bluuebunny/crossref_metadata_2025 huggingface dataset:
RUPTURE UTERINE SPONTANEE A PROPOS DUN CAS ET REVUE DE LA LITTERATURE
Authors:   Service De Gynecologie- Obstetrique De La Maternite Souissi CHU Rabat., Kallali A. , Rhemimet M. ,   Service De Gynecologie- Obstetrique De La Maternite Souissi CHU Rabat., Boujida S. ,   Service De Gynecologie- Obstetrique De La Maternite Souissi CHU Rabat., Zeraidi N. ,   Service De Gynecologie- Obstetrique De La Maternite Souissi CHU Rabat., Lakhdar A. ,   Service De Gynecologie- Obstetrique De La Maternite Souissi CHU Rabat., Baidada A. ,   Service De Gynecologie- Obstetrique De La Maternite Souissi CHU Rabat.
Published: June 2021

La rupture uterine est un problÃ¨me de sante publique dans les pays en developpement. Lorsquelle est spontanee, elle survient le plus souvent pendant le travail dans un contexte duterus cicatriciel. La rupture uterine pendant la grossesse est une situation rare. Le diagnostic nest pas toujours evident et la morbidite et la mortalite maternelle et fÅ“tale sont encore elevees. Nous rapportons un cas de rupture uterine spontanee en dehors du travail Ã 30 semaines.
PERICARDITIS IN RHEUMATOID ARTHRITIS
Authors:   Consultant Cardiology, SSH, GMC Jammu., Ali Nasir , Ahmed Wani Owais ,   DrNB Cardiology , SSH,GMC Jammu., Qayoom Ouber ,   DrNB Cardiology , SSH,GMC Jammu., Ajaz Kakroo Shahood ,   SR Cardiology, NIMS Hydrabad., Beniwal Rajveer ,   DrNB Cardiology , SSH,GMC Jammu.
Published: June 2021

Background : Rheumatoid arthritis (RA) is a chronic inflammatory disease of the joints, and extra-articular features are also very common . RA is associated with an increased mortality , the majority of which is originating from cardiovascular diseases . The most common cardiac involvement in RA is pericarditis . Varying the method of assessment pericarditis occurs in 30â€“50% of the patients. Objective : To study prevalence of pericarditis in Rheumatoid arthritis patients , by echocardiography Methods: A Prospective observational study , conducted in department of general medicine GMC Srinagar , from 2016 to 2018. 110 patients of rheumatoid arthritis were enrolled in this study. Results : Out of 110 patients , 49 % had some form of heart involvement , pericardial effusion was present in 9.1 % of patients. Female to male ratio was 3.6:1 , there were 24 (22%) males and 86 (78%) females, there was no significant relationship between gender and abnormal echocardiography findings in RA patients (p > 0.05) Conclusion : Prevalence of pericarditis was present in only 9.1% patients in our study , which is less compared to the previous studies. It is most likely because our patients were on DMARD and their disease was well controlled .Most of the previous studies date back to 70 and 80s , when DMARDS were not available and likely because of that pericarditis was very common.
METHODS FOR DETERMINING THE FORMATION OF PROFESSIONAL CULTURE OF STUDENTS IN HIGHER EDUCATION
Authors:   Head of the Department of Innovative EducationTashkent State University of Economics., Muhabbat Fayzievna Khakimova
Published: June 2021

This article fully clarifies the content and order of application in practice of socio-metric methods aimed at diagnosing the mental and spiritual development of the individual, the direction of competence in various areas of activity.Our time forces a person to think, reason, reflect and draw conclusions for himself every second as an independent-minded person. That is, in this infinite world, we have to know and study pedagogy-psychology because we cannot imagine ourselves without others, without our own interests.
RESCUE CERVICAL CERCLAGE WITH VAGINAL PESSARY SUPPORT AND ALTERNATIVE TOCOLYTICS IN CORONA POSITIVE , DCDA TWIN WITH HIGH LEAKING AND 16 WEEKS OF HOSPITALISATION LEADING TO SUCCESSFUL OUTCOME - A CASE REPORT
Authors:   M.B.B.S , M.S ( OBS AND GYNAE ) She is senior consultant gynecologist at p. C. Sethi hospital, indore and is also teaching faculty for dgo ( cps mumbai ) . She has been the training coordinator and master trainer for mtp for mp state since several years . She has also done training in laparoscopy from cemast , mumbai., Vijaywargiya Komal , Kachhara Namrata ,   M.B.B.S , M.S ( OBS AND GYNAE) Consultant Gynecologist In Medanta Hospital , Indore., Jain Kalpana ,   M.B.B.S , M.S ( OBS AND GYNAE ) Senior Consultant Gynecologist , Indore., Ruia Aayushi ,   M.B.B.S , M.S ( OBS AND GYNAE ) Senior resident at P.C. Sethi hospital , Indore.
Published: June 2021

