بن لمبارك سمية, بوهالي جمال

كلية العلوم الاجتماعية والإنسانية-جامعة زيان عاشور - الجلفة · الجزائر

Étude RésuméL'étude portait sur « Faire face à l'épuisement professionnel des enseignants desstratégies d'enseignement secondaireA travers l'étudela relation entre l'accord et le degré d'épuisement professionnel chez lesenseignants des stratégies d'enseignement secondairela relation entre chacun de la stratégie pour résoudre le problème et de lastratégie d'évitement de l'émotion et de la stratégie avec des degrés depénétration psychologiquedétecter les différences entre les sexes dans le degré de combustionpsychologiquedétecter les différences entre les sexes dans le degré de stratégies traitantLorsque l'élève a utilisé l'approche descriptive. L'échantillon de l'étudecomprenait 63 professeur et professeur a distribué trois écoles secondaires dansla commune de Djelfa, testé au hasardL'utilisation de deux outils pour l'étude sont: une mesure Maslash combustionpsychologique et des stratégies à l'échelle pour faire face Onederlroparker etl'étude a révélé les résultats suivantsL'absence de corrélation entre l'accord et le degré de la stratégie decombustion psychologiqueIl existe une corrélation inverse entre la stratégie de résolution de problèmeset le degré de combustion psychologiqueL'absence de corrélation entre la stratégie de l'émotion et le degré decombustion psychologiqueL'absence de corrélation entre le degré de la stratégie d'évitement et de lacombustion psychologiqueIl n'y avait pas de différence statistiquement significative dans le degré decombustion psychologique en raison des différences entre les sexes- Il n'y avait pas de différence statistiquement significative dans le degré destratégies pour faire face en raison du sexe.

أمين شباك, شريف فؤاد

كلية الحقوق والعلوم السياسية-جامعة قاصدى مرباح ورقلة · الجزائر

ان الهدف من هذه الدراسة هو بيان الجهود الدولية التي بذلت لتمكين ضحايا الجرائم الدولية من استفاء حقوقهم والتيتجسدت في مجموعة الضمانات التي جسدها وأقرها القانون الدولي الجنائي لصالحهم سوء على مستوى الإختصاص أوالإجراءات وكذلك بيان الجهود التي بذلت لإزالة العوائق والعقبات التي تعترض هذا المسعى فضلا عن بيان الجهود التي يجبأن تبذل مستقبلا لتذليل هذه العقبات وسد النقائص والثغرات التشريعية التي تقف حائلا دون تمكن ضحايا الجرائم الدولية مناستيفاء حقوقهم

H. Allali, Nassim Djabou

كلية العلوم-جامعة أبو بكر بلقايد - تلمسان · الجزائر

Depuis la nuit des temps.les humains apprécient les vertus apaisantes et analgésiques des plantes. A travers les siécles.les traditions humaines ont su développer la connaissance et l'utilisation des plantes médicinales. Si certaines pratique medicales paraissent etranges et relevent de la magie , d'autres , au contaire , semblent plus fondees ,plus efficaces pourtant ,toutes ont pour objectif de vaincre la souffrance et d'ameloirer la sante des humains .

