaian, dan dengan perkiraan hasil yaitu kinerja sangat baik 43%, Kinerja baik 50% dan kinerja buruk 7% dan tingkat keberhasilan sampai 92% dengan mengguakan metode ClusteringI dan Algoritma K-Means dapat membatu pengambilan keputusan Kepala Biro Pendidikan Sekolah Tinggi Keguruan Ilmu Pendidikan Muhammadiyah Muara Bungo untuk membuat rekomendasi penilaian inerja Dosen terhadap mahasiswa di semester selanjutnya.
Characteristics of Entropion Patients at Dr. Mohammad Hoesin General Hospital: A Descriptive Study
Authors: Saskia Tresa Ivani , E Iskandar
Published: September 2022

Introduction: The eyelids or lids have the function of protecting the eyeball and secrete glandular secretions that form a tear film in front of the cornea. This study aimed to assess the characteristics of patients with entropion.

Methods: This research is a retrospective study approach. Data was obtained from Dr. Mohammad Hoesin General Hospital, Palembang, from January 2019 to December 2021. Medical record data included in this study were patients diagnosed with ptosis, entropion, and ectropion patients. The exclusion criteria were patients with missing medical records and any other palpebra abnormalities. The necessary variables were analyzed descriptively by calculating the prevalence and looking at the patient characteristics of entropion.

Results: Most age in patients with entropion are those with age >60 years, which is as much as 66.67% of patients. The most affected eyes were the left eye and both eyes (44.44%) and the superior eyelid (66.67%). In this study, the most common type of entropion was the cicatricial type which was found in 5 patients (55.56%). No spastic and congenital entropion was found in this study.

Conclusion: The most common age are those with age >60 years. The cicatricial type was the most common type in patients with entropion at Dr. Mohammad Hoesin General Hospital.
Factors Affecting the Efficiency of the Internal Control System, Impact on the Competitiveness of Vietnam Businesses. Case Study in Binh Duong Province
Authors: Long Nguyen Vuong Thanh , Phu Nguyen Huu , Nhi Vo Van , Toan Le Duc , Son Nguyen Phi
Published: September 2022

The article presents research on the factors affecting the effectiveness of the internal control system, thereby finding out the relationship between the effectiveness of the internal control system and the competitiveness of enterprises. The data was surveyed at 150 enterprises in Binh Duong province and processed through SPSS 20.0 software. The results show that there are 6 factors affecting the effectiveness of the internal control system. The control environment is a factor that strongly influences the effectiveness of internal control. The effectiveness of the internal control system affects the competitiveness of the enterprise. From the research results, the article has proposed some managerial implications for the relevant units.
Assessment of Serum Ferritin, Folate, Vitamin B12, C-reactive Protein, D-dimer and Homocysteine in Patients with Severe and Critical Covid-19 Infection
Authors: Nawar Mazin AL-Alwan  , Zainab A. Razak Al-Sharifi  , Abbas Hashim Abdulsalam
Published: September 2022

Background: Corona virus disease 2019 (COVID-19) pandemic need urgent measurement and correlationof laboratory parameters in severe and non-severe cases. Serum ferritin, folic acid, vitamin B12, C-reactiveprotein, D-dimer and homocysteine was measured in patients who were infected with COVID-19.Aim of the Study : To evaluate the usefulness of serum ferritin, folate, B12, C-reactive protein, D-dimer andhomocysteine level as biomarkers for prediction of patients with severe and critical COVID-19 infection.Subject, Material, Method: A cross sectional study was conducted at AL-Kindy hospital, Baghdad, Iraqfrom October 2020 to December 2020. Serum ferritin, folate, Vitamin B12, C-reactive protein, homocysteineand blood D-dimer were measured in 88 patients who suffered from COVID-19 infection, 50 cases withsevere infection and 38 with non-severe infection. The age range of patients between 20-59 years old.Samples were collected from AL-Kindy hospital, Baghdad.Result: Serum folic acid was significantly low in severe group than in non-severe group, while serumferritin, CRP and blood D-dimer were high in severe group than in non-severe group.Conclusion: In this study, measurement of serum ferritin, CRP and blood D-dimer were important in followup of patients who infected with the novel virus as the level of them were higher in severe than in nonseverecases. Folic acid has role in determining the severity of COVID-19 infection bacause level was lowin patients with severe than non-severe infection.
TECHNIQUES AND RESEARCH DIRECTION OF 5IRECHAIN SECURITY AND PRIVACY
Authors: MATTILA VILMA , GAURI PRATIK , DWIVEDI PRATEEK , DADHICH DHANRAJ , AHBAB MD
Published: September 2022

With the growing interest in blockchain in both academic research and industry, the security and privacy of blockchains have attracted huge interest, even though only a small part of the blockchain platforms can achieve the set of abovementioned security goals in practice. Leveraging from the state-of-the-art security paradigms, we propose 5irechain protective covering which has the ability to continuously identify, map, scan, assess, and grade the risk portfolio of all the assets, vendors, and acquisitions of a company giving a hackers perspective to the company. The dashboard gives visibility of not just only the web2 infrastructure in place, but also covers the web3 space and allows 5ire to monitor all of its nodes and their activities including historical data, tracking large wallets, monitoring bot activity, detecting transaction stats and volume along with the ability to block possible large scale attacks.
Solar-light-driven LaFexNi1−xO3 perovskite oxides for photocatalytic Fenton-like reaction to degrade organic pollutants
Authors: Huang Chao-Wei , Hsu Shu-Yu , Lin Jun-Han , Jhou Yun , Chen Wei-Yu , Lin Kun-Yi Andrew , Lin Yu-Tang , Nguyen Van-Huy
Published: September 2022

