CRIOSPHINX STELA FROM TELL HEBOUA - NORTH SINAI

[En] A rectangular stela was found in the vicinity of Tell Heboua I by accident early 2020. The stela was uncovered 500 m to the west of the fortification walls of Heboua I, during a land reclamation project which is going on at the western vicinity of Tell Heboua I. Our well-trained guard Hassan al-Masody, recognized the limestone slab on top of the embankment of a small drainage canal. When turning this recognizable piece of stone, he found it to be decorated of a limestone stela. Inscribed materials that were discovered at Heboua area are still limited compared to the long history of the site and the extensive and continuous archaeological work done. This obviously due to the scarcity of the stone at this sandy remote area. In addition, every piece of stone in the North Sinai archeological sites was taken from its original place and reused along the history till now. [Ar] لوحه من تل حبوة-شمال سيناء لوحة مستطيلة الشكل عثر عليها مصادفة فى أوائل عام 2020. وذلك على بعد 500 متر إلى الغرب من الجدران المحصنة لمدينة ثارو - حبوة 1 ، واللوحة من الحجر الجيري الابيض تم العثور عليها مكسورة الى قطعتين من المنتصف ، وكانت فى حالة سيئة وتم ترميمها مبدئيا فى الموقع. ظهر اللوحة خشن به العديد من علامات الأزميل المحفورة. تم تزيين اللوحة بنقوش غائرة. تمثل زخرفة اللوحة أحد العناصر الرئيسية التى تشير إلى صورة أسد راقد برأس كبش criosphinx مع حامل قرابين فى المقدمة. يمكن التعرف على الكبش على أنهOvis platyura aegyptiaca بناءً على القرون المنحنية للأمام. كبش بلاتيورا ، المخلوق المقدس البارز لآمون ، أصبح أحد أكثر الحيوانات قداسة فى مصر القديمة من خلال ارتباطه بالإله آمون ، الذي كان ، مثل آمون رع ، الإله البدائى والإله الأعلى للآلهة المصرية ، تاجه يرمز إلى السماء ، ويتكون من تاج يعلوه ريشتان مرتفعتان. لا يوجد نص على اللوحة ؛ يمكن تصنيفها على أنها لوحة نذرية ، وهى لا تحتوى على صورة الشخص الذى وهبها ولكن مثل عليها الاله فقط. ومن المرجح طبقا لما عثر عليه فى منطقة تل حبوة 1 انها تؤرخ بعصر الدولة الحديثة

Microencapsulation And Application Of Catha Edulis Extract On Sexual Behaviour, Body Weight And Blood Lipid Profiles In Rats

Catha edulis (CE) which is commonly known as khat has been reported to improve sexual motivation and has anti-obesity property. Khat is traditionally consumed via chewing of the leaf followed by slowly swallowing the juices for the desired effect. This study aimed to simulate the sustained release of khat content through the preparation of sustained release microcapsules of khat extract. The effect of khat extract and the sustained release microcapsules on the sexual motivation, vaginal secretions, estradiol levels, food intake, body weight, blood cholesterol and triglycerides levels was examined in rats

Early outcomes of transection of secondary chordae with downsized ring annuloplasty in low recurrence risk severe ischemic mitral regurgitation

Background: Relying solely on restrictive annuloplasty for the repair of ischemic mitral regurgitation is associated with an unacceptable rate of recurrence. Transection of secondary chordae as an adjunctive procedure has been proposed to improve results.Patient and methods: This is a prospective observational study including 20 patients who underwent mitral repair using downsized annuloplasty ring and transection of the secondary chordae, at the time of CABG at the Cardiothoracic Surgery Department of Cairo University Hospitals through the period between March 2016 and October 2018. The primary outcome being examined was the recurrence of significant mitral regurgitation at 6 months postoperatively. Secondary outcomes included coaptation length and ejection fraction.Results: The mean age was 57.5 ± 6.9 years. The mean ejection fraction was 45.1 ± 11%. There was one early mortality (5%). At 6 months postoperatively, there was no incidence of recurrence of significant mitral regurgitation. Coaptation length was quite satisfactory (7.2 ± 0.67 mm).Conclusion: Transection of secondary chordae is a safe and simple option. It may be beneficial when performed in combination with downsized ring annuloplasty in patients with low-risk ischemic mitral regurgitation

Intraturbinal versus extraturbinal microdebrider-assisted inferior turbinoplasty: Preliminary results

