bluuebunny/crossref_metadata_2025 huggingface dataset:
The effect of addition of MWCNTs nanoparticles to CryoMQL conditions on tool wear patterns, tool life, roughness and temperature in turning of Ti-6Al-4V.
Authors: Wang Ben , Kong Xianjun
Published: February 2022

In recent years, advancements in the field of nanotechnology have actively been reflected in the manufacturing industry, particularly in the production of aviation components, ships, and medical devices. However, titanium alloys have low thermal conductivity, making them difficult to cut at high temperatures. The traditional processing method is not only inefficient, but can also cause serious harm to the environment and operators. In this paper, multi-walled carbon nanotubes were used as additives to disperse into degradable vegetable oil as a green cutting fluid. This green cutting fluid was cooled to analyze the processing of a titanium alloy (LN2 + Nano-MQL (0.6%)). Cutting experiments were carried out under dry, MQL, LN2, LN2 + MQL, and LN2 + Nano-MQL (0.6%) conditions. The temperature of the machining area, tool wear process, tool wear mechanism, surface roughness, and surface morphology were studied. The results show that the cutting-zone temperature is reduced by 65.1%, the tool life is prolonged by 30%, and the surface roughness is reduced by 48.1% under LN2 + Nano-MQL (0.6%) in comparison to the dry condition. The cutting environment supported by MQL is conducive to inhibiting the formation of craters. Element detection confirmed that the tool coating was well protected under the condition of LN2 + Nano-MQL (0.6%). In addition, the tool nose wear is small under the LN2 + MQL and LN2 + Nano-MQL (0.6%) conditions.
Relationships of seven N6-methyladenosine regulators with the tumor microenvironment and tumor immune infiltrating cells
Authors: Dong Ouyang , Limin Luo , Lifeng Li , Yu Zhao
Published: February 2022

Background: N6-methyladenosine (m6A) modification plays key roles in tumor cell proliferation, invasion and immune escape, but the function of m6A modification in the tumor immune microenvironment and immunotherapy remain poorly understood.Methods: We researched the expression of seven m6A regulators (METTL3, WTAP, FTO, ALKBH5, ZC3H13, YTHDF1, YTHDF2) and their associations with prognosis using The Cancer Genome Atlas pan-cancer dataset. Further, we explored the relationships between expression of these m6A regulators and tumor mutation burden (TMB), microsatellite instability (MSI), stemness score, drug sensitivity, and immune subtype. Additionally, the association of these m6A regulators with the tumor microenvironment, immune-related gene expression, and tumor immune cell infiltration characteristics were systematically analyzed in pan-gynecological cancer. Results: The evaluated m6A regulators exhibited striking prognostic heterogeneity in the pan-cancer dataset. Moreover, expression levels of the m6A regulators were correlated with stemness score, MSI, and TMB in various types of cancer. METTL3, ZC3H13, FTO, and YTHDF1 were highly expressed in immune subtype C5 (immunologically quiet). In pan-gynecological cancers, m6A regulator expression was clearly correlated with stromal score, immune score, immune gene expression, and tumor immune infiltrating cells. Further, ZC3H13 expression was strongly correlated with tumor immune cell infiltration, and positively correlated with selumetinib, trametinib, hypothemycin, vemurafenib, dabrafenib, and cobimetinib drug sensitivity.Conclusions: In gynecological cancers, there are striking relationships between m6A regulator expression and the tumor microenvironment, immune genes, and tumor immune cell infiltration. These findings provide prospects for further investigation of m6A regulators as potential cancer therapeutic targets.
A community-based survey on COVID-19 Knowledge, Attitudes, Practices and Vaccination Hesitance in Moshi, Kilimanjaro Region, Northern Tanzania
Authors: Chilongola Jaffu , Rwegoshola Kevin , Semvua Hadija , Kwigizile Edith
Published: February 2022

Background: The development of COVID-19 vaccinations has reignited optimism in many cultures devastated by the pandemic's tremendous loss of lives and livelihoods. Vaccination hesitancy (VH) is a critical and growing international problem in the global effort to manage the COVID-19 pandemic. To successfully handle VH concerns, it is necessary to understand the levels of knowledge, attitudes, and behaviours on COVID-19. The purpose of this study was to collect data on COVID-19 knowledge, behaviours, and attitudes as an illness, as well as COVID-19 vaccine.Methods: In October 2021, a cross-sectional research with 232 participants was undertaken. A standardized interviewer-administered questionnaire was used to collect data. The majority of respondents in the present survey heard about COVID-19 between January and March 2020. Social media, news media, and news papers are the most effective sources of information on COVID-19, reaching 34.48% of the population. Basic COVID-19 knowledge was reported to be moderate. Nearly half of the respondents (48.3%) thought SARSCOV-2 was man-made, while 36.21% were unsure. Good preventive behaviours were indicated by 49.14% of subjects. Overall, we find that around 65% of people are reluctant to get vaccinated against COVID-19. Male gender, low education, and occupation (teachers, health care workers, and students) were shown to be more hesitant about vaccination. In this study, healthcare workers (HCWs) were averse to get COVID-19 vaccine. The reasons for vaccination hesitation were "unknown safety" of the vaccines (17.4%) and "unknown long term consequences" of the vaccines (18.97%). Almost a third (27.59%) of those interviewed said they had no intention of being vaccinated.Conclusion: We report moderate knowledge on COVID-19, as well as effective preventive practices, but negative attitudes regarding COVID-19 vaccination, resulting in low vaccination rates of 6.9%. Misinformation regarding COVID-19 appears to play a key role in vaccination reluctance.
A model for optimal economic lockdown to contain epidemic
Authors: Tognoli Marco
Published: February 2022