LaFexNi1−xO3 perovskite oxides were prepared by the sol–gel method under various conditions, including different pH values (pH 0 and pH 7) and different calcination temperatures (500–800 °C) as well as different Fe/Ni ratios (1/9, 3/7, 5/5, 7/3, 9/1). The samples were examined by XRD, DRS, BET, and SEM to reveal their crystallinity, light-absorption ability, specific surface area, and surface features, respectively. The photocatalytic Fenton reaction was conducted using various LaFexNi1−xO3 perovskite oxides to decompose the methylene blue molecules. Accordingly, the synthesis condition of pH 0, calcination temperature at 700 °C, and Fe/Ni ratio = 7/3 could form LaFe0.7Ni0.3O3 perovskite oxides as highly efficient photocatalysts. Moreover, various conditions during the photocatalytic degradation were verified, such as pH value, catalyst dosage, and the additional amount of H2O2. LaFe0.7Ni0.3O3 perovskite oxides could operate efficiently under pH 3.5, catalyst dosage of 50 mg/150 mL, and H2O2 concentration of 133 ppm to decompose the MB dye in the 1st order kinetic rate constant of 0.0506 s−1.
INVESTIGATION OF THE KINETICS OF SMOKE AEROSOL FORMATION DURING COMBUSTION OF ALKALI METALS
Authors: Чибисов Андрей Леонидович , Федоткин Дмитрий Вячеславович , Соина Елена Алексеевна , Инчиков Андрей Павлович
Published: September 2022

Разработана методика и получены экспериментальные данные зависимости концентрации аэрозоля от удельной поверхности и времени горения щелочных металлов. Предложена и оценена адекватность математической модели процесса образования аэрозоля при горении щелочных металлов. Также определены кинетические зависимости изменения концентрации аэрозоля в газовой фазе от времени горения, что в совокупности позволяет рассчитать количество и концентрацию аэрозоля щелочных металлов, образующихся при их горении.

The methodology was developed and there were obtained experimental data on the dependence of aerosol concentration on specific surface and combustion time of alkali metals. Adequacy of mathematical model of process of aerosol formation during combustion of alkali metals is proposed and evaluated. The kinetic dependencies of the change in the concentration of aerosol in the gas phase on the combustion time are also determined. It enables to calculate the amount and concentration of aerosol of alkali metals formed during their combustion.
The Effect of Palm Bunch Ash and Wood Ash on the Growth and Yield of Fluted Pumpkin (Telfaria Occidentalis)
Authors: Abana P.C.
Published: September 2022

This study was designed to investigate the effect of Palm Bunch and wood ash on the growth and yield performance of fluted pumpkin (Telfairia occidentalis). The Study was carried out at Federal Polytechnic Nekede, Student Research Farm. The Nekede soil is sandy loam textured, with pH value as low as 4.8 and very deficient in OM and N. Amelioration treatments were carried out by adding organic supplements (palm bunch ash and wood ash) to the soil. The study used a randomized complete block design with 10 t/ha palm bunch ash (PBA), 10 t/ha wood shave ash (WA), 5 t/ha PBA + 5 t/ha WA and a control (no additives added), making a total of four treatments. The treatments were replicated three times. The experimental works were undertaken in field plots. The growth parameters examined were: Plant height, leaf number and vine length and shoot/root ratio, fresh weight. Data collected were subjected to statistical analysis using least significant difference (LSD). Results of the studies showed that sole application of 10 t/ha PBA and 10 t/ha WA and halved their rates in combination, increased soil pH, N, OC, P, K, Ca and Mg in relation to the control treatment. Combination of palm bunch ash (PBA) and wood ash (WA) significantly enhanced yield in fluted pumpkin (Telfairia occidentalis). The study reveals that soil acidity could be neutralized; soil fertility improved and crop yield enhanced with a combination of organic amendments on the ultisols of south-eastern Nigeria.
Metabolites of Broiler Chickens Fed Three Millet Varieties Based Diets as Replacement for Dietary Maize
Authors: Bakoshi Ahmed Mohammed , Ibrahim Abdu , Madalla Joseph
Published: September 2022

