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Development And Analysis Of Green Pathways For Biphasic Extraction At High Pressure, Kyle L. Cogswell Jun 2022

Development And Analysis Of Green Pathways For Biphasic Extraction At High Pressure, Kyle L. Cogswell

USF Tampa Graduate Theses and Dissertations

Technological advancements over the last century have allowed for advancements not only in science and engineering but medicine as well. The use of supercritical fluids for processing continues today after its initial boom in the latter part of the last century; often being paired with co-solvents to extend the range of use for this technique. Supercritical fluid extraction may be paired with pressurized warm water extraction to yield a new intensified process for biphasic extractions that improves efficiency and reduces waste. This combination may be used to replace sequential extraction processes or supercritical extraction processes that make use of organic …


Exploring Toluene Biosynthesis In Microbial Consortia Derived From Sediments And Superfund Site Groundwater, Raymond J. Poche Jun 2022

Exploring Toluene Biosynthesis In Microbial Consortia Derived From Sediments And Superfund Site Groundwater, Raymond J. Poche

LSU Master's Theses

While the aromatic hydrocarbon toluene is widely regarded as a contaminant associated with discharges of crude oil and refined petroleum products (e.g., gasoline), the enzyme phenylacetate decarboxylase catalyzes the decarboxylation of phenylacetate to yield toluene. Research described in this thesis further investigated toluene biosynthesis by a microbial consortium originating from chlorinated solvent-contaminated groundwater near Baton Rouge, Louisiana. In anoxic growth media supplemented with phenylacetate as a precursor, toluene accumulation was found to be maximal at near-neutral to slightly acidic pHs (toluene accumulation greater than 1 mg/L at pH in the range of 5.6 to 7.6, but was not observed for …


Effect Of Kaolin On Biogenic Coalbed Methane Production And The Response Of Microbial Community, He Huan, Huang Xinying, Huang Zaixing, Zhang Qian, Chen Zihao, Zhao Han, Ren Hengxing, Huang Guanhua Jun 2022

Effect Of Kaolin On Biogenic Coalbed Methane Production And The Response Of Microbial Community, He Huan, Huang Xinying, Huang Zaixing, Zhang Qian, Chen Zihao, Zhao Han, Ren Hengxing, Huang Guanhua

Coal Geology & Exploration

Kaolin is a common inorganic mineral in nature, which can promote the growth and metabolism of microorganisms. There is a large amount of kaolin in coal, however, there are few reports about its bio-gas production of coal. In order to investigate the effect of kaolin on biogas production, the coal obtained from Yulin, Shaanxi Province was taken as the research object, domesticated microorganisms were taken as the research flora, and different qualities of kaolin were added into the culture media to make biological simulation of gas production. The changes of CH4 content, volatile fatty acids (VFAs) concentration, coenzyme F …


Sequence-Paleogeography And Coal Accumulation Of The Paleogene Hunchun Formation In The Hunchun Basin, Hou Haihai, Li Qiangqiang, Shao Longyi, Fan Xuejie, Liang Guodong, Li Yanan Jun 2022

Sequence-Paleogeography And Coal Accumulation Of The Paleogene Hunchun Formation In The Hunchun Basin, Hou Haihai, Li Qiangqiang, Shao Longyi, Fan Xuejie, Liang Guodong, Li Yanan

Coal Geology & Exploration

The Hunchun Basin is an important coal-bearing region in Jilin Province, northeastern China. The analysis of the sedimentary paleogeography of the Paleogene Hunchun Formation and coal-accumulation law in the sequence framework provides a theoretical basis for future coal and coalbed methane exploration. The lithofacies, sedimentary systems, sequence paleogeography, and coal accumulation characteristics were analyzed based on regional geology, drilling cores and well logging data. The results show five rock types, including gravel, sandstone, siltstone, mudstone, and combustible organic rock, and twelve lithofacies. The Hunchun Formation was divided into three third-order sequences by three sequence interfaces, including the regional unconformity surface, …


Positive Rate-Dependent Action Potential Prolongation By Modulating Potassium Ion Channels, Candido Cabo Jun 2022

Positive Rate-Dependent Action Potential Prolongation By Modulating Potassium Ion Channels, Candido Cabo

Publications and Research

Pharmacological agents that prolong action potential duration (APD) to a larger extent at slow rates than at the fast excitation rates typical of ventricular tachycardia exhibit reverse rate dependence. Reverse rate dependence has been linked to the lack of efficacy of class III agents at preventing arrhythmias because the doses required to have an anti-arrhythmic effect at fast rates may have pro-arrhythmic effects at slow rates due to an excessive APD prolongation. In this report we show that, in computer models of the ventricular action potential, APD prolongation by accelerating phase 2 repolarization (by increasing IKs) and decelerating …


Evaluation Of Aluminum Dissolution, Current Density, And Pitting Patterns During Electrocoagulation, Monica Castro Carias Jun 2022

Evaluation Of Aluminum Dissolution, Current Density, And Pitting Patterns During Electrocoagulation, Monica Castro Carias

USF Tampa Graduate Theses and Dissertations

Electrocoagulation (EC) is a sustainable water treatment process involving the generation of coagulants on-site through the application of a voltage on metal (usually aluminum or iron alloys). The factors that impact EC system performance have been well researched, however further research is needed on the factors that impact anodic dissolution of aluminum electrodes, especially when the technology is transferred to full-scale applications. Electrode fouling is one of the factors that can impact dissolution of the anode during EC due to the formation of a protective oxide/hydroxide layer on the electrode surface. Previous studies have addressed electrode fouling by reversing polarity, …


Engineering The Lanthanide And Actinide Dopants Effects On The Local Environment Of Luminescent Complex Metal Oxide, Yuming Wang Jun 2022

Engineering The Lanthanide And Actinide Dopants Effects On The Local Environment Of Luminescent Complex Metal Oxide, Yuming Wang

LSU Doctoral Dissertations

Rare earth (RE) based phosphor materials are widely used as luminescent probes in high-temperature optical thermometry where standard methods are unsuitable. The current generation of luminescent thermometers lacks stability and energy transport within the operating temperature ranges. The challenge is developing an oxide-based material with high luminescence intensity and thermal sensitivity/stability, suitable for an optical temperature sensor/thermal barrier coating. This work aims to develop a fundamental understanding of the local environment surrounding RE or actinide dopants in metal oxide hosts to engineer their luminescence property. To maximize the luminescence, the local symmetry, doping concentration, and radiative/non-radiative relaxation pathways must be …


Improved Performance Of Silica-Supported La0.5Ba0.5Feo3 In The Reverse Water Gas Shift - Chemical Looping Process For Carbon Dioxide Reduction – A Density Functional Theory Study, Jiawei Guo Jun 2022

Improved Performance Of Silica-Supported La0.5Ba0.5Feo3 In The Reverse Water Gas Shift - Chemical Looping Process For Carbon Dioxide Reduction – A Density Functional Theory Study, Jiawei Guo

USF Tampa Graduate Theses and Dissertations

Global warming is increasingly obvious, and the reduction of greenhouse gases is an effective way to heal. Increasing the efficiency of catalysts that is applied in the industry can significantly reduce the emission of greenhouse gases. Reverse water gas shift chemical looping (RWGS-CL) is a promising reaction to convert CO2 to CO. La0.5Ba0.5FeO3 (LBF) is a good candidate for RWGS-CL, which shows increased conversion yield when supported on silica. This research focuses on identifying the mechanism of RWGS-CL via silica-supported LBF by exploring the oxygen vacancy formation energy (EO-vac). Density Functional Theory (DFT) is a powerful computational method to solve …


Zein And Lignin-Graft-Plga Nanoparticles As Agrochemical Delivery Systems To Soybean Plants, Eban A. Hanna Jun 2022

Zein And Lignin-Graft-Plga Nanoparticles As Agrochemical Delivery Systems To Soybean Plants, Eban A. Hanna

LSU Master's Theses

The majority of applied agrochemicals are lost to the environment due to their poor adhesion to plant tissues, resulting in multiple applications and subsequent environmental toxicity. This thesis focuses on reducing these consequences by entrapping agrochemicals in polymeric nanoparticles (PNPs). In the first section, zein nanoparticles (ZNPs) with entrapped methoxyfenozide (MFZ) (209.0 ± 5.6 nm, -42.1 ± 2.1 mV) were synthesized and used to facilitate the translocation of MFZ to the leaves and stems of soybean plants, as measured by LC-MS, under hydroponic conditions. The agrochemical concentration increased within the leaves over time from 0.04 to 2.35 μg/g at 0.2 …


