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MEDICAL SCIENCES (2241 journals)                  1 2 3 4 5 6 7 8 | Last

Showing 1 - 200 of 3562 Journals sorted alphabetically
16 de Abril     Open Access   (Followers: 1)
3D Printing in Medicine     Open Access   (Followers: 5)
4 open     Open Access  
AADE in Practice     Hybrid Journal   (Followers: 2)
AAS Open Research     Open Access  
ABCS Health Sciences     Open Access   (Followers: 3)
Abia State University Medical Students' Association Journal     Full-text available via subscription   (Followers: 1)
AboutOpen     Open Access  
ACIMED     Open Access  
ACM Transactions on Computing for Healthcare     Hybrid Journal  
ACS Medicinal Chemistry Letters     Hybrid Journal   (Followers: 42)
Acta Bio Medica     Open Access   (Followers: 1)
Acta Bioethica     Open Access  
Acta Bioquimica Clinica Latinoamericana     Open Access   (Followers: 1)
Acta Herediana     Open Access  
Acta Marisiensis - Seria Medica     Open Access  
Acta Medica (Hradec Králové)     Open Access  
Acta Medica Bulgarica     Open Access  
Acta Medica Colombiana     Open Access   (Followers: 1)
Acta Médica Costarricense     Open Access   (Followers: 2)
Acta Medica Indonesiana     Open Access  
Acta Medica International     Open Access  
Acta Medica Iranica     Open Access  
Acta medica Lituanica     Open Access  
Acta Medica Martiniana     Open Access  
Acta Medica Peruana     Open Access   (Followers: 1)
Acta Scientiarum. Health Sciences     Open Access   (Followers: 2)
Acupuncture & Electro-Therapeutics Research     Full-text available via subscription   (Followers: 3)
Acupuncture and Herbal Medicine     Open Access  
Addiction Science & Clinical Practice     Open Access   (Followers: 9)
Addictive Behaviors Reports     Open Access   (Followers: 8)
Adıyaman Üniversitesi Sağlık Bilimleri Dergisi / Health Sciences Journal of Adıyaman University     Open Access  
Adnan Menderes Üniversitesi Sağlık Bilimleri Fakültesi Dergisi     Open Access  
Advanced Health Care Technologies     Open Access   (Followers: 12)
Advanced NanoBiomed Research     Open Access   (Followers: 1)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 4)
Advanced Therapeutics     Hybrid Journal   (Followers: 1)
Advances in Bioscience and Clinical Medicine     Open Access   (Followers: 6)
Advances in Cell and Gene Therapy     Hybrid Journal   (Followers: 1)
Advances in Clinical Chemistry     Full-text available via subscription   (Followers: 24)
Advances in Clinical Radiology     Full-text available via subscription   (Followers: 4)
Advances in Life Course Research     Hybrid Journal   (Followers: 7)
Advances in Medical Education and Practice     Open Access   (Followers: 29)
Advances in Medical Sciences     Hybrid Journal   (Followers: 7)
Advances in Medicine     Open Access   (Followers: 3)
Advances in Microbial Physiology     Full-text available via subscription   (Followers: 3)
Advances in Parkinson's Disease     Open Access   (Followers: 2)
Advances in Preventive Medicine     Open Access   (Followers: 6)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (Followers: 18)
Advances in Regenerative Medicine     Open Access   (Followers: 3)
Advances in Therapy     Hybrid Journal   (Followers: 5)
Advances in Traditional Medicine     Hybrid Journal   (Followers: 3)
Advances in Virus Research     Full-text available via subscription   (Followers: 7)
Advances in Wound Care     Hybrid Journal   (Followers: 14)
Aerospace Medicine and Human Performance     Full-text available via subscription   (Followers: 22)
African Health Sciences     Open Access   (Followers: 6)
African Journal of Biomedical Research     Open Access  
African Journal of Clinical and Experimental Microbiology     Open Access  
African Journal of Laboratory Medicine     Open Access   (Followers: 2)
African Journal of Medical and Health Sciences     Open Access  
Afrimedic Journal     Open Access   (Followers: 3)
AIDS Research and Human Retroviruses     Hybrid Journal   (Followers: 9)
Airway     Open Access   (Followers: 3)
AJOB Empirical Bioethics     Hybrid Journal   (Followers: 3)
AJSP: Reviews & Reports     Hybrid Journal  
Aktuelle Ernährungsmedizin     Hybrid Journal   (Followers: 4)
AkupunkturPraxis     Full-text available via subscription   (Followers: 3)
Al-Azhar Assiut Medical Journal     Open Access   (Followers: 1)
Al-Qadisiah Medical Journal     Open Access  