This experiment was conducted to evaluate the blood metabolites response of broiler chickens fed different millet variety-based diets as alternative feed option in broiler diets. Four experimental diets were formulated such that the diets contained pearl millet (T2), Finger millet (T3, Douro millet (T4) and the control diet (T1) contained maize. The diets were fed to Four hundred and eighty (480) Anak 2000 strain day old broiler chicks in a 56 days feeding trial. The diets were randomly assigned to four groups of 120 birds in a completely Randomized Experimental Research Design (CRD) replicated 3 times with 40 birds per replicate. Feed and water were provided ad libitum. The results obtained showed no significant differences (p<0.05) in all the parameters measured on haematological parameters. The serum biochemical indices showed that total protein (22.67-34.00), albumin (9.67-15.00), urea (0.23-0.96), creatinine (21.33-35.00), cholesterol (1.70-2.38) were significantly (p>0.05) affected by the experimental diets. Althogh, the values for glucose (9.56-9.86) and bilirubin (7.5-9.43) were statistically similar. It was concluded that Dauro and finger millet varieties can favorably replace maize in broiler diets without adverse effects on blood haematology and biochemistry of broiler chickens and thus, will help reduce the cost of broiler production especially for farmers in the millet production areas.
Survey on the Severity of Xanthomonas Axonopodis PV Malvacearum and its Management in Adamawa State, Nigeria
Authors: Tuti Nickson Zicklos
Published: September 2022

Prevalence survey on bacterial blight disease of cotton were carried out in some cotton growing locations in Adamawa State in 2018 to determine the severity of the disease in the study areas and the best combinations of cotton genotypes and plant extracts in the management of the disease. Results of the survey revealed the presence of the disease with variable percentage severities with Yola South recording the highest severity of 67.03%, followed by Guyuk (58.24%) while the least severity of 35.97% was recorded in Lamurde Local Government Area respectively. Results further showed that the combination of SAMCOT 8 cotton variety with Allium sativum as plant extract (50%) gave the best control of the disease during the study. This study has revealed the presence of the diseases in these locations with varying levels of severities. Further studies of the disease and other diseases in other locations needs to be carried out so as to determine the most effective management strategy.
Self Employment Motivation of National Youth Service Corp Members in Nigeria
Authors: Agogbua Stanley N , Mgbatogu Chukwudi D
Published: September 2022

The focus of this study was aimed at investigating effects of entrepreneurial skills acquisition on self-employment, as to redress the ills of unemployment in Nigeria. The study which was designed as a descriptive survey evaluated the mediating effects of psycho- social factors on the relationship between entrepreneurial skills acquisition and self-employment in Nigeria. Instrument for data collection was close ended questionnaire, which was designed with five options: strongly agree, agree, undecided, strongly disagree and disagree; in line with the five (5) points modified Likert scale. The instrument was tested for validity and reliability and found suitable for the study. The population of the study was Twenty-Two Thousand, Eight Hundred and Seventy Six (22,876), serving National Youth Corps members in South- East, Nigeria. Using Borg and Gall (1973) technique, sample size of Four Thousand, Four Hundred and Twelve (4412) was deduced, though the study was conducted using 4,400 copies of questionnaire that were received fully completed and usable. Data generated from the study were analyzed using descriptive statistics: tables, frequencies, percentages, graphs, pie charts and histograms. Five distinct hypotheses were formulated to guide the study, and were tested using Ordinary Least Square (OLS) regression inferential statistics, with the help of e-view, version 9. All tests were carried out at significance level of 0.05 and 10% degree of freedom (df). The study revealed that entrepreneurial skills variables: business skills, technical skills and personal entrepreneurial skills have significant positive effects on self-employment in Nigeria. The study also established that psycho- social factors (self- motivation and social influence) have significant positive effect on self-employment in Nigeria. The research concluded that with adequate effort in motivating the students and enhanced positive social influence, entrepreneurial skills acquisition will encourage nascent entrepreneurship activities and stimulate existing entrepreneurs to high performance. Hence the study recommended, among others that tertiary institutions and other entrepreneurial training centres should enrich their curriculum with business skills, technical skills, personal entrepreneurial skills, and also planned activities that will motivate students and provide positive social influence, to ensure that entrepreneurial skills acquisition generates enterprise creation and reduce the problem of unemployment in Nigeria.
Drying Studies of Oil Palm Decanter Cake for Production of Green Fertilizer
Authors: Akmal Hakim Husin  , Syahmil Hakim Hamzani  , Shahrin Hisham Amirnordin  , Mohd Faizal Mohideen Batcha  , Rafiuddin Wahidon  , Makatar Wae-hayee
Published: September 2022

The oil palm tree (Elaeis guineensis) yields palm oil from the flesh of its fruit that can be used in various industries. The extraction process produces decanter cake as one of their waste products. Drying process can be applied to the decanter cake for repurposing. The aim of this study is to determine the drying characteristics of decanter cake from the palm oil mill waste. Four thin layer drying models were used to define the drying characteristics of the decanter cake. The models are Newton model, Henderson and Pabis model, Logarithmic models and Two Term model. The samples were dried at 105°C by using convection oven, following ASTM D2974-20e1 to obtain the moisture content. Non-linear regression by using LAB Fit Curve Fitting Software was used for the statistical analysis to get the predicted data. The predicted data was compared to the experimental data carried out at three different thickness (0.3 cm, 0.5 cm and 1 cm). Coefficient of determination (R2), reduced chi-square (X2) and root mean square error (RMSE) were the statistical parameters involved. Higher R2 with lower X2 and RMSE indicates good correlation and similarities of the model prediction. Results shows that 1 cm is not suitable to be dried within three hours using mechanized dryers. From the analysis, Logarithmic model generated the best predictability for 0.3 cm and 0.5 cm thickness.
Türkiye’deki Spor Kulüplerinin Yönetsel Sorunları: Futbol Kulüpleri Örneği
Authors: BİÇER Avni Burak , ÇOLAKOĞLU Tekin , ERASLAN Ali
Published: September 2022

