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2020

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Articles 1 - 30 of 3193

Full-Text Articles in Life Sciences

A Review Of The Effects Of Dietary Restriction, Dehydration, And Caffeine Withdrawal On Cognition: Implications For A Disabled Submarine Scenario, Sarah Chabal Dec 2020

A Review Of The Effects Of Dietary Restriction, Dehydration, And Caffeine Withdrawal On Cognition: Implications For A Disabled Submarine Scenario, Sarah Chabal

Journal of Human Performance in Extreme Environments

In the event that submariners become trapped aboard a disabled submarine (DISSUB), they must perform a multitude of cognitively demanding tasks in order to maximize their likelihood of survival. During this time, submariners will also be forced to endure poor living conditions, including drastic changes to their nutrition. These nutritional changes have the potential to impair submariners’ cognitive functioning and affect operational performance, which could jeopardize survival; however, the effects of DISSUB nutrition on cognitive performance are not well understood. This review first describes the unique nutritional conditions that submariners will experience in a DISSUB scenario, including the change to …

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Effects Of Leaching On The Reclamation Of Saline Soils As Affected By Different Organic And Inorganic Amendments, Sajal Roy, Nasrin Chowdhury Dec 2020

Effects Of Leaching On The Reclamation Of Saline Soils As Affected By Different Organic And Inorganic Amendments, Sajal Roy, Nasrin Chowdhury

Journal of Environmental Science and Sustainable Development

Soil salinity, which poses one of the greatest threats to sustainable crop production worldwide, can be ameliorated through various approaches, such as leaching, mulching, and amendment application. The effects of leaching and amendments on saline soil reclamation have been studied separately, but their interaction is poorly elucidated. Therefore, a column experiment was designed with soils that were subjected to leaching with 2 and 4 pore volume (PV) of water and compared with non-leached soils (NLS) to observe the effects of leaching on saline soil and leachate characteristics under different organic (vermicompost [VC] and wood ash [WA]) and inorganic (zeolite) amendments …

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Impact Of Excessive Pumping On Groundwater Quality: The Arsenic Problem Of The Ganges–Meghna–Brahmaputra Delta In Southeast Asia, Rhitwik Chatterjee, Mousumi Chowdhury Dec 2020

Impact Of Excessive Pumping On Groundwater Quality: The Arsenic Problem Of The Ganges–Meghna–Brahmaputra Delta In Southeast Asia, Rhitwik Chatterjee, Mousumi Chowdhury

Journal of Environmental Science and Sustainable Development

This review of the impact of large-scale pumping on arsenic distribution reveals that groundwater-fed irrigation and domestic withdrawal impart tremendous stress on the limited groundwater resource base and disrupts the dynamic equilibrium of the groundwater system of the Ganges–Meghna–Brahmaputra (GMB) delta in Southeast Asia. Excessive groundwater extraction through pumping affects the groundwater quality in three major ways. First, excessive pumping transports atmospheric oxygen and organic-rich surface water to the subsurface. Second, it promotes arsenic build up in surface soil irrigated with arsenic-laced groundwater. Finally, it shifts groundwater replenishment zones lying at various depths near extraction points, thus, carrying dissolved arsenic …

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Diversity And Damage Assessment Of Snail In Cultivated Crops Of Neelabut Bagh Azad Jammu And Kashmir (Pakistan), Abu Ul Hassan Faiz, Lariab Zahra Faiz Dec 2020

Diversity And Damage Assessment Of Snail In Cultivated Crops Of Neelabut Bagh Azad Jammu And Kashmir (Pakistan), Abu Ul Hassan Faiz, Lariab Zahra Faiz

Journal of Bioresource Management

The present study was conducted to study diversity and damage assessment of snails in cultivated crops and ornamental plants. The study revealed two types of snail species Macrochlamys indica and Indoplanorbis exustus in the study area. The sampled plots of tomato, Karam, Palak, Dhania, Maize, Fresh beans, Sunflowers, Aloe Vera, Loki, Pumpkin, Bitter guard, Kheera, Kachmach, Hund were taken. The study revealed that at Neelabut, when 39 plants of Fresh beans were examined out of them 18 were found damaged and the damage percentage was 46%, 38 plants of sunflowers were examined and 17 (45%) were found damaged, 85 plants …