A twin gestation invariably leads to a certain extent of cervical length shortening . If this reduction is also associated with gradual dilatation of internal os and various biochemical , mechanical changes in cervical matrix , this can lead to mid trimester pregnancy loss or preterm labour. This is a case report on Dichorionic , Diamniotic twin pregnancy with cervical incompetence in which rescue cerclage was performed along with judicious use of tocolysis and vaginal pessary.
OSTEOARTHRITE DE LARTICULATION STERNOCLAVICULAIRE A PROPOS DE 2 CAS
Authors:   Service de chirugie orthopedique, Hopital Ibn Tofail, CHU Med VI, Marrakech, Maroc., Ayyadi H. , Lahmam H. ,   Service de chirugie orthopedique, Hopital Ibn Tofail, CHU Med VI, Marrakech, Maroc., El Ghali H. Ait ,   Service de chirugie orthopedique, Hopital Ibn Tofail, CHU Med VI, Marrakech, Maroc., Chafik R. ,   Service de chirugie orthopedique, Hopital Ibn Tofail, CHU Med VI, Marrakech, Maroc., Elhaoury H. ,   Service de chirugie orthopedique, Hopital Ibn Tofail, CHU Med VI, Marrakech, Maroc., Madhar M. ,   Service de chirugie orthopedique, Hopital Ibn Tofail, CHU Med VI, Marrakech, Maroc., Najeb Y. ,   Service de chirugie orthopedique, Hopital Ibn Tofail, CHU Med VI, Marrakech, Maroc.
Published: June 2021

L articulation sterno-claviculaire est souvent mal connue et sa pathologie, quoique frequente, est volontiers sous-estimee. L atteinte infectieuse de cette articulation est assez rare, mais elle peut etre grave, notamment si elle se complique d une mediastinite pouvant engager le pronostic vital. Par comparaison avec les autres arthrites septiques, l atteinte sterno-claviculaire presente plusieurs singularites concernant les donnees epidemiologiques, les facteurs de risque, les signes cliniques et biologiques. Un diagnostic rapide et un traitement adapte sont les seuls garants d un excellent pronostic. Nous rapportons dans cette etude retrospective 2 cas colliges dans notre service presentant tous les deux une osteoarthrite de larticulation sterno-claviculaire. Le traitement etait exclusivement medical par antibiotherapie avec evolution favorable. Du fait de sa rarete et de son tableau clinique souvent trompeur, le diagnostic d une arthrite septique de la sterno-claviculaire est souvent retarde. Il faut savoir evoquer cette pathologie devant une douleur, meme atypique, de la region sterno-claviculaire ou de l epaule. Faute d un diagnostic precoce, les complications locoregionales peuvent s installer, notamment la redoutable mediastinite. Diagnostiquee rapidement, cette arthrite est aisement contrÃ´lee par le traitement medical, et le pronostic est excellent.
ASSESSMENT OF FINANCIAL RESOURCES ON SEAPORTSAND AIRPORTSSTRATEGIC PROJECTS DEVELOPMENT PERFORMANCE IN ZANZIBAR TANZANIA
Authors:   Department of Marketing and Entrepreneurship, Faculty of Business Management, Open University of Tanzania., Kh. Ramadhan Sosela Ramadhan , S. Mohamed Salum ,   Department of Marketing and Entrepreneurship, Faculty of Business Management, Open University of Tanzania., Waane Simon ,   Department of Marketing and Entrepreneurship, Faculty of Business Management, Open University of Tanzania.
Published: June 2021

The study aimed at assessing thefinancial resource challenges facing airports and seaports development projects in Zanzibar. However, there was inadequate information on howfinancial resources determines the performance of airports and seaports development projects in Zanzibar. The study adopted positivism research philosophy, explanatory, and descriptive cross-sectional research designs. Also, quantitative data were collected by the use of questionnaires. The questionnaire was administered to 214 respondents all randomly drawn from the five projects selected in Zanzibar. Multiple linear regression models were used to analyse and test the hypotheses. The study found that the effect of financial resources on the performance has a positive contributed to the performance of airport and seaports development projects. The study recommends that the government should enforce and strengthen the policy on acquisition of financial budgetary allocation for public development projects.
RELIABILITY EVALUATION OF COMPOSITE SYSTEM WITH AGING FAILURE
Authors: Lakshman Tanay
Published: June 2021

Reliability is concerned with the system capability of survival. In the past forty years, customer expectations have been increasing in response to evolving new technologies. As part of these evolutions, they are demanding from their suppliers: products with higher quality, low initial cost, improved customer support and products that are easy and inexpensive to maintain. For a supplier to survive, succeed and be profitable in todays market, It must do the following: a) Constant improvement in the quality of the products. b) Minimization of the cost. c) Be flexible and responsive to the customers requirement. This deals with reliability evaluation of combined generation and transmission system known as composite system. It describes a technique calculate composite system reliability with aging failure. The reliability evaluation deals with the a) Calculation of aging failure rate & aging repair rate of all Components of the system. b) Calculation of EENS value of all Components of the system by performing Reliability Analysis using SKMS PTW 6.5.
A STUDY OF THE ATTITUDE OF SENIOR SECONDARY SCHOOL STUDENTS TOWARDS SCIENCE PROCESS SKILLS
Authors:   Department of Integrated Science, Kogi State College of Education, Ankpa., A. Ajanigo Joy , Aboritoli Sunday ,   Department of Integrated Science, Kogi State College of Education, Ankpa.
Published: June 2021

Science process skill (SPS)is an essential skillrequired in studying science and achieving the reform in Science, Technology, Engineering, and Mathematics (STEM) education in Nigeria. Science process skills areinseparable from scientific processes, such as observing, experimenting, and analyzing events. The current studys primary purpose is to assess the attitude of senior secondary school students towards science process skills. Also, to determine the teachers pedagogical competence (TCP) inattitude towards science process skills. One hundred and sixteen senior secondary school students drawn from public and private secondary schools in Kogi State participated in the study. The participants completed self-report measures on attitude towards science process skills and perceived teachers pedagogical competence. The findings revealed that 65.5% of the respondents expressed a negative attitude towards science process skills. Also, it was found that teachers pedagogical competence influenced attitude towards science process skills. The findings and practical implications of the study are discussed.
COMPARATIVE STUDY OF THE ATTITUDES OF SCIENCE AND NON-SCIENCE STUDENTS TOWARDS STATISTICS
Authors:   Department of Mathematics, Kogi State College of Education, Ankpa., G. Adeniyi Sunday , Yusuf Musa ,   Department of Mathematics, Kogi State College of Education, Ankpa.
Published: June 2021