Bu araştırmanın amacı, Türkiye’deki profesyonel futbol kulüplerinin yönetsel sorunlarını incelemektir. Nitel araştırma yöntemlerinden olgu bilim deseninin kullanıldığı bu araştırmada, katılımcılar amaçlı örneklem yönteminden kolay ulaşılabilir yöntemi ile belirlenmiştir. Çalışmanın örneklem grubunu Ankara ilinde yer alan iki Süper Lig takımından sekiz yönetici oluşturmuştur. Ölçüm aracı olarak, araştırmacı tarafından hazırlanan yarı yapılandırılmış görüşme formu kullanılmıştır. Elde edilen veriler içerik analiziyle çözümlenmiştir. Araştırma bulgularına göre, profesyonel futbol kulüplerinin oyuncular, altyapı, menajerler, teknik direktörler, kulüpler ve taraftarlarla sorunlarının olduğu tespit edilmiştir. Sonuç olarak, Türkiye’deki futbol kulüp yöneticilerinin başarılı olabilmeleri için sportif başarının yanında birçok unsuru göz önünde bulundurması ve futbolun tüm paydaşları ile sorunlarını en iyi şekilde çözmesi gerekmektedir.
Using Bayesian Deep Learning to Infer Planet Mass from Gaps in Protoplanetary Disks
Authors: Auddy Sayantan , Dey Ramit , Lin Min-Kai , Carrera Daniel , Simon Jacob B.
Published: September 2022

Planet-induced substructures, like annular gaps, observed in dust emission from protoplanetary disks, provide a unique probe for characterizing unseen young planets. While deep-learning-based models have an edge in characterizing a planet’s properties over traditional methods, such as customized simulations and empirical relations, they lacks the ability to quantify the uncertainties associated with their predictions. In this paper, we introduce a Bayesian deep-learning network, “DPNNet-Bayesian,” which can predict planet mass from disk gaps and also provides the uncertainties associated with the prediction. A unique feature of our approach is that it is able to distinguish between the uncertainty associated with the deep-learning architecture and the uncertainty inherent in the input data due to measurement noise. The model is trained on a data set generated from disk–planet simulations using the fargo3d hydrodynamics code, with a newly implemented fixed grain size module and improved initial conditions. The Bayesian framework enables the estimation of a gauge/confidence interval over the validity of the prediction, when applied to unknown observations. As a proof of concept, we apply DPNNet-Bayesian to the dust gaps observed in HL Tau. The network predicts masses of 86.0 ± 5.5 M
⊕, 43.8 ± 3.3 M
⊕, and 92.2 ± 5.1 M
⊕, respectively, which are comparable to those from other studies based on specialized simulations.
Interpreting the Observed Positive Correlation between the Event-integrated Fluence and the Rollover Energy of Solar Energetic Particle Events by the PAMELA Mission with Coupled Hydromagnetic Wave Excitation and Proton Acceleration at Shocks in the Low Corona
Authors: Li G. , Bruno A. , Lee M. A. , Lugaz N. , de Nolfo G. A. , Ryan J. M.
Published: September 2022

An analytical model for diffusive shock acceleration (DSA) at one-dimensional stationary planar shocks in the lower corona is presented. The model introduces an upstream escape boundary through which a constant flux of protons streaming upstream out of the system is allowed. The nonvanishing flux of streaming protons out of the system limits the maximum attainable energy of DSA and produces a rollover in the high-energy spectra of the shock-accelerated protons. The condition for the rollover energy derived from the model can account for the approximately linear relation between the natural logarithm of event-integrated fluences and the natural logarithm of rollover energies as demonstrated in Bruno et al. Solar energetic particle (SEP) events with higher integrated fluences in principle exhibit higher rollover energies since proton-excited hydromagnetic waves in the turbulent sheath reduce the proton diffusion coefficient and throttle the upstream streaming of protons. The consistency between the observation and the theory of DSA at shocks in the lower corona serves as evidence for the shock origin of protons of the highest energies in large SEP events.
Discovery of a new limestone karst-restricted odorous frog from northern Guangdong, China (Anura, Ranidae, Odorrana)
Authors: Lin Shi-Shi , Li Yuan-Hang , Su Hong-Lin , Yi Hui , Pan Zhong , Sun Yan-Jun , Zeng Zhao-Chi , Wang Jian
Published: September 2022

Karstic landscapes play an important role in biodiversity formation and often contain high levels of endemism. However, site-endemic taxa in karstic landscapes are being threatened by exploitation and weak legal protection. In this study, we describe Odorrana concelata Wang, Zeng, & Lin, sp. nov., a limestone karst-restricted odorous frog from northern Guangdong, China. This new species shows distinctive genetic divergence and morphological differences from its congeners. Phylogenetic results suggest that the new species represents an independent lineage that is grouped with O. lipuensis and O. liboensis based on the mitochondrial 16S and 12S ribosomal RNA genes. We recommend the new species be listed as Vulnerable (VU) in the IUCN categorization as it is only known from the type locality with limited microhabitats and is threatened by habitat degradation.
Integrative taxonomy of the leaf-beetle genus Gonioctena Chevrolat, 1836 in Taiwan (Coleoptera, Chrysomelidae, Chrysomelinae, Gonioctenini) reveals new synonymies and one new species
Authors: Lee Chi-Feng , Hsieh Chia-Hung
Published: September 2022