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Preliminary Phytochemical Screening, Proximate Analysis, Antioxidant And Antibacterial Activities Of An Algal Species Of Hydrodictyon Reticulatum, Mubashrah Munir, Arshad Mahmood Khan, Rahmatullah Qureshi, Sidra Murtaza, Mehmooda Munazir Dec 2020

Preliminary Phytochemical Screening, Proximate Analysis, Antioxidant And Antibacterial Activities Of An Algal Species Of Hydrodictyon Reticulatum, Mubashrah Munir, Arshad Mahmood Khan, Rahmatullah Qureshi, Sidra Murtaza, Mehmooda Munazir

Journal of Bioresource Management

The freshwater algae grow in a wide range of aquatic habitats across the globe and are rich in secondary metabolites. The present study was designed to conduct the phytochemical screening, proximate analysis, antioxidant and antibacterial activities of water net (Hydrodictyon reticulatum), an algal weed from Pakistan. The pure and dried algal mass was crushed into a fine powder and four solvent-based extracts were used for phytochemical screening. The results of preliminary qualitative screening indicated the presence of flavonoids, phenols, quinones, steroids, resins, anthraquinones, glycosides, lignin, proteins, saponins, tannins, reducing sugars, alkaloids, terpenoids, fats, and oils, whereas the quantification …

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Population Density, Habitat Characteristics And Preferences Of Red Fox (Vulpes Vulpes) In Chakwal, Pakistan, Amir Naseer, Muhammad Bilal, Umar Naseer, Naureen Mustafa, Bushra Allah Rakha Dec 2020

Population Density, Habitat Characteristics And Preferences Of Red Fox (Vulpes Vulpes) In Chakwal, Pakistan, Amir Naseer, Muhammad Bilal, Umar Naseer, Naureen Mustafa, Bushra Allah Rakha

Journal of Bioresource Management

The Red fox (Vulpes vulpes) is a least concern carnivore according to the IUCN Red List of Threatened Species (2016). However, in Pakistan Red fox is considered as Near Threatened (NT), due to habitat destruction and depletion of food resources. The objective of the study was to identify habitat preferences and population density of Red fox in District Chakwal, Pakistan. Line transect census method was used to estimate the population density of Red fox through direct sighting and indirect method of burrow counting, presence of footprints and scats. A total of 10 transects were carried out at three …

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Were Late Gomphotheres (Plio-Pleistocene) Of The Siwaliks At More Stress As Compared To Early Gomphotheres (Middle To Late Miocene)?, Muhammad Ameen, Abdul Majid Khan, Muhammad Tahir Waseem, Rana Manzoor Ahmad, Ayesha Iqbal, Amtur Rafeh, Muhammad Imran Dec 2020

Were Late Gomphotheres (Plio-Pleistocene) Of The Siwaliks At More Stress As Compared To Early Gomphotheres (Middle To Late Miocene)?, Muhammad Ameen, Abdul Majid Khan, Muhammad Tahir Waseem, Rana Manzoor Ahmad, Ayesha Iqbal, Amtur Rafeh, Muhammad Imran

Journal of Bioresource Management

Gomphotheres existed in the Siwaliks from the middle Miocene (14.2Ma) to the middle Pleistocene (0.8Ma) and became extinct later on. In this paper, we tried to discuss the reasons of such extinction of gomphotheres in the lower Pleistocene time span by considering Linear Enamel Hypoplasia (LEH) among 114 isolated tooth samples to assess whether ecological changes correlate with the stress factor in gomphotheres. For this purpose, the Siwalik gomphotheres were divided into two Groups viz. early gomphotheres (middle Miocene to late Miocene) and late gomphotheres (Pliocene to middle Pleistocene). We presented the hypothesis, that as the gomphotheres are characterized by …

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A Preliminary Study On The Small Population Paradigm And Nesting Biology Of Rose-Ringed Parakeets (Psittacula Krameri) In Gujar Khan, Pakistan, Muhammad Bilal, Muhammad Huzaifa Zahid, Khalid Mahmood, Abdullah Ibrahim, Ali Hasnain Mosvi, Amir Naseer, Sadia Munir Dec 2020

A Preliminary Study On The Small Population Paradigm And Nesting Biology Of Rose-Ringed Parakeets (Psittacula Krameri) In Gujar Khan, Pakistan, Muhammad Bilal, Muhammad Huzaifa Zahid, Khalid Mahmood, Abdullah Ibrahim, Ali Hasnain Mosvi, Amir Naseer, Sadia Munir

Journal of Bioresource Management

Rose-ringed parakeet (P. krameri) is commonly found native psittacid in Pakistan. It is most popular companion bird in Pakistan. It is an unprotected species as per The Punjab Wildlife Act, 1974. The objectives of the present study were to study its population paradigm and basic nesting biology in the Gujar Khan, Punjab, Pakistan. Previously, no studies were carried out to assess its live and vacant nest cavities, nesting site, nest height, cavity position on substrate, and potential roosts in the area. Moreover, this study also assesses the potential threats and factors in this area and conservation of the …

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Audits For The Minimization Of Eco-Anxiety In The World Economy, Karina Nazarova, Volodymyr Hordopolov, Mariia Nezhyva, Viktoriia Mysiuk, Tetiana Kopotiienko Dec 2020

Audits For The Minimization Of Eco-Anxiety In The World Economy, Karina Nazarova, Volodymyr Hordopolov, Mariia Nezhyva, Viktoriia Mysiuk, Tetiana Kopotiienko

Journal of Environmental Science and Sustainable Development

The global pandemic of 2019–2020 is changing not only the lives of citizens, but also approaches to business management. The activities of audit companies have not escaped. Problematic and debatable issues need to be addressed to formulate a comprehensive approach to audits in a transformative economic environment and minimize the global economy's eco-anxiety. The purpose of the article is to determine the role of the audit in minimizing the eco-anxiety of the world economy. The study's materials were indicators of the spread of the COVID-19 pandemic in the world, public writings of scientists, official reports of international organizations, regulations, and …

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Pillars Of Sustainable Development–Land Capability And Conceptual Project Design, Ian D. Hollingsworth Dec 2020

Pillars Of Sustainable Development–Land Capability And Conceptual Project Design, Ian D. Hollingsworth

Journal of Environmental Science and Sustainable Development

Conserving land capability is a pillar of sustainable development strategy. Land units comprising unique combinations of native vegetation, soils, geology, and landforms are used to interpret local environmental processes and land capabilities. An emerging practice is extrapolation modeling of edaphic parameter surfaces in Digital Soil Mapping (DSM) using statistical correlation. Commercial studies of land capability for sustainable development, including a mine closure in a national park, another closure for grazing land restoral, urban stormwater flood mitigation, and wind farm development in plantation forestry, are presented to illustrate applications and review the utility of DSM data. The first case, a mine …

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Agricultural Pesticide Use In The Upper Citarum River Basin: Basic Data For Model-Based Risk Management, Rosetyati R. Utami, Gertjan W. Geerling, Indah R. S. Salami, Suprihanto Notodarmojo, Ad M.J. Ragas Dec 2020

Agricultural Pesticide Use In The Upper Citarum River Basin: Basic Data For Model-Based Risk Management, Rosetyati R. Utami, Gertjan W. Geerling, Indah R. S. Salami, Suprihanto Notodarmojo, Ad M.J. Ragas

Journal of Environmental Science and Sustainable Development

Since the middle of the 20th century, pesticide use has been a primary foundation of global agricultural development. However, the massive usage of pesticides can have detrimental impacts on human health and the environment, particularly in the aquatic ecosystem. This study determined the use of pesticides in the agricultural area of the Upper Citarum River Basin (UCRB); a crucial water resource on Java Island. A survey of 174 farmers was conducted in eight districts along the basin by using the random walk and quota sampling method. The questionnaire was designed to acquire data about the amount and types of pesticides …

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Comparative Effects Of Different Types Of Biochar On Physical Properties Of Soil And Growth Of Maize, Muhammad Iqbal, Muhammad Yasir, Atif Javed, Sarmad Tausif Ahmad Dec 2020

Comparative Effects Of Different Types Of Biochar On Physical Properties Of Soil And Growth Of Maize, Muhammad Iqbal, Muhammad Yasir, Atif Javed, Sarmad Tausif Ahmad

