A new perspective on the relationship between the construction industry performance and the economy outcome- a literature review

The attempts to analyze the relationship between the construction industry and economic growth have integrated many different methods. The process has become to be perceived as “construction economics” analysis. It is conceptualized as a procedure where construction industries outcomes implement increasingly more relevant for nation’s development benefits throughout mostly economic interdependencies that are emphasized as financial sources. Concurring with the present-day standards for affirming an industry, in considerably most facets of analysis result interpreted on a solely economic aspect which is not a conspicuous and significant indicator for construction industry initiates through its resolution outcome. Whereas proceed competently and developed directions from scholars or experts are the determinants of success that emerge due to reviews of relevant practical and research inferences. Literature for analysis on output in the construction industry within the economics aspect is further inscribed in detail. Consequently, relocating the ideology used to examine construction activates implications on development augmentation and shifts the schemes for classifying construction output in the numerous conservative analytic techniques towards more functional delineation. Considering and optimize more relevant details in the systematic process of quantifying the construction value analysis will implicate a reflected actual and detailed results of industrial or enterprise entities on both theoretical and empirical perception for construction economics

TRACE METALS IN SURFACE SEAWATERS IN THE RED SEA AND GULF OF ADEN-YEMEN

Objectives: The present work has been done considering the constant spread pollution of heavy metals in water bodies. Pollution among water bodies is a major global problem. This contaminates not only the water but also the sediment and aquatic life such as fish. The water samples were collected from the three different Cities of Yemeni coasts. Aden, Al-Hodeidah and AL-Mukalla were chosen for the sample collection. Methods: The study was carried out in the all three seasons of winter 2011, summer 2012 and winter 2013 in order to check seasonal variation of heavy metal pollution.Total 81 samples of each Water were analyzed. The four heavy metals lead, Cadmium, Mercury and arsenic which are considered highly toxic were detected in the samples in the year 2010, 2012 and 2013. The heavy metal concentrations in the samples were measured using the Atomic Absorption Spectrophotometer. Results:  The obtained results showed that the concentration (mg/l) of the heavy metal in seawater (Pb-0.061±0.005, Cd-0.007±0.001, Hg-0.007±0.0005 and As-0.008±0.0003) mg/l. The obtained results showed that the heavy metals concentrations were significantly higher, during the summer season for seawater samples in all stations during the study period. Because of the frequent use of water in the hot summer, results in an increase in sewage, as well as to the high rate of environmental variables in the summer. Conclusion:  By comparing the results obtained with other data obtained from the local and international studies, in addition to, comparing the results standard levels of these metals contaminated and adopted internationally and domestically and the pollution levels in Yemen is currently within the lower limits of pollution. However, the study recommends continuing the study of these pollutants and other contaminants and their impact on the environment and marine life especially invertebrates.                Peer Review History: Received 22 November 2017;   Revised 8 January; Accepted 11 January, Available online 15 January 2018 Academic Editor: Dr. Asia Selman Abdullah, Al-Razi university, Department of Pharmacy, Yemen, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file:        Reviewer's Comments: Average Peer review marks at initial stage: 5.5/10 Average Peer review marks at publication stage: 7.5/10 Reviewer(s) detail: Dr. Asia Selman Abdullah, Al-Razi university, Department of Pharmacy, Yemen, [email protected] Essam Mohamed Eissa, Beni-Suef – 32 Tahrir St, Egypt, [email protected] Similar Articles: ANALYTICAL ENVIRONMENTAL STUDY ON THE POLLUTION EFFECT OF HEAVY METALS IN SOME TYPES OF THE FISH IN YEME