Taiwanese species of Gonioctena are revised based on morphological, molecular, and ecological information. Gonioctena subgeminata (Chen, 1934), G. tredecimmaculata (Jacoby, 1888), G. kamikawai (Chûjô, 1958), and G. osawai Kimoto, 1996 are redescribed. The study confirms that Phytodecta tredecimmaculatus var. taiwanensis Achard, 1924 should be considered a junior synonym of G. tredecimmaculata (Jacoby, 1888), along with two new junior synonyms, G. ohmomoiCho et al. 2016 (syn. nov.) and G. riyuetanensisCho et al. 2016 (syn. nov.). Phytodecta (Asiphytodecta) issikii Chûjô, 1958 (syn. nov.) is treated as a junior synonym of Gonioctena scutellaris Baly, 1862, which is removed from synonym with G. fulva (Motschulsky, 1861) (stat. rev.) and redescribed. Gonioctena thoracica Baly, 1862 (syn. nov.), G. dichroa Fairmaire, 1888 (syn. nov.), and G. foochowensis Gruev, 1989 (syn. nov.) are proposed as junior synonyms of G. scutellaris Baly, 1862. A new species, G. liuisp. nov., is described and differentiated ecologically from G. scutellaris. Gonioctena nigroplagiata Baly, 1862 is newly recorded from Matsu Islands and redescribed. Host plants and biological information are provided for all Taiwanese species. Lectotypes are designated for G. scutellaris Baly, 1862, G. thoracica Baly, 1862, and G. nigroplagata Baly, 1862.
Des jeunes face à des violences institutionnelles
Authors: Dargère Christophe , Collin Jonathan
Published: September 2022

Les auteurs explorent la violence institutionnelle ayant cours dans des organisations proposant un accompagnement socio-éducatif ou dans le cadre de la ronde journalière de jeunes individus stigmatisés sur la base de leur couleur de peau. Les éléments proposés confirment ou révèlent des violences que porte le fonctionnement de différentes institutions, par leurs manquements et l’action ou l’abstention de certains membres de leur personnel. L’analyse des situations sociales proposées vise tout autant à éclairer les processus à l’œuvre qu’à permettre de penser l’action sociale.
Faire sentir la confiance. Croyance, confiance et émotion dans l’activité éducative
Authors: Mezzena Sylvie
Published: September 2022

La confiance dans l’activité des éducateurs est questionnée dans la relation éducative avec des jeunes en foyer. Le phénomène est abordé depuis une perspective pragmatiste de la confiance en lien avec la croyance et l’action indéterminée. Comment les éducateurs et les jeunes travaillent ensemble à construire la confiance, puisque comme notre expérience nous l’apprend, elle ne se décrète pas. Cette construction de la confiance exige un « faire sentir » la confiance dans lequel interviennent les émotions.
Introducing the special issue ‘Insects on the monogastric menu’
Authors: Veldkamp T. , Schiavone A. , Gasco L.
Published: September 2022

Interest in insects as feed ingredients in poultry, swine and rabbit is growing rapidly. The protein fraction has been studied most, but research on other nutrients from insects and a deeper understanding of beneficial aspects of the use of insects is gaining traction. Since September 2021 it is legally allowed to include insect proteins in feed for poultry and pigs and the number of publications on applications of insect products in these livestock animals is increasing. Publishing open access ensures the engagement of all stakeholders in the insect chain and parties involved in using the end products in animal feed. For this reason, the Journal of Insects as Food and Feed has composed an open access special issue focussing on applications of insect products in monogastric animal nutrition. The special issue touches on aspects related to nutrition, health, welfare, safety, socio-economic and consumer issues.
New results on a coupled system for second-order pantograph equations with $ \mathcal{ABC} $ fractional derivatives
Authors: Ali Saeed M. , Abdo Mohammed S. , Sontakke Bhausaheb , Shah Kamal , Abdeljawad Thabet
Published: September 2022

The aim of this paper is to demonstrate a coupled system of second-order fractional pantograph differential equations with coupled four-point boundary conditions. The proposed system involves Atangana-Baleanu-Caputo ($ \mathcal{ABC} $) fractional order derivatives. We prove the solution formula for the corresponding linear version of the given system and then convert the system to a fixed point system. The existence and uniqueness results are obtained by making use of nonlinear alternatives of Leray-Schauder fixed point theorem, and Banach's contraction mapping. In addition, the guarantee of solutions for the system at hand is shown by the stability of Ulam-Hyers. Pertinent examples are provided to illustrate the theoretical results.
New analytical method of solution to a nonlinear singular fractional Lane–Emden type equation
Authors: Omaba McSylvester Ejighikeme
Published: September 2022

