Haile Kassahun

ORCID: 0000-0002-7867-0982
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About
Contact & Profiles
Research Areas
  • Pharmaceutical Quality and Counterfeiting
  • Pharmaceutical Economics and Policy
  • Pharmaceutical studies and practices
  • Antibiotic Use and Resistance
  • Phytochemistry and biological activity of medicinal plants
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Nuclear reactor physics and engineering
  • Heavy Metal Exposure and Toxicity
  • Diverse Scientific Research Studies
  • Heavy metals in environment
  • Nuclear Physics and Applications
  • Advanced MRI Techniques and Applications
  • Essential Oils and Antimicrobial Activity
  • Heavy Metals in Plants
  • Non-Destructive Testing Techniques
  • Pharmaceutical Practices and Patient Outcomes
  • Education and Critical Thinking Development
  • Biosimilars and Bioanalytical Methods
  • Antibiotic Resistance in Bacteria
  • Phytochemistry and Bioactivity Studies
  • Free Radicals and Antioxidants
  • Electrical and Bioimpedance Tomography
  • COVID-19 and Mental Health
  • Drug Solubulity and Delivery Systems
  • Atomic and Subatomic Physics Research

Montreal Neurological Institute and Hospital
2025

McGill University
2025

Wollo University
2018-2024

KU Leuven
2024

Debre Markos University
2022

Addis Ababa University
2018

Background. Most traditional medicines were prepared from plant origins. These plants could be contaminated by heavy metals, pesticides, and/or toxins. Therefore, the aim of present study was to determine level metals such as lead (Pb), cadmium (Cd), chromium (Cr), and copper (Cu) in frequently used herbal preparations sold Northeast Ethiopia estimate their health risks associated with daily intake. Methods. A total 6 randomly collected local shops Dessie Kombolcha town, Ethiopia. The...

10.1155/2020/8883837 article EN cc-by Journal of Chemistry 2020-12-08

Low-field Magnetic Resonance Imaging (MRI) has the potential to provide autonomous accessible neuroimaging in remote communities, particularly Canadian north. Remoteness necessitates that these MRIs be built and maintained within communities. This approach not only ensures remain operational but will also allow youth from communities pursue technical careers at home. The first step this vision is establish resources needed for building are available an educational program give students...

10.3389/fnimg.2024.1521517 article EN cc-by Frontiers in Neuroimaging 2025-01-17

Inappropriate self-medication is a public-health problem worldwide. Major problems associated with include wastage of resources, increased resistance pathogens, and adverse drug reactions.The aim this study was to assess practices factors among undergraduate Wollo University students in Northeast Ethiopia.A cross-sectional conducted 341 university using pretested self-administered questionnaire from January February 2019. Simple random sampling used select participants. Data were collected...

10.2147/rmhp.s266329 article EN cc-by-nc Risk Management and Healthcare Policy 2020-08-01

Background. Excess accumulation of potentially toxic elements in frequently consumed fruits is a serious threat to human health. The aim this study was determine the levels cadmium (Cd), chromium (Cr), copper (Cu), and lead (Pb) estimate noncarcinogenic carcinogenic health risks associated with their daily intake commonly Bahir Dar town, northwest Ethiopia. Methods. Three types (mango, banana, orange) were collected using simple random sampling method from open markets town. Wet digestion...

10.1155/2024/6677324 article EN cc-by International Journal of Food Science 2024-05-15

The aim of this study was to investigate the effects using questioning method on students’ critical thinking (CT) skills. To effect, a pretest-posttest two groups quasi-experimental design employed. Data obtained through tests and focus group discussion. Sixty management students participated in study. While treatment received method, comparison learned conventional method. quantitative data analyzed paired sample t-test while qualitative thematically. findings revealed that there...

10.58314/474567 article EN American Journal of Arts and Educational Administration Research 2022-02-28

Emergence of drug resistance and lack therapeutic efficacy modern antimalarial drugs are the most triggering factors for searching new lead compounds with different mechanisms action. Medicinal plants documented traditional uses a viable option treatment malaria. Traditionally, leaf latex Aloe weloensis has been used in malaria Ethiopia. Hence, this study was undertaken to investigate activity Plasmodium berghei-infected mice. A four-day suppressive test employed evaluate effect plant...

10.1155/2020/1397043 article EN cc-by Journal of Tropical Medicine 2020-08-14

Background: Disposal of pharmaceutical waste among patients is a global challenge especially in developing countries like Ethiopia. Improper medication disposal can lead to health problems and environmental contaminations. Therefore, the present study aimed assess practices unused medications public centers Dessie town, Northeast Methods: A descriptive cross-sectional was conducted 263 four Ethiopia from March June, 2019. Face-to-face interviews using structured questionnaires were used...

10.2174/1574886315666200331140400 article EN Current Drug Safety 2020-03-31

The role of free radical reactions in disease pathology is well known to be involved many acute and chronic disorders human beings, such as diabetes, atherosclerosis, aging, immunosuppression neurodegeneration. search for new drugs plant origin becomes increasingly urgent due drug resistance. Aloe schelpei an endemic species traditionally used the treatment infectious diseases.This study was conducted evaluate scavenging activities leaf latex its isolated compounds.The A. subjected...

10.2147/dddt.s241412 article EN cc-by-nc Drug Design Development and Therapy 2020-03-01

The use of ineffective and poor quality drugs endangers therapeutic treatment may lead to failure. For desired effect, should contain the appropriate amount active pharmaceutical ingredient required physical characteristics.The aim this study was evaluate as well physicochemical bioequivalence different brands furosemide tablets marketed in Bahir Dar, Northwest Ethiopia.Five were purchased from community pharmacies Dar city, Ethiopia. control parameters determined by identification, weight...