The paper describes a Boolean linear programming model to deal with the problem of selecting several economic sectors to be shutdown. The objective function is linear and the constraints are linear inequalities related to the Leontief’s input-output table.The model permits to analyze the feasibility of national economic system in which some elements of the input-output table are setequal to zero.In "On the structure of linear models" at the begining of paragraph X-the Topology of linear systems, Robert Solow wrote properties of being decomposable or indecompasable, acyclic or cyclic are topologica in nature. He means that indecomposablility is basically a property of connectedness.As a consequence, in order to test if a square matrix is decomposable, one can replace its aij elements by 1 and 0, this technique is in use in the analysis of networks.This is what I done to investigate the impact originated by the interruption of several activity as a consequence of a government measure adopted to reduce the risk of contagion.On the other hand, the model can be of support in assigning priorities to sectors which can begradually reopened as the spread of the virus decreases. As observed, a large Lagrange multiplier corresponds to a sector which is relevant in terms of its interdependencies.The model recommends for opening before the closed sectors with large Lagrange multipliers.The present study distinguishes for two aspects. First, linear programming techniques have been widely used in Input-Output model: from the primary and dual formulation of the problem to the analysis of Lagrange multipliers in order to assess the mutual relative importance of sectors.Second, the impact of lockdown is measured in terms of annihilated interdependencies rather than in terms of canceled economic values such as revenues and monetary exchanges. For this reason, the proposed model takes into account the adjacency matrix got from input-output Table rather than the Table itself. This analysis is static in character (it is a static I-O model) because it does not take care explicitly of time, quantity and price reactions, consumption and production lags, growth of final demand (these ones are known as dynamic I-O models). The study simply considers the interruption of several activity as a consequence of a government measure adopted to reduce the risk of contagion.The proposed model answers to the basic question if the annihilation of N sectors is feasible, secondary the model identifies in the Lagrange multipliers the means to sequencing the sectors to be reopened.
LINEAR VISCOELASTIC MODEL OF BORASSUS WOOD: RHEOLOGICAL PARAMETERS
Authors:   Laboratoire dEnergetique Et De Mecanique Appliquee (LEMA) - EPAC - Benin., Michozounnou Robert ,   Laboratoire De Materiaux Et Structures (LAMS) - ESGC Verechaguine A.K. - Benin., K. Doko Valery ,   Laboratoire dEnergetique Et De Mecanique Appliquee (LEMA) - EPAC - Benin.,   Laboratoire De Materiaux Et Structures (LAMS) - ESGC Verechaguine A.K. - Benin., K. Houanou Agapi ,   Laboratoire dEnergetique Et De Mecanique Appliquee (LEMA) - EPAC - Benin., L. Gbaguidi Aisse Gerard ,   Laboratoire dEnergetique Et De Mecanique Appliquee (LEMA) - EPAC - Benin.,   Laboratoire De Materiaux Et Structures (LAMS) - ESGC Verechaguine A.K. - Benin., E. Foudjet Amos ,   CRESA Foret - Bois, Universite De Dschang, Cameroun., Vianou Antoine ,   Laboratoire dEnergetique Et De Mecanique Appliquee (LEMA) - EPAC - Benin.
Published: February 2022

The aim of the presentworkis to study the viscoelastic model of Borassus Aethiopum Mart whichis relevant for the characterisation of a Borassus Pre-stressedConcretebeam. Mechanical tests werecarried out mainly the creep test on typical Borassus Aethiopum Mart specimensfrom the Pahou-Ahozon forestgallery in southern Benin, Africa, subjected to a constant bending stress along the beam. The moisture content of the specimensis set at 12% and isobtained by kilndrying at ATC du Bois. The loadinglevel of the specimensis set at 20% of the failureload. A methodologystartingfrom the determination of the compressive and bending stresses of Borassus Aethiopum Mart for the identification of the optimal values of the dynamicelasticmodulus E and the dynamicviscosity constant ÃŽÂ· of Borassus Aethiopum Mart with the non-linear least squares methodapplied to the Kelvin Voigt rheological model. The instantaneousmodulus of elasticity E0 wasdeterminedfromHookeslaw. A series of validation tests wereperformed on the numerical model. Finally, a comparison of the numerical model with the rheologicalrepresentationconfirmed the previousresults.
POROCARCINOMA A CASE REPORT AND REVUE OF LITERATURE
Authors:   Plastic Surgery Department, Mohammed VI University Hospital Marrakech., Elatiqi O. , Aitbenlassal O. ,   Plastic Surgery Department, Mohammed VI University Hospital Marrakech., Elamrani M.D ,   Plastic Surgery Department, Mohammed VI University Hospital Marrakech., Benchamkha Y. ,   Plastic Surgery Department, Mohammed VI University Hospital Marrakech., Benhomad M. ,   ENT Department, Mohammed VI University Hospital Marrakech., Rochdi Y. ,   ENT Department, Mohammed VI University Hospital Marrakech., Raji A. ,   ENT Department, Mohammed VI University Hospital Marrakech.
Published: February 2022