The current study was conducted to determine whether there would be a difference between science and non-science students attitudes towards statistics. Two hundred and eight undergraduates were pooled from three public tertiary institutions in the Kogi State of Nigeria as the study participants. A cross-sectional survey design was adopted. The participants completed a self-report measure of Survey of Attitude toward Statistics (SATS-36), originally developed by Schau (2003). An independent t-test performed on the data established a statistically significant difference in the attitudes of the science and non-science students towards statistics at MD = 0.77 (95% CI, 0.57 to 0.77), t (206) = 12.747, p = .001. It was concluded that there is variation between the attitude of science students and non-science students towards the teaching and learning of statistics. The study recommends that robust attitude change strategies be adopted to reshape the attitudes of the non-science students towards statistics.
THE ROLE OF COOPERATIVE INSTRUCTIONAL STRATEGIES ON INTEGRATED SCIENCE PROCESS SKILLS
Authors:   Department of Integrated Science, Kogi State College of Education, Ankpa, Kogi State, Nigeria., Stephen O. Idachaba , Daikwo Stephen ,   Department of Integrated Science, Kogi State College of Education, Ankpa, Kogi State, Nigeria.
Published: June 2021

Research has shown that integrated science process skills are crucial in the modern-day world. In this study, we used secondary school students enrolled in the science classes to determine the role of cooperative instructional strategy on the students integrated science process skill. Ninety-eight students participated in the study. We adopted a pre-test post-test research design in the study. The participants were grouped into two different groups for the pre-test and post-test studies. The experimental group was exposed to the cooperative instructional teaching method, while the control group was taught conventionally. Test of Integrated Science Process Skills (TISPS) was used to assess the participants integrated science process skills. An independent-samples t-test was run to determine if there were differences between the experimental and the control groups on integrated science process skills in the post-test study. The integrated science process skills increased in the experimental group (4.71 Â± 4.91) than the control group (23.01 Â± 4.27), a statistically significant difference of 18.68 (95% CI, 16.83 to 20.54), t (96) = 20.026, p = .001 was established. It was concluded that cooperative instructional strategy enhances students performance integrated science process skills. The study recommends that teachers should be regularly trained on the use of cooperative instructional strategies.
STUDY OF THE SCIENTIFIC TEMPER OF SENIOR SECONDARY SCIENCE STUDENTS
Authors:   Lecturer in Education, Seth R.L.Saharia Government P.G.College, Kaladera, Jaipur, Rajasthan, India., Deep Bhatnagar Rishu
Published: June 2021

This research aims to study the scientific temper of senior secondary science students in the context of the locality, gender and subject groups. Investigator developed a standardized tool for measuring the scientific temper, consists of 100 test items related to six dimensions of scientific temper. The tools reliability, cross validity and concurrent validity were found 0.68, 0.72 and 0.68 respectively. A sample of 600 was selected randomly from the population and the tool was administrated on the sample to compare the scientific temper in the context of the locality, gender and subject group. Descriptive and inferential statistical analysis of the raw score revealed that the scientific temper of urban senior secondary science students is significantly higher than their rural counterpart and the scientific temper of PCM (Physics, Chemistry and Mathematics) subject group students is also significantly higher than PCB (Physics, Chemistry and Biology) subject group students but the scientific temper of boys and girls of senior secondary science students does not differ significantly.
GC-FID METHOD DEVELOPMENT AND METHOD VALIDATION OF EUGENOL IN CLOVE OIL EXTRACTED BY HYDRODISTILLATION
Authors:   Department of Analytical Chemistry, S.H.P.T College of Science, SNDT Womens University, Mumbai-400049, India., Gotmare Sulekha , Tambe Esha ,   Department of Analytical Chemistry, S.H.P.T College of Science, SNDT Womens University, Mumbai-400049, India.
Published: June 2021

Eugenol is the essential component of many spice oils such as clove, cinnamon leaf, basil, nutmeg, etc. The determination of the authenticity of the essential oil is pivotal for estimating the purity of any essential oil. Hence, there is a high time to identify the marker compounds present in a particular essential oil. From ancient times, clove oil is known for many physiological properties. It is also widely used in dentistry and has potent antioxidant property. In this study, eugenol content in clove oil was evaluated by using GC FID. The ICH guideline was used to determine the suitability of the analytical method developed and validated.
POLYMYOMECTOMIE RAPPORTANT 20 FIBROMES : A PROPOS DUN CAS ET REVUE DE LA LITERATURE
Authors:   Service De Gynecologie- Obstetrique De La Maternite Souissi CHU Rabat., Rhemimet M. , Kallali A. ,   Service De Gynecologie- Obstetrique De La Maternite Souissi CHU Rabat., Boujida S. ,   Service De Gynecologie- Obstetrique De La Maternite Souissi CHU Rabat., Zeraidi N. ,   Service De Gynecologie- Obstetrique De La Maternite Souissi CHU Rabat., Lakhdar A. ,   Service De Gynecologie- Obstetrique De La Maternite Souissi CHU Rabat., Baidada A. ,   Service De Gynecologie- Obstetrique De La Maternite Souissi CHU Rabat., Kharbach A. ,   Service De Gynecologie- Obstetrique De La Maternite Souissi CHU Rabat.
Published: June 2021

