Unexplained Female Infertility Alert Over Overt and Hidden Genital Infections

Female genital tract infections represents a real challenge for the gynecologists. The exact role of these infections in infertility induction is not clear. The impact of uterine infections on implantation is not clearly defined. This chapter will discuss the implication of overt as well as hidden genital tract infection among women with unexplained infertility. Whether these infections cause infertility or induced by infertility diagnostic as well as therapeutic procedures will be addressed. In short, this chapter will attract attention of gynecologists to put the possibility of genital tract infections in every case of infertility particularly cases with unexplained infertility

Rethinking Lavoix's Attribution of the Dinar dated 210 AH/AD 825-826

The paper aims at reconsidering a dinar attributed to the 'Abbasid caliph al- Ma’rnun (198-218 AH/AD 813-833), first published in 1887 by the French scholar H. Lavoix. Later on, this attribution was repeated, without questioning, by a number of scholars despite the fact that - at the beginning of the 20th century - the Sicilian numismatist B. Lagumina had noticed that the legends on the gold specimen in the BnF's coin cabinet were comparable to the silver issues of the revolt leader Mansur b. Nasr al-Tunbudr. The author of this contribution proves, using historical sources and through a close scrutiny of the known specimens, both in gold and silver, that the dinar catalogued by Lavoix is a gold issue minted in al-Qayrawan by Mansar b. Nasr al-Tunbudr and that it cannot be considered, as previously believed, as an Abbasid dinar

Physiological and Histopathological Investigations on the Effects of α-Lipoic Acid in Rats Exposed to Malathion

The present study was designed to evaluate the influence of α-lipoic acid treatment in rats exposed to malathion. Forty adult male rats were used in this study and distributed into four groups. Animals of group 1 were untreated and served as control. Rats of group 2 were orally given malathion at a dose level of 100 mg/kg body weight (BW) for a period of one month. Experimental animals of group 3 were orally given α-lipoic acid at a dose level of 20 mg/kg BW and after 3 hours exposed to malathion at the same dose given to group 2. Rats of group 4 were supplemented with α-lipoic acid at the same dose given to group 3. The activities of serum glutamic oxaloacetic acid transaminase (GOT), glutamic pyruvic acid transaminase (GPT), alkaline phosphatase (ALP), and acid phosphatase (ACP), and the values of creatinine, urea, and uric acid were statistically increased, while the values of total protein and total albumin were significantly decreased in rats exposed to malathion. Moreover, administration of malathion for one month resulted in damage of liver and kidney structures. Administration of α-lipoic acid before malathion exposure to rat can prevent severe alterations of hematobiochemical parameters and disruptions of liver and kidney structures. In conclusion, this study obviously demonstrated that pretreatment with α-lipoic acid significantly attenuated the physiological and histopathological alterations induced by malathion. Also, the present study identifies new areas of research for development of better therapeutic agents for liver, kidney, and other organs' dysfunctions and diseases

Pearl millet forage productivity under sprinkler irrigation system in sandy soil

A field experiment was conducted in a private farm (30o40' N latitude, 32o15' E longitude, and 10.0 m above mean sea level), Ismailia Governorate, Egypt, during the 2020 and 2021 summer growing seasons. The aim was to study the effect of four irrigation treatments (125, 100, 75% ETo, and farmer practice) on pearl millet forage yield. Average amounts of applied irrigation water under 125, 100, 75% ETo and farmer practice were 4637, 3710, 2782, and 5950 m3/ha, respectively with respective average water consumption values of 4130, 3308, 2482, and 5302 m3/ha. Compared to the farmer practice, the saved water was 22, 38, and 53 % for the 125, 100, and 75% ETo treatments. Average water use efficiency values were 7.91, 7.55, 6.96 and 4.59 kg/m3, and average water productivity values were 7.04, 6.73, 6.21, and 4.08 kg/m3 for 125, 100, 75% ETo and farmer treatments, respectively. The Ky factor was 1.17 indicating that the pearl millet crop is moderately sensitive to water stress. Irrigating pearl millet in sandy soils with 100% ETo will save 38% of applied irrigation water, achieve water use efficiency of 7.55 green yield/m3 of water consumed, and water productivity of 6.73 kg green yield/m3 of water applied. Keywords: Pearl millet, BIS model, sprinkler system, sandy soil, water use efficiency and water productivit

GVIPS Models and Software

Two reports discuss, respectively, (1) the generalized viscoplasticity with potential structure (GVIPS) class of mathematical models and (2) the Constitutive Material Parameter Estimator (COMPARE) computer program. GVIPS models are constructed within a thermodynamics- and potential-based theoretical framework, wherein one uses internal state variables and derives constitutive equations for both the reversible (elastic) and the irreversible (viscoplastic) behaviors of materials. Because of the underlying potential structure, GVIPS models not only capture a variety of material behaviors but also are very computationally efficient. COMPARE comprises (1) an analysis core and (2) a C++-language subprogram that implements a Windows-based graphical user interface (GUI) for controlling the core. The GUI relieves the user of the sometimes tedious task of preparing data for the analysis core, freeing the user to concentrate on the task of fitting experimental data and ultimately obtaining a set of material parameters. The analysis core consists of three modules: one for GVIPS material models, an analysis module containing a specialized finite-element solution algorithm, and an optimization module. COMPARE solves the problem of finding GVIPS material parameters in the manner of a design-optimization problem in which the parameters are the design variables