Raedah Omar Salim Al-Minhaliyah , Gerald Matua Amandu, Sulaiman Al Sabei

كلية التمريض-جامعة السلطان قابوس · عمان

Clinical adverse events are major causes of mortality in hospitals and significantly influence patient safety, causing an economic burden on the healthcare system. Most hospital adverse events are linked to the attitudes of healthcare professionals toward safety. Purpose: The aim of this study was to assess the relationship between nurses' attitudes toward patient safety and their reporting of clinical adverse events and adverse patient events. Methods: A descriptive, cross-sectional design was used to conduct the study in Sultan Qaboos Hospital, Salalah, and Royal Hospital, Muscat, with participants recruited from the inpatient units. Data to evaluate nurses' attitudes toward patient safety were collected using the Safety Attitude Questionnaire (SAQ), while data on attitudes toward reporting clinical adverse events were collected using the Reporting of Clinical Adverse Events Scale (RoCAES). Data on the types of adverse events (AEs) were collected using the Adverse Patient Events Scale (APES). Results: One hundred and eighty-four questionnaires were administered from February to April 2022, with a response rate of 96.8%. The results showed that nurses had an overall low positive perception of patient safety and reporting of clinical adverse events. Recognition of stress (M = 3.102, SD = 0.944) and clarity of reporting adverse events (M = 4.40, SD = 1.640) received the lowest safety scores. Patient and family complaints (M = 1.96, SD = 1.846) had the highest rate of AEs reported over the past year. There was no significant association between nurses' perception of patient safety and their attitudes toward RoCAEs. However, linear regression analysis showed that nurses' attitudes toward patient safety (β = -0.176 ± 0.146; p = 0.026), their attitudes toward RoCAEs (β = 0.185 ± 0.01; p = 0.016), and the nurse-to-patient staffing ratio (β = 0.228 ± 0.024; p = 0.016) were predictors of adverse events in clinical areas. Conclusion: There was a low positive safety culture among nurses, and their attitude toward reporting clinical adverse events was generally negative. Patient and family complaints were the most commonly reported adverse events, followed by verbal abuse of patients and families, nosocomial infections, medication errors, and patient falls, respectively. The study also found that complaints occurred more frequently than in previous studies conducted in Oman. Furthermore, there was no significant relationship between nurses' attitudes toward patient safety and their attitudes toward reporting clinical adverse events. Finally, nurses' attitudes toward patient safety, their attitudes toward reporting clinical adverse events, and the nurse-to-patient staffing ratio were predictors contributing to the occurrence of adverse patient events. These findings provide key insights into the status of patient safety in Oman that key stakeholders in hospitals and the Ministry of Health could use to improve safety culture, including raising awareness of patient safety.

Ayman Badawi, Mohammad Ahmad Abdulla

كلية الاداب والعلوم-الجامعة الأمريكية - الشارقة · الامارات

In 2015, Ayman Badawi (Badawi, 2015) introduced the dot product graph associated to a commutative ring A. Let A be a commutative ring with nonzero identity, 1 n < 1 be an integer, and R =A x A x ... x A (n times). We recall from (Badawi, 2015) that total dot product graph of R is the (undirected) graph TD(R) with vertices R* = R \ {(0, 0, ..., 0)}, and two distinct vertices x and y are adjacent if and only if xy = 0 [is an element of] A (where xy denote the normal dot product of x and y). Let Z(R) denotes the set of all zero-divisors of R. Then the zero-divisor dot product graph of R is the induced subgraph ZD(R) of TD(R) with vertices Z(R) = Z(R)* \ {(0, 0, ..., 0)}. Let U(R) denotes the set of all units of R. Then the unit dot product graph of R is the induced subgraph UD(R) of TD(R) with vertices U(R). Let n 2 and A = Zn. The main goal of this thesis is to study the structure of UD(R = A x A).

Nesrine Lahiani, Djamel Edinne Ouebel, Lynda Meghenez , Zakaria Rezzoug

كلية العلوم-جامعة سعد دحلب - البليدة · الجزائر

Malika Oueari, Miassa Yahiaoui, Nouara Salhi

كلية العلوم الطبيعية والحياتية-جامعة عبد الرحمان ميرة - بجاية · الجزائر

Ce travail porte sur une étude cytogénétique de la variété n°01 « Saïda » de l’orge cultivée Hordeum vulgare L..Nous avons coloré des racines jeunes, prétraités, prélevé à partir des graines germées de la variété étudiée, suivant la technique de coloration classique de Feulgen, pour rendre les chromosomes condensés visible au microscope optique, afin de les dénombrer et établir leurs caryotypes et caryogramme.Les caryotypes réalisés montrent que cette espèce Hordeum vulgare L. est diploïde (2n= 2x), et compte un nombre chromosomique de 14 chromosomes, regroupés en sept paires chromosomiques dont des Métacentrique, submétacentriques et des chromosomes SAT.Suivant le degré d’asymétrie, le caryogramme de cette variété d’ Hordeum vulgare L. se classifie symétrique, avec un indice d’asymétrie IAs de 59,38%.