Alerta : Revista Científica del Instituto Nacional de Salud     Open Access  
Alexandria Journal of Medicine     Open Access  
Allgemeine Homöopathische Zeitung     Hybrid Journal   (Followers: 1)
ALTEX : Alternatives to Animal Experimentation     Open Access   (Followers: 1)
American Journal of Biomedical Engineering     Open Access   (Followers: 10)
American Journal of Biomedical Research     Open Access   (Followers: 2)
American Journal of Biomedicine     Full-text available via subscription  
American Journal of Chinese Medicine, The     Hybrid Journal   (Followers: 2)
American Journal of Clinical Medicine Research     Open Access   (Followers: 5)
American Journal of Family Therapy     Hybrid Journal   (Followers: 6)
American Journal of Law & Medicine     Full-text available via subscription   (Followers: 10)
American Journal of Lifestyle Medicine     Hybrid Journal   (Followers: 5)
American Journal of Managed Care     Full-text available via subscription   (Followers: 13)
American Journal of Medical Case Reports     Open Access  
American Journal of Medical Sciences and Medicine     Open Access   (Followers: 2)
American Journal of Medicine     Hybrid Journal   (Followers: 47)
American Journal of Medicine and Medical Sciences     Open Access   (Followers: 1)
American Journal of Medicine Open     Open Access   (Followers: 3)
American Journal of Medicine Studies     Open Access   (Followers: 3)
American Journal of Medicine Supplements     Full-text available via subscription   (Followers: 3)
American Journal of the Medical Sciences     Hybrid Journal   (Followers: 11)
American Journal on Addictions     Hybrid Journal   (Followers: 11)
American medical news     Free   (Followers: 3)
Amrita Journal of Medicine     Open Access   (Followers: 3)
Amyloid: The Journal of Protein Folding Disorders     Hybrid Journal   (Followers: 6)
Anales de la Facultad de Medicina     Open Access  
Anales de la Facultad de Medicina, Universidad de la República, Uruguay     Open Access  
Anales del Sistema Sanitario de Navarra     Open Access   (Followers: 1)
Analgesia & Resuscitation : Current Research     Hybrid Journal   (Followers: 5)
Anatolian Clinic the Journal of Medical Sciences     Open Access  
Anatomica Medical Journal     Open Access  
Anatomical Science International     Hybrid Journal   (Followers: 3)
Anatomical Sciences Education     Hybrid Journal   (Followers: 1)
Anatomy     Open Access   (Followers: 3)
Anatomy Research International     Open Access   (Followers: 4)
Androgens : Clinical Research and Therapeutics     Open Access  
Angewandte Nuklearmedizin     Full-text available via subscription   (Followers: 3)
Angewandte Schmerztherapie und Palliativmedizin     Hybrid Journal  
Angiogenesis     Hybrid Journal   (Followers: 2)
Animal Diseases     Open Access  
Annales de Pathologie     Full-text available via subscription  
Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale     Full-text available via subscription   (Followers: 2)
Annals of 3D Printed Medicine     Open Access  
Annals of African Medicine     Open Access   (Followers: 2)
Annals of Anatomy - Anatomischer Anzeiger     Hybrid Journal   (Followers: 2)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18)
Annals of Biomedical Sciences     Full-text available via subscription   (Followers: 3)
Annals of Clinical and Medical Case Reports     Open Access  
Annals of Clinical Hypertension     Open Access  
Annals of Clinical Microbiology and Antimicrobials     Open Access   (Followers: 9)
Annals of Family Medicine     Open Access   (Followers: 14)
Annals of Health Research     Open Access   (Followers: 2)
Annals of Ibadan Postgraduate Medicine     Open Access  
Annals of Medical and Health Sciences Research     Open Access   (Followers: 5)
Annals of Medicine     Hybrid Journal   (Followers: 11)
Annals of Medicine and Surgery     Open Access   (Followers: 7)
Annals of Medicine and Surgery Case Reports     Open Access   (Followers: 1)
Annals of Medicine and Surgery Protocols     Open Access  
Annals of Microbiology     Open Access   (Followers: 9)
Annals of Musculoskeletal Medicine     Open Access  
Annals of Rehabilitation Medicine     Open Access   (Followers: 1)
Annals of Saudi Medicine     Open Access  
Annals of the College of Medicine, Mosul     Open Access  
Annals of the National Academy of Medical Sciences (India)     Open Access  