Les fibromes uterins sont des tumeurs des cellules musculaires lisses il sagit des tumeurs gynecologiques benignes les plus courantes chez les femmes en age de procreer. Leur presence est souvent constatee dans le cadre de lexploration qui est menee chez un couple aux prises avec linfertilite par ailleurs, ces fibromes sont dorigine monoclonale. Il est rare de constater des fibromes avant lapparition des premiÃ¨res rÃ¨gles de plus, les fibromes connaissent habituellement une regression aprÃ¨s la menopause. Ils reagissent aux hormones et les oestrogÃ¨nes semblent en promouvoir la croissance. Il a ete demontre que les concentrations locales en oestrogÃ¨nes sont plus elevees dans les myomes que dans le myomÃ¨tre environnant, ce qui sexplique peut-etre par une concentration accrue en aromatase. La reactivite hormonale semble etre accrue dans le cas des myomes sous-muqueux, par comparaison avec celle que presentent les myomes sous-sereux.Lechographie constitue un moyen adequat, rapide, sur et rentable de determiner la taille, le nombre et lemplacement des fibromes .La prise en charge de ces myomes peut etre une abstention ou un traitement medical ou un traitement chirurgical conservateur polymyomectomie ou radicale une hysterectomie.
HOME ECONOMICS VERSUS OTHER SUBJECTS: A STUDY OF NIGERIANS PARENT ATTITUDE TOWARDS HOME ECONOMICS EDUCATION IN SECONDARY SCHOOLS
Authors:   Department of Home Economics, Federal College of Education, Eha Amufu, Enugu State, Nigeria., Justina Nchekwube , Igwe Amarachi ,   Department of Home Economics, Federal College of Education, Eha Amufu, Enugu State, Nigeria.
Published: June 2021

Home economics is an essential subject in Nigerias education system with the potential of providing life skills and teaching basic homecare knowledge to the students. However, there is a growing concern about the decreasing enrollment and interest of students in home economics education in Nigeria. Thus, the primary purpose of this study wasto investigate the attitudes of parentsregarding home economics education in comparison to other subjects. Two hundred and thirty-six parents were drawn from different locations in the Enugu State of Nigeria. A simple percentage score indicates that the majority of the parents (74%) indicated a negative attitude towards home economics, while less (26%) showed positive attitudes. The study concludes that there is a prevalence of negative attitudes towards home economics education in secondary schools in Nigeria.
MATHEMATICS ANXIETY AND CHOICE OF SUBJECT AMONG JUNIOR SECONDARY SCHOOL STUDENTS
Authors:   Department of Mathematics, Kogi State College of Education, Ankpa., P. Agashi Pius , G. Adeniyi Sunday ,   Department of Mathematics, Kogi State College of Education, Ankpa.
Published: June 2021

Mathematics anxiety has been found to negatively impact students academic performance, and the trend is pervasive in our society. The purpose of this study was to determine whether math anxiety will predict students choice of subject. A total of one hundred and sixty-six junior secondary school students participated in the study. The Maths Anxiety Scale (MAS) was used to measure the respondents level of math anxiety. Their subject choice was indicated in the demographic section. The linear regression analysis conducted on the data revealed that math anxiety positively and statistically predicted students choice of subject. The findings and practical implications of the study are discussed.
PHYTOCHEMICAL AND ANTIMICROBIAL SCREENING OF THE STEM BARK EXTRACTS OFPTEROCARPUS ERINACEUS (POIR)
Authors:   Department of Physics, Kogi State College of Education, Ankpa, Kogi State, Nigeria., Sunday Ogah
Published: June 2021

Medicinal plants are very rich in phytochemicals and have been widely used in modern-day processing drugs. Pterocarpus Erinaceus and has been commonly utilized in Nigerian folk medicine to treat various illnesses such as diarrhea, dysentery, urethral discharges, fever. In this study, the phytochemical constituents and antimicrobial activities of Pterocarpus Erinaceus were analyzed. The result of the phytochemical analysis revealed the presence of tannins, saponins, and flavonoids. The antimicrobial screening showed that the plant is active against Salmonella typhi, Klebsiella pneumoniae, Enterobacter aerogenes, Enterococcus faecalis, and Escherichia coli.
ABRASIVE JET MACHINING AND OPTIMIZATION OF PROCESS PARAMETERS
Authors:   (Under Guidance Of Assistant Professor Mukesh Dadge), Dept. Of Mechanical Engineering, Delhi Technological University, Delhi, India., Vinay Sachin , Bhanwal Sachin ,   (Under Guidance Of Assistant Professor Mukesh Dadge), Dept. Of Mechanical Engineering, Delhi Technological University, Delhi, India., Yadav Sahil ,   (Under Guidance Of Assistant Professor Mukesh Dadge), Dept. Of Mechanical Engineering, Delhi Technological University, Delhi, India.
Published: June 2021

Abrasive Jet Machining also known as micro-abrasive blasting or pencil blasting is one of the mechanical energy based economical non-traditional machining process for cutting, deburring, polishing, drilling, etching and cleaning of alloys, brittle metals and non-metallic materials due to its high degree of flexibility and low stress forces with less heat generation.In AJM process, fine abrasive grits (silicon carbides, Aluminium oxides, Sodium bicarbonate, Boron Carbides, Crushed glass and Dolomite etc.) of typically ~0.025 mm are accelerated in a high velocity (150-300 m/s) jet of gas stream or air which is generated by converting pressure energy of carrier gas or air to its Kinetic energy and hence high velocity jet and nozzle directs abrasive jet in a controlled manner towards the work surface. Small fractures are created after impacting abrasive particles on the work surface.
HPLC Identification of Mare’s Milk and Its Mix with Cow’s Milk
Authors: Kurchenko Vladimir , Simonenko Elena , Sushynskaya Natalia , Halavach Tatsiana , Petrov Andrey , Simonenko Sergey
Published: June 2021

Introduction. Mare’s milk is a valuable food product with medicinal properties. In combination with cow’s milk, it is used to create new functional foods. Efficient identification of mare’s milk, cow’s milk, and their mixes prevent falsification.

