Outcomes of side-to-end versus end-to-end colorectal anastomosis in nonemergent sigmoid and rectal cancers: a randomized controlled clinical trial

Habeeb Tamer A.A.M.,Mohammad Hatem,Wasefy Tamer,Mansour Mohamed Ibrahim 대한대장항문학회 2023 Annals of Coloproctolgy Vol.39 No.3

Purpose: The outcomes of open colorectal anastomosis of side-to-end versus end-to-end in nonemergent sigmoid and rectal cancer surgery in adults were compared. Methods: A randomized controlled trial on individuals with sigmoid and rectal cancers was conducted between September 2016 and September 2018. Results: The mean age was 62.58±12.3 years in the side-to-end anastomotic (SEA) group and 61.03±13.98 years in the end-to-end anastomotic (EEA) group. Except for the operative time, intraoperative data revealed no significant differences between the studied groups, and the SEA group revealed that the mean anastomotic time was significantly shorter. Perioperative blood loss, length of stay, reoperation, inpatient death, infection, and bleeding were significantly associated with leakage. There is a statistically significant change regarding the range of bowel frequency in the EEA group only (P=0.04). There is a statistically significant difference regarding incontinence for flatus in the SEA group only (P≤0.001). A statistically significant change in both groups regards incontinence for liquid stools (P≤0.001) and clustering of stools (P≤0.001 and P=0.043). The quality of life in the SEA group significantly dropped at 6 months and then returned to baseline as regards to physical well-being (PWB), functional well-being (FWB), and colorectal cancer symptoms (CCS) with no difference as regards SWB and EWB, while in the EEA group, the exact change happened only as regard PWB and FWB, but SWB and CCS percentage did not return to baseline. Conclusion: The SEA group offers a safe alternative approach to the EEA group.

Comparison and selection of patient follow‑up systems for covid‑19 pandemic patients

Tamer Eren,Tuğba Danışan,Ayşegül Deringöz,Güler Aksüt 한국의류학회 2022 Fashion and Textiles Vol.9 No.1

People have struggled with many infectious diseases throughout history. Today, the Covid-19 is being fought. One of the most important things for people who have or are at risk of getting Covid-19 is social isolation. Many countries resort to diferent ways to ensure social isolation. For this, remote patient monitoring systems have been developed. In this study, the problem of the selection of Covid-19 remote patient monitoring systems is discussed. Seven Wearable Health Technology (WHT) products were evaluated with a total of 10 criteria, including the important symptoms used in the patient tracking systems. The weights of 10 criteria determined by the Analytical Hierarchy Process (AHP) method were calculated, and these weights were used in the solution of The Preference Ranking Organization Method for Enrichment Evaluation (PROMETHEE), and Technique for Order Preference by Similarity to Ideal Solutions (TOPSIS) methods. WHT products were compared. As a result, the most appropriate patient follow-up system was determined. This study generates diferences in terms of evaluating seven diferent products and ten criteria in total with MCDM methods. A more comprehensive evaluation has been made in the literature than the studies in this feld.

A new official national regulations for complementary medicine practices in Saudi Arabia

Tamer Aboushanab,Saad Baslom 한국한의학연구원 2021 Integrative Medicine Research Vol.10 No.2

Ramadan fasting following laparoscopic sleeve gastrectomy: a prospective online survey cohort study in Egypt

Tamer N Abdelbaki,Noureldin Ahmed,Mahmoud Ahmed Alhussini,Moustafa Elshafei 대한내시경로봇외과학회 2024 Journal of Minimally Invasive Surgery Vol.27 No.1

Purpose: This study aims to explore the feasibility and implications of Ramadan fasting for patients who have undergone laparoscopic sleeve gastrectomy (LSG), assessing impacts on hydration, nutrient intake, weight management, and gastrointestinal symptoms. Methods: A prospective online survey was conducted among 218 LSG patients and 83 control individuals with obesity who had not undergone surgery. Participants were surveyed before and after Ramadan, providing data on fasting practices, hunger and satiety levels, fluid and nutrient intake, and the occurrence of gastrointestinal symptoms. Statistical analysis was used to compare outcomes between fasting and non-fasting periods and between LSG patients and control participants. Results: A total of 70.2% of LSG patients completed the entire month of Ramadan fasting, with a significant correlation found between the duration post-surgery and the ability to fast. Fasting LSG patients reported decreased hunger, increased satiety, and significant reductions in fluid and nutrient intake during Ramadan. Weight loss was reported in 90.8% of fasting patients, with an average total weight loss of 7.2%. Gastrointestinal symptoms were mild and manageable. Conclusion: The majority of LSG patients can successfully fast during Ramadan with appropriate precautions, including adequate fluid and protein intake. The study highlights the need for patient education and tailored nutritional guidance to ensure safe and effective fasting post-LSG. In order to fast for the entire month, patients may be advised to consider postponing surgery for a few months after Ramadan, avoid overeating during non-fasting hours, and ensure sufficient fluid consumption and protein intake during fasting.