Annals of the New York Academy of Sciences     Hybrid Journal   (Followers: 5)
Annals of The Royal College of Surgeons of England     Full-text available via subscription   (Followers: 3)
Annals of the RussianAacademy of Medical Sciences     Open Access  
Annals of Vascular Surgery - Brief Reports and Innovations     Full-text available via subscription  
Annual Reports in Medicinal Chemistry     Full-text available via subscription   (Followers: 6)
Annual Reports on NMR Spectroscopy     Full-text available via subscription   (Followers: 4)
Annual Review of Medicine     Full-text available via subscription   (Followers: 18)
Anthropological Review     Open Access   (Followers: 27)
Anthropologie et santé     Open Access   (Followers: 4)
Antibiotics     Open Access   (Followers: 10)
Antibodies     Open Access   (Followers: 2)
Antibody Reports     Open Access  
Antibody Therapeutics     Open Access  
Anuradhapura Medical Journal     Open Access  
Anwer Khan Modern Medical College Journal     Open Access  
Apmis     Hybrid Journal   (Followers: 1)
Apparence(s)     Open Access   (Followers: 1)
Applied Clinical Informatics     Hybrid Journal   (Followers: 4)
Applied Medical Informatics     Open Access   (Followers: 11)
Arab Journal of Nephrology and Transplantation     Open Access   (Followers: 2)
Arabian Journal of Scientific Research / المجلة العربية للبحث العلمي     Open Access  
Archive of Biomedical Science and Engineering     Open Access  
Archive of Clinical Medicine     Open Access   (Followers: 1)
Archives Medical Review Journal / Arşiv Kaynak Tarama Dergisi     Open Access  
Archives of Asthma, Allergy and Immunology     Open Access   (Followers: 1)
Archives of Clinical Hypertension     Open Access  
Archives of Medical and Biomedical Research     Open Access   (Followers: 2)
Archives of Medical Laboratory Sciences     Open Access  
Archives of Medicine and Health Sciences     Open Access   (Followers: 5)
Archives of Organ Transplantation     Open Access  
Archives of Preventive Medicine     Open Access  
Archives of Pulmonology and Respiratory Care     Open Access  
Archives of Renal Diseases and Management     Open Access  
Archives of Trauma Research     Open Access   (Followers: 4)
Arquivos de Medicina     Open Access  
Ars Medica : Revista de Ciencias Médicas     Open Access  
ARS Medica Tomitana     Open Access  
Art Therapy: Journal of the American Art Therapy Association     Hybrid Journal   (Followers: 14)
Arterial Hypertension     Open Access  
Artificial Intelligence in Medicine     Hybrid Journal   (Followers: 19)
Artificial Organs     Hybrid Journal   (Followers: 1)
ASA Monitor     Full-text available via subscription  
Asia Pacific Journal of Clinical Nutrition     Full-text available via subscription   (Followers: 10)
Asian Bioethics Review     Full-text available via subscription   (Followers: 2)
Asian Journal of Cell Biology     Open Access   (Followers: 4)
Asian Journal of Health     Open Access   (Followers: 3)
Asian Journal of Medical and Biological Research     Open Access   (Followers: 3)
Asian Journal of Medical and Pharmaceutical Researches     Open Access  
Asian Journal of Medical Sciences     Open Access   (Followers: 2)
Asian Journal of Medicine and Health     Open Access   (Followers: 1)
Asian Journal of Population Sciences     Open Access  
Asian Journal of Research in Medical and Pharmaceutical Sciences     Open Access  
Asian Journal of Scientific Research     Open Access   (Followers: 2)
Asian Journal of Social Health and Behavior     Open Access   (Followers: 3)
Asian Journal of Transfusion Science     Open Access  
Asian Medicine     Hybrid Journal   (Followers: 5)
Asian Pacific Journal of Health Sciences     Open Access   (Followers: 2)
ASPIRATOR : Journal of Vector-borne Disease Studies     Open Access  
Atención Primaria     Open Access   (Followers: 2)
Atención Primaria Práctica     Open Access  
Atti della Accademia Peloritana dei Pericolanti - Classe di Scienze Medico-Biologiche     Open Access  
Auris Nasus Larynx     Full-text available via subscription  
Australasian Journal of Ultrasound in Medicine (AJUM)     Hybrid Journal   (Followers: 1)
Australian Family Physician     Full-text available via subscription   (Followers: 3)
Australian Journal of Medical Science     Full-text available via subscription   (Followers: 4)
Autopsy and Case Reports     Open Access  
Avicenna     Open Access   (Followers: 1)

