Seasonal and physiological variation of gross composition of camel milk in Saudi Arabia

Weekly milk samples from ten lactating she camels (Camelus dromedarius) were analyzed regularly for 11 months after parturition. The main values for all samples were 2.54 ± 0.72g/100g fat matter, 3.07 ± 0.30g/100g protein, 4.21 ± 0.37g/100g lactose and 0.76 ± 0.10g/100g ash. Fat content decreased from 3.41% at the first week to 2.29% at 36th week post-partum with rising at the end to 2.95% while protein decreased from 3.44% at week 1 to 2.79% at the end of lactation, and lactose from 4.48% to 3.90%. Ash increased from 0.72% to 0.82% then decreased down to 0.71%. Regarding seasonal variation, maximum level of fat was observed in January (3.46%) and minimum at summer time (2.29% in July). Protein content was maximum in February (3.32%) and minimum in October (2.76%). For lactose, the maximum mean value was 4.38% in February and the minimum in September (3.83%). The ash content was quite variable in January then stable all over the year. All components were highly positively correlated, except between fat and ash content which was not significant. No significant effect of parity, gestation length, calf body weight at birth or adult weight on all milk content. The average total milk production was 1207 L for 11 months range between 875 and 1616 L. The correlation between milk production and milk components are significantly negative. (Résumé d'auteur

Effect of different feeding regime on body weight, ovaries sïze fevelopments and blood estradiol, progesterone level in pre-pubertal she-camel (Camelus dromedarius)

The present study aimed ta investigate the effect of nutrition on body weight gain, avaries development, blood components (total protein, alblllllen, globulin, cholesterol and glucose) and hormone level (estradiol and progesterone) in pre-pubertal she-camels. Fourteen dromedary she-camels (Camelus dromedarius) were divided in two groups CA and B) similar body weight and age ai the siart of the experiment (200 kg and 12 month, respectively). Group A received diet with 13% Crude Protein (CP) and 2.9 Meal Metabolisable Energy (ME). Group B received the traditional diet of the fann. Both diets contained 25:75 forage:concentrate. Individual feed intake was calculated after 14 days of adaptation period. Feed offered and arts was recorded daily during the whole experimental period of 12 months. Blood samples were taken from each group every 15 days throughout the experimental period. Estradiol, progesterone concentrations were measured using ELISA kits. Body weight and average daily gain for the Ist 6 months did not show significant differences between treatments. On the contrary for the last 6 months, treatment A significantly increased body weight and daily weight gain when compared to B (70.07±8.17 kg and 0.389±0.05 kg day-' vs. 37.86±8.17 kg and 0.210±O.05 kg day-l, respectively. Group A was more efficient converting feed to body weight comparing with group B. Feed Conversion Ratio (FCR) for the whole period was 11.25 and 13.74 for Group A and B, respectively. Group B had greater ovary size than Group A but the difference was not significant. Size of right ovary was smaller than the left one and season had positive effects on both right and left ovary sizes. Greater ovary sizes were observed in Winter and Spring comparing with Swnmer and Autumn. Group A had higher blood estradiollevel comparing with Group B while there was no difference between groups in progesterone levels. Il was concluded that feeding regirne did not affect body weight, daily body weight gain and blood progesterone levels but improved feed conversion ratio and blood estrogen levels. (Résumé d'auteur

Synthesis and characterization of new Oxazine , Thiazine and Pyrazol derived from chalcones

In this study, chalcones were synthesis by condensing 2-acetylpyridine with aromatic aldehyde derivatives in dilute ethanolic potassium hydroxide solution at room temperature according to Claisen-Schmidt condensation. After that, new heterocyclic derivatives such as Oxazine, Thiazine and Pyrazol were synthesis by reaction between chalcones with urea, thiourea and hydrazine hydrate respectively scheme 1. All these compounds wrer characterization by FTIR, 1H-NMR spectroscopy and elemental analysis

Effect of different feeding system on body weight, testicular size developments, and testosterone level in pre-pubertal male camel (Camelus dromedarius)