A New Sender-Side Public-Key Deniable Encryption Scheme with Fast Decryption

( Tamer Mohamed Barakat ) 한국인터넷정보학회 2014 KSII Transactions on Internet and Information Syst Vol.8 No.9

Deniable encryption, introduced in 1997 by Canetti, Dwork, Naor, and Ostrovsky, guarantees that the sender or the receiver of a secret message is able to “fake” the message encrypted in a specific ciphertext in the presence of a coercing adversary, without the adversary detecting that he was not given the real message. Sender - side deniable encryption scheme is considered to be one of the classification of deniable encryption technique which defined as resilient against coercing the sender. M. H. Ibrahim presented a sender - side deniable encryption scheme which based on public key and uncertainty of Jacobi Symbol [6]. This scheme has several problems; (1) it can`t be able to derive the fake message M<sub>f</sub> that belongs to a valid message set, (2) it is not secure against Quadratic Residue Problem (QRP), and (3) the decryption process is very slow because it is based dramatically on square root computation until reach the message as a Quadratic Non Residue (QNR). The first problem is solved by J. Howlader and S. Basu`s scheme [7]; they presented a sender side encryption scheme that allows the sender to present a fake message M_f from a valid message set, but it still suffers from the last two mentioned problems. In this paper we present a new sender-side deniable public-key encryption scheme with fast decryption by which the sender is able to lie about the encrypted message to a coercer and hence escape coercion. While the receiver is able to decrypt for the true message, the sender has the ability to open a fake message of his choice to the coercer which, when verified, gives the same ciphertext as the true message. Compared with both Ibrahim`s scheme and J. Howlader and S. Basu`s scheme, our scheme enjoys nice two features which solved the mentioned problems: (1) It is semantically secure against Quadratic Residue Problem; (2) It is as fast, in the decryption process, as other schemes. Finally, applying the proposed deniable encryption, we originally give a coercion resistant internet voting model without physical assumptions.

Oropharyngeal 24-Hour pH Monitoring in Children With Airway-Related Problems

Tamer A. Mesallam 대한이비인후과학회 2016 Clinical and Experimental Otorhinolaryngology Vol.9 No.2

Objectives. Diagnosis and clinical presentation of pediatric laryngopharyngeal reflux (LPR) is still controversial. The aims of this work were to study the possibility of performing 24-hour oropharyngeal pH monitoring for children in the outpatient clinic setup and to explore the results of this test in correlation to airway-related problems. Methods. In this descriptive qualitative study, 26 children suffering from airway-related problems were included. Oropharyngeal 24-hour pH monitoring was performed for all subjects in the outpatient clinic setting. The distribution of airway diagnoses among the study group was studied versus the results of the pH monitoring. Results. There were 16 males and 10 females participated in the study with a mean age of 6.88 (SD, ±5.77) years. Thirty-five percent of the patients were under the age of 3 years (range, 11 months to 3 years). Eight-five percent of the patients tolerated the pH probe insertion and completed 24-hour of pH recording. Laryngomalacia and subglottic stenosis (SGS) were more frequently reported in the positive LPR patients (77%). Conclusion. Oropharyngeal 24-hour pH monitoring can be conducted for children in the outpatient setup even in young age children below 3 years old. Among the positive LPR group, SGS and laryngomalacia were the most commonly reported airway findings.

The Scythians: Nomad Warriors of the Steppe

( Tamer Balcı ) 계명대학교 실크로드중앙아시아연구원 2020 Acta Via Serica Vol.5 No.1

A Predictive Model on Air Entrainment by Plunging Water Jets using GEP and ANN

Tamer Bagatur,Fevzi Onen 대한토목학회 2014 KSCE JOURNAL OF CIVIL ENGINEERING Vol.18 No.1

Plunging water jet flow situations are frequently encountered in nature and environmental engineering. A plunging liquid jet has the ability to provide vigorous gas-liquid mixing and dispersion of small bubbles in the liquid, and enhances mass transfer rate by producing larger gas-liquid interfacial area. This process is called air-entrainment or aeration by a plunging water jet. Advances in field of Artificial Intelligence (AI) offer opportunities of utilizing new algorithms and models. This study presents Artificial Neural Network (ANN) and Gene-Expression Programming (GEP) model, which is an extension to genetic programming, as an alternative approach to modeling of volumetric air entrainment rate by plunging water jets. A new formulation for prediction of volumetric air entrainment rate by plunging water jets using GEP is developed. The GEP-based formulation and ANN approach are compared with experimental results, Multiple Linear/Nonlinear Regressions (MLR/NMLR) and other equations. The results have shown that the both ANN and GEP are found to be able to learn the relation between volumetric air entrainment rate and basic water jet properties. Additionally, sensitivity analysis is performed and it is found that nozzle diameter is the most effective parameter on the volumetric air entrainment rate among water jet velocity, jet length and jet impact angle.

Nostalgia for the Empire: The Politics of Neo-Ottomanism

( Tamer Balcı ) 계명대학교 실크로드중앙아시아연구원 2020 Acta Via Serica Vol.5 No.2

Exact vibration of Timoshenko beam combined with multiple mass spring sub-systems

Tamer A. El-Sayed,Said H. Farghaly 국제구조공학회 2016 Structural Engineering and Mechanics, An Int'l Jou Vol.57 No.6

This paper deals with the analysis of the natural frequencies, mode shapes of an axially loaded beam system carrying ends consisting of non-concentrated tip masses and three spring-two mass subsystems. The influence of system design and sub-system parameters on the combined system characteristics is the major part of this investigation. The effect of material properties, rotary inertia and shear deformation of the beam system is included. The end masses are elastically supported against rotation and translation at an offset point from the point of attachment. Sub-systems are attached to center of gravity eccentric points out of the beam span. The boundary conditions of the ordinary differential equation governing the lateral deflections and slope due to bending of the beam system including developed shear force frequency dependent terms, due to the sub–system suspension, have been formulated. Exact formulae for the modal frequencies and the modal shapes have been derived. Based on these formulae, detailed parametric studies are carried out. The geometrical and mechanical parameters of the system under study have been presented in non-dimensional analysis. The applied mathematical model is presented to cover wide range of mechanical, naval and structural engineering applications.