Journal of Bioresource Management

The current pot trial was conducted to estimate the impacts of different types of biochar on the growth and nutrients availability of maize (Zea mays) and their effects on the properties of soil. Treatments including four different feedstock based biochar i.e wheat straw, rice husk, corn cob and wood bark were applied to the soil in 10 kg pots @ 1.5% w/w. The experiment was carried out using complete randomized design (CRD). The crop was harvested after the plants have completed their vegetative growth. Physiological parameters of the crop (plant height, leaf area, chlorophyll content) were measured before …

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Evaluation Of The Diversity Of Durum Wheat Coleoptera (Triticum Durum Desf.) In The Region Of Sigus Oum El Bouaghi (Eastern Algeria), Amokrane Assia, Khammar Hichem, Hadjab Ramzi, Saheb Menouar Dec 2020

Evaluation Of The Diversity Of Durum Wheat Coleoptera (Triticum Durum Desf.) In The Region Of Sigus Oum El Bouaghi (Eastern Algeria), Amokrane Assia, Khammar Hichem, Hadjab Ramzi, Saheb Menouar

Journal of Bioresource Management

The Oum El Bouaghi region in Eastern Algeria, long considered as a cereal-growing area is nowadays a durum wheat production region par excellence. Although the damage caused by Coleoptera is very significant, studies on the knowledge of their diversity are few and remain limited for some entomological groups. Our work is the first step to evaluate the diversity of Coleoptera and the long-term impact of taking biological management measures against harmful fauna in favour of more environment friendly agriculture. To assess the beetle community, different sampling methods were combined (Barber trap, coloured traps, mowing net and sight hunting). Evaluation of …

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New Record Of Two Rodent Species From Khenchela Region (East Of Algeria), Hakim Drouai, Yassine Nouidjem, Fateh Mimeche Dec 2020

New Record Of Two Rodent Species From Khenchela Region (East Of Algeria), Hakim Drouai, Yassine Nouidjem, Fateh Mimeche

Journal of Bioresource Management

Mus spretus is endemic to the Mediterranean region and Jaculus orientalis is only found in North Africa and Saudi Arabia. Their presence in Algeria was previously evidenced in other studies, the present paper focuses on the recent discovery of the Jaculus orientalis Erxleben, 1777 and Mus spretus Lataste, 1883 in a new locality of the East of Algeria, in Khenchela region (Aurès Mountain), based on weight and external measurements. The sampling period took four months between April and July 2019. This observation will enrich the knowledge of Algerian Rodents fauna in general and of Khenchela in particular.

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Avifauna Diversity Of Darmalak Ali Kach Game Reserve At District Kohat, Khyber Pakhtunkhwa, Pakistan, Gauhar Zaman, Naveed Ullah Atif, Nazim Ali, Hamid Ullah Dec 2020

Avifauna Diversity Of Darmalak Ali Kach Game Reserve At District Kohat, Khyber Pakhtunkhwa, Pakistan, Gauhar Zaman, Naveed Ullah Atif, Nazim Ali, Hamid Ullah

Journal of Bioresource Management

Darmalak Ali Kach Game Reserve (District Kohat, Khyber Pakhtunkhwa, Pakistan), has variety of habitats. Field survey was conducted using count method; block method etc. The total number of individuals counted during study was 528. Shannon-Wiener Diversity Index was 3.195 which indicate a high level of biodiversity. The highest number of each bird species observed and data was tabulated and statistical analysis was carried out using Microsoft Excel sheets. Relative Abundance of bird species was also calculated along with species evenness, richness and Shannon-Wiener Diversity Index. During the present survey 27 bird species, belonging to 8 orders and 15 families, were …

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Capparis Decidua Edgew (Forssk.) Stem Extract Alleviates The Water Stress Perturbations In Wheat (Triticum Aestivum L.) At Early Growth Stage, Muhammad Nawaz, Qasim Ali, Muhammad Azeem, Fehmina Asghar, Hasnain Ishaq, Naeem Iqbal, Sajid -Ur-Rahman Dec 2020

