EFFECT OF GIBBERELLIC ACID ON SEED GERMINATION PERCENTAGE AND GROWTH PERFORMANCE OF TWO CASSIA SPECIES

The experiment was conducted in the plastic-house of the Department of Horticulture and Landscape at the College of Agriculture and Forestry, University of Mosul, Iraq during the period of 10/4/2018 and 31/1/2019 on two species of Cassia. Seeds were planted each seed depth twice the length of the seed in a plastic bowl (8 cm height, 6 cm diameter) full with a medium consisting of perlite, peat moss and sand with 1:1:1 (v/v/v) ratio. The developing seedling were then transferred to plastic pots with a diameter of 15 cm and a height of 12 cm in the same agricultural medium and transplanted into the plastic house after germination. The experiment was carried out by using two factors in split-plot design within randomized complete block design (RCBD). The first factor was two species of Cassia: Cassia surattenesis and Cassia siamea, while the second factor was soaking seeds in gibberellic acid at three levels of (0, