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Trends and outcomes of pancreaticoduodenectomy for periampullary tumors: A 25-year single-center study of 1000 consecutive cases

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World Journal of Gastroenterology 2017年第38期23卷 7025-7036页

作者： ayman el nakeeb waleed askar ehab atef ehab el hanafy ahmad m sultan tarek salah ahmed shehta moha.ed el sorogy emad hamdy moha.ed el hemly ahmed a el-geidi tharwat kandil moha.ed el shobari talaat abd allah amgad fouad mostafa abu zeid ahmed abu el eneen nabil gad el-hak gamal el ebidy omar fathy ahmed sultan moha.ed abdel wahab gastroenterology surgical center mansoura university

AIM To evaluate the evolution, trends in surgical approaches a n d r e c o n s t r u c t i o n t e c h n i q u e s, a n d i m p o r t a n t lessons learned from performing 1000 consecutive pancreaticoduodenectomies(PDs) for periampullary *** This is a retrospective review of the data of all patients who underwent PD for periampullary tumor during the period from January 1993 to April 2017. The data were categorized into three periods, including early period(1993-2002), middle period(2003-2012), and late period(2013-2017).RESULTS The frequency showed PD was increasingly performed after the year 2000. With time, elderly, cirrhotic and obese patients, as well as patients with uncinate process carcinoma and borderline tumor were increasingly selected for PD. The median operative time and postoperative hospital stay decreased significantly over the periods. Hospital mortality declined significantly, from 6.6% to 3.1%. Postoperative complications significantly decreased, from 40% to 27.9%. There was significant decrease in postoperative pancreatic fistula in the second 10 years, from 15% to 12.7%. There was a significant improvement in median survival and overall survival among the *** Surgical results of PD significantly improved, with mortality rate nearly reaching 3%. Pancreatic reconstruction following PD is still debatable. The survival rate was also improved but the rate of recurrence is still high, at 36.9%.

关键词： Pancreaticoduodenectomy Pancreaticogastrostomy Pancreaticojejunostomy Postoperative pancreatic fistula Periampullary tumor

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Geothermobarometry of Askaoun Pluton in Ouzellarh-Sirwa Promontory (Central Anti-Atlas;Morocco)

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Open Journal of Geology 2012年第3期2卷 136-147页

作者： Abdeslam Toummite moha Ikenne el Hassane Beraaouz Applied Geology and Environmental Geology Laboratory Faculty of Sciences Ibn Zohr University Agadir Morocco

Rocks of the late Neoproterozoic Askaoun pluton (558 ± 2 Ma) located in the Ouzellarh-Sirwa promontory (Anti-Atlas) include magmatic microgranular enclaves (MMEs) ranging from rounded to ovoid in shape, dark and fine grained and generally 5 to 10 cm in size, some reaching a size of 50 cm. They are composed of microdiorite, quartz microdiorite and micromonzodiorite, whereas the felsic host rocks comprise mainly quartz-diorite and amphibole-biotite granodiorite based on mineralogical compositions. The mineral assemblage is similar to those described in their hosting granitoids but with different proportions. In this study composition of minerals is used to describe the nature of the magma and estimate the pressure, temperature and oxygen fugacity at which Askaoun pluton is emplaced. Based on chemistry of biotite Askaoun pluton formed from calc-alkaline magma. Compositions of plagioclase (An5 - An29);hornblende (Mg ≠= 0.59 - 0.65) and biotite (Mg ≠= 0.49 - 0.55) of MMEs are slightly distinct or similar to those of host rocks (An7-40;hbl Mg ≠= 0.64 - 0.69;Bi Mg ≠= 0.49 - 0.50) which suggest partial to complete equilibration during mafic-felsic magma interaction. The coexisting hornblende and plagioclase (hornblende-plagioclase thermometry), Al content in hornblende (aluminum-in-hornblende barometry) and the assemblage titanite-magnetite-quartz were used to constrain the P, T and fO2 during the crystallization of the parent magmas. The Askaoun pluton was emplaced at temperature ca. 504°C - 633°C and at pressure ca. 0.9 - 4.66 ± 0.6 Kbars (average depth = 6.5 km) from a highly oxidized magma (log fO2 = ?24.8 to ?19.2).