        1 2 3 4 5 6 7 8 | Last

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Arabian Journal of Scientific Research / المجلة العربية للبحث العلمي
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Online) 2708-0463
Published by QScience Homepage  [13 journals]
  • التحليل الكروماتوغرافي - الكتلي لبعض
           المركبات الفعالة حيويًا في اثنين من
           النباتات الطبية اليمنية

    • Authors: عيشة محمّد علي محسن; عادل أحمد محمّد سعيد طه أبوبكر فضل سالم
      Abstract: Medicinal plants have a broad range of bioactive substances due to the secondary metabolite compositions and used in treatment of several diseases. This study aimed at investigating the methanolic extraction of the bioactive compounds in two Yemeni medicinal plants (Dorstenia foetida and Lavandula pubescens Decne) using high-performance liquid chromatography-mass spectrometry. The proposed method provided a tentative identification of several constituents such as alkaloids, flavonoid, steroids, terpenoids and coumarin in the studied plants.
      PubDate: 2021-12-07T00:00:00Z
       
  • تقييم فاعلية بعض المطهرات والمعقمات على
           البكتيريا الزائفة (Pseudomonas) المعزولة من
           وحدة العناية المركّزة للمواليد في
           مستشفى مصراتة المركزي - ليبيا

    • Authors: أبوبكر الرطب; نورية المحجوب فوزية أبودينة
      Abstract: This study aimed to evaluate the effectiveness and impact of some disinfectants and sterilizers used at health facilities, especially in Misurata Central Hospital, Libya. The study examined the concentrations prepared for usage at these facilities and the time factor of their effectiveness on a group of Pseudomonas bacteria isolated from the Maternity Department and the Neonatal Intensive Care Unit in this Hospital (11 October 2017 to 8 March 2018). The isolated bacteria species were: Pseudomonas spp, Pseudomonas aeruginosa, Pseudomonas pseudomallei, Pseudomonas cepacia, Pseudomonas fluorescens, Pseudomonas luteola. Method: The study used disinfectants impregnated with filter paper discs (disk diffusion). The disinfectants used were: Ethanol, NaClO, Propanol AF, Desreson AF, Cidex, Decosept, Minuson AF and Dettol. Results: The results showed a delay in the effectiveness of these sterilizers. None of them showed any effect during the first 20 minutes of exposure. The most impactful disinfectant at 20 minutes was Cidex against the three types of bacteria: Pseudomonas cepacia, Pseudomonas fluorescens, and Pseudomonas pseudomallei. Twenty four hours later, good efficacy was observed for most of the sterilizers such as Decosept, NaClO, Dettol and Desreson AF, but not on all types of bacteria. Propanol AF sterilizer showed good efficacy on all species, while Ethanol showed slight results starting from minute 20. However, Minuson sterilizer showed no effects on these species. The diameter of the inhibition area on these types of bacteria ranged from 3 mm to 2.5 cm.
      PubDate: 2021-12-07T00:00:00Z
       