INVESTIGATION OF TOXIC METALS POLLUTION IN WATER, SEDIMENT AND FISH AT ADEN COAST, GULF OF ADEN, YEMEN

Objectives: This study investigates concentrations of toxic metals, Lead and Cadmium in water, sediments and fish organs (muscle, liver and gill). Collected from Aden coast, gulf of Aden in Yemen. Water samples and sediment were taken from nine locations. Methods: Four fish species were collected (Lethrinus mahsena; Epinephelus  areolatus; Thunnus tonggol and  Sphyraena jello) were collected from the local commercial fishermen of Aden city during winter 2011,  Summer 2012 and winter 2013. Results:   Lead concentration in sea water is 0.045-0.055 mg/l and Lead concentration in Sediment 33.512-35.726 µg/g dry wt., Cadmium concentration in sea water 0.006-0.010 mg/l, Cadmium concentration in sediment 1.944-2.004 µg/g dry wt., lead concentration is the highest  in most fish gill samples 0.047-0.727 µg/g dry wt., where as in muscles is the lowest 0.020-0.116 µg/g dry wt., and  in liver was 0.038- 0.267 µg/g dry wt. Cadmium concentration is the highest  in most fish gill samples 0.033-0.609 µg/g dry wt., where as in muscles is the lowest 0.018- 0.073 µg/g dry wt., and  in liver was 0.028-0.209 µg/g dry wt. Conclusion:  By comparing the results obtained with other data obtained from the local and international studies, in addition to, comparing the results standard levels of these metals contaminated and adopted internationally and domestically and the pollution levels in Yemen is currently within the lower limits of pollution. Peer Review History: Received 22 November 2017;   Revised 8 January; Accepted 11 January, Available online 15 January 2018 Academic Editor: Ahmad Najib, Universitas Muslim Indonesia,  Indonesia, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file:        Reviewer's Comments: Average Peer review marks at initial stage: 5.5/10 Average Peer review marks at publication stage: 7.5/10 Reviewer(s) detail: Dr. Nicola Micale, University of Messina, Italy,  [email protected] Dr. Omid Gholami, Sabzevar University of Medical Sciences, Iran, [email protected] Similar Articles: ANALYTICAL ENVIRONMENTAL STUDY ON THE POLLUTION EFFECT OF HEAVY METALS IN SOME TYPES OF THE FISH IN YEME

ANALYTICAL ENVIRONMENTAL STUDY ON THE POLLUTION EFFECT OF HEAVY METALS IN SOME TYPES OF THE FISH IN YEMEN

Objectives: The fish samples were collected from the three different cities of Yemeni coasts. Aden, Al-Hodeidah and AL-Mukalla were chosen for the sample collection. Lethrinusmahsena, Thunnustonggol, Sphyraenajello and Epinephelusareolatus fish samples were considered for the study as they are more common eatable fish among the population. Methods: The study was carried out in the all three seasons of winter 2011,  summer 2012 and winter 2013  in order to check seasonal variation of heavy metal pollution.Total  Fish (108 samples of each muscles, liver and gills) were analyzed. The four heavy metals lead, Cadmium, Mercury and arsenic which are considered highly toxic were detected in the samples in the year 2010, 2012 and 2013. Results:  The mean concentration of Pb, Cd, Hg and as in muscle was 0.101±0.012, 0.046±0.010, 0.058±0.002 and 0.089±0.002µg.g-1 dry wt. respectively; whereas in liver was 0.196±0.033, 0.132±0.020, 0.102±0.007 and 0.115±0.0005µg.g-1 dry wt. respectively; whereas in gill was 0.294±0.042, 0.196±0.063, 0.016±0.0006 and 0.034±0.0005µg.g-1 dry wt. respectively. The results showed that, the heavy metals concentrations were high in stations AL-Hudaydah and AL-Mukalla and low in station of Aden. Also the heavy metals concentrations were high in Seasons summer and low in Seasons winter. Conclusion:  From the heavy metal concentrations mentioned above we can see that somewhere the concentration is crossing the limits as permissible by the World Health Organization. It suggests a high risk to the health of human being on the consumption of contaminated fish. Therefore it is recommended that the practice of trace element detection should be continued in order to update whether the heavy metal concentration is above or below the permissible limits and if it is above the limit then precautions must be taken to avoid possible consumption of contaminated eatables. Peer Review History: Received 22 November 2017;   Revised 7 January; Accepted 10 January, Available online 15 January 2018 Academic Editor:  Dr. A.A. Mgbahurike, University of Port Harcourt, Nigeria, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file:        Reviewer's Comments: Average Peer review marks at initial stage: 5.5/10 Average Peer review marks at publication stage: 7.5/10 Reviewer(s) detail: Islamudin Ahmad, Mulawarman University, Samarinda, Indonesia, [email protected] Dr. Kingsley C Anukam, University of Benin, Nigeria, [email protected] Similar Articles: TRACE METALS IN SURFACE SEAWATERS IN THE RED SEA AND GULF OF ADEN-YEME

DZ-BAU2021-14N AS NOVEL PYRAZOLOPYRIDINE NANOCRYSTALS: APPRAISAL OF ANTICANCER ACTIVITY AGAINST HCT-116 AND HT-29 COLORECTAL CANCER CELL LINES