Capparis Decidua Edgew (Forssk.) Stem Extract Alleviates The Water Stress Perturbations In Wheat (Triticum Aestivum L.) At Early Growth Stage, Muhammad Nawaz, Qasim Ali, Muhammad Azeem, Fehmina Asghar, Hasnain Ishaq, Naeem Iqbal, Sajid -Ur-Rahman

Journal of Bioresource Management

Water shortage is one of the major limiting factors of crop productivity worldwide. This study was planned to explore the impact of Capparis decidua stem extract on wheat varieties (FSD-2008, 12066 and 13348) under water stress condition. Water deficit condition negatively impacted the seedling germination, growth, photosynthetic pigments and ions uptake capacity. Water limited condition significantly (p≤0.05) increased time to attain 50% germination, lipid peroxidation, H2O2 and enhanced the antioxidant mechanism to overcome the oxidative stress. Different concentrations of C. decidua extract i.e. Not Soaking (NS), 10%, 20%, 30% and 40% were used for seed …

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An Overview Of Plastic Waste Recycling In The Urban Areas Of Java Island In Indonesia, Nurdiana Darus, Maya Tamimi, Silvi Tirawaty, Muchtazar Muchtazar, Dini Trisyanti, Rangga Akib, Dyota Condorini, Khair Ranggi Dec 2020

An Overview Of Plastic Waste Recycling In The Urban Areas Of Java Island In Indonesia, Nurdiana Darus, Maya Tamimi, Silvi Tirawaty, Muchtazar Muchtazar, Dini Trisyanti, Rangga Akib, Dyota Condorini, Khair Ranggi

Journal of Environmental Science and Sustainable Development

Plastic products have been an integral part of human lives. However, concerns over plastic pollution have been growing. Thus, alternative practices that allow more sustainable production and consumption pattern are urgently needed. Improving plastic recycling management is one of the solutions to prevent an increase in plastic pollution. This paper aims to uncover the potential of plastic recycling, to define factors that can leverage the expansion of the recycling process, and to evaluate possible measures that can realize such expansion, especially given the limited literature on these topics. Therefore, a four-month study, which involved two months of rigorous primary survey …

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Foreword From Handling Editor - 5th Edition, Ahyahudin Sodri Dec 2020

Foreword From Handling Editor - 5th Edition, Ahyahudin Sodri

Journal of Environmental Science and Sustainable Development

We are delighted to present the 5th edition of JESSD, published in December 2020. We have selected ten of the best articles for this edition from Environmental Science and Sustainable Development topic.

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High-Intensity Interval Training Dan Fartlek Training: Pengaruhnya Terhadap Tingkat Vo2 Max, Rifqi Festiawan, Suharjana Suharjana, Galih Priyambada, Yudha Febrianta Dec 2020

High-Intensity Interval Training Dan Fartlek Training: Pengaruhnya Terhadap Tingkat Vo2 Max, Rifqi Festiawan, Suharjana Suharjana, Galih Priyambada, Yudha Febrianta

Jurnal Keolahragaan

Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh High-Intensity Interval Training (HIIT) dan Fartlek Training terhadap tingkat VO2 Max Atlet Soedirman Expedition VII. Metode penelitian ini adalah pre-experimental dengan desain two group pre-test post-test design. Populasi penelitian berjumlah 20 orang dan menggunakan teknik total sampling sehingga diperoleh jumlah sampel 20 Orang. Instrumen Penelitian yang digunakan yaitu Multistage Fitness Test (MFT). Penelitian ini dilaksanakan pada Januari 2019 sampai dengan Juni 2019. Teknik analisis data yang digunakan adalah paired t-test dan independent t-test. Hasil penelitian menunjukkan bahwa ada pengaruh High-Intensity Interval Training (HIIT) terhadap peningkatan tingkat VO2 …

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Preliminary Active Tectonic Assessment Of Wadi Ghoweiba Catchment, Gulf Of Suez Rift, Egypt, Integration Of Remote Sensing, Tectonic Geomorphology, And Gis Techniques, Abdelrahman Khalifa Dec 2020

Preliminary Active Tectonic Assessment Of Wadi Ghoweiba Catchment, Gulf Of Suez Rift, Egypt, Integration Of Remote Sensing, Tectonic Geomorphology, And Gis Techniques, Abdelrahman Khalifa