Study objects and methods. The protein composition of mare’s and cow’s milk whey and their mixes was analyzed by high performance liquid chromatography (HPLC) using an Agilent 1200 chromatograph with an Agilent G1315C diode array detector. Separation was performed using a column Machinery Nagel C 18 4.6×250, 5 μm.

Results and discussion. The standard HPLC method was optimized to analyse whey proteins in the milk samples. The separation of whey proteins included the following optimal parameters: chromatography time = 60 min, linear gradient of acetonitrile concentration = 0–50%, and sample volume for injection = 20 μl. Alpha-lactoalbumin proved to be the protein of mare’s milk and cow’s milk. The retention time of mare’s α-lactoalbumin was 45.16 min, and that of cow’s milk – 40.09 min. The differences in the retention time of α-lactoalbumin were associated with the presence of 33 amino acid substitutions in the primary structure of both milks. The areas of α-lactoalbumin peaks were used to calculate the amount of cow’s milk added to mare’s milk and the related percentage.

Conclusion. A HPLC analysis of whey proteins made it possible to determine up to 50 mL of added cow’s milk in 1 liter of mare’s milk.
Trends of potential waterborne diseases at different health facilities in Bamboutos Division, West Region, Cameroon: a retrospective appraisal of routine data from 2013 to 2017
Authors: Robertine Lontuo-Fogang , Payne Vincent Khan , Honorine Ntangmo Tsafack , Mounchili Souleman , Saturine Matango Murielle , Manjuh Bup Rita , Aboubakar Ngouyamsa Nsapkain , Roland Bamou
Published: June 2021

Many Cameroonian cities lack access to potable drinking water where populations rely on alternative water sources of doubtful quality. This study aimed at describing the trends and patterns of waterborne diseases (WBDs) reported in some health facilities in Bamboutos Division between 2013 and 2017 as baseline data towards understanding the profile of WBDs in this area. A retrospective review of clinical data kept on patients who visited the main health facilities in Bamboutos Division from January 2013 to December 2017 was conducted. Overall, 39.1% (n = 8,124) of total patients were positive for at least one WBD. Categories of WBDs were dysenteries (18.6%), gastroenteritis (4.2%), viral hepatitis (0.2%) and typhoid was the most preponderant (24.4%). The most affected age groups were those above 24 years but significant differences were observed only in 2013 and 2017. Distribution of potential WBDs was locality dependent. The highest prevalence of typhoid fever was recorded in Bameboro (35.4%), dysenteries in Bamedjinda (20.4%) and gastroenteritis (17.3%) in Bamekoumbou. The study shows very high overall prevalence of WBDs in some localities which could be considered as ‘hotspots’ of WBDs in Bamboutos. This suggests the urgent need for setting up measures to tackle the challenges of potable drinking water supply.
Isolation, characterization and optimization of chrysene degradation using bacteria isolated from oil-contaminated water
Authors: Thomas Smeera , Veettil Nitha Thalakkale , Subbiah Kavitha
Published: June 2021

Polyaromatic hydrocarbons (PAHs) are uncharged, non-polar molecules generated from natural and anthropogenic activities, where the emissions from anthropogenic activities predominate. Chrysene is a high molecular weight PAH, which is found to be highly recalcitrant and mutagenic in nature. The aim of this study was to isolate chrysene-degrading microorganisms from oil-contaminated water and to enhance their degradative conditions using design expert. From the various samples collected, 19 bacterial strains were obtained through enrichment culture and the one which showed highest activity was identified by 16S rRNA sequencing as Bacillus halotolerans. Under optimum conditions of 100 mg/L chrysene concentration, 1,000 mg/L nitrogen source, and pH 6, B. halotolerans exhibited 90% chrysene degradation on sixth day. Positive results for the enzymes laccase and catechol 1,2 dioxygenase confirmed the ability for chrysene degradation by the isolated strain. Major metabolic intermediate determined in gas chromatography-mass spectrometry (GCMS) analysis was diisooctyl phthalate. Hence it can be concluded that B. halotolerans can be a promising candidate for the removal of high molecular weight (HMW) hydrocarbons from contaminated environments.
Efficacy and Safety of Angiotensin-Converting Enzyme Inhibitors in Combination with Angiotensin-Receptor Blockers in Nondiabetic Chronic Kidney Disease: A Systematic Review and Meta-Analysis
Authors: Zhao Mingming , Ma Sijia , Yu Yi , Wang Rumeng , Chang Meiying , Zhang Hanwen , Qu Hua , Zhang Yu
Published: June 2021

Background:

It is unclear whether angiotensin-converting enzyme inhibitors (ACEIs) in
combination with angiotensin-receptor blockers (ARBs) are superior to ACEIs or ARBs alone in the
treatment of nondiabetic chronic kidney disease (CKD). The present meta-analysis was designed to
assess the efficacy and safety of ACEIs in combination with ARBs in nondiabetic CKD.

Methods:

The PubMed, Embase, and Cochrane Library databases were searched to identify randomized
controlled trials (RCTs) published prior to March 2020. A random-effects model was used to calculate
the effect sizes of eligible studies.