  • مراقبة الأدوية العلاجية، الأساسيات
           والتحسين (مراجعة الخبراء)

    • Authors: أحمد شاكر علي; و مهران شاكر عبد الرحمن
      Abstract: Therapeutic drug monitoring (TDM) is a teamwork clinical pharmacokinetic service that aims to optimize the pharmacotherapy of certain drugs such as those with a narrow therapeutic range, complicated pharmacokinetics. It involves the determination of drug levels in blood samples taken at the appropriate time. Interpretation of results requires the integration of pharmacokinetics, the pharmacodynamics of the drug, and the patient’s clinical profile. To be cost-effective, the service should be optimized. This review highlights the fundamentals of TDM service and provides practical suggestions for its optimization especially in developing countries. It covers the rationale of requesting drug level, design of request form, optimal sampling, and analytical tools. It provides guidelines for appropriate interpretation of drug levels, completeness of the roles of the qualified medical team, continuing education and skills development, involving the patients in improving the service, conducting relevant research, and the use of PK software and integration of TDM with pharmacogenomics.
      PubDate: 2021-12-07T00:00:00Z
       
  • معالجة مادة المرجين بواسطة المبخر
           الطبيعي بوصفه نموذجًا إيكولوجيا: مثال من
           تونس

    • Authors: وفاء حسن; لطفي سوسية, أسماء بلطيفة, كريمة بكير, عفيفة بلعيد الهادي بن منصور
      Abstract: Tunisia is considered a major cultivator of olive and exporter of olive oil. The Tunisian olive oil activity is constantly developing, given that the country is making great efforts to produce a competitive product in quantity and quality. However, this development generates a large amount of olive mill wastewater, which is a basic by-product extracted from the olives. This wastewater is considered a toxic substance and constitutes a very strong environmental pollutant when it is discharged into the environment. Treating olive mill wastewater by natural evaporation could be a new alternative. Our goal is to design and prototype a closed system for bio-evaporation that is low cost, easy to operate, and requires less maintenance. The system in question can evaporate 80% of the olive-mill wastewater and produces 20% of the solid substance. The physio-chemical analysis showed that this generated water is less loaded with organic matter in terms of COD (0.125 ± 0.001 g/ L) and BOD (0.0387 ± 0.0006 g/L) than that of standard olive-mill wastewater (14333.33 ± 763.76 g/ L and 4683.33 ± 208.17 g/ L, respectively). It also contains a lower concentration of phenolic compounds than those found in olive-mill wastewater (0.012 ± 0.005 mg/ L). The microbiological study showed the complete absence of pathogenic microorganisms. Also, the pH of collected water is around 3.26 ± 0.092. As a result, the collected water can be reused to clean and disinfect places like factories and farms. To complete this study, the solid substance (paste) obtained after treatment of the olive mill wastewater was assessed by saponification.
      PubDate: 2021-12-07T00:00:00Z
       
  • مقترح لتطبيق مرصد تلوث الانبعاثات
           التروبوسفيرية (TEMPO) التابع لوكالة ناسا:
           حمولة مستضافة لرصد الغلاف الجوي من مدار
           ثابت بالنسبة إلى الأرض (GEO)