Examining Metal Contents In Primary And Secondhand Aerosols Released By Electronic Cigarettes, Kashala Fabrice Kapiamba, Weixing Hao, Stephen Adom, Wenyan Liu, Yue-Wern Huang, Yang Wang Jun 2022

Examining Metal Contents In Primary And Secondhand Aerosols Released By Electronic Cigarettes, Kashala Fabrice Kapiamba, Weixing Hao, Stephen Adom, Wenyan Liu, Yue-Wern Huang, Yang Wang

Chemistry Faculty Research & Creative Works

The usage of electronic cigarettes (ECs) has surged since their invention two decades ago. However, to date, the health effects of EC aerosol exposure are still not well understood because of insufficient data on the chemical composition of EC aerosols and the corresponding evidence of health risks upon exposure. Herein, we quantified the metals in primary and secondhand aerosols generated by three brands of ECs. By combining aerosol filter sampling and inductively coupled plasma mass spectrometry (ICP-MS), we assessed the mass of metals as a function of EC flavoring, nicotine concentration, device power, puff duration, and aging of the devices. …


Metal-Free Synthesis Of N-Heterocycles Via Intramolecular Electrochemical C-H Aminations, Huiqiao Wang, Yongjun Zheng, Hucheng Xu, Jiaru Zou, Congrui Grace Jin Jun 2022

Metal-Free Synthesis Of N-Heterocycles Via Intramolecular Electrochemical C-H Aminations, Huiqiao Wang, Yongjun Zheng, Hucheng Xu, Jiaru Zou, Congrui Grace Jin

Department of Civil and Environmental Engineering: Faculty Publications

N-heterocycles are key structural units in many drugs, biologically interesting molecules and functional materials. To avoid the residues of metal catalysts, the construction of N-heterocycles under metal-free conditions has attracted much research attention in academia and industry. Among them, the intramolecular electrochemical C-H aminations arguably constitute environmentally friendly methodologies for the metal-free construction of N-heterocycles, mainly due to the direct use of clean electricity as the redox agents. With the recent renaissance of organic electrosynthesis, the intramolecular electrochemical C-H aminations have undergone much progress in recent years. In this article, we would like to summarize the advances in this research …


Preliminary Study Of Shape-Memory Alloy Torsional Tubes As Thermal Management Actuators Under Non-Ideal Conditions, Paula Sanjuan Espejo, Samuel Desloover, Devon Hardy, Mark Ricklick, Frederick Calkin, David Foutch Jun 2022

Preliminary Study Of Shape-Memory Alloy Torsional Tubes As Thermal Management Actuators Under Non-Ideal Conditions, Paula Sanjuan Espejo, Samuel Desloover, Devon Hardy, Mark Ricklick, Frederick Calkin, David Foutch

Publications

Shape-memory alloys (SMAs) have been used in many engineering applications because of their shape-memory effect and pseudoelasticity. SMA behavior is well understood under steady and constant temperature and loading conditions, whereas transient and non-ideal conditions effects should be further investigated. In this research, SMA torque tubes are studied for use in thermal management applications as self-regulated actuators responding to a process fluid with changes in temperature, with the goal of improved system efficiency by keeping components at an optimal temperature. When utilized in a thermal management configuration, it is likely that the SMA’s thermal environment will be different than that …


Functional Requirements For A Samd14-Capping Protein Complex In Stress Erythropoiesis, Suhita Ray, Linda Chee, Yichao Zhou, Meg A. Schaefer, Michael J. Naldrett, Sophie Alvarez, Nicholas T. Woods, Kyle J. Hewitt Jun 2022

Functional Requirements For A Samd14-Capping Protein Complex In Stress Erythropoiesis, Suhita Ray, Linda Chee, Yichao Zhou, Meg A. Schaefer, Michael J. Naldrett, Sophie Alvarez, Nicholas T. Woods, Kyle J. Hewitt

Nebraska Center for Biotechnology: Faculty and Staff Publications

Acute anemia induces rapid expansion of erythroid precursors and accelerated differentiation to replenish erythrocytes. Paracrine signals—involving cooperation between stem cell factor (SCF)/Kit signaling and other signaling inputs—are required for the increased erythroid precursor activity in anemia. Our prior work revealed that the sterile alpha motif (SAM) domain 14 (Samd14) gene increases the regenerative capacity of the erythroid system in a mouse genetic model and promotes stress-dependent Kit signaling. However, the mechanism underlying Samd14’s role in stress erythropoiesis is unknown. We identified a protein-protein interaction between Samd14 and the α- and β-heterodimers of the F-actin capping protein (CP) complex. Knockdown of …