Al-Azhar Bulletin of Science

The Wadi Ghoweiba catchment located at the northeastern part of the western coast of the Gulf of Suez, Egypt has been examined to evaluate the impact of tectonic activity remarks through a significant analysis of the morphotectonic indexes that were calculated using geographic information systems (GIS) technique. Four morphotectonic indexes, including mountain front sinuosity, valley floor width-to-valley height ratio, rock strength, and stream length gradient index were applied and processed for recognition of tectonic activity evidence. The results computed from theses indexes were combined to examine different fracture and/or fault segments of the catchment. The values of the measured morphotectonic …

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Latihan Bodyweight Dengan Total-Body Resistance Exercise (Trx) Dapat Meningkatkan Kekuatan Otot, Ahmad Nasrulloh, Iswadi Sigit Wicaksono Dec 2020

Latihan Bodyweight Dengan Total-Body Resistance Exercise (Trx) Dapat Meningkatkan Kekuatan Otot, Ahmad Nasrulloh, Iswadi Sigit Wicaksono

Jurnal Keolahragaan

Penelitian ini bertujuan untuk mengetahui pengaruh latihan bodyweight dengan Total-body Resistance Exercise (TRX) terhadap Peningkatan Kekuatan Otot. Penelitian ini menggunakan metode penelitian eksperimen. Desain penelitian dalam penelitian ini adalah menggunakan one-group pretest-posttest design. Subjek dalam penelitian ini adalah members The Fitlab Hotel Tara. Instrumen yang digunakan leg and back dynamometer untuk mengukur kekuatan otot tungkai dan punggung, hand grip dynamometer untuk mengukur kekuatan otot tangan, dan pull and push dynamometer untuk mengukur kekuatan menarik dan mendorong otot lengan. Teknik analisis data menggunakan uji hipotesis dengan analisis uji t (paired sample t test …

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Evolution Of Island, Dominique Kongsli Dec 2020

Evolution Of Island, Dominique Kongsli

The STEAM Journal

Evolution of Island emerged from the depths of an ocean of blue paint. My process involves observation of nature: I remember scuba diving in Thailand in the Andaman Sea and having a spiritual experience underwater while observing Christmas-tree worms pop in and out of the coral.

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Animal-Human Art, Trace Johansson Dec 2020

Animal-Human Art, Trace Johansson

The STEAM Journal

Art work that shows the bond between animal and human

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What Can We Learn About Research Narratives From Professional Storytellers?, Kim Wilkins, Helen Marshall Dec 2020

What Can We Learn About Research Narratives From Professional Storytellers?, Kim Wilkins, Helen Marshall

The STEAM Journal

This short note on practice reflects on how “research narrative” is a much-used, but misunderstood term. Compelling stories about our research are important: for public-facing communications and for academic tenure confirmation and promotion. They are also important for researchers to gain a clearer sense of their own vision and values in the research process: they are not just a communication skill, they’re a career skill. But often researchers in STEM disciplines do not have the practical skills to write stories. We draw on our own practice as creative writers to share some simple and effective methods to bring arts expertise …

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Visual Arts Enhance Instruction In Observation And Analysis Of Microscopic Forms In Developmental And Cell Biology, Max Ezin, Christina Noravian, Amira Mahomed, Adam Lyle, Aveleen Gill, Tamira Elul Dec 2020

Visual Arts Enhance Instruction In Observation And Analysis Of Microscopic Forms In Developmental And Cell Biology, Max Ezin, Christina Noravian, Amira Mahomed, Adam Lyle, Aveleen Gill, Tamira Elul

The STEAM Journal

Two important skills for scientists in developmental and cell biology, as well as in fields such as neurobiology, histology and pathology, are: 1) observation of features and details in microscopic images of cells, and 2) quantification of cellular features observed in microscopic images. However, current training in developmental and cell biology does not emphasize observation and quantitative analysis of microscopic images, and it is unclear how best to teach students these skills. Here, we describe our experiences applying visual artistic approaches to instruct undergraduate and graduate students in how to observe and analyze cellular forms in microscopic images. At Loyola …

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Numerical Study To Evaluate The Performance Of Non-Uniform Stepped Spillway Using Ansys-Cfx, Shawnm M. Saleh, Sarhang M. Husain Dec 2020