Eccrinporocarcinoma is a rare and very aggressive skin tumor, we presented a case of a 64 years old male patient, with long history of a benign left retroauriculaire lesion changing of aspect one year ago, biopsy talked about an adnexal tumor, after total resection the diagnosis of porocarcinoma was taken.
FACTEURS PRONOSTIQUES INFLUENCANT LA FONCTION SEXUELLE POSTOPERATOIRE APRES FRACTURE DU CORPS CAVERNEUX
Authors:   Service dUrologie, CHU Mohamed VI Marrakech, Maroc., Aarab Mouaad , Allali Rachid ,   Service dUrologie, CHU Mohamed VI Marrakech, Maroc., Ait Ouali Rachid ,   Service dUrologie, CHU Mohamed VI Marrakech, Maroc., Kamar Chamchi Younes ,   Service dUrologie, CHU Mohamed VI Marrakech, Maroc., Amine Lakmichi Mohamed ,   Service dUrologie, CHU Mohamed VI Marrakech, Maroc., Dahami Zakaria ,   Service dUrologie, CHU Mohamed VI Marrakech, Maroc., Said Moudouni Mohamed ,   Service dUrologie, CHU Mohamed VI Marrakech, Maroc., Sarf Ismail ,   Service dUrologie, CHU Mohamed VI Marrakech, Maroc.
Published: February 2022

La fracture de la verge est une urgence urologique rare, elle survient essentiellement chez le sujet jeune. Letiologie la plus frequemment rapporte au Moyen-Orient et au pays de lAfrique du nord est la manipulation forcee de la verge en erection. La prise en charge doit etre en urgence pour prevenir les complications qui peuvent compromettre la fonction sexuelle ulterieure. Le but de notre travail est de determiner les facteurs pronostiques influenÃƒÂ§ant la fonction sexuelle postoperatoire. Nous avons mene une etude analytique sur 62 patients operes pour fracture des corps caverneux dans notre service entre Janvier 2015 et Janvier 2021.La fonction sexuelle a ete evaluee par trois parametres 6 mois apres lintervention : La dysfonction erectile (DE), la presence de douleur lors des rapports sexuels et lincurvation de la verge. En postoperatoire, le taux de DE (IEEF5<20) etait de 16,1%, dincurvation de la verge de 12,9 % et seulement 9,6 % des patients ont rapporte la notion de rapports sexuels douloureux. A lanalyse multivariee, le DE etait liee au delai de consultation (p =0,04) et au siege proximal de la fracture (p =0,02). Lincurvation de la verge etait liee aussi au delai de consultation (p =0,056), au siege proximal de la fracture (p =0,033) et a lincision elective (p =0,03). Par contre aucun facteur netait lie aux rapports sexuels douloureux. Notre etude a demontre quune prise en charge precoce ameliore la fonction sexuelle postoperatoire, qui depend aussi du siege de la fracture et de la technique operatoire.
MODAL DISPERSION CURVES OF A METAL COATED OPTICAL WAVEGUIDE WITH TREFOIL CROSS-SECTION UNDER WEAK GUIDANCE APPROXIMATION
Authors:   Associate Professor, Department of Physics, Sri J.N.P.G. College University of Lucknow, Lucknow., Sharma Alka
Published: February 2022

In this paper the author investigated a special type of core cross-section bounded by metallic boundary. In this structure three cores embedded in a common metallic boundary. Characteristic equation in derived for the guided modes under weak guidance approximation by choosing an appropriate coordinate system. This study in done by using analytical method. From the characteristic equation, dispersion curves are obtained and interpreted.
NSPASES: CAN THOSE EXOGENOUS ENZYMES REALLY CONSTITUTE NATURAL GROWTH COFACTORS IN BROILER CHICKENS?
Authors:   Unit of Avian Pathology, Department of Veterinary Pathology and Public Health. Agronomy and Veterinary Medicine Institute Hassan II, Rabat, Morocco., Derqaoui Sophia , Oukessou Mohammed ,   Unit ofPhysiology and Therapeutics, Department of Veterinary Biological and Pharmaceutical Sciences. Agronomy and Veterinary Medicine Institute Hassan II, Rabat, Morocco., Nassik Saadia ,   Unit of Avian Pathology, Department of Veterinary Pathology and Public Health. Agronomy and Veterinary Medicine Institute Hassan II, Rabat, Morocco.
Published: February 2022

In the quest to improve public and animal health, white meat is considered to be one of the major causes of antibioresistance identified in medicine, through uncontrolled use of antibiotics in poultry farming as growth promoters (GPA). Thus, this use needs to be reconsidered at large scale. This reconsideration involves the substitution of GPAs by natural alternatives, particularly enzymes degrading non-starch polysaccharides (NSPases) which will allow:1) modulation of the intestinal microbiota, to attenuate the anti-nutritional effects of insoluble NSPs, 2)reduction of the non-digested portion of the substrate and 3) improvement of the zootechnical performance of the chicken. Non-starch polysaccharides contain two main families, namely: water-insoluble NSPs including cellulose and partially water-soluble NSPs. However, despite the fact that these components constitute the major part of cereal dietary fiber, they have an anti-nutritional effect associated with the viscous nature of these polysaccharides and their interaction with the intestinal microflora due to the fact that poultry does not produce enough endogenous enzymes to hydrolyze NSPs. The use of NSPases produced mainly by fungi and bacteria allows counterbalancing the anti-nutritional properties of dietary fibers by increasing the digestibility of starch and improving the zootechnical performance of broilers, particularly the conversion index.Thus, this literature review aims to shed light on the effects of NSPases on the zootechnical parameters of chickens, the intestinal microflora as well as on nutritional digestibility in order to use them as alternatives to GPAs and limit the aggravation of the phenomenon of antibioresistance. This approach is therefore, part of the world famous concept of one world one health and which applies to the design and implementation of programs, policies, legislations and research for which several sectors communicate and collaborate to improve public health outcomes.
EFFECTS OF AQUEOUS EXTRACT OF DISSOTIS BRAZZEI COGN. ROOTS ON BIOLOGICAL PARAMETERS AND RISK FACTORS OF MYOCARDIAL INFARCTION IN NORMAL RATS
Authors:   Laboratory of Biochemistry and Pharmacology, Faculty of Health Sciences, Marien Ngouabi University, Congo., Ossibi A.W. Etou , Ngouadi V.M. Mouanda ,   Laboratory of Biochemistry and Pharmacology, Faculty of Health Sciences, Marien Ngouabi University, Congo., Itou R.D.G. Elion ,   Laboratory of Biochemistry and Pharmacology, Faculty of Health Sciences, Marien Ngouabi University, Congo., T. Taloulou ,   Laboratory of Biochemistry and Pharmacology, Faculty of Health Sciences, Marien Ngouabi University, Congo.
Published: February 2022