Eighteen dromedary males (Camelus dromedarius) were used to investigate the effect of nutrition on body weight, size of the testes, and blood testosterone concentrations in pre-pubertal male camels. Animals were divided into two groups of 9 animals each. Group A received a diet with 13% crude protein (CP) and 2.9 MCal (ME), whereas Group B received the traditional diet of the farm, and each animals' feed intake was calculated after allowing a 14 day adaptation period. Diets contain 25:75 (roughage: concentrate, respectively). Blood samples were taken from the same five animals from each group, every 15 days during the whole experimental period and plasma testosterone concentrations were measured. There was no significant difference in total body weight gain over the whole experimental period between Group A and B, although Group A showed a significant increase in body weight over the last 6 months compared with Group B. Group A consumed less feed and were more efficient at converting feed to body weight than Group (B), as shown by the (FCR) over the whole period which was 9.25 for Group A and 13.03 for Group B. There was no significant difference in testicle size between Groups A and B at the start of the experimental period, blood testosterone levels were significantly higher in Group A compared with Group B, but although there was an increase in testicle size over the experimental period, there was no significant increase in blood testosterone levels. (Résumé d'auteur

A Machine Learning Approach for Plagiarism Detection

Plagiarism detection is gaining increasing importance due to requirements for integrity in education. The existing research has investigated the problem of plagrarim detection with a varying degree of success. The literature revealed that there are two main methods for detecting plagiarism, namely extrinsic and intrinsic. This thesis has developed two novel approaches to address both of these methods. Firstly a novel extrinsic method for detecting plagiarism is proposed. The method is based on four well-known techniques namely Bag of Words (BOW), Latent Semantic Analysis (LSA), Stylometry and Support Vector Machines (SVM). The LSA application was fine-tuned to take in the stylometric features (most common words) in order to characterise the document authorship as described in chapter 4. The results revealed that LSA based stylometry has outperformed the traditional LSA application. Support vector machine based algorithms were used to perform the classification procedure in order to predict which author has written a particular book being tested. The proposed method has successfully addressed the limitations of semantic characteristics and identified the document source by assigning the book being tested to the right author in most cases. Secondly, the intrinsic detection method has relied on the use of the statistical properties of the most common words. LSA was applied in this method to a group of most common words (MCWs) to extract their usage patterns based on the transitivity property of LSA. The feature sets of the intrinsic model were based on the frequency of the most common words, their relative frequencies in series, and the deviation of these frequencies across all books for a particular author. The Intrinsic method aims to generate a model of author “style” by revealing a set of certain features of authorship. The model’s generation procedure focuses on just one author as an attempt to summarise aspects of an author’s style in a definitive and clear-cut manner. The thesis has also proposed a novel experimental methodology for testing the performance of both extrinsic and intrinsic methods for plagiarism detection. This methodology relies upon the CEN (Corpus of English Novels) training dataset, but divides that dataset up into training and test datasets in a novel manner. Both approaches have been evaluated using the well-known leave-one-out-cross-validation method. Results indicated that by integrating deep analysis (LSA) and Stylometric analysis, hidden changes can be identified whether or not a reference collection exists

Oxidative Coupling Reaction for Micro Trace Analysis of Mebendazol Residual with p-bromoaniline in Presence of n- bromosuccinimide