Results:

The present meta-analysis of 20 RCTs encompassing 1,398 patients with nondiabetic CKD
demonstrated that ACEIs in combination with ARBs were superior to ACEIs or ARBs alone in reducing
urine albumin excretion (SMD, -0.69; 95% CI, -1.13 to -0.25; P=0.002), urine protein excretion (SMD,
-0.34; 95% CI, -0.46 to -0.23; P<0.001), and blood pressure (systolic blood pressure: WMD, -1.43; 95%
CI, -2.42 to -0.44; P=0.005; diastolic blood pressure: WMD, -1.85; 95% CI, -2.67 to -1.04; P<0.001)
without decreasing glomerular filtration rate (SMD, -0.07; 95% CI, -0.20 to 0.06; P=0.30) or increasing
incidences of hyperkalaemia (RR, 1.70; 95% CI, 0.47 to 6.11; P=0.42) and hypotension (RR, 1.80; 95%
CI, 0.67 to 4.86; P=0.25).

Conclusion:

Compared with ACEIs or ARBs alone, ACEIs in combination with ARBs are effective and
safe in the treatment of nondiabetic CKD. ACEIs combined with ARBs may be a better choice to reduce
proteinuria as long as they can be tolerated.
Enhanced Efficiency of Dye Sensitized Solar Cell Using Eu Doped TiO2-ZrO2 Nanocomposite
Authors: Bhatt Piyush , Tomar Laxmi , Desai Rahul , Chakrabarty Bishwajit
Published: June 2021

Background:

Hydrothermal method was used to prepare TiO2-ZrO2 and Eu doped TiO2- ZrO2 nanocomposites for dye sensitized solar cell app lication.

Methods:

X-ray diffraction was used to study the structural properties of prepared samples. Anatase and Rutile phases of TiO2 and Monoclinic and tetragonal phases of ZrO2 have been detected from XRD in prepared samples. The crystallite size of prepared samples lies between 6 to 18 nm. Absorption edge has been shifted to the longer wavelength region. The optical bandgap of TiO2-ZrO2 (2.15 eV) and Eu doped TiO2-ZrO2 nanocomposites (2.03 eV) have been calculated using Tauc’s plot. A decrease in bandgap compared to pure TiO2 has been observed. The increased refractive index has been determined from UV -Visible spectra.

Results:

Because of the high refractive index photons can stay for longer period of time inside the material and then they can be used to generate electrons in dye sensitized solar cell. An attempt was made to prepare an inexpensive dye sensitized solar cell by replacing synthetic organic dye with natural dye (pomegranate juice) and platinum coated counter electrode by carbon coated electrode. The improvement in efficiency has been recorded for prepared samples and it has been found to be 0.71%, 1.97% and 6.25% for TiO2, TiO2-ZrO2 nanocomposite and Eu doped TiO2-ZrO2 nanocomposite respectively.

Conclusion:

A simple and cost-effective DSSC prepared by materials is capable of producing a good amount photocurrent.
Preliminary Study of Calorific Value Increase on Lignite Coal Using Dialkyl Carbohydrate Biosurfactant
Authors:   Department of Chemical Engineering, Faculty of Industrial Engineering, Universitas Pembangunan Nasioanal “Veteran” Yogyakarta, Mahreni Mahreni , Puspitasari Mitha ,   Department of Chemical Engineering, Faculty of Industrial Engineering, Universitas Pembangunan Nasioanal “Veteran” Yogyakarta
Published: June 2021

Indonesian coal consumption is dominated by a low-grade coal quality, and supplied from local coals mining which was composed of lignite. A technological breakthrough has to be main objective to convert low grade coal into upper-class coal. This paper reports on improving the quality of lignite coal by washing with biosurfactant. Di-alkyl carbohydrates were tested on coal sizes of 80, 64, 16 and 6 mesh. The optimum biosurfactant applied to increase the calorific value derived from brown algae, namely isopropyl stearate alginate (ISA) 0.5%. This was able to improve a calorific value of lignite coal up to 27722.74% or increased by 11%. The size of the coal also affects the calorific value of lignite coal. Four coal sizes applied in the study (80, 64, 16, and 6 mesh), indicates coal size 80 mesh has given the best calorific value improvement. Conversely, the smaller of the coal size, increase biosurfactant absorption. Thus, improve the washing capability of biosurfactants.
Modelling the Cumulative Number of COVID-19 Cases
Authors:   112 Four Seasons, Ottawa, Canada, Szyszkowicz Mieczysław
Published: June 2021

Each country has its own characteristics of COVID-19 infection trajectory and epidemic waves. Differences in government-implemented restrictions and social regulations result in variability of the virus transmissions and spread dynamics. This in turn results in various shapes of the growth function used to represent and describe the propagation of infection. Statistical methods are applied to fit non-linear functions to represent daily time-series data of the cumulative numbers of COVID-19 cases. The aim of this work is to fit various statistical models to the cumulative number of COVID-19 cases. Also to overview various types of the existed numerical methodologies. The data (since December 31, 2019) are available for almost each country in the world. As the examples, we used daily time-series data of the cumulative number of COVID-19 cases in Poland, Italy, Canada, and the USA. Non-linear approximations are applied to represent these time series data. The fitted functions allow us to investigate the dynamics of the pandemic. The constructed approximations are compositions of a few nonlinear functions, which describe the growth process of the COVID-19 infection trajectories. Two Gompertz functions and cumulative distribution functions (cdf) were estimated for the data of Poland and Italy (using the cdf for the normal distribution) and for the data of Canada and the USA (using the cdf for the gamma distribution). An analytical (parametric) functions representation of the number of COVID-19 cumulative cases is a useful tool to study the propagation of epidemics.
Extended Reality for Enhanced Telehealth During and Beyond COVID-19: Viewpoint
Authors: Ong Triton , Wilczewski Hattie , Paige Samantha R , Soni Hiral , Welch Brandon M , Bunnell Brian E
Published: June 2021