Optimization of Dielectric Rod Antenna Design in Millimeter Wave Band for Wireless Communications

Dielectric rod antennas are promising candidates to be used in millimeter wave band wireless communications. The optimization of a patch-fed dielectric rod antenna design at millimeter wave band is presented in this work. This design is composed of simple dielectric rod antenna made of low cost Teflon with relative permittivity of 2.1 that is fed by a rectangular patch antenna. Compared to the conventionally used tapered dielectric rod antennas, this configuration is capable of producing higher gain for a given antenna length. The design is optimized to achieve gain up to 17.5 dBi and impedance bandwidth up to 4.4 GHz at 60 GHz. A 4-element array is proposed to increase the gain up to 21 dBi. Simulations are performed using CST microwave studio, and their results are presented.Comment: 6 pages, 7 figures, 2 table

The Antibacterial Effect of Some Medicinal Plant Extracts and their Synergistic Effect with Antibiotics

The aim of the study was to assess the antibacterial effect of some medicinal plant extracts and their synergistic antibiotics against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa. The extract of medicinal plants were prepared using Soxhlet apparatus for alcoholic extract, and water reflux for aqueous extracts. The antibacterial activities of extracts were evaluated using the disk diffusion method as well as well diffusion method; the inhibitory zones were recorded in millimeters. The minimal inhibitory concentration (MIC) of the plant extracts against E. coli, S. aureus and P. aeruginosa were assessed using microdilution method. The synergistic effect between plants and extraction of antibiotics was assessed using disk diffusion method. The results of this study showed that ethanolic extracts used against E. coli, S. aureus and P. aeruginosa were showed antimicrobial and synergistic effect with most antibiotics better than methanolic and aquatic extracts. The results of this study showed that there is a decrease in MIC in case of methanolic extract of E. camaldulensis against E. coli (3.125 mg/ml), and the methanol and aquatic extract of F. sycomorus (leaves) against S. aureus varying from 6.25 to 3.125 mg/ml, and the ethanol extract of E. camaldulensis against P. areuginosa (6.25 mg/ml). Thereby, our results indicate the possibility of using these extracts in the treatment of bacterial infections, and the results of this study was encouraging, despite the need for clinical studies to determine of the real effectiveness and potential toxic effects in vivo. These results was revealed the importance of plant extracts when associated with antibiotic and Non-antibiotic drugs in control of bacteria. Keywords: Plant extracts, Synergistic effects, Antimicrobial, Microdilution metho

New spectrophotometric microdetermination of carbapenem antibiotics derivatives in pharmaceutical formulations

AbstractA new sensitive spectrophotometric method was developed to determine three carbapenem antibiotics: imipenem, meropenem and ertapenem. The proposed method was based on the formation of the coloured tris(o-phenanthroline)-iron(II) complex (ferroin) [Phen] or Fe (II)-2,2″-bipyridyl complex [Bip] in the reaction of the tested drugs with the corresponding iron (III)-complexes in an acetate pH 4 buffer. The formed coloured complexes showed maximum absorbance at 510 and 520nm for [Phen] and [Bip], respectively. The reaction conditions, including the pH, reagent concentration, reaction time, temperature and stability of the formed coloured species, were optimized to achieve the highest sensitivity. Linear calibration curves were obtained in the concentration ranges from 0.2 to 10, 0.5 to 10 and 0.5 to 10μgmL−1 for the aforementioned drugs in the same order. The developed method was successfully applied to determine the investigated carbapenems in their pharmaceutical formulations with average recoveries of 100.8, 99.8 and 99.4% for the Phen method and 98.9, 101.7 and 100.6% for the Bip method for imipenem, meropenem and ertapenem, respectively. A statistical comparison of the results with the reference method showed good concurrence and indicated no significant difference in accuracy or precision

Psychological flourishing and Self-esteem as predictors of adjustment to university life among a sample of Qatar university students

يهدف البحث إلى الكشف عن العلاقة بين الازدهار النفسي وتقدير الذات والتوافق مع الحياة الجامعية لدى عينة من الطلاب في جامعة قطر، كما يهدف إلى تعرف الفروق بين عينة الدراسة في ضوء النوع والفرقة الدراسية والحالة الاجتماعية والتفاعل بينهم في تلك المتغيرات، وإمكانية التنبؤ بالتوافق مع الحياة الجامعية من خلال الازدهار النفسي وتقدير الذات. تكونت عينة الدراسة من 329 طالبًا وطالبة من طلاب جامعة قطر، طبق عليهم الباحثان مقياس الازدهار النفسي (Diener et al., 2009) ومقياس تقدير الذات (Rosenberg, 1965) ومقياس التوافق مع الحياة الجامعية (Baker & Siryk, 1989). وتشير نتائج الدراسة إلى وجود علاقة ارتباطية دالة إحصائيا بين الازدهار النفسي وتقدير الذات والتوافق مع الحياة الجامعية لدى عينة الدراسة. كما أشارت النتائج إلى وجود فروق ذات دلالة إحصائية تعزى للنوع على بعد التوافق الشخصي الانفعالي والازدهار لصالح الذكور، كما ظهرت فروق تعزى للحالة الاجتماعية على التوافق الأكاديمي، والتعلق، والدرجة الكلية، وتقدير الذات والازدهار النفسي لصالح المتزوجين. وأخيرا، أظهرت النتائج أنه يمكن التنبؤ بالتوافق مع الحياة الجامعية وأبعاده الفرعية من خلال الازدهار النفسي وتقدير الذات