    • Authors: رائد محمد سليمان; كلي تشانس شونج شونج
      Abstract: NASA selected TEMPO as the first Earth Venture Instrument in 2012 for launch in October 2022. TEMPO will use UV-Vis spectroscopy to measure atmospheric pollution for greater North America from space. TEMPO’s Field of Regard (FOR) will be from Mexico City and Cuba to the Canadian tar sands and the Atlantic to the Pacific. Measurements will be hourly and at high spatial resolution (2 km N/S × 4.5 km E/W at 36.5°N, 100°W). TEMPO provides tropospheric measurements that include the principal elements of tropospheric air pollution. Low-Earth orbit (LEO) instruments can only measure each point on Earth once per day and lack time resolution. TEMPO will make measurements from a geostationary orbit (GEO), allowing it to measure each point in the field of view for about 16 hours per day. TEMPO provides a tropospheric measurement suite that includes the key elements of tropospheric air pollution and those contributing to the carbon cycle. Measurements are made hourly from GEO to capture the high variability present in the diurnal cycle of unobservable emissions from current LEO satellites that measure once per day. Due to the smaller spatial footprints, GEO measurements will be able to resolve pollution sources. Three geostationary instruments are being developed. NASA’s TEMPO will be measuring North America. Two other instruments, Sentinel-4 (Under construction) and the South Korean GEMS (launched on February 18, 2020). They will measure atmospheric pollution for Europe and Southeast Asia. In this article, we explain NASA’s TEMPO instrument. We suggest a comparable instrument in GEO to provide hourly atmospheric pollution measurements for the Middle East at very high spatial resolution. The proposed Middle-East TEMPO instrument will cover the Arab world and parts of Asia and Europe. The measurement will include the spectra required to retrieve O3, NO2, SO2, H2CO, C2H2O2, H2O, aerosols, cloud parameters, and UVB radiation. This paper differs from our previous work; it has an updated Field of Regard (FOR), new tables, and data from the latest ESA’s instrument, TROPOMI.
      PubDate: 2021-12-07T00:00:00Z
       
  • رسالة في الميزان للأهوازي: تحقيق ودراسة
           لنصّ في علم الأثقال العربيّ من القرن
           الرابع الهجريّ

    • Authors: محمد أبطوي
      Abstract: We devote this article to publish the critical edition of a scientific text belonging to the Arabic tradition of the science of weights, which represents the medieval theoretical mechanics. This text is Risāla fī al-mīzān (Treatise on the balance) by the well-known Arab mathematician Abū al-Ḥasan Muḥammad b. ʿAbdallāh b. Manṣūr al-Ahwāzī, from the first half of the 4th century H/10th century CE. Al-Ahwāzī is the author of a not-yet published commentary on the tenth book of Euclid’s Elements of Geometry, and several astronomical works are attributed to him, which were lost or not found yet. Our publication of his short treatise on the balance is the first edition of one of his scientific works. The article begins by a short general introduction, followed by a section on the genesis of the Arabic science of weights, its theoretical and historical context, and its historical significance. Then we produce the complete bio-bibliography of Al-Ahwāzī. The rest of the article is dedicated to characterize in brief the contents of the treatise on the balance, which is critically edited in full in a final section, according to the usual criteria for editing scientific texts that were transmitted in a unicum copy.
      PubDate: 2021-12-07T00:00:00Z
       
  • دور الاستشعار عن بعد في مراقبة أطوار نمو
           القمح لدعم إدارة العملية الإنتاجية في
           سوريا