The COVID-19 pandemic caused widespread challenges and revealed vulnerabilities across global health care systems. In response, many health care providers turned to telehealth solutions, which have been widely embraced and are likely to become standard for modern care. Immersive extended reality (XR) technologies have the potential to enhance telehealth with greater acceptability, engagement, and presence. However, numerous technical, logistic, and clinical barriers remain to the incorporation of XR technology into telehealth practice. COVID-19 may accelerate the union of XR and telehealth as researchers explore novel solutions to close social distances. In this viewpoint, we highlight research demonstrations of XR telehealth during the COVID-19 pandemic and discuss future directions to make XR the next evolution of remote health care.
Exergaming Using Postural Feedback From Wearable Sensors and Exercise Therapy to Improve Postural Balance in People With Nonspecific Low Back Pain: Protocol for a Factorial Pilot Randomized Controlled Trial
Authors: Meinke Anita , Peters Rick , Knols Ruud , Karlen Walter , Swanenburg Jaap
Published: June 2021

Background

Physical exercise is a common treatment for people with low back pain (LBP). Wearable sensors that provide feedback on body movements and posture during exercise may enhance postural balance and motor control in people with LBP.

Objective

This study aims to investigate whether physical exercising with postural feedback (EPF) improves postural balance, motor control, and patient-reported outcomes in people with LBP.

Methods

The study was an assessor-blinded 2×2 factorial trial. We planned to recruit 80 participants with nonspecific LBP who did not receive treatment for LBP. In addition, we aimed to recruit 40 patients with chronic, nonspecific LBP who were receiving exercise therapy (ET) at the University Hospital Zurich. Both ET patients and participants without treatment were randomized to receive either an additional EPF intervention or no additional intervention. This resulted in four different combinations of interventions: ET+EPF, ET, EPF, and no intervention. The participants underwent outcome assessments at inclusion (T1); 3 weeks later, at randomization (T2); after an intervention period of 3 weeks with a predefined exercise schedule for participants receiving EPF (T3); and after an additional 6 weeks, during which participants assigned to the EPF groups could exercise as much as they wished (T4). Patients receiving ET completed their regularly prescribed therapies during the study period. Balance was assessed during quiet standing on a force platform, and motor control was assessed during a lifting task and a waiter’s bow task. Physical activity was recorded using an activity tracker and the participants’ mobile phones during the study. The predefined EPF schedule consisted of nine sessions of 20 minutes of exercise with a tablet and inertial measurement unit sensors at home. Participants performed a series of trunk and hip movements and received feedback on their movements in a gamified environment displayed on the tablet.

Results

The first participant was recruited in May 2019. Data collection was completed in October 2020, with 3 patients and 32 eligible people without therapy who passed the eligibility check.

Conclusions

Although it will not be possible to investigate differences in patients and people without other therapies, we expect this pilot study to provide insights into the potential of EPF to improve balance in people with LBP and adherence to such interventions.

International Registered Report Identifier (IRRID)

DERR1-10.2196/26982
A Venomics Approach to the Identification and Characterization of Bioactive Peptides From Animal Venoms for Colorectal Cancer Therapy: Protocol for a Proof-of-Concept Study (Preprint)
Authors: Shahzadi Syeda Kiran , Karuvantevida Noushad , Banerjee Yajnavalka
Published: June 2021

BACKGROUND

Cancer is the third leading cause of death in the United Arab Emirates (UAE), after cardiovascular diseases and accidents. In the UAE, colorectal cancer (CRC) is the first and fourth most common cancer in males and females, respectively. Several treatment modalities have been employed for cancer treatment, such as surgery, radiotherapy, chemotherapy, hormone replacement therapy, and immunotherapy. These treatment modalities often elicit adverse effects on normal cells, causing toxic side effects. To circumvent these toxicities, there has been an increased impetus towards the identification of alternate treatment strategies. Animal venoms are rich sources of pharmacologically active polypeptides and proteins.

OBJECTIVE

In this proof-of-concept study, we will apply a high-throughput venomics strategy to identify and characterize anticancer bioactive peptides (BAPs) from 20 different animal venoms, specifically targeting CRC. We chose to focus on CRC because it is one of the foremost health issues in the UAE.

METHODS

In the initial study, we will screen 2500 different peptides derived from 20 different animal venoms for anticancer activity specifically directed against 3 CRC cell lines and two control cell lines employing the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) colorimetric assay for cytotoxicity. Of the 20 venoms, 3 that exhibit specific and potent anticancer activity directed against the 3 CRC cell lines will be selected; and from these 3 venoms, the specific peptides with anti-CRC activity will be isolated and characterized.

RESULTS

This study is at the protocol development stage only, and as such, no results are available. However, we have initiated the groundwork required to disseminate the proposed study, which includes culturing of colorectal cancer cell lines and preparation of venom screens.

CONCLUSIONS

In summary, the proposed study will generate therapeutic leads to manage and treat one of the leading health issues in the UAE, namely, CRC.