The present study aimed to evaluate the effects of the aqueous extract of the roots of Dissotis brazzeiCogn.(D. brazzei), on the parameters of myocardial infarction (MI) and its risk factors in normal rats. Among the cardiac pathologies cited by the population as heartache is the myocardial infarction. D.Brazzeiis a medicinal plant widely used in traditional Congolese medicine to treat heart diseases. In this study, rats were given the aqueous extract of the roots of D. brazzei(125, 250 and 500 mg/kg/day)for 7 days in, comparison with rats treated with distilled water (1 mL/100 g). The results obtained show that this extract has no significant effects on MI parameters (LDH, CK-MB, troponin I and CRP). Moreover, it causes variations at non-risk percentages of MI risk factors (blood pressure, body weight of rats, total cholesterol, HDL-C and Triglycerides). In conclusion, the aqueous extract of the roots of D. brazzei at the studied doses, does not modify the parameters of MI, nor does it promote the occurrence of the risk factors of MI. The evaluation of a cardioprotective study of this extract deserves to be carried out in rats.
CLINICAL TRENDS OF ECTOPIC PREGNANCY - A STUDY IN A TERTIARY CARE HOSPITAL OF WEST BENGAL, INDIA
Authors:   Associate Professor. Dept of G&O, Midnapore Medical College, Paschim Medinipur, W.B., Dasgupta Anjan , Pal Abirbhab ,   Senior Resident ,Dept of G&O, Midnapore Medical College, Paschim Medinipur, W.B., Mondal Bivash ,   RMO, Dept of G&O, Midnapore Medical College, Paschim Medinipur, W.B., Kumar Dash Kamal ,   Assistant Professor, Dept of G&O, Midnapore Medical College, Paschim Medinipur, W.B., Chakraborty Ayantika ,   Junior Resident, Dept of G&O, Midnapore Medical College, Paschim Medinipur, W.B., Nath Mitra Sankar ,   Professor, Dept of G&O, KPC Medical College, Kolkata, W.B.
Published: February 2022

Background: Ectopic pregnancy (EP) is the single most important cause of maternal morbidity and mortality in the first trimester and its rising trend throws a great challenge to the obstetrician and gynecologist due to its varied presentation. Aim: To study the incidence, clinical trends, risk factors and surgical management of ectopic pregnancy in a tertiary care hospital. Materials and methods: Retrospective study conducted among the diagnosed cases of ectopic pregnancies admitted during a period of 3 years and a total of 474 cases were studied. Data collected from BHT, Labor ward registers, Gynae ward registrars, Operation Theatre registers, Intensive care unit (ICU) and high dependency units (HDU) records. All the parameters were tabulated and analyzed after data entry. Results: Peak age of incidence were among 26-30 years (32.27%), more common in multigravida (74.69%), commonly presented at gestational age between 6-8 weeks (50.42%) risk factors associated with 73.18% of cases. Most commonly presented with lower abdominal pain (75.31%) followed by short h/o amenorrhea (68.35%). Classical triad presents in 37.97% of cases. Clinically extreme pallor and hemodynamically shock stage presented in 26.58% and 33.33% cases respectively. The commonest site of affection was Ampulla of the tube (50.84%) and most common operation done was Salpingectomy (83.54%). There was no mortality. Conclusions: Early diagnosis and proper management becomes the key of success. High degree of suspicion, identification of risk factors, availability of modern investigations and timely intervention will definitely help to reduce the morbidity and mortality associated with EP.
NITRITE CONTENT IN GROUNDWATER RESOURCES IN NIGER: CASE OF DISCONTINUOUS AQUIFERS OF THE DAMAGARAMMOUNIO BASEMENT
Authors:   Universite de Zinder (UZ), Faculte des Sciences et Techniques (FST), Departement de Sciences Geologiques et Environnementales., Hamidou Abdou , Adede Ibrahim ,   Direction Regionale de lHydraulique et de lAssainissement de Zinder (DRHA/Z). Laboratoire de chimies des eaux de la Direction Regionale de lHydraulique et de lAssainissement, Zinder, Niger., Habou ISSA ,   Direction Regionale de lHydraulique et de lAssainissement de Zinder (DRHA/Z). Laboratoire de chimies des eaux de la Direction Regionale de lHydraulique et de lAssainissement de Zinder, Niger.
Published: February 2022