Mentioning DZ-BAU2021-14 (C19H17N5O2,347.370 g/mol) developed in BAU Labs, its promising preliminary antitumor effect nominated it to be selected as a lead antiproliferative compound against colorectal cancer cell lines owing to its proved Cyclin Dependent Kinase 2 (CDK2) inhibition (Kassem et al., 2021). Solving many problems restricting traditional cancer therapy, nanotechnology is offering safety margins and targeted delivery of poorly soluble drug. The potential effect of this compound was combined with the advantages of nanotechnology, precisely nanocrystals to achieve better antiproliferative and hopeful less cytotoxic patterns. The nanocrystals DZ-BAU2021-14N were prepared by an antisolvent precipitation technique using Poloxamer 407 and Cremophor® RH 40 as stabilizers. The nanocrystals were obtained with a nanometric particle size (89.80 ± 11.2 nm) and a negative zeta potential (-32.6 ± 0.50 mV) and were stable at 4 ± 0.5°C with no significant change in particle size or zeta potential. The anticancer activity of DZ-BAU2021-14 and DZ-BAU2021-14N were assessed. Their antiproliferative effects against colorectal cancer cell lines HCT-116 and HT-29 were studied via viability assay. In addition, their cytotoxic effects on non-tumorigenic cell lines NCM-460D were evaluated and respective IC50 values were determined. Different responses were obtained; DZ-BAU2021-14N provided lower IC50 on HCT-116 compared to the free drug DZ-BAU2021-14 (27 and 22 µM, respectively). The safety profile of the free drug was reflected by its IC50 on NCM-460D of 200µM while that of drug nanocrystals showed relative cytotoxicity with IC50 of 33µM, and this requires further investigation to study this response

Burnout among surgeons before and during the SARS-CoV-2 pandemic: an international survey

Background: SARS-CoV-2 pandemic has had many significant impacts within the surgical realm, and surgeons have been obligated to reconsider almost every aspect of daily clinical practice. Methods: This is a cross-sectional study reported in compliance with the CHERRIES guidelines and conducted through an online platform from June 14th to July 15th, 2020. The primary outcome was the burden of burnout during the pandemic indicated by the validated Shirom-Melamed Burnout Measure. Results: Nine hundred fifty-four surgeons completed the survey. The median length of practice was 10 years; 78.2% included were male with a median age of 37 years old, 39.5% were consultants, 68.9% were general surgeons, and 55.7% were affiliated with an academic institution. Overall, there was a significant increase in the mean burnout score during the pandemic; longer years of practice and older age were significantly associated with less burnout. There were significant reductions in the median number of outpatient visits, operated cases, on-call hours, emergency visits, and research work, so, 48.2% of respondents felt that the training resources were insufficient. The majority (81.3%) of respondents reported that their hospitals were included in the management of COVID-19, 66.5% felt their roles had been minimized; 41% were asked to assist in non-surgical medical practices, and 37.6% of respondents were included in COVID-19 management. Conclusions: There was a significant burnout among trainees. Almost all aspects of clinical and research activities were affected with a significant reduction in the volume of research, outpatient clinic visits, surgical procedures, on-call hours, and emergency cases hindering the training. Trial registration: The study was registered on clicaltrials.gov "NCT04433286" on 16/06/2020

SAR monostatique et bistatique (étude et analyse des méthodes de reconstruction d'imagerie radar)

Les travaux de recherche présentés dans ce mémoire s'inscrivent dans le cadre de l'étude et de l'analyse des méthodes d'imagerie radar monostatique en vue de les étendre à des systèmes radars bistatiques, avec la prise en compte de la polarisation à l'émission et à la réception. La configuration choisie est constituée d'un émetteur, d'une scène à imager et d'un récepteur, l'ensemble étant animé d'un mouvement quelconque. Nous avons défini les surfaces équi-distances et les surfaces équi-dopplers pour différentes configurations géométriques de liaison radar bistatique. L'analyse de ces surfaces permet d'extraire l'information liée à un pixel donné de la surface à imager lorsque la liaison bistatique est en mouvement. L'objectif est de modéliser un système capable de reconstruire l'image radar de la scène observée dans une base de polarisation définie. Un outil de simulation a été réalisé ; il s'intégrera dans une chaîne de développement ultérieure afin de tester de nouvelles méthodes de caractérisation de scènes basées sur une analyse polarimétrique.The research works presented in this dissertation fall under the framework of the study and analysis of monostatic mapping radar methods in order to extend them to bistatic radar systems, taking into account polarisation of the emission and the reception. The selected configuration consists of a transmitter, a scene and a receiver, the whole system is animated of an unspecified movement. We defined iso-distances surfaces and iso-dopplers surfaces for various geometrical configurations of bistatic connection radar. The analysis of these surfaces makes it possible to extract information related to a given pixel from surface to map when the bistatic connection is moving. The objective is to model a system able to rebuild radar images of scenes in a definite polarisation base. A simulation tool was carried out, it will be integrated, later, in a development chain in order to test new methods of scenes characterisation based on polarimetric analysis.NANTES-BU Sciences (441092104) / SudocSudocFranceF