    • Authors: ناصر طرّاف إبراهيم
      Abstract: Strategic crops, especially wheat, represent the core of food security. As the agricultural sector, with its direct impact on feeding the world’s population, deals with natural conditions, it should be managed with an integrated vision of the natural and human factors influencing the crops production process from the field level (micro level) up to the country level (macro level). Aim: This study aimed to monitor the relationship of the phenological phases of wheat with the maturity and harvest timing throughout Syria. Method: Remote sensing techniques were used to show the relationship of time-place-spectrum (TIPLAS) in order to obtain accuracy of yield estimation in each zone and to manage the yielding process of wheat (2014 and 2016 seasons) across Syria. Results: The study recorded six different phenological phases occurred simultaneously (at the beginning of April) regardless of the geographic location of the fields across the country. The date of the milky-waxy maturity spectrally for each geographical zone was determined. Early maturity spectrally of wheat was associated with rain-fed areas, especially with the second and third rain stability zones, with dispersed areas and not concentrated in a specific range. Temporal maturity begins as a converging period within the country, starting from the south towards the north and from the center of the country towards the borders, especially the northern and western, and from the plain areas towards the mountains. Maturation paths spectrally were plotted to follow the harvesting process. The estimations of wheat cultivated areas and production were based on satellite-image data according to the maturity paths. Recommendations: Preparing storage places with sufficient capacity for the expected production volume according to the maturation paths; increase the direct silos volume near the production fields to reduce losses and increase speed of storage; increase the strategic sustainable storage capacity; developing the railway logistics between storage facilities and consumption areas; and the periodic application of this technology during the growing seasons to raise the management efficiency of the crop production process.
      PubDate: 2021-12-07T00:00:00Z
       
  • افتتاحية العدد الثالث

    • Authors: د. موزة بنت محمد الربان
      PubDate: 2021-06-10T00:00:00Z
       
  • صبغة الأنثوسيانين الطبيعية تضاهي
           الصبغات الكيميائية

    • Authors: السيد طاهر السيد حسن عقيل; نجوى إبراهيم البرهاوي
      Abstract: In this study we used distilled water to extract pigment anthocyanin from seeds of the pomegranate and violet cabbage leaves because the waterdoes not have any toxic effect, their evaporates happened at low temperatures, and without influence on the chemical composition of the extracteddye. It was found that the red dye extracted from the pomegranate had an acidic medium (pH 3.0), while the violet dye extracted from the cabbageleaves had a light acid medium (pH 6). The amount of dye in the juice of both plants after dropping the absorbance value of each on the curve ofstandard solutions was 310 and 50 0mg/ 100 ml of juice from each plant, respectively. This dye, with its red and violet colors, succeeded in dyeingbacterial smears, animal, and plant tissue sections, with iodine and copper sulfate fixers respectively, and in a way similar compared to conventionalchemical dyes. It was also an effective dye in the dyed cotton and wool fabrics well with lemon juice and baking soda as add fixative.
      PubDate: 2021-06-10T00:00:00Z
       
  • تقدير فعالية إنزيم (nitrate reductase) باستخدام
           دقائق الفضة النانوية المخلقة حيويًا من
           الفطرين (Pleurotus pulmonarius) و(Pleurotus ostreatus var
           ostreatus) وتأثيرها على الفطر (Pythium aphanidermatum)

    • Authors: سيف سعدالله حسن; عبد الله عبد الكريم حسن
      Abstract: This study was conducted in the laboratories of the Plant Protection Department, College of Agriculture at Tikrit University during the season 2018/2019. The study aimed at studying the effectiveness of nitrate reductase using four concentrations (0.5, 1.0, 1.5, and 2.0) mmol of biosynthetic silver nanoparticles created from the fungi Pleurotus pulmonarius and Pleurotus ostreatus var ostreatus. each fungus has four parts, including the filtrate of the fungus, the biomass, the hot and cold aqueous extract of the biomass of the fungus and its effect on Pythium aphanidermatum. All the concentrations and types of the prepared silver nanoparticles showed the highest efficacy of the nitrate reductase enzyme compared to the control. The highest activity was obtained at the concentration of 1.5 mmol in fungi filtrates, it was 0.65 and 0.66 units/ml for fungi p. pulmonarius and p.ostreatus var ostreatus, followed by the treatment consisting of cold aqueous extract of the same concentration which reached 0.55 and 0.56 units/ml, respectively with no significant differences between them. As for the treatment consisting of the fungus filtrate, this showed a significant difference with the rest of the treatments: The highest enzymatic activity of the fungi reached 0.32 and 0.43 units/ml respectively, compared with the treatment of hot water extract, which showed the lowest enzymatic activity, reaching 0.11 and 0.24 units/ml. The laboratory results did not show significant differences of silver nanoparticles in wheat seeds germination (Variety Sham6) for all concentrations and types of nanoparticles prepared. Whereas the highest germination percentage (97.38%) was for Pythium aphanidermatum biomass while P.ostreatus var ostreatus had highest germination percentage for cold aqueous extract which reached 97.20%.
      PubDate: 2021-06-10T00:00:00Z
       