INTERNATIONAL REGISTERED REPORT

PRR1-10.2196/31128
The shallow bond: the profit motive figuring into Virginia Woolf’s feminist message
Authors: Khmiri Dr. Mariem
Published: June 2021

Woolf’s vocabulary of feminist emancipation was the vector of her migration towards the genre of the novel. For all the vindictiveness it bears against gender inequality, exploring feminism as potential (i.e., as future-oriented) was not untouched by the writer’s inward-turned contradictions despite her choice of the variety of the narrative to intercept the strain of reminiscence (therefore the sentimentalism) of her poetry. “After being ill and suffering every form and variety of nightmare” (Letters IV, 231), Virginia Woolf “by the light of reason, tr[ies] to put into prose” (ibid) her idea of female empowerment to “keep entirely off” (ibid) the danger of patriarchy. Proving the efficiency of her feminist message as an author was within Woolf’s battle against a stretched life of introversion with a view to explore the broader opportunity presented by prose. However, a conspicuous part of her mental instability was Woolf’s unclear relation to the profit motif behind the project of female authorship which acquired a significance that always threatened to frustrate her very feminist concept.
Long-term solar variability deduced from changes in the atmospheric 14C production rate
Authors: Otaola J. A. , Zenteno G.
Published: June 2021

Un análisis espectral de la producción de 14C en la atmósfera (300-1900 d.C) evidencia la existencia de oscilaciones superseculares en la actividad solar. Se somete a prueba la significación y estabilidad de estas oscilaciones mediante la reproducción del registro histórico. La extensión de este registro hacia el futuro muestra que una nueva oscilación del tipo Sporer, similar a la ocurrida durante el siglo XV, es muy probable que ocurra de nuevo alrededor del año 2300.
Computational Investigation of Square Embedded Delamination of a Composite Laminate using Surface based Cohesive Contact Behavior
Authors: Vishwanath K. S.
Published: June 2021

The fiber reinforced polymer laminates have found extensive applications because of its advantages over other materials in terms of thrust to weight ratio, strength to weight ratio, manufacturing benefits such as tailoring, resistance to erosion and corrosion and so on. In the transverse direction, strength, stiffness and stability are comparatively less so that a failure mechanism called interface delamination comes into picture due to poor manufacturing or when tools are dropped that would create an impact load. In this paper, Surface based Cohesive contact behavior is implemented at the interface between base and sub laminate to investigate for 60mm square embedded buckling driven delamination growth. The computational prediction of delamination growth initiation is obtained by solving a HTA/6376C composite laminate specimen for geometric non linearity using SC8R continuum shell elements of Abaqus CAE and by plotting the inplane loads versus out of plane displacements.
Coal Production Analysis using Machine Learning
Authors: Sujatha CN
Published: June 2021

Coal will keep on giving a significant segment of energy prerequisites in the US for at any rate the following quite a few years. It is basic that exact data portraying the sum, area, and nature of the coal assets and stores be accessible to satisfy energy needs. It is likewise significant that the US separate its coal assets productively, securely, and in a naturally mindful way. A restored center around government support for coal-related examination, facilitated across offices and with the dynamic cooperation of the states and modern area, is a basic component for every one of these necessities. In this project we attempt to predict the coal production using various features given the data set. We attempt to implement regression algorithms and find the best algorithm along with fine tuning the parameters of the algorithm. The existing system uses the linear regression model one of the main issues with this basic linear regression is that it does not have a regularization parameter and hence overfits the data. The system also does not provide enough pre-processing and visualization or Exploratory Data Analysis (EDA). We aim to build advanced regression models like ridge and lasso regression and also fine tune the parameters of the model. These models would be trained on a data set which will be engineered carefully after performing the feature engineering.
Customer Behavior Analysis using Machine Learning
Authors: Roy Mrs. T. L. Deepika
Published: June 2021

RFM (Recency, Frequency, Monetary) investigation is a demonstrated showcasing model for conduct based client division. It groups clients dependent on their exchange history – how as of late, how frequently and what amount they buy.RFM helps partition clients into different classes or groups to distinguish clients who will react to advancements and how. This RFM examination depends on a blend of three boundaries. For instance, we can say that individuals who spend the most on items are our best clients. A large portion of us coincide and think about something very similar. In any case, Imagine a scenario in which they were bought just a single time. Or on the other hand an extremely quiet past? Consider the possibility that they are done utilizing our item. would they be able to in any case be viewed as your best clients? Most likely not. Making a decision about client esteem from only one perspective will give you a mistaken report of your client base and their lifetime. That is the reason, the RFM model joins three diverse clients ascribed to rank clients. In the event that they purchased in the recent past, they get higher focus. On the off chance that they purchase ordinarily, they get a higher score. What's more, on the off chance that they spend greater, they get more focus. Thus, we Combine these three scores to make the RFM score. At long last we can portion the client data set into various gatherings dependent on this RFM score.
A Survey on Secure Ranked Keyword Search over Outsourced Encrypted Cloud Data
Authors: Tidke Akash
Published: June 2021

In this paper we present a survey on keyword based searching algorithms. Various searching techniques are used for retrieving the encrypted data from cloud servers. This survey work involves a comparative study of these keyword based searching algorithms. It concludes that till now multi-keyword ranked search MRSE scheme is the best methodology for searching the encrypted data.
Case Study on Challenges and Barriers of Electric Vehicle in India
Authors: Sarkar Prantik
Published: June 2021

Electrical Vehicles can be considered as an essential option for reducing greenhouse gases emission in transport sector. Electrical Vehicles reduces the dependency on fossil fuels such as diesel, petrol etc , also it promotes large scale renewable deployment. However there are various barriers against electrical vehicles in Indian scenario which need to be overcome. This paper provides a general overview on EVs and analysis of barriers against the use of EVs in India. There are some essential barriers such as lack of charging facilities, higher price of EVs as compared to internal combustion vehicles and poor long term planning. So when renewable sources are not available, special features of EVs are mandatory for their operation.