AbstractObjectiveTo compare the intraturbinal use of the microdebrider with the extraturbinal one for inferior turbinate reduction based on subjective and objective parameters.DesignProspective single blinded randomized trial.SettingPrivate Hospital (Magrabi Eye and Ear Centre).MethodsForty patients with nasal obstruction due to bilateral hypertrophied inferior turbinates were included in this study. History taking, clinical assessment and CT scan of the paranasal sinuses were done for all patients. All patients underwent microdebrider-assisted inferior turbinoplasty, the microdebrider was used intraturbinally on one side of the nose and extraturbinally on the other side in alternate manner. The patients were blinded to the technique used.Main outcome measuresOperative time, blood loss, subjective improvement of the nasal obstruction, endoscopic grading of the inferior turbinate, nasal mucociliary clearance (NMCC) and post operative complications.ResultsTen patients were lost to follow up. The operative time and operative blood loss were less in the extraturbinal group (p<0.05). At 1month post operatively, the nasal obstruction VAS score showed significant improvement on the intraturbinal sides only (p<0.05), at 3 and 6months post operatively, the VAS score showed significant improvement on both sides with no difference between the 2 groups (p value=0.064 and 0.728 respectively). Nasal endoscopy revealed grade 2 turbinates in 30% and grade 3 in the remaining 70% of the intraturbinal group with almost similar findings in the extraturbinal group. At 6months post operatively, significant improvement of the turbinate size was detected on both sides. The NMCC showed significant improvement on the intraturbinal sides at 1month with significant worsening on the extraturbinal sides. At 3months, both sides showed significant improvement of the NMCC. No complications were reported in either group.ConclusionsExtraturbinal microdebrider-assisted inferior turbinoplasty is as effective and safe as the intraturbinal one with shorter operative time and less blood loss with similar morbidity, so the extraturbinal microdebrider-assisted inferior turbinoplasty could be a good option for all cases of inferior turbinate hypertrophy reserving the intraturbinal technique for patients with possible delay of mucosal regeneration e.g. diabetics and old age and patients not accepting the relative delay of improvement of their symptoms

Artificial intelligence tool for the study of COVID-19 microdroplet spread across the human diameter and airborne space

The 2019 novel coronavirus (SARS-CoV-2 / COVID-19), with a point of origin in Wuhan, China, has spread rapidly all over the world. It turned into a raging pandemic wrecking havoc on health care facilities, world economy and affecting everyone’s life to date. With every new variant, rate of transmission, spread of infections and the number of cases continues to rise at an international level and scale. There are limited reliable researches that study microdroplets spread and transmissions from human sneeze or cough in the airborne space. In this paper, we propose an intelligent technique to visualize, detect, measure the distance of spread in a real-world settings of microdroplet transmissions in airborne space, called “COVNET45”. In this paper, we investigate the microdroplet transmission and validate the measurements accuracy compared to published researches, by examining several microscopic and visual images taken to investigate the novel coronavirus (SARS-CoV-2 / COVID-19). The ultimate contribution is to calculate the spread of the microdroplets, measure it precisely and provide a graphical presentation. Additionally, the work employs machine learning and five algorithms for image optimization, detection and measurement

Comparison Mechanical Properties of Two Types of Light Weight Aggregate Concrete

This paper presents the behavior of concrete properties by replacing the conventional coarse aggregate used in the concrete mixture by two types of lightweight aggregate; Expanded Perlite Aggregate (EPA) and Volcanic Pumice (VP). To fulfill this aim; three laboratory tests were applied; density, compressive strength, and abrasion resistance, that conducted to extrapolate the range of the changes in the properties of concrete with existence those types of aggregate in the mixture. Also, the volumetric proportion adopted as a strategy for replacing the coarse aggregate by EPA or VP in the concrete mixture. Then, the volumetric proportion ranged from 10% to 50% with the variation step was 10%. Therefore, ten concrete mixtures are prepared and divided into two groups; each group contains five concrete mixes to represent the volumetric replacement (10-50)% of conventional coarse aggregate by EPA or VP. On the other hand, one extra mixture designed by using conventional aggregate (coarse and fine aggregate) without any inclusion of EPA or VP to be considered as a reference mixture. The obtained laboratory results of this study proved that the density, compressive strength, and abrasion resistance readings of concrete decreased at any volumetric proportion replacement of coarse aggregate by EPA or VP. The decrease in density and compressive strength of concrete readings amounted the peak level at 50% replacing of coarse aggregate by EPA, which were 38.19% and 77.37%, respectively than the reference mixture. Additionally, the compressive strength is an important factor affecting the abrasion resistance of concrete mixture, and loss of abrasion decreased as compressive strength increased

(E)-4-Hy­droxy-N′-(2-meth­oxy­benzyl­idene)benzohydrazide

In the title compound, C15H14N2O3, the dihedral angle between the benzene rings is 66.56 (5)°. In the crystal, N—H⋯O, O—H⋯O and C—H⋯O inter­actions link the mol­ecules into a three-dimensional network. A π–π inter­action, with a centroid–centroid distance of 3.628 (6) Å, helps to establish the packing

Noise Effects on a Proposed Algorithm for Signal Reconstruction and Bandwidth Optimization

The development of wireless technology in recent years has increased the demand for channel resources within a limited spectrum. The system\u27s performance can be improved through bandwidth optimization, as the spectrum is a scarce resource. To reconstruct the signal, given incomplete knowledge about the original signal, signal reconstruction algorithms are needed. In this paper, we propose a new scheme for reducing the effect of adding additive white Gaussian noise (AWGN) using a noise reject filter (NRF) on a previously discussed algorithm for baseband signal transmission and reconstruction that can reconstruct most of the signal’s energy without any need to send most of the signal’s concentrated power like the conventional methods, thus achieving bandwidth optimization. The proposed scheme for noise reduction was tested for a pulse signal and stream of pulses with different rates (2, 4, 6, and 8 Mbps) and showed good reconstruction performance in terms of the normalized mean squared error (NMSE) and achieved an average enhancement of around 48%. The proposed schemes for signal reconstruction and noise reduction can be applied to different applications, such as ultra-wideband (UWB) communications, radio frequency identification (RFID) systems, mobile communication networks, and radar systems