تم تطوير طريقة سريعة ودقيقة ومناسبة لتعيين التراكيز النزرة للمركب الدوائي الميبندازول . تستند هذه الطريقة الى التحلل القاعدي للمركب الدوائي بواسطة 1 مولاري هيدروكسيد الصوديوم ومن ثم اكسدته بواسطة ن-بروموسكسنمايد  يتبعه تفاعل ازدواج مع الكاشف 4- بروموانيلين لتكوين ملركب ملون له اقصى امتصاص عند الطول الموجي 434 نانوميتر .من معادلة الانحدار الخطي وجد ان مدى الخطية التي تطاوع قانون بيير هي (0.6-2.8) مايكروغرام لكل مللتر. تم دراسة الظروف المثلى لعملية التقديروالتي  تعتير متوافقة وذلك من خلال حساب معدل قيم الانحراف القياسي النسبي (1.153-1.303) ودقيقة من خلال حساب الخطا النسبي (-0.5940-1.7821) . كانت قيم الامتصاصية المولارية وحساسية ساندل هي : 29825لتر \مول .سم ,0.0099 مايكروغرام \سم 2 على التوالي .حد الكشف والحد الكمي للطريقة المطورة كانت 0.04696 و 0.156548 مايكروغرام \مللتر  على التوالي .طبقت الطريقة بنجاح في تعيين المركب الدوائي في مستحضراته الصيدلانية وبمعدل استردادية بلغت 100.77%.Rapid, reproducible and accurate method has been developed for the assay for of mebendazol (MBZ) residual assay. The method is based on alkaline hydrolysis of MBZ with sodium hydroxide then oxidation with N-bromosuccinimide (NBS) followed by coupling with 4-Bromoaniline (4-BA) to yield a highly colored product absorbed at maximum 434 nm. Regression analysis of linearity range was found (0.6-2.8) µg.ml-1.  The optimum conditions that affect the oxidation were studied. The developed method was found to be precise with mean value of relative standard deviation (1.153- 1.303) and accurate with relative error (-0.5940-1.7821) .The calculated molar absorptivity and sandal sensitivity values of (29825 L.mol-1.cm-1), 0.0099 µg.cm-2 respectively.  The limit of detection and limit of quantitation were of 0.04696, 0.156548 µg.ml-1 respectively .The suggested method showed good recovery with a mean value of 100.77% for analysis of dosage forms

Energy Savings by Form Design in Schools

This study is a part of a comprehensive study that aims to investigate the impact of school building form on energy consumption. The methodology included two parts: in part one the study conducted a survey that covered all schools under Abu Dhabi Department of Education and Knowledge (ADEK) authority; in addition to performing a design model analysis that helped identify the possible form design variables that can impact the building performance with their value ranges. Part two the study performed an hour-by-hour computer simulation to test the impact of different building form variables on energy consumption. The simulation was carried out in two phases, Phase I covered the investigation of the existing design models obtained from ADEK without any manipulation of the form variables. While Phase II covered a broader range of cases under more controlled conditions. The investigation was based on Abu Dhabi climatic conditions with respect to ADEK school requirements and Estidama green building guidelines. The simulation results revealed the effect of each design variable of the school building form on energy consumption and CO2 emissions. The most important outcome of the study is the establishment of two concepts to evaluate the behavior of building form in influencing energy performance; i.e., form verticality and horizontality

Reduction of pain intensity for patients undergoing arterial sheath removal after coronary artery angioplasty: An interventional program

Background: Coronary artery disease is one of the most prominent forms of cardiovascular illness, which is a condition that affects people from all over the world. It has been proven beyond a shadow of a doubt that this disease is the primary reason for death in both industrialized nations and undeveloped nations (Yousefi, Rezaei and Hoseini, 2015). Objectives: To assess pain severity scores and vital signs before interventional program for patients undergoing arterial sheath removal after coronary angioplasty. To determine the effect of the interventional program on severity of pain through measuring vital signs and pain severity scores for patients undergoing arterial Sheath Removal after coronary angioplasty. Methodology: A quasi-experimental design of the study has been used in the present study to assess reduction of pain intensity for patients undergoing Arterial Sheath Removal after coronary artery angioplasty: an interventional program in Al Hussain Teaching Hospital during the period from January 21st, 2023 to April 13th 2023. Those patients are divided into two groups 30 patients for the study group was exposed to the interventional program and 30 patients have been assigned to the control group who are not exposed to the interventional program. Results: Descriptive analysis of studied sample pain intensity for study and control groups before and after applying the interventional program. It can be seen that mean score of pain for both study and control groups before applying interventional program have nearly the same mean score (5.50±2029 vs. 5.73±2.196) respectively. In contrast after applying interventional program the mean score of pain for study group is much lesser than control group as follows respectively (0.66±0.802 vs.5.40±1.830). Conclusion: There are highly significant differences regarding pain intensity between the study and control groups of the current study after applying the interventional program. There are highly significant differences regarding following vital signs readings between the study and control groups of the current study after applying the interventional program. Recommendations: Adopt the interventional program to be used and applied in other hospitals nationally. Train nurses to apply the program in relevant situation to achieve a benefits of the patients and to improve nursing care