We consider a nonlinear singular fractional Lane–Emden type differential equation

   \begin{document}$ {}^{LC}\mathcal{D}^\alpha_{a^+}\varphi(t)+\frac{\lambda}{t^{\alpha-\beta}}\, \, {}^{LC}\mathcal{D}^\beta_{a^+}\varpi(t, \varphi(t)) = 0, \, \, 0<\beta<\alpha<1, \, \, 0< a<t\leq T, $\end{document}

with an initial condition $ \varphi(a) = \nu $ assumed to be bounded and non-negative, $ \varpi:[a, T]\times\mathbb{R}\rightarrow \mathbb{R} $ a Lipschitz continuous function, and $ {}^{LC}\mathcal{D}^\alpha_{a^+}, {}^{LC}\mathcal{D}^\beta_{a^+} $ are Liouville–Caputo derivatives of orders $ 0 < \alpha, \beta < 1 $. A new analytical method of solution to the nonlinear singular fractional Lane–Emden type equation using fractional product rule and fractional integration by parts formula is proposed. Furthermore, we prove the existence and uniqueness and the growth estimate of the solution. Examples are given to illustrate our results.
A computational study of a stochastic fractal-fractional hepatitis B virus infection incorporating delayed immune reactions via the exponential decay
Authors: Qurashi Maysaa Al , Rashid Saima , Jarad Fahd
Published: September 2022

Recently, researchers have become interested in modelling, monitoring, and treatment of hepatitis B virus infection. Understanding the various connections between pathogens, immune systems, and general liver function is crucial. In this study, we propose a higher-order stochastically modified delay differential model for the evolution of hepatitis B virus transmission involving defensive cells. Taking into account environmental stimuli and ambiguities, we presented numerical solutions of the fractal-fractional hepatitis B virus model based on the exponential decay kernel that reviewed the hepatitis B virus immune system involving cytotoxic T lymphocyte immunological mechanisms. Furthermore, qualitative aspects of the system are analyzed such as the existence-uniqueness of the non-negative solution, where the infection endures stochastically as a result of the solution evolving within the predetermined system's equilibrium state. In certain settings, infection-free can be determined, where the illness settles down tremendously with unit probability. To predict the viability of the fractal-fractional derivative outcomes, a novel numerical approach is used, resulting in several remarkable modelling results, including a change in fractional-order $ \delta $ with constant fractal-dimension $ \varpi $, $ \delta $ with changing $ \varpi $, and $ \delta $ with changing both $ \delta $ and $ \varpi $. White noise concentration has a significant impact on how bacterial infections are treated.
Discrete stage-structured tick population dynamical system with diapause and control
Authors: Yu Ning , Zhang Xue
Published: September 2022

A discrete stage-structured tick population dynamical system with diapause is studied, and spraying acaricides as the control strategy is considered in detail. We stratify vector populations in terms of their maturity status as immature and mature subgroups. The immature subgroup is divided into two categories: normal immature and diapause immature. We compute the net reproduction number $ R_0 $ and perform a qualitative analysis. When $ R_0 < 1 $, the global asymptotic stability of tick-free fixed point is well proved by the inherent projection matrix; there exists a unique coexistence fixed point and the conditions for its asymptotic stability are obtained if and only if $ R_0 > 1; $ the model has transcritical bifurcation if $ R_0 = 1. $ Moreover, we calculate the net reproduction numbers of the model with constant spraying acaricides and periodic spraying acaricides, respectively, and compare the effects of the two methods on controlling tick populations.
Replacement of hydrated lime by lime mud-residue from the cellulose industry in multiple-use mortars production
Authors: Sangi-Gonçalves H. , Penteado-Dias D. , Castillo-Lara R.
Published: September 2022

The pulp and paper industry increases every year in Brazil, providing an important country position in international market due to its production volume. However, because of this increasing, a large volume of wastes is generated. One of them is a lime mud, resulting from the Kraft chemical pulping production process. Thus, the aim of this study was to evaluate the replacement of hydrated lime by lime mud on laying and coating mortars production, in order to verify its feasibility for possible application in civil construction industry. The 100% hydrated lime replacement mortar reached a 28-day compressive strength of 5.84 MPa. Finally, the results obtained in the experimental program showed that the 100% hydrated lime replacement mortar by lime mud meets the normative requirements for multiple-use mortars.
Corn Disease Detection Based on an Improved YOLOX-Tiny Network Model
Authors: Li Shanni , Yang Zhensheng , Nie Huabei , Chen Xiao
Published: September 2022

In order to detect corn diseases accurately and quickly and reduce the impact of corn diseases on yield and quality, this paper proposes an improved object detection network named YOLOX-Tiny, which fuses convolutional attention module (CBAM), mixup data enhancement strategy, and center IOU loss function. The detection network uses the CSPNet network model as the backbone network and adds the CBAM to the feature pyramid network (FPN) of the structure, which re-assigns the feature maps' weight of different channels to enhance the extraction of deep information from the structure. The performance evaluation and comparison results of the methods show that the improved YOLOX-Tiny object detection network can effectively detect three common corn diseases, such as cercospora grayspot, northern blight, and commonrust. Compared with the traditional neural network models (90.89% of VGG-16, 97.32% of YOLOv4-tiny, 97.85% of YOLOX-Tiny, 97.91% of ResNet-50, and 97.31% of Faster RCNN), the presented improved YOLOX-Tiny network has higher accuracy.
Improvement of Segmentation Efficiency in Mammogram Images Using Dual-ROI Method
Authors: Tammineedi Venkata Satya Vivek , C. Raju , D. Girish Kumar , Yalla Venkateswarlu
Published: September 2022