Exploring The Metabolic Landscape Of Pancreatic Ductal Adenocarcinoma Cells Using Genome-Scale Metabolic Modeling, Mohammad Mazharul Islam, Andrea Goertzen, Pankaj K. Singh, Rajib Saha Jun 2022

Exploring The Metabolic Landscape Of Pancreatic Ductal Adenocarcinoma Cells Using Genome-Scale Metabolic Modeling, Mohammad Mazharul Islam, Andrea Goertzen, Pankaj K. Singh, Rajib Saha

Department of Chemical and Biomolecular Engineering: Faculty Publications

Pancreatic ductal adenocarcinoma (PDAC) is a major research focus because of its poor therapy response and dismal prognosis. PDAC cells adapt their metabolism to the surrounding environment, often relying on diverse nutrient sources. Because traditional experimental techniques appear exhaustive to find a viable therapeutic strategy, a highly curated and omics-informed PDAC genome-scale metabolic model was reconstructed using patient-specific transcriptomics data. From the model-predictions, several new metabolic functions were explored as potential therapeutic targets in addition to the known metabolic hallmarks of PDAC. Significant downregulation in the peroxisomal beta oxidation pathway, flux modulation in the carnitine shuttle system, and upregulation in …


In Vitro Regeneration Of Avocado (Persea Americana) West Indian Rootstock Cv.Lula Via Tissue Culture, Nasser Sholi, Hiba Qasrawi Jun 2022

In Vitro Regeneration Of Avocado (Persea Americana) West Indian Rootstock Cv.Lula Via Tissue Culture, Nasser Sholi, Hiba Qasrawi

Palestine Technical University Research Journal

Avocado (Persea AmericanaMill)isa subtropical fruitand ishighly recommended for itsnutritional value. Avocado is knownfor its sensitivityto biotic and a biotic stress.Oneway toovercome this problem is to grafton tolerance rootstocks thatare mainly obtained via seeds thataresubjected to genetic variation.Two different types of explants: axillary bud and shot tip meristemwereused in this study. Axillary buds gave the best results intermsof the maximum number of shoots when compared totheapical meristem in all treatments,regardless of the mediatype. The highest shoot induction in Woody Plant Medium(WP)was better than Murashigeand Skooge(MS) mediumregardless of the explant type. Explant responded better in BAP-containing medium than TDZ and KN. The …


التلوث الميكروبي والعناصر الثقيلة في بيئة عمل كلية العلوم الهندسية والتقنية ‏‎–‎ جامعة سبها – ليبيا. (لوحة مفاتيح الكمبيوتر كحالة دراسة)‏, Amnah Saber, Asma Abdullah Jun 2022

التلوث الميكروبي والعناصر الثقيلة في بيئة عمل كلية العلوم الهندسية والتقنية ‏‎–‎ جامعة سبها – ليبيا. (لوحة مفاتيح الكمبيوتر كحالة دراسة)‏, Amnah Saber, Asma Abdullah

Palestine Technical University Research Journal

The paper aims to investigate the concentrations of Pb, Cd, Cr and Ag element of as well as microbial contamination in computer keyboard within the work environment at the Faculty of Engineering and Technology Sciences (FETS) at Sebha University, Libya. The results showed that the mean elemental concentrations (mg/g) in the samples were Pb (14.2±12.9), Ag (7.49±1.44), Cr (6.09±2.88) and Cd (4.43±1.48). The most commonly found heavy metals were Pb (44.1%), followed by (Ag 23.3), (Cr 18.9), and (Cd 13.8) %. The concentrations were higher than the limits allowed by EPA 2009. The concentration of Cd also exceeded the European …


Soft Wheat Quality Parameters Evaluation By Near Infrared Spectroscopy: From Field To Shelf Analysis, Kliton Bylykbashi Jun 2022

Soft Wheat Quality Parameters Evaluation By Near Infrared Spectroscopy: From Field To Shelf Analysis, Kliton Bylykbashi