Numerical Study To Evaluate The Performance Of Non-Uniform Stepped Spillway Using Ansys-Cfx, Shawnm M. Saleh, Sarhang M. Husain

Polytechnic Journal

The main features that attract hydraulic engineers for designing stepped spillways are their ability to lose a large portion of the flow energy and add or increase aeration to the flow naturally. Hence, smaller size stilling basin and no aeration device may require. This study aims to find the amount of energy dissipation rate and the location of inception point over non-uniform stepped spillway. The numerical 2D ANSYS-CFX code is applied to generate and run thirty-two models of different configurations using two different moderate slopes (1 V:2 H and 1 V:2.5 H) as most of the downstream slopes designed for …

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Simulation Of Mosul Dam Break Using Finite Volume Method, Ayhan H. Saleem, Jowhar R. Mohammad Dec 2020

Simulation Of Mosul Dam Break Using Finite Volume Method, Ayhan H. Saleem, Jowhar R. Mohammad

Polytechnic Journal

Mosul dam is an earth-fill embankment located north of Iraq on the Tigris River forming a reservoir with 11.11 km3 water storage capacity which is the largest dam in the country. The dam is built on a rock bed foundation, in which the dissolution process is dynamic in the zone where gypsum and anhydrite layers present. During the construction development seepage locations were found in the dam foundation and the grouting process is in progress until now to control this problem. Therefore, the possibility of the Mosul dam break is highlighted by previous studies. In this research, a FORTRAN code …

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Effect Of Straw Throwing Method And Some Operational Parameters On The Performance Of A Small Rectangular Baler, Affan O. Hussein Dec 2020

Effect Of Straw Throwing Method And Some Operational Parameters On The Performance Of A Small Rectangular Baler, Affan O. Hussein

Polytechnic Journal

The experiment was carried out on a private farm in Karak village in 2017 to study the effects of the method of throwing the straw behind the combine harvester and some operational factors on the performance of a small rectangular baler. The field was planted with wheat (Triticum spp.) and barley (Hordeum vulgare). A small rectangular baler type (Ćicoria 454), Italian made was used to pick up and bale the straws, which were thrown as heaps and windrows in the field. The results obtained showed that picking up the straw as windrows improved the baler’s performance over the heaps in …

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Prevalence Of Needlestick Injuries Among Healthcare Workers In Rizgary Teaching Hospital, Salah H. Ali, Peshtewan D. Majeed, Umed A. Huwiezy Dec 2020

Prevalence Of Needlestick Injuries Among Healthcare Workers In Rizgary Teaching Hospital, Salah H. Ali, Peshtewan D. Majeed, Umed A. Huwiezy

Polytechnic Journal

Needlestick injury in healthcare settings is a global issue. Despite being recognized for many years, needlestick and sharps injuries (NSIs) continue to present a risk of occupational exposure to blood-borne pathogens for health care works (HCWs). The objectives of the study were to determine the prevalence of needlestick injuries among HCWs in Rizgary Teaching Hospital and to identify the causes of needlestick injuries. A cross-sectional study was conducted on 76 healthcare workers in Rizgary Teaching hospital; there were a total of 45 males, 31 females. The data collections were administrated using face-to-face interviews to ensure a good response rate and …

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Evaluation Of Bond Strength And Dimensional Accuracy Of Soft Liner To Microwave Cured Denture Base Material, Shilan H. Fatah, Radhwan H. Hasan Dec 2020

Evaluation Of Bond Strength And Dimensional Accuracy Of Soft Liner To Microwave Cured Denture Base Material, Shilan H. Fatah, Radhwan H. Hasan

Polytechnic Journal

Today, soft liners are being widely used in dental practices by their application to the inner surfaces of the denture with hopes to evenly distribute any potential uneven forces, and to provide a cushion effect to the oral mucosa of the patient mouth. The aim of this study is to investigate the influence of (a) polymethylmethacrylate (PMMA) denture base material curing technique, (b) Molloplast B soft liner curing technique, and (c) PMMA surface treatment, on the “shear bond strength” (SBS) between the Molloplast B liner and PMMA. A total of 80 samples were used in this study to evaluate the …

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