关键词： Askaoun Pluton MMEs Hornblende Thermobarometry Ouzellargh-Sirwa Promontory Anti-Atlas Morocco

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Integrative herbal treatments of diabetes in Beni Mellal region of Morocco

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Journal of Integrative Medicine 2019年第2期17卷 93-99页

作者： Hanae Naceiri Mrabti Nidal Jaradat moha.ed Reda Kachmar Abdelaziz ed-Dra Abdelilah Ouahbi Yahia Cherrah Moulay el Abbes Faouzi Faculty of Medicine and Pharmacy Pharmacokinetic Team Laboratory of Pharmacology and Toxicology Université Mohammed V-Souissi Department of Pharmacy Faculty of Medicine and Health Sciences An-Najah National University Faculty of Sciences Health and Environment Laboratory Plant Protection Team Moulay Ismail University Faculty of Science Team of Microbiology and Health Laboratory of Chemistry-Biology Applied to the Environment Moulay Ismail University

Objectives: Diabetes is one of the most life-threatening chronic metabolic disorders and is considered a global health problem due to its prevalence and incidence. In Morocco, several herbal preparations are utilized to treat this disease. For this reason, the current study aimed to identify and to collect data about the medicinal plants utilized in folk medicine for the treatment of diabetes in the Beni Mellal region of ***: An ethnobotanical survey was carried out among 400 herbalists, competent villagers and traditional healers from the Beni Mellal region through direct interviews using a semistructured ***: Forty-five medicinal plants belonging to 25 families were identified for their use in diabetes treatment. Interview results showed that the most frequently used plants were Olea europaea, Salvia officinalis, Allium sativum and Trigonella foenum-graecum, with a relative frequency of citation values of24.3%, 23.0%, 22.5% and 20.5%, respectively. Moreover, in this study, the Fabaceae family was the most commonly reported plant family, and the leaves and roots were the most commonly used parts, for the treatment of ***: The Beni Mellal region of Morocco has an important floristic biodiversity of plants used to treat diabetes in traditional medicinal practice. This result provides a good database for pharmacological screenings in the search for plant-based antidiabetic medications.

关键词： Integrative medicine Medicinal plants Diabetes Beni Mellal Morocco Questionnaire

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Use of genetic algorithm in new approach to modeling of flood routing

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Journal of Oceanology and Limnology 2019年第1期37卷 72-78页

作者： el ALAOUI el FelS Abdelhafid ALAA Noureddine BACHNOU Ali Laboratory of Geosciences and Environnement Department of Earth Sciences Faculty of Science and Technics Gueliz (P. B. 549) Cadi Ayyad University Laboratory Applied Mathematics and Informatics Department of Math and Informatics Faculty of Science and Technics Gueliz (P. B. 549) Cadi Ayyad University

The hydrological models and simpli?ed methods of Saint-venant equations are used extensively in hydrological modeling, in particular for the simulation of the ?ood routing. These models require speci?c and extensive data that usually makes the study of ?ood propagation an arduous practice. We present in this work a new model, based on a transfer function, this function is a function of parametric probability density, having a physical meaning with respect to the propagation of a hydrological signal. The inversion of the model is carried out by an optimization technique called Genetic Algorithm. It consists of evolving a population of parameters based primarily on genetic recombination operators and natural selection to?nd the minimum of an objective function that measures the distance between observed and simulated data. The precision of the simulations of the proposed model is compared with the response of the Hayami model and the applicability of the model is tested on a real case, the N'Fis basin river, located in the High Atlas Occidental, which presents elements that appear favorable to the study of the propagation. The results obtained are very satisfactory and the simulation of the proposed model is very close to the response of the Hayami model.

关键词： Genetic Algorithm flood routing Hayami model simulation propagation

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Energy Guarantee Scheme for Real-time Systems with Energy Harvesting Constraints

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International Journal of Automation and computing 2019年第3期16卷 354-368页

作者： Hussein el Ghor Maryline Chetto Laboratory of Embedded and Networked Systems Faculty of TechnologyLebanese UniversityB.P.813 SaidaLebanon Laboratory of Numerical Sciences of Nantes University of Nantes2 Avenue of Professor Jean Rouxel4475 CarquefouFrance

The growth of environmental energy harvesting has been explosive in wireless computing systems especially when replacing or recharging batteries manually is *** work investigates the scheduling of periodic weekly hard real-time tasks under energy *** on this motivation,we proposed a real-time scheduling algorithm,namely energy guarantee dynamic voltage and frequency scaling(EG-DVFS),that utilizes the earliest deadline-harvesting(ed-H)scheduling algorithm combined with dynamic voltage and frequency *** one is qualified as real-time since tasks must satisfy their timing *** assume that the preemptable tasks receive dynamic priorities according to the earliest deadline first(edF)***-DVFS adjusts the processor's behavior by characterizing the properties of the energy source module,capacity of the stored energy as well as the harvested energy in a future ***,tasks are executed at full processor speed if the amount of energy in the battery is enough to finish its ***,the processor slows down task execution to the lowest possible processor speed while still guaranteeing to meet all the timing ***-DVFS mainly depends on the on-line computation of the slack time and the slack energy with dynamic voltage and frequency selection in order to achieve an improved system *** results show that EG-DVFS can achieve capacity savings up of up to 33%when compared to ed-H.