International Journal of Business and Technology

Near InfraRed Spectroscopy (NIRS) is a powerful tool that is widely applied in agro-food science and technology research for qualitative as well as quantitative analysis. It is one analytical technique that is taking place in this sector due to its low costs, reliability, rapidity and not invasive / non-destructive nature. NIRS along with chemometric modelling can provide accurate assessment of various grain quality attributes and the chemical composition of grain. The present work investigates the ability of using NIRS for the evaluation of different wheat quality parameters by using a portable spectroradiometer working in Visible – Short Wave InfraRed (Vis-SWIR: …


Types Of Suturing Materials In Oral Surgery, Biljana Evrosimovska Jun 2022

Types Of Suturing Materials In Oral Surgery, Biljana Evrosimovska

International Journal of Business and Technology

Aim: In everyday surgical practice, different types of suturing materials are available. They play an important role in tissue healing, facilitate the process of hemostasis, enable the reconstruction and reunification of tissue whose integrity has been compromised during surgery or trauma. The aim of this study is to examine the reaction of the tissue to different suturing materials, as well as to determine the speed of wound healing and the incidence of complications after their use, in order to prove which of them is most suitable for oral surgery procedure. Material and methods: These researches were done based on analyzes …


Optofluidic Manipulation With Nanomembrane Platforms Used For Solid-State Nanopore Integration, Zachary J. Walker Jun 2022

Optofluidic Manipulation With Nanomembrane Platforms Used For Solid-State Nanopore Integration, Zachary J. Walker

Theses and Dissertations

Nanopore technology has introduced new techniques for single particle detection and analysis. A nanopore consists of a small opening in a membrane on the nanometer scale. Nanopores are found in nature and are utilized for transporting molecules through biological membranes. Researchers have been able to mimic naturally forming biological nanopores and utilize them for a variety of sensing applications. Nanopores, fabricated either organically or inorganically, can be used for detecting biomarkers such as proteins, nucleic acids, and metabolites that translocate the membrane by way of the nanopore. Constant ionic current flow is measured through the nanopore by way of a …


Multifunctional Hybrid Mos2-Pegylated/Au Nanostructures With Potential Theranostic Applications In Biomedicine, Thiago R. S. Malagrino, Anna Paula Godoy, Juliano M. Barbosa, Abner G. T. Lima, Nei C. O. Sousa, Jairo J. Pedrotti, Pamela S. Garcia, Roberto M. Paniago, Lídia M. Andrade, Jaime Taha-Tijerina Jun 2022

Multifunctional Hybrid Mos2-Pegylated/Au Nanostructures With Potential Theranostic Applications In Biomedicine, Thiago R. S. Malagrino, Anna Paula Godoy, Juliano M. Barbosa, Abner G. T. Lima, Nei C. O. Sousa, Jairo J. Pedrotti, Pamela S. Garcia, Roberto M. Paniago, Lídia M. Andrade, Jaime Taha-Tijerina

Informatics and Engineering Systems Faculty Publications

In this work, flower-like molybdenum disulfide (MoS2) microspheres were produced with polyethylene glycol (PEG) to form MoS2-PEG. Likewise, gold nanoparticles (AuNPs) were added to form MoS2-PEG/Au to investigate its potential application as a theranostic nanomaterial. These nanomaterials were fully characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), photoelectron X-ray spectroscopy (XPS), Fourier-transformed infrared spectroscopy (FTIR), cyclic voltammetry and impedance spectroscopy. The produced hierarchical MoS2-PEG/Au microstructures showed an average diameter of 400 nm containing distributed gold nanoparticles, with great cellular viability on tumoral and non-tumoral cells. This aspect makes them with multifunctional characteristics with potential application …


Microheater Stimulation Platform For Neural Cells, Haley Royce Jun 2022

Microheater Stimulation Platform For Neural Cells, Haley Royce

USF Tampa Graduate Theses and Dissertations

Electrical stimulation is the basis of many biomedical devices like cochlear implants,pacemakers, and retinal implants. In these systems, current is applied to a desired tissue to effectively stimulate it. Unfortunately, this is not localized as the current will spread through the tissue, limiting the spatial resolution. Thus, alternative forms of stimulation are needed to improve device precision and resolution. This project explores microheaters as a stimulation platform that can be easily integrated with existing biomedical devices. Microheaters produce heat via the Joule heating effect wherein electrical current is run through high resistance materials to output thermal energy. They are highly …