The base of Damagaram-Mounio outcrops in the eastern part of the Zinder region. In this zone, the aquifers are discontinuous and the groundwater resources are located in fractured, fissured and / or altered horizons of granite (Older granites) and metamorphic formations of the Pan-African and young cracked granites (Younger granites) . These aquifers are mainly captured by boreholes whose failure rates, very high, can exceed 50%. In addition, the positive borehole flows are less than 2 m3 / h at more than 85% of them. Thus, the problem of water resources arises acutely. In this densely populated area, this lack of water to feed the population is aggravated by high levels of nitrites. In fact, these levels greatly exceed the standards of drinking water for human consumption hence the present study, the main objective of which is to characterize the nitrite contents in the groundwater resources of the area. The methodological approach based on the inventory of hydraulic structures capturing the boreholes in the base and the analysis of the physico-chemical parameters of the water from several boreholes, made it possible to establish that 32% of the water from the sampled boreholes has nitrite contents. , exceeding the WHO standard set at 0.1 mg / L, therefore, these waters are unfit for human consumption. This study made it possible to highlight waters with high nitrite contents which are characterized by values â€‹â€‹greater than 1 mg / L. This concerns borehole water from localities such as: Bourbourwa, Midik and that of ZengonSoumagaila. The high nitrite contents observed in the groundwater in the area may be linked to an organic pollution phenomenon. Furthermore, no significant correlation was observed between the nitrite contents and the values â€‹â€‹of the electrical conductivity of the groundwater in the area.
FIRST DATA ON THE ICHTYOLOGICAL POPULATION OF A NEW HYDROELECTRIC LAKE: CASE OF THE DAM OF SOUBRE, COTE DIVOIRE
Authors:   Laboratoire dEnvironnement et de Biologie Aquatique (LEBA), UFR-Sciences et Gestion de lEnvironnement (SGE), Universite Nangui Abrogoua (UNA), 02 BP 801, Abidjan 02, (Cote dIvoire)., Kouadio Ange Tresor Konan , Leonard Tah ,   Centre de Recherches Oceanologique (CRO), BPV 18 Abidjan, Cote dIvoire., Yehe Mathieu Dietoa ,   Laboratoire dEnvironnement et de Biologie Aquatique (LEBA), UFR-Sciences et Gestion de lEnvironnement (SGE), Universite Nangui Abrogoua (UNA), 02 BP 801, Abidjan 02, (Cote dIvoire).
Published: February 2022

The new dam of Soubre in Cote dIvoire resulted in the creation of a 17.3 km2 lake in April 2017. After an 18-month ban, the exploitation of fishery resources started and is mainly carried out by foreignBozofishermen. The present study, whose main objective was to conduct the ichthyological inventory of this lake, was executed between August 2019 and July 2021. The artisanal catches of fishermen were examined monthly in the three main landing sites of the lake. The species richness of the lake was estimated at 42 species. The specific weight composition of the catches indicates the predominance of the catfish Chrysichthys nigrodigitatus with 16% of catches.For numerical abundance, the Mormyridae Marcusenius senegalensis leads the catches with a17% rate. It should be noted that this study allowed the observation of specimens of the freshwater shrimp of the genus Macrobrachium upstream of the lake, in the river-lake transition zone, while no individual of this species was captured in the lake.
EFFICACY OF NANO-HYDROXYAPATITE COATING ON OSSEOINTEGRATION OF EARLY LOADED DENTAL IMPLANTS
Authors:   M.Sc, Faculty of Dentistry, Mansoura University., Alabed Mela Osama , Abdel- Monem Tawfik Mohamed ,   Professor and chairman of the Department of Oral and Maxillofacial Surgery Faculty of Dentistry, Mansoura University, Mansoura, Egypt., Mohamed Ahmed Said Ahmed Wael ,   Assistant Professor of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mansoura University, Mansoura, Egypt., El Din Hassan Abdel-Rahman Fakhr ,   Lecturer of Oral and Maxillofacial SurgeryFaculty of DentistryMansoura University.
Published: February 2022

Objectives:The aim of the present study is to evaluate the efficacy of Nano hydroxyapatite coating onosseointegration of early loaded dental implants in posterior maxilla. Patients and Methods: A clinical trial was carried out on twelve early loaded implants in 3 males and 7 femalepatients with ages ranging from 20 to 45years A root-form implant is the most frequently used type of dental implant today. The basis for dental implants is osseointegration, in which osteoblasts grow and directly integratewith Nanohydroxyapatite coating surfacetitanium posts surgically embedded into the jaw. After implant placement all implants were evaluated clinically at 3, 6 months and 12 months after loading and radiographically CBCT scan was taken at immediately after installation and 6 months after loading time. Clinical (implant stability using Osstell ISQ device, probing pocket depth PPD and modified sulcus bleeding index mSBI) and radiographic parameters at6 months after loading time (marginal bone loss MBL) were assessed. During the first year interval, no implant was lost and all patients showed favorable clinical and radiographic finding. Results: During the first year interval, no implant was lost and all patients showed favorable clinical and radiographic finding. The statistical tests showed that there were statistical significant differences in the mean values of the primary outcome (implant stability measured by Ostell device),probing pocket depth PPD, and marginal bone loss between the patients implants over time. Besides, no significant differences were observed between patients regarding the secondary outcomes which include modified sulcus bleeding index mSBI. Conclusions: Early loading of implant with coating Nano hydroxyapatite could be considered a valuable option to replace missing teeth.To the best of our knowledge, early loaded implants with nano HA coating have shown encouraging results in a stronger and favorable regeneration of bone and better osseointegration of implants.
A STUDY ON CONSUMERS ATTITUDE TOWARDS THE PREFERENCE OF WHITE GOODS IN ONLINE SHOPPING IN COIMBATORE DISTRICT
Authors:   Principal & Guide, Department of Commerce, Pioneer College of Arts and Science College, Coimbatore, India., Mahendran S. , Preetha S. ,   Ph.D. Research Scholar, Department of Commerce, Pioneer College of Arts and Science College, Coimbatore, India.
Published: February 2022