关键词： Real-time systems energy harvesting embedded systems power management dynamic voltage and frequency selection(DVFS) ed-H scheduler

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Keypoint Description Using Statistical Descriptor with Similarity-Invariant Regions

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Computer Systems Science & Engineering 2022年第7期42卷 407-421页

作者： Ibrahim el rube Sameer Alsharif Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityP.o.Box 11099Taif21944Saudi Arabia

This article presents a method for the description of key points using simple statistics for regions controlled by neighboring key points to remedy the gap in existing ***,the existent descriptors such as speeded up robust features(SURF),Kaze,binary robust invariant scalable keypoints(BRISK),features from accelerated segment test(FAST),and oriented FAST and rotated BRIEF(ORB)can competently detect,describe,and match images in the presence of some artifacts such as blur,compression,and ***,the performance and reliability of these descriptors decrease for some imaging variations such as point of view,zoom(scale),and *** intro-duced description method improves image matching in the event of such *** utilizes a contourlet-based detector to detect the strongest key points within a speciﬁed window *** selected key points and their neighbors con-trol the size and orientation of the surrounding regions,which are mapped on rec-tangular shapes using polar *** resulting rectangular matrices are subjected to two-directional statistical operations that involve calculating the mean and standard ***,the descriptor obtained is invariant(translation,rotation,and scale)because of the two methods;the extraction of the region and the polar transformation techniques used in this *** descrip-tion method introduced in this article is tested against well-established and well-known descriptors,such as SURF,Kaze,BRISK,FAST,and ORB,techniques using the standard OXFORD *** presented methodology demonstrated its ability to improve the match between distorted images compared to other descriptors in the literature.

关键词： Keypoint detection descriptors neighbor region similarity invariance

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Optimization of double chamber microbial fuel cell for domestic wastewater treatment and electricity production

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燃料化学学报 2015年第9期43卷 1092-1099页

作者： Amr el-Hag Ali Ola M.Gomaa Reham Fathey Hussein Abd el Kareem moha.ed Abou Zaid Polymer Chemistry Department Microbiology Department National Center for Radiation Research and Technology (NCRRT) Egyptian Atomic energy Authority ( EAEA ) Nasr City Cairo Egypt DAS Taibah University Medinah KSA

Microbial fuel cells(M FCs)represent a new approach for treating w aste w ater along w ith electricity *** present study addressed electricity production from domestic w astew ater using a mediator-less double chamber M *** electricity production w as monitored under different operational conditions for both summer and w inter *** of the anodic and cathodic chambers resulted in a maximal current of 0.784 and 0.645 m A w ith the maximal pow er intensity of 209 and 117 m W/m2in pow er duration of 24 h for the summer and w inter samples,*** electron microscopy show ed that the bacterial biofilm formation on the anode w as denser for the summer sample than that w hen the w inter sample w as used,so w as the total bacterial ***,samples taken during summer w ere considered better in electricity production and w aste w ater treatment than those taken during w inter basically because of the high microbial load during the hot *** parallel,there w as a decrease in both biological oxygen demand(BOD5)and chemical oxygen demand(COD)values which reached 71.8%and 72.85%,respectively at the end of the operation process for the summer sample,w hile there w as no evident decrease for the w inter *** the operating conditions not only increased the potential of using domestic w aste w ater in microbial fuel cells to produce electricity,but also improved the quality of the domestic w aste w ater.

关键词：微生物引起的燃料房间国内废水处理操作条件电生产

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A NEW HYBRIDIZed MIXed WEAK GALERKIN METHOD FOR SECOND-ORDER elLIPTIC PROBLEMS

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Journal of Computational Mathematics 2022年第4期40卷 499-516页

作者： Abdelhamid Zaghdani Sayed Sayari Miled el Hajji University of Tunis Boulevard du 9 avril 1939 TunisDepartment of MathematicsEnsitTaha Hussein AvenueMontfleuryTunisTunisia Northern Border University Faculty of Arts and ScienceRafhaP.O.840Saudi Arabia Carthage University Isteub2 Rue de l’Artisanat Charguia 22035 TunisTunisia Department of Mathematics Faculty of SciencesUniversity of JeddahSaudi Arabia ENIT-LAMSINBP.371002 Tunis-Belv´ed`ereTunis El Manar UniversityTunisia

In this paper,a new hybridized mixed formulation of weak Galerkin method is studied for a second order elliptic *** method is designed by approximate some operators with discontinuous piecewise polynomials in a shape regular finite element *** discrete inequalities are presented on discontinuous spaces and optimal order error estimations are *** numerical results are reported to show super convergence and confirm the theory of the mixed weak Galerkin method.