أنماط التعلم المفضلة لدى طلبة جامعة فلسطين التقنية خضوري وأثر بعض المتغيرات عليها, Murad Awadallah, Raed Frehat Jun 2022

أنماط التعلم المفضلة لدى طلبة جامعة فلسطين التقنية خضوري وأثر بعض المتغيرات عليها, Murad Awadallah, Raed Frehat

Palestine Technical University Research Journal

This research aimed at investigating about the preferred learning styles and the effect of some variables such as the university branch, gender, education program, academic year, specialization, and cumulative average. To achieve that, the two researchers used the Index of learning styles (ILS) developed by Felder and Solomon (Lit zingeret al., 2005) consisting of 44 items to evaluate learning preferences, and which was applied on purpose cluster sample of (345) students. After using the SPSS statistical analysis program, the results of the study show that the preferred learning style in descending order is (active-reflective, visual verbal, sequential-global, and sensing-intuitive). The …


إثر استخدام شبكات التواصل الاجتماعية على الأداء الأكاديمي للطلبة, Abeer Qashou, Rania Abdalla Jun 2022

إثر استخدام شبكات التواصل الاجتماعية على الأداء الأكاديمي للطلبة, Abeer Qashou, Rania Abdalla

Palestine Technical University Research Journal

Social Network Sites (SNSs) are widely used by university students these days. The underlying reasons behind this use vary between academic and nonacademic purposes. The question is whether this use influences the students' academic performance or not. The aim of this study is to answer this question by examining the impact of five potential variables on the use of SNS, and the influence of this usage on the students' academic performance at Palestine Technical University-Kadoorie (PTUK). Five variables are included: the gender, age, faculty, duration of use, and computer self-efficacy. Stratified sampling technique was used to gather the required data, …


تأثير استخدام أنواع مختلفة من الأسمدة على نمو ونوعية الخس (Lactuca Sativa L.), Basel Natsheh, Nawaf Abukhalaf Jun 2022

تأثير استخدام أنواع مختلفة من الأسمدة على نمو ونوعية الخس (Lactuca Sativa L.), Basel Natsheh, Nawaf Abukhalaf

Palestine Technical University Research Journal

The experiment was conducted during the period from March to the end of April 2019 to observe the effect of different fertilizer regimes on the growth, quality and yield of lettuce under field conditions. The experiment was consisting of four treatments as well as a control without fertilizer T1, compost T2, compost tea T3 and chemical fertilizer T4, in each treatment 50 replicates were planted. The measurements included wet and dry weight for shoot and root, plant length, and chlorophyll percentage. The study revealed that lettuce's best growth values were obtained with the use of eco-friendly organic fertilizer accompanied by …


التنبؤ بأداء الطلاب بناء على ملف الطالب الأكاديمي, Hadi Khalilia, Thaer Sammar, Yazeed Sleet Jun 2022

التنبؤ بأداء الطلاب بناء على ملف الطالب الأكاديمي, Hadi Khalilia, Thaer Sammar, Yazeed Sleet

Palestine Technical University Research Journal

Data mining is an important field; it has been widely used in different domains. Oneof the fields that make use of data mining is Educational Data Mining. In this study, we apply machine learning models on data obtained from Palestine Technical University-Kadoorie (PTUK) in Tulkarm for students in the department of computer engineering and applied computing. Students in both fields study the same major courses; C++ and Java. Therefore, we focused on these courses to predict student’s performance. The goal of our study is predicting students’ performance measured by (GPA) in the major. There are many techniques that are used …


توصيف المجتمعات البكتيرية في لحم الضأن الفلسطيني بواسطة التنميط الظاهري و تحليل جين 16s Rrna, Wafa Masoud, Mahmoud Hamdan Jun 2022

توصيف المجتمعات البكتيرية في لحم الضأن الفلسطيني بواسطة التنميط الظاهري و تحليل جين 16s Rrna, Wafa Masoud, Mahmoud Hamdan