Mammogram segmentation utilizing multi-region of intrigue is a standout amongst the most rising exploration territory in the medical image analysis. The steps engaged with the research are grouped into two kinds: 1) segmentation of mammogram images and 2) extraction of texture features from mammogram images. To overcome these difficulties, a compelling technique is proposed in this paper that comprises of three phases. In the principal arrangement, mammogram images from INbreast database are selected and improved utilizing Laplacian filtering. At that point, the pre-processed mammogram images are utilized for segmentation utilizing modified adaptively regularized kernel-based fuzzy C means (M-ARKFCM). After segmentation, statistical texture FE is connected for recognizing the patterns of cancer and non-cancer regions in mammogram images. Finally, the experimental outcome demonstrated that the proposed approach enhanced the segmentation efficiency by methods of statistical parameters contrasted with the existing operating procedures.
Assessing spatial patterns of HIV prevalence and interventions in semi-urban settings in South Africa. Implications for spatially targeted interventions
Authors: Chimoyi Lucy , Matsena-Zingoni Zvifadzo , Charalambous Salome , Marinda Edmore , Manda Samuel , Musenge Eustasius
Published: September 2022

Equitable allocation of resources targeting the human immunodeficiency virus (HIV) at the local level requires focusing interventions in areas of the greatest need. Understanding the geographical variation in the HIV epidemic and uptake of selected HIV prevention and treatment programmes are necessary to identify such areas. Individual-level HIV data were obtained from a 2012 national HIV survey in South Africa. Spatial regression models on each outcome measure (HIV infection, sub-optimal condom use or non-anti-retroviral treatment (ART) adjusted for spatial random effects at the ward level were fitted using WINBUGS software. In addition, ward-level data was utilized to estimate condom use coverage and ART initiation rates which were obtained from routinely collected data in 2012. Ordinary Kriging was used to produce smoothed maps of HIV infection, condom use coverage and ART initiation rates. HIV infection was associated with individuals undertaking tertiary education [posterior odds ratio (POR): 19.53; 95% credible intervals (CrI): 3.22- 84.93]. Sub-optimal condom use increased with age (POR: 1.09; 95%CrI: 1.06-1.11) and was associated with being married (POR: 4.14; 95%CrI: 1.23-4.28). Non-ART use was associated with being married (POR: 6.79; 95%CrI: 1.43-22.43). There were clusters with high HIV infection, sub-optimal condom use, and non- ART use in Ekurhuleni, an urban and semi-urban district in Gauteng province, South Africa. Findings show the need for expanding condom programmes and/or strengthening other HIV prevention programmes such as pre-exposure prophylaxis and encouraging sustained engagement in HIV care and treatment in the identified areas with the greatest need in Ekurhuleni Metropolitan Municipality.
Global Antimicrobial Resistance and Use Surveillance System on the African continent: Early implementation 2017–2019
Authors: Tornimbene Barbara , Eremin Sergey , Abednego Reuben , Abualas Elamin O. , Boutiba Ilhem , Egwuenu Abiodun , Fuller Walter , Gahimbare Laetitia , Githii Susan , Kasambara Watipaso , Lukwesa-Musyani Chileshe , Miamina Fidy A. , Mtapuri-Zinyowera Sekesai , Najjuka Grace , Perovic Olga , Zayed Bassem , Ahmed Yahaya A. , Ismail Maha T. , Pessoa da Silva Carmem L.
Published: September 2022

Background: Antimicrobial resistance (AMR) is becoming a critical public health issue globally. The World Health Organization launched the Global Antimicrobial Resistance and Use Surveillance System (GLASS) to support the strengthening of the AMR evidence base.Objective: The article describes the evolution of national AMR surveillance systems and AMR data reporting of countries in the African continent between 2017 and 2019, and the constraints, perceived impact and value of the participation in GLASS.Methods: Data on implementation of national surveillance systems and AMR rates were submitted to GLASS between 2017 and 2019 and summarised though descriptive statistics. The information on constraints and perceived impact and value in GLASS participation was collected though a set of questionnaires.Results: Between 2017 and 2019, Egypt, Ethiopia, Madagascar, Malawi, Mali, Mozambique, Nigeria, South Africa, Sudan, Tunisia, Uganda and Zambia submitted data to GLASS. The main constraints listed are linked to scarce laboratory capacity and capability, limited staffing, budget issues, and data management. Moreover, while the data are not yet nationally representative, high resistance rates were reported to commonly-used antibiotics, as the emerging resistance to last treatment options.Conclusion: Despite the limitations, more and more countries in the African continent are working towards reaching a status that will enable them to report AMR data in a complete and systematic manner. Future improvements involve the expansion of routine surveillance capacity for several countries and the implementation of surveys that allow to effectively define the magnitude of AMR in the continent.
Provision and use of physical rehabilitation services for adults with disabilities in Rwanda: A descriptive study
Authors: Kumurenzi Anne , Richardson Julie , Thabane Lehana , Kagwiza Jeanne , Musabyemariya Ines , Bosch Jackie
Published: September 2022