In India in recent times, it is observed that e-commerce has captured a huge market share and it has changed the business world. The direct investment in India increases globally and the country is considered has huge market for large scale marketers. The durable goods have emerged as one of the developing industries in India. It is to be noted that among the durable goods the white goods capture market share. The present study concentrates on consumers attitude on preference of white goods in Online shopping in Coimbatore District. Based on the survey method, the data is been collected and statistical tools is used to analyse the collected data. The study concludes that due to pandemic situation the online shopping has been increased. The consumers are able to save money on purchasing white goods through online shopping. The study also states that consumers have wide area on comparing the products and the consumers can act rationally on purchasing the white goods through online.
A STUDY ON CONSUMERS ATTITUDE ON EVENT BASED MARKETING IN COIMBATORE CITY
Authors:   Principal & Guide, Department of Commerce, Pioneer College of Arts and Science College, Coimbatore, India., Mahendran S. , Renuga M. ,   Ph.D. Research Scholar, Department of Commerce, Pioneer College of Arts and Science College, Coimbatore, India.
Published: February 2022

In world, event based marketing has been changing the consumers attitude through more variety of products and services to the people with cost effective environment. These are factors influencing to purchase the products on event-based marketing place with more excitement. The consumers have been visiting the events for more availability of products and it provides more opportunities to humans. This article focuses the consumers attitude on event-based marketing in Coimbatore city. Structured questionnaire have represented to collect the consumers responses. For analysis, the researcher utilized the percentage analysis and ANOVA to find out the attitude changes towards event based marketing in the study area. The study denotes the consumers attitude and their attitude changes on event based marketing through the analysis results in Coimbatore city.
Combatants’ issues and prospects in modern medical law under pandemic and post-pandemic conditions
Authors: Nykolyna Kateryna , Skovronskyi Dmytro M. , Voznyk Mykhailo V. , Linenko Oleksandr I. , Shatkovskyi Yaroslav M.
Published: February 2022

. This article aims to identify the current issues affecting armed conflict participants and their prospects within modern medical law in pandemic and post-pandemic times. Theoretical foundations, supported by the dialectical method, were used to study and outline the current international humanitarian law and modern medical law problems challenging combatants. The formal legal and comparative methods abetted suggesting directions for the combatants’ medical and human rights to rehabilitation in a context of global changes and social transformations in pandemic and post-pandemic times. Ultimately, combatants’ interrelated challenges and prospects in these times involve financial, social, medical, and legal components requiring modernizing the rehabilitation system. Thus, an effective policy regarding participants in hostilities will ensure a common national policy that protects every member of society.
Influence of Forced Online Distance Education During the COVID-19 Pandemic on the Perceived Stress of Postsecondary Students: Cross-sectional Study
Authors: Šorgo Andrej , Crnkovič Nuša , Gabrovec Branko , Cesar Katarina , Selak Špela
Published: February 2022

Background

One of the most significant changes in the majority of postsecondary educational institutions was the closure of those institutions and the shift of educational activities to online distance learning formats as a result of the COVID-19 pandemic. Closure combined with forced online distance education (FODE) was a cure with many side effects, 1 of them being the effect on students’ mental health and, more specifically, levels of stress. Due to the novelty of the situation, there have been no studies so far designed to link satisfaction with online study, feelings toward the study obligations, and stress among students.

Objective

The aim of the study is to assess the perceived stress of Slovenian postsecondary students in order to identify the online study–related factors affecting or acting as a covariate during the COVID-19 lockdown.

Methods

Data collection was conducted through a self-reported survey as part of a large cross-sectional study based on data collected from postsecondary students from a number of higher educational institutions. The random sample consisted of 4455 individuals. The Perceived Stress Scale (PSS-4), Satisfaction with Online Study Scale (SAT-5), and Feelings Towards Study Obligations Scale (FETSOS) were used to assess the constructs and the relations observed within the study.

Results

The results indicate that more than half of all respondents reported high levels of stress. The difference in the reported levels of perceived stress between genders were statistically significant (N=4454, F2=56.719, P<.001, Cohen d=0.35). Overall, the results suggest that a decline in the motivation to study, the quality of internet and mobile connections, and the presence of distracting factors in the study space were the 3 main factors related to the students’ negative emotions as associated with the timeliness, performance, and quality of the study obligations. Furthermore, the results show that the level of satisfaction with online study affected stress such that the higher the satisfaction, the lower the stress. Moreover, the more positive feelings connected with the timeliness, performance, and quality of the study obligations that the students felt, the more satisfaction they reported with online study and, thus indirectly, lower stress and less negative feelings.

Conclusions

The findings of this study call for implementing structures and measures targeted at stress reduction, working conditions, and pedagogy with regard to FODE.
Participatory Methods for Systems Modeling of Youth Mental Health: Implementation Protocol (Preprint)
Authors: Freebairn Louise , Occhipinti Jo-An , Song Yun Ju C , Skinner Adam , Lawson Kenny , Lee Grace Yeeun , Hockey Samuel J , Huntley Samantha , Hickie Ian B
Published: February 2022

BACKGROUND

Despite significant investment, mental health issues remain a leading cause of death among young people globally. Sophisticated decision analysis methods are needed to better understand the dynamic and multisector drivers of youth mental health. System modeling can help explore complex issues such as youth mental health and inform strategies to effectively respond to local needs and achieve lasting improvements. The advantages of engaging stakeholders in model development processes have long been recognized; however, the methods for doing so are often not well-described.

OBJECTIVE

This paper aims to describe the participatory procedures that will be used to support systems modeling for national multisite implementation. The Right Care, First Time, Where You Live research program will focus on regional youth mental health applications of systems modeling in 8 different sites across Australia.