Palestine Technical University Research Journal

The main purpose of the present study was to isolate, identify and quantify bacteria in Palestinian fresh lamb meat. Phenotyping and 16S rRNA gene sequence analysis was used to identify bacteria present in lamb meat samples. Thirty-four bacterial isolates were obtained from 20 samples of fresh lamb meat collected from 4 meat shops in Tulkarem city in Palestine. Bacterial counts were in a range of 3 x 103 -1.5 x 105 cfu / g with Staphylococcus aureus being the highest in numbers among other bacteria. Enterobacteriaceae and Staphylococ-caceae were the predominant bacterial families detected in fresh lamb meat samples. Two …


تخليق وتقييم إمكانات مضادات الليباز والالتحام الجزيئي لـلمركب الجديد N '- (2-Hydroxy-5-Nitrobenzylidene) Naphthalene-2-Sulfonohydrazide, Sameer Amereih, Abd Daraghmeh, Ismail Warad, Mohammed Al-Nuri Jun 2022

تخليق وتقييم إمكانات مضادات الليباز والالتحام الجزيئي لـلمركب الجديد N '- (2-Hydroxy-5-Nitrobenzylidene) Naphthalene-2-Sulfonohydrazide, Sameer Amereih, Abd Daraghmeh, Ismail Warad, Mohammed Al-Nuri

Palestine Technical University Research Journal

N’-(2-Hydroxy-5-nitrobenzylidene) naphthalene-2-sulfonohydrazide (SB) was prepared by condensation reaction, of naphthalene-2-sulfonylchloride with 2-Hydroxy-5-nitrobenzaldehyde. The Schiff base product (SB) was isolated, purified and then spectrally characterized via UV-Vis, FT-IR, 1H and 13C NMR analysis, where strong evidences confirmed the formation of the desired product. Pancreatic porcine lipase inhibition of the Schiff base product was evaluated and compared with the reference “Orlistat”. The product was an active as a lipase enzyme inhibitor with IC50 42.65±0.97 mcg/ml. The molecular docking of the compound with porcine pancreatic lipase was investigating, the results of theoretical docking explained the experimental one since several hydrogen bonds between the …


Physics-Based Proxy Modeling Of Co2 Sequestration In Deep Saline Aquifers, Aaditya Khanal, Md Fahim Shahriar Jun 2022

Physics-Based Proxy Modeling Of Co2 Sequestration In Deep Saline Aquifers, Aaditya Khanal, Md Fahim Shahriar

Jasper Department of Chemical Engineering Faculty Publications and Presentations

The geological sequestration of CO2 in deep saline aquifers is one of the most effective strategies to reduce greenhouse emissions from the stationary point sources of CO2. However, it is a complex task to quantify the storage capacity of an aquifer as it is a function of various geological characteristics and operational decisions. This study applies physics-based proxy modeling by using multiple machine learning (ML) models to predict the CO2 trapping scenarios in a deep saline aquifer. A compositional reservoir simulator was used to develop a base case proxy model to simulate the CO2 trapping mechanisms (i.e., residual, solubility, and …


A Goal-Driven Framework For Individualised Self-Care For Early-Stage Dementia, Jonathan Turner, Ciaran Nugent, Damon Berry, Dympna O'Sullivan, Michael Wilson, Ann Marron, Julie Doyle Jun 2022

A Goal-Driven Framework For Individualised Self-Care For Early-Stage Dementia, Jonathan Turner, Ciaran Nugent, Damon Berry, Dympna O'Sullivan, Michael Wilson, Ann Marron, Julie Doyle

Articles

For people with early or moderate dementia, there are benefits to them continuing to live in their own homes for as long as possible, both in improved quality of life and associated measures such as increased social contact, increased physical activity and lower use of medication, and reduced costs and burden of care. Tools to help extend period of independent living, and to maintain quality of life in this period, are lacking. Systems exist to monitor individuals for problems, e.g. falls or wandering from the home, but there is scope for development of computerised support to help maintain activity in …


Gross Positioning Device And Related Systems And Methods, Mark A. Reichenbach, Shane M. Farritor Jun 2022

Gross Positioning Device And Related Systems And Methods, Mark A. Reichenbach, Shane M. Farritor

Department of Mechanical and Materials Engineering: Faculty Publications

Disclosed herein are gross positioning systems for use with robotic surgical devices to provide gross positioning of the robotic surgical devices. The gross positioning systems have a base, a first arm link operably coupled to the base, a second arm link operably coupled to the first arm link, a third arm link operably coupled to the second arm link, and a slidable coupling component slidably coupled to the third arm link.