关键词： Weak Galerkin Weak gradient Hybridized mixed finite element method Second order elliptic problems

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Role of urine studies in asymptomatic febrile neutropenic patients presenting to the emergency department

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World Journal of Emergency Medicine 2021年第2期12卷 99-104页

作者： Hady Zgheib Aline el Zakhem Cynthia Wakil mohamad Ali Cheaito Rola Cheaito Antoine Finianos Ralphe Bou Chebl Rima Kaddoura Nader Al Souky Imad el Majzoub Department of Emergency Medicine American University of Beirut Medical CenterBeirut 11-0236Lebanon Department of Internal Medicine American University of Beirut Medical CenterBeirut 11-0236Lebanon

BACKGROUND: The role of urine studies in the detection of urinary tract infection(UTI) in febrile neutropenic patients with urinary symptoms(having a urinary catheter or having a positive urine analysis) is inarguable. However, the evidence is scarce regarding the indication for urine studies in asymptomatic(i.e., without urinary symptoms) patients with febrile neutropenia(FN) presenting to the emergency department(ed). The aim of this study is to evaluate the need for obtaining urine studies in asymptomatic febrile neutropenic ***: This was a retrospective cohort study conducted on adult cancer patients who presented to the ed with FN and had no urinary symptoms. We included all ed presentations of eligible patients between January 2013 and September 2018. Student's t-test and Wilcoxon rank-sum test were used for continuous data, while Chi-square and Fisher's exact tests were used for categorical data. Participants were divided into two groups based on their urine culture(UC) results: negative and positive UCs. Two cut-offs were used for positive UC results: ≥10~5 cfu/m L and ≥10~4 cfu/m ***: We included 284 patients in our study. The age of our patient population was 48.5±18.5 years. More than two-thirds(68.7%) of patients had severe neutropenia, while only 3.9% and 9.9% of the patients had positive UCs at ≥10~5 cfu/m L and ≥10~4 cfu/m L, respectively. UCs were expectedly positive in most patients with urinalysis(UA) abnormalities. However, 27.3% and 32.1% of patients with positive UCs at ≥10~5 cfu/m L and ≥10~4 cfu/m L respectively had a normal UA. CONCLUSIONS: In our study, the incidence of UTI in adult febrile neutropenic cancer patients who present to the ed without urinary symptoms is low. Consequently, routine urine testing may not be warranted in this population, as it adds unnecessary financial burdens on the patients and delays timely management.

关键词： Adult Cancer Emergency department Febrile neutropenia Urine testing

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Two-point compression ultrasonography: Enough to rule out lower extremity deep venous thrombosis?

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World Journal of Emergency Medicine 2021年第4期12卷 268-273页

作者： Ralphe Bou Chebl Nader el Souki Mirabelle Geha Imad Majzoub Rima Kaddoura Hady Zgheib Department of Emergency Medicine American University of BeirutBeirut 11072020Lebanon

BACKGROUND: Deep venous thrombosis(DVT) is a major cause of morbidity and is a common presenting complaint to the emergency department(ed). Point-of-care two-point compression ultrasonography has evolved as a quick and effective way of diagnosing DVT. The purpose of this study is to validate the prevalence and distribution of venous thrombi isolated to proximal lower extremity veins, other than common femoral and popliteal veins in patients with ***: This is a single-center retrospective study that looked at patients presenting to the ed of a tertiary care hospital between January 2014 and August 2018. The clinical presentation and laboratory and imaging results were obtained using the hospital's electronic medical ***: A total of 2,507 patients underwent a lower extremity duplex ultrasound during the study period. Among them, 379(15%) were included in the study. The percentages of isolated thrombi to the femoral vein and deep femoral vein were 7.92% and 0.53%, respectively. When the patients were stratified into the two groups of isolated DVT and two-point compression DVT, there were no statistically significant differences in the laboratory results between both groups. However, immobilized patients and patients with recent surgeries were more likely to have an isolated ***: Thrombi isolated to proximal lower extremity veins other than the common femoral and popliteal veins make up 8.45% of DVTs. Given this significant number of missed DVTs, the authors recommend the addition of the femoral and deep femoral veins to the two-point compression exam.

关键词： Lower extremity Deep venous thrombosis Emergency department Two-point compression ultrasonography

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