حسان بوبعاية, محمد محمدي, ياسين معوش

كلية العلوم الاقتصادية والتجارية وعلوم التسيير-جامعة محمد بوضياف - المسيلة · الجزائر

William L. Roberts, Zepeng Li

جامعة الملك عبدالله للعلوم والتقنية · السعودية

As a byproduct of incomplete combustion, soot attracts increasing attentions as extensive researches exploring serious health and environmental effects from soot particles. Soot emission reduction requires a comprehensive understanding of the mechanism for polycyclic aromatic hydrocarbons and of soot formation and aging processes. Therefore, advanced experimental techniques and numerical simulations have been conducted to investigate this procedure.In order to investigate the effects of dimethyl ether (DME) mixing on soot particle size distribution functions (PSDFs), DME was mixed in premixed ethylene/oxygen/argon at flames at the equivalence ratio of 2.0 with a range of mixing ratio from 0% to 30% of the total carbon fed. Two series of atmospheric pressure flames were tested in which cold gas velocity was varied to obtain different flame temperatures.The evolution of PSDFs along the centerline of the flame was determined by burner stabilized stagnation probe and scanning mobility particle sizer (SMPS) techniques, yielding the PSDFs for various separation distances above the burner surface. Meanwhile, the flame temperature profiles were carefully measured by a thermocouple and the comparison to that of simulated laminar premixed burner-stabilized stagnation flame was satisfactory. Additionally, to understand the chemical role of DME mixing in soot properties, characterization measurements were conducted on soot samples using thermo-gravimetric analysis (TGA) and elemental analysis (EA).Results of the evolution of PSDFs and soot volume fraction showed that adding DME into ethylene flame could reduce soot yield significantly. The addition of DME led to the decrease of both the soot nucleation rate and the particle mass growth rate. To explain the possible mechanism for the observation, numerical simulations were performed. Although DME addition resulted in the slight increase of methyl radicals from pyrolysis, the decrease in acetylene and propargyl radicals inhibited the production of polycyclic aromatic hydrocarbons. At the same time, the addition of DME gave rise to the increase of the flame temperatures, which favored the production of OH radicals. The incremental concentration of OH radicals promoted the oxidation rate of soot particles. Additionally, soot samples from flames with higher DME mixing ratios showed higher O/C, H/C mass ratios and thus better oxidation characteristics.In summary, the addition of DME reduces soot emission in two ways: on the one hand, it inhibits soot nucleation and mass/size growth, then the production of soot particles decreases; on the other hand, it promotes soot oxidation process by increasing the concentration of OH radicals and improving the oxidation behavior of the soot particles, then more particles are oxidized. Both of them are responsible for the reduction of soot emissions at the presence of DME.

Musab Abdalgader Abdalkreem, Mohamed Elhafiz Mustafa Musa

كلية الدراسات العليا-جامعة السودان للعلوم والتكنولوجيا · السودان

Data mining is the automatic search of huge data to discover patterns and trends that gobeyond simple analysis. Data mining is also known as Knowledge Discovery in Data(KDD). This study investigates the discovery of the survival rate or survivability of acertain disease is possible by extracting the knowledge from the data related to thatdisease. To do such investigate a large data set needed one of these data sources isSEER[1] (Surveillance Epidemiology and End Results), which is a unique, reliable andessential resource for investigating the different aspects of cancer. In this study we haveinvestigated three data mining techniques Multilayer Perceptron (MLP), K-nearestneighbor and the C4.5 decision trees the goal is to find the best accuracy to predict 5years survivability of breast cancer.SEER database (period of 1973-2009 with 657,712 records) were used, starting fromprevious study we determined common variables use, after preprocessed there are 18variables and 180,302 records.Weka was used to train and test the three techniques. The result show that the besttechnique is C4.5 accuracy is %95.6 and the second technique is K-nearest neighborwith accuracy %95.4 and the worst is MLP with accuracy %95.3.