Linguistic Politeness and Media Education: A Lingua-Pragmatic Study of Changing trends in ‘Forms of Address’ in Egyptian Media Talk Shows

This study addressed the issue of linguistic politeness and media education in its socio-cultural perspectives through the adoption of a lingua pragmatic approach of the Egyptian media, particularly their talk shows which are recognized education platforms in pragmatics. The selected talk shows from the Egyptian TV channels aired during the period 2011 to 2013 were used to investigate the changes that were felt in linguistic politeness, particularly in ‘forms of addresses used by presenter(s) of these shows. The study premised that these changes could contribute to media education in the form of enhancing media literacy about lingua-pragmatic aspects of ‘forms of address’ used on various media platforms. The study also followed the proposition that there existed a close relationship between linguistic politeness and pragmatics that often makes media as a means of social education. Secondly, a ‘form of address’ constitutes a well-defined media-educational pragmatic subject as revealed in its distinct lexical classes such as titles, personal names, nicknames and pronominal systems. These pragmatic strategies are often culturally bound and systematically applied by speakers within their community. The study cites instances of change in ‘Forms of address’ and the linguistic politeness culturally linked with the Arabic language. The findings reveal that how socio-cultural and political events greatly influenced the use of lingua-pragmatic terms like forms of address and the level of politeness embedded in them. The study has educational implications as it reveals how social and environmental factors shape people’s opinions and their use of language. The findings of this study would also offer novel learning opportunities for media personnel

False-positive cerebrospinal fluid cryptococcus antigen in Libman-Sacks endocarditis

BACKGROUND: Cryptococcus meningoencephalitis is a serious opportunistic infection associated with high morbidity and mortality in immunocompromised hosts, particularly patients with advanced AIDS disease. The diagnosis is established through cerebrospinal fluid (CSF) cryptococcus antigen detection and cultures. Cryptococcus antigen testing is usually the initial test of choice due its high sensitivity and specificity along with the quick availability of the results. CASE REPORT: We hereby report a case of a false-positive CSF cryptococcus antigen assay in a patient with systemic lupus erythematosus presenting with acute confusion. While initial CSF evaluation revealed a positive cryptococcus antigen assay, the patient\u27s symptoms were inconsistent with cryptococcus meningoencephalitis. A repeat CSF evaluation, done 3 days later, revealed a negative CSF cryptococcus antigen assay. CONCLUSION: Given the patient\u27s active lupus disease and the elevated antinuclear antibody titers, we believe that the initial positive result was a false positive caused by interference from autoantibodies

Relation Between Erectile Dysfunction and Silent Myocardial Ischemia in Diabetic Patients: A Multidetector Computed Tomographic Coronary Angiographic Study

AbstractIntroductionErectile dysfunction (ED) can precede coronary artery disease. In addition, silent myocardial ischemia (SMI) is more common in diabetic patients and is a strong predictor of cardiac events and death.AimTo evaluate the presence of SMI in patients with diabetes and ED using multidetector computed tomographic coronary angiography (MDCT-CA).MethodsThis study evaluated patients with diabetes and ED without any history of cardiac symptoms or signs. Erectile function was evaluated with the Sexual Health Inventory for Men score, erection hardness score (EHS), and maximal penile circumferential change by an erectometer. MDCT-CA was used for the detection of coronary artery stenosis.Main Outcome MeasuresSexual Health Inventory for Men score, EHS, maximal penile circumferential change, and coronary artery stenosis by MDCT-CA.ResultsOf 20 patients (mean age = 61.45 ± 10.7 years), MDCT-CA showed coronary artery stenosis in 13 (65%) in the form of one-vessel disease (n = 6, 30%), two-vessel disease (n = 2, 10%), and three-vessel disease (n = 5, 25%). Fifty percent of patients showed at least 50% vessel lumen obstruction of the left anterior descending coronary artery, which was the most commonly affected vessel (55%). Fifteen percent (3 of 20) of patients had greater than 90% stenosis, and two of them underwent an immediate coronary angioplasty with stenting to prevent myocardial infarction. Maximum coronary artery stenosis was positively correlated with age (P = 0.016, r = 0.529) and negatively correlated with EHS (P = .046, r = −0.449). Multivariate regression analysis using age and EHS showed that age was the only independent predictor of SMI (P = .04).ConclusionMDCT-CA can be a useful tool to identify SMI in diabetic patients with ED, especially in those of advanced age and/or with severe ED