  • فعالية الزيوت الطيارة لقشور نوعين من
           فواكه الحمضيات على حلم العنكبوت (Tetranychus
           urticae Koch) (Acari: Tetraychnidae) والحلم المفترس
           (Phytoseiulus persimilis Athias-Henroit) (Acari: Phytoseiidae)

    • Authors: أسماء البقالي العيساوي; أمال العمراني
      Abstract: Two essential oils were extracted from the peel of sweet orange Citrus sinensis and bitter orange Citrus aurantium. The objective of this study isto assess their toxicity by direct contact under laboratory conditions, on adult individuals of the two-spot spider mite Tetranychus urticae Koch(Acari: Tetraychnidae) and the predatory spider Phytoseiulus persimilis Athias-Henroit (Acari: Phytoseiidae) which is one of the most importantnatural enemies of this pest. The residual activity of these essential oils has also been tested at five increasing concentrations: 0.5%, 1%, 2%, 4%and 8%. The concentration of 8%, toxicity tests showed good efficacy of the tested essential oils, as the mortality rate for T. urticae was estimatedat 63.33% and 68.74% for sweet orange and bitter orange respectively. In contrast, these oils at the same concentration were found less toxic onadults of P. persimilis, with mortality rates of 25% and 13.88% for these oils, respectively. The residual activity of these oils also decays over time.We conclude from this study that the tested essential oils may represent a promising alternative to pesticides manufactured within environmentallyfriendly biological control programs.
      PubDate: 2021-06-10T00:00:00Z
       
  • قياس تجربة المستخدم لمتصفح ويب: مقترح
           قائم على الإدراك السمعي لذوي الإعاقات
           البصرية

    • Authors: محمد بدوي مصطفى الخليفة; عمر حاج علي حاج الحسن
      Abstract: This study aims to present new methods and tools for the inclusion of people with visual impairments through technology. Specifically, we evaluate the ability to interact with Internet applications and web sites efficiently, effectively, and easily. In this work, cognitive computing was used for the interaction of users with visual impairments with the graphic and visual interfaces of online software. We developed an Internet browser to measure the user experience through A/B tests. Using a sample consisting of 26 Internet users with visual impairment, the suggested solutions showed its effectiveness. In particular, by using the web browser we developed the success rate of access increased by at least 88.3% for all categories of disability. These preliminary results suggest that this path should be pursued in further studies.
      PubDate: 2021-06-10T00:00:00Z
       
  • تقييم التلوث الفيزيائي-الكيميائي
           والميكروبي لمياه الصرف الصحي ومياه
           البحر في خمس دول متوسطية

    • Authors: وفاء حسن; سناء عليبي الهادي بن منصور
      Abstract: The availability of water resources worldwide suffers from pollution pressures caused by many assets, such as industrial, domestic, and agricultural activities. Wastewater has a direct impact on the natural environment, as it is drained after some specific treatments, so it contains a large variety of microorganisms, organic, and inorganic compounds that cause many diseases and harms. In this context, the authors collected samples of seawater as well as treated and untreated wastewater from southern Mediterranean countries (Egypt, Morocco, Algeria, and Tunisia), then carried out some physico-chemical and microbiological analysis. After that, the obtained results were compared with some of the results found in the same period in a northern Mediterranean country (Italy). Physico-chemical studies showed significant pollution of wastewater and seawater collected and analyzed from the Arab countries and Italy in terms of the presence of pollutants (COD, BOD, TOC, NO3 ... etc.), and some heavy metals. On the other hand, DGGE technology allowed a direct evaluation of bacterial diversity in this wastewater as well as seawater. These tests have demonstrated the intensity of bacterial diversity in these water types.
      PubDate: 2021-06-10T00:00:00Z
       
 
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