10.2147/dddt.s280203 article EN cc-by-nc Drug Design Development and Therapy 2020-11-01

Background: Disposal of pharmaceutical waste among patients is a global challenge, especially in developing countries like Ethiopia. Improper medication disposal can lead to health problems and environmental contamination. Therefore, the present study was aimed assess practices unused medications public centers Dessie town, Northeast Methods: A descriptive cross-sectional survey conducted 263 four Ethiopia from March June 2019. Face-to-face interviews using structured questionnaires were...

10.2147/iprp.s243069 article EN cc-by-nc Integrated Pharmacy Research and Practice 2020-03-01

Good quality drugs fulfilling the regulatory parameters and produced per current good manufacturing (CGMP) standards are very critical for best therapeutic outcome in patient therapy. Hence, this study assesses as well physicochemical bioequivalence of five brands glibenclamide tablets marketed Addis Ababa using vitro vivo methods. Friability, disintegration, dissolution, assay content active ingredients were evaluated methods described British Pharmacopeia (2009) United States (2007). All...

10.1155/2018/7916368 article EN Journal of Pharmaceutics 2018-07-18

In this study, an attempt was made to assess quality as well pharmaceutical equivalence of six brands metformin hydrochloride tablets marketed in Addis Ababa using vitro methods. Friability, disintegration, dissolution and assay for the content active ingredients were evaluated methods described United States pharmacopeia (2007). All complied with official specification hardness, friability, disintegration assay. Five USP tolerance limits but Metformin Denk failed release stated amount....

10.3329/bjsir.v54i2.41674 article EN cc-by-nc Bangladesh Journal of Scientific and Industrial Research 2019-06-01

Malaria is a major health concern in the world general and developing countries particular. Nowadays, control of malaria has ended up steadily more complex due to spread drug-resistant parasites. Medicinal plants are verifiable source compelling antimalarial drugs. The present study was aimed assess vivo activity leaf latex A. melanacantha against Plasmodium berghei mice.Acute oral toxicity assessed mice dose 2,000 mg/kg. A four-day suppressive model utilized investigate plant. Three extract...

10.1155/2021/6690725 article EN cc-by Journal of Tropical Medicine 2021-06-21

Background: Antimicrobial drug therapy problems refer to incorrect and inappropriate utilization of antimicrobials which affect patient's health outcomes results in bacterial resistance. Incorrect use antimicrobial agents is a key driver for the spread Improving has an important effect on patients' health, treatment costs, enhancing quality life. Hence, aim present study was assess among patients Outpatient Department Ataye hospital, Northeast Ethiopia. Methods: A hospital-based...

10.2147/idr.s257086 article EN cc-by-nc Infection and Drug Resistance 2020-08-01

Background This study aimed to comparatively evaluate the quality and physicochemical bioequivalence of commercially available brands hydrochlorothiazide (HCT) tablets in community pharmacies Dessie town, Northeast Ethiopia. Methods Experimental cross-sectional design was applied using pharmacopeia non-pharmacopeia methods. The difference (f1) similarity (f2) factors were calculated assess vitro generic products with comparator. Result results revealed that all investigated contained...

10.3389/frans.2024.1399843 article EN cc-by Frontiers in Analytical Science 2024-07-30

The introduction of generic drug products from multiple sources into the health care system many developing countries may lead to spread substandard medicines. Post marketing surveillance is very crucial ensure product quality and eliminate medicines consequently, better patient clinical outcome. Hence, aim present work was assess six ciprofloxacin hydrochloride 500 mg tablets available in Dessie town, Northeast Ethiopia using vitro control tests. Weight variation test, disintegration...

10.1177/1741134320921929 article EN Journal of Generic Medicines The Business Journal for the Generic Medicines Sector 2020-05-06

A two-channel, self-shielded, cylindrical, transverse gradient coil is numerically designed. The four quadrants of both the inner and outer cylinders were each divided into two sections. All symmetric sections primary corresponding shielding turns are assigned to first channel where enclosing belong second channel. Quasi-elliptic curves used for tracks design. Achieving a comparable target field, DC dissipated power two-channel lower compared conventional designed with similar dimensions...

10.58530/2022/3250 article EN Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition 2023-08-03

Abstract Background This study aimed to evaluate the quality and physicochemical bioequivalence of commercially available brands hydrochlorothiazide 25mg tablets in community pharmacies Dessie town, Northeast Ethiopia. Methods Experimental-based cross-sectional design was applied using disintegration, identification, friability, uniformity, hardness, assay test methods as described USP. Difference (f1) similarity (f2) factor values were calculated assess vitro generic products with...

10.21203/rs.3.rs-2893090/v1 preprint EN cc-by Research Square (Research Square) 2023-05-16

Eddy-currents are generated in MRI scanners’ metallic structures due to the rapid switching of gradient coils. They may result image distortions and induce acoustic-noise particularly for fast/spiral sequences. Transient eddy-currents computations can be used understand extent such effects. In this work, a numerical framework was devised compute transient induced by an amplitude-modulated sinusoidal pulse longitudinal coil configuration. Stream functions representation...

10.58530/2022/3249 article EN Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition 2023-08-03

Eddy-currents induced by MRI gradient coils due to rapid switching result in undesirable thermal effects, field distortions and acoustic-noise. Efficient numerical computations are needed analyze eddy-currents for complex configurations. The skin-depth adds an extra computational burden eddy-current since meshing the direction may be achieve reliable during harmonic analysis. Here, we use a single-layer stream-function method (SSM) applying resistance compensation compare our results...

10.58530/2022/3251 article EN Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition 2023-08-03
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