Background: Physical rehabilitation interventions address functional deficits caused by impairments that affect someone’s performance. Whilst rehabilitation is important, it is assumed that these services are either minimal or nonexistent in low-resource settings. Our data expand on the data from the Situation Assessment of Rehabilitation in the Republic of Rwanda report to describe rehabilitation services and who access them at public and semiprivate facilities (primarily funded by the private sector).Objectives: This article describes the use of the outpatient physical rehabilitation services across nine health facilities, the characteristics of adults attending these health facilities and some of the facilitators and barriers they encounter when attending rehabilitation.Method: Data were collected between September and December 2018 from the heads of departments and adult patients attending outpatient rehabilitation services funded by the government, international nongovernmental organisations or faith-based organisations.Results: Two hundred and thirteen adults were recruited from nine facilities. There is a sixfold difference in the number of rehabilitation personnel between public and semiprivate hospitals in these facilities’ catchment areas. However, most participants were recruited at public facilities (186 [87%]), primarily with physical disorders. Patients reported that family support (94%) was the most crucial facilitator for attending rehabilitation, whilst transportation cost (96%) was a significant barrier.Conclusion: Rehabilitation service availability for Rwandan adults with disabilities is limited. Whilst family support helps patients attend rehabilitation, transportation costs remain a significant barrier to people attending rehabilitation. Strategies to address these issues include developing triage protocols, training community health workers and families.Contribution: Data on rehabilitation service provision in Rwanda and most African countries are either non-existent or very limited. These data contain important information regarding the services provided and the people who used them across different health facilities (public versus private) and urban versus rural settings). To improve rehabilitation service provision, we first need to understand the current situation. These data are an important step to better understanding rehabilitation in Rwanda.
Analysing the impact of COVID-19 trade disruptions on port authority pricing and container shipping in South Africa
Authors: Grater Sonja , Chasomeris Mihalis G.
Published: September 2022

Background: The coronavirus disease 2019 (COVID-19) pandemic directly affected the shipping industry globally, and South Africa experienced decreased cargo volumes and increased freight rates. In addition, National Ports Authority (NPA) charges are 69% and cargo dues 166% above the global benchmark mean. The NPA uses a rate of return (RR) model to calculate tariff increases that are contested by port stakeholders.Objectives: The study aimed to analyse the impact of COVID-19 trade disruptions and examine the associated higher liner freight rates, tariff applications for higher NPA tariffs and reduced investment in port infrastructure. It showed that adjusting the RR model variables can result in reduced tariffs and large cost savings for port users.Method: This study analysed the impact of the pandemic on South Africa’s cargo volumes and freight rates. It critiqued the regulatory asset base, the asset beta, and the tax rate to be applied and calculated the adjustments to these RR model variables using five scenarios for FY2022/2023.Results: The results show a sharp decrease in cargo volumes during COVID-19 lockdowns, and a parallel increase in freight rates. The five-scenario results show how the NPA tariffs could be much lower, calculating a tariff decrease of 5.7% in scenario 4 and a 20% decrease in scenario 5.Conclusion: Amid the global rise of shipping rates and the economic impact of the pandemic on South Africa’s trade, the results show that there is a potential to enhance South Africa’s trade competitiveness through a decrease in NPA-weighted average tariff by 20%.
Speech–language therapy educator reflections on the planning and implementation of education and training during the COVID-19 pandemic
Authors: Naidoo Urisha , Flack Penelope S. , Rathiram Vrinda , Moodley Legini , Karrim Saira B. , Buthelezi Nomfundo , Ndanganeni Vuledzani
Published: September 2022

Background: Universities across the world experienced lockdown and closure of all learning institutions around March 2020 because of the advent of the coronavirus disease 2019 (COVID-19). This lockdown and closure presented challenges to the traditional pedagogical approaches in the health sciences, which typically include both campus-based and clinical site-focused activities involving face-to-face interactions and work integrated learning. The onset of the COVID-19 pandemic resulted in a shift to emergency remote teaching (ERT) and learning.Objectives: This study aimed to explore speech–language pathology (SLP) educators’ experiences of the planning and implementation of ERT and learning during the COVID-19 pandemic.Method: A qualitative, descriptive narrative design was adopted to meet the objectives of the study. Seven SLP educators from a single university in South Africa participated in this study by constructing narratives on their experiences. The narratives were analysed using thematic analysis.Results: Five themes emerged from the data analysis, and these included (1) uncertainty, (2) educator feelings, (3) capacity development, (4) influence of circumstances on teaching, learning and assessment and (5) troubleshooting. Current findings provide insight into the challenges encountered and strategies utilised by educators in planning and implementing ERT and learning.Conclusion: Beyond the COVID-19 pandemic, most educators believe that a hybrid model would address some concerns identified, such as that of missing face-to-face contact, but that it would still allow for the full exploitation of online activities for teaching, learning and assessment required during clinical training.