METHODS

The participatory model development approach involves an iterative process of engaging with a range of participants, including people with lived experience of mental health issues. Their knowledge of the local systems, pathways, and drivers is combined with the academic literature and data to populate the models and validate their structure. The process centers around 3 workshops where participants interact and actively engage in group model-building activities to define, refine, and validate the systems models. This paper provides a detailed blueprint for the implementation of this process for mental health applications.

RESULTS

The participatory modeling methods described in this paper will be implemented at 2 sites per year from 2022 to 2025. The 8 selected sites have been chosen to capture variations in important factors, including determinants of mental health issues and access to services. Site engagement commenced in August 2021, and the first modeling workshops are scheduled to commence in February 2022.

CONCLUSIONS

Mental health system decision makers require tools to help navigate complex environments and leverage interdisciplinary problem-solving. Systems modeling can mobilize data from diverse sources to explore a range of scenarios, including the impact of interventions in different combinations and contexts. Involving stakeholders in the model development process ensures that the model findings are context-relevant and fit-for-purpose to inform decision-making.

INTERNATIONAL REGISTERED REPORT

PRR1-10.2196/32988
Crimean-Congo Hemorrhagic Fever Outbreak in the North Region of Oman in August 2019: Case Series Study (Preprint)
Authors: Alsaadi Khalid Saif , Abd-Ellatif Eman , Alhashmi Fatima , Almoqbali Ali , Vaidya Vidyanand
Published: February 2022

BACKGROUND

Crimean-Congo hemorrhagic fever (CCHF) is a viral zoonotic tickborne disease that has been linked to a high mortality rate in a number of nations. In Oman, the first case of CCHF was discovered in 1995. The Directorate of Disease Surveillance and Control received reports of four individuals with CCHF from various places in Northern Oman between August 17 and August 23, 2019 (during the Eid Adha festival).

OBJECTIVE

The aim of this study was to identify CCHF patients, determine the source and mechanism of transmission, and recommend preventive measures to avoid further outbreaks.

METHODS

We arranged for a field visit with teams from the Ministry of Agriculture, Fisheries and Municipality on the same day of notice (August 23-17, 2019) in the region, and a case series study was undertaken using a semistructured questionnaire.

RESULTS

The findings revealed that all of the patients were men (three were Omanis), ranging in age from 40 to 55 years. Three of the patients worked in slaughterhouses, and all patients had close contact with raw sheep tissues. Fever and gastrointestinal problems were the most common symptoms, with a case fatality rate of 25%. Late bleeding signs and coagulopathy were detected in the patient who died.

CONCLUSIONS

The causative agent was most likely CCHF virus, and the source of the outbreak was infected imported sheep through direct contact with contaminated biological tissues, based on symptoms, signs, lab tests, and the incubation period. All imported sheep must be tested and flagged at the main gates of the three ports in Oman’s north region.
Knowledge, Attitude, and Practices Among Lebanese Obstetricians and Gynecologists With Respect to COVID-19 and Pregnancy (Preprint)
Authors: Youssef Dalal
Published: February 2022

BACKGROUND

The COVID-19 pandemic has seriously disrupted the daily life of the general population, particularly the life of pregnant women. Since obstetricians and gynecologists (OBGYNs) are often the primary health care providers during pregnancy, they play a critical role in preventing and managing COVID-19 in their patients.

OBJECTIVE

This study aimed to assess the knowledge, attitudes, and practices of OBGYNs with respect to COVID-19 and to identify existing gaps that need to be addressed to improve patient and occupational safety.

METHODS

A cross-sectional study using a web-based survey was conducted among Lebanese OBGYNs during the rapid growth of the COVID-19 pandemic in Lebanon between October 20 and November 20, 2020. The analysis was performed using the SPSS software. Knowledge, attitude, and practice scores were computed. A good level of knowledge was considered when 80% of answers from the respondents were correct.

RESULTS

A total of 279 OBGYNs participated in the survey, of whom 57% were men. The majority of OBGYNs (64.2%) were more than 45 years of age and married (79.9%) and had extensive work experience (70.3%). Only 28.3% were reluctant to provide medical care for patients with COVID-19. Most of them were afraid of contracting COVID-19 or transmitting COVID-19 contracted through occupational exposure to their family members and 42.3% felt overwhelmed. Of the OBGYNs, 62.7% considered the policies implemented by the Ministry of Public Health to be sufficient. The majority of OBGYNs had a good level of knowledge in different basic and specific domains related to COVID-19 and pregnancy. Furthermore, the practice score was good in all relevant aspects (personal, clinic, and patient).

CONCLUSIONS

The high knowledge and practice scores among Lebanese OBGYNs indicate a strong commitment from these physicians to fulfill their responsibilities toward themselves and their patients during the COVID-19 pandemic.
Efficacy of a smartphone-based virtual companion to treat insomniac complaints in the general population: sleep diary monitoring versus an internet autonomous intervention (Preprint)
Authors: Philip Pierre , Dupuy Lucile , Sagaspe Patricia , de Sevin Etienne , Auriacombe Marc , Taillard Jacques , Micoulaud-Franchi Jean-Arthur , Morin Charles
Published: February 2022

BACKGROUND

Insomnia is the most prevalent sleep disorder worldwide and cognitive behavioural therapy is the front-line treatment. Digital health technologies have a role to play in screening and delivering interventions remotely and without the need for human intervention. The KANOPEE app, which provides a screening and behavioural intervention for insomnia symptoms through an interaction with a virtual agent, showed encouraging results in previous studies during and after the COVID-19 lockdown, but has not yet been evaluated in a controlled study.

OBJECTIVE

This study aims at comparing the benefits of KANOPEE, a smartphone application proposing repeated interactions with a virtual companion to screen and deliver personalized recommendations to deal with insomnia complaints; with another application proposing an electronic sleep diary and named “My Sleep Diary”. The acceptance and potential benefits of these digital solutions are demonstrated in real-life settings (i.e. without soliciting human medical resources) and in the general population.

METHODS

Subjects were included if they downloaded one of the apps between December 2020 and October 2021; and were of legal age. Both apps are available on downloading platforms in France and both groups were equivalent in terms of baseline characteristics. Primary outcome was Insomnia Severity Index (ISI) and secondary outcomes were Total Sleep Time (TST) and Sleep Efficiency (SE).

RESULTS

535 users completed the 17-day intervention with KANOPEE and 489 users completed My Sleep Diary for 17 days. A differential effect was obtained for KANOPEE users compared to My Sleep Diary users regarding ISI score (interaction Time*Group: F[2,2014] = 16.9, P<.001) and TST (KANOPEE users gained 48 minutes of sleep after intervention, while My Sleep Diary users gained only 16 minutes of sleep). Patients with the most severe ISI score (> 15) benefited the most from KANOPEE (interaction severity*Time: F[4,2014] = 26.3, P<.001).

CONCLUSIONS

KANOPEE provides significantly greater benefits than an electronic sleep diary regarding reduction of insomnia complaints in a self-selected sample of the general population.

CLINICALTRIAL

NCT05074901
Struktur Histologi Insang pada Combtooth blennies (Blenniidae) di Pantai Krakal, Gunung Kidul, Yogyakarta
Authors: Zayzda Muhammad Zuchri , Retnoaji Bambang
Published: February 2022

Blenniidae adalah famili ikan yang ditemukan di ekosistem pesisir seperti zona intertidal. Gunung Kidul memiliki banyak pantai kars dengan kesamaan dalam kondisi dan formasi geologi. Keanekagaman dan histologi Blenniidae di Gunung Kidul, terutama di Pantai Krakal, masih belum banyak dipelajari. Penelitian ini bertujuan untuk mengetahui morfometri serta struktur histologi respirasi anggota famili Blenniidae yang ditemukan di pantai Krakal. Penelitian ini dilakukan di pantai Krakal dengan metode pengambilan sampel bebas. Sampel kemudian dibawa ke Laboratorium Struktur Perkembangan Hewan untuk diukur dan dibedah. Sebanyak 3 spesies dengan masing-masing 5 sampel ditemukan di zona intertidal pantai Krakal. Dari pengamatan morfometrik, ditemukan bahwa Istiblennius edentulus dengan Istiblennius dussumeri memiliki rata-rata rasio morfometri yang berbeda sementara Istiblennius lineatus memiliki rata-rata rasio morfometri yang sama dengan Istiblennius  edentulus dan Istiblennius dussumeri. Hasil pengamatan struktur histologis insang tidak menunjukan adanya perbedaan jaringan penyusun insang antar spesies ikan, yang tersusun oleh lamella primer (1), lamella sekunder (2), sel eritrosit (3), sel pilar (4), sel epitel (5), sel mukus (6), dan sel klorit (7). Struktur insang tiap spesies ikan ini sesuai dengan kondisi habitat berupa udara terbuka sehingga dapat memperluas area respirasi dan menyimpan air di dalam insang.
Review on Frameworks Used for Deployment of Machine Learning Model
Authors: Dani Himangi
Published: February 2022

Abstract: According to the current scenario, the use of machine learning is increasing in a variety of web applications and services. A good visual experience, fast performance, and easy to use framework is critical for developing and deploying your model. Working on a machine learning model is one thing but deploying a machine learning model to production can be another. Creating a Machine Learning model is one thing but deploying the model in real-time is the real challenge. For that purpose, many different technologies are available in the field. The simplest way to deploy a machine learning model is to create a web service or application. In this paper, we will discuss different frameworks for the deployment of the machine learning model on web applications or services. In this paper we will discuss Flask framework, Streamlit framework, Django Framework. Keywords: Flask, Streamlite, Django Framework, Model deployment, Web Framework
Implementation of Tabligh As Prophetic Leadership of Muhammadiyah Through Political Movement
Authors: Eraswati Rika , Ervina Rina , Romelah Romelah
Published: February 2022

One of the forces of civil society that is always present and makes a real contribution to the progress of Indonesian politics is the Islamic mass organization Muhammadiyah.  In order to achieve the aspired goals, the Muhammadiyah leadership model exists as the basis or ideology in achieving such goals, especially in Muhammadiyah's contribution to national legal politics. The purpose of this study is to determine the implementation of Tabligh as prophetic leadership of Muhammadiyah in its role as a political movement to influence the national political process. This paper was built based on a literature review. Indonesia is a democratic country and Muhammadiyah was born as a political movement in influencing the national political process. It is a form of citizen aspirations that was formed using an association of groups or organizations as guaranteed by the 1945 Constitution. Muhammadiyah, in their every struggle including in national politics, always uses its identity or ideology as a da'wah organization based on "amar ma'ruf nahi munkar" that is sourced from the Qur'an and Sunnah. Muhammadiyah implements the nature of Tabligh in carrying out its role as a political movement which is to always criticize any regulations that are contrary to the truth or that will bring harm to society. Muhammadiyah is not in a coalition with the government or with any political party, but Muhammadiyah has always supported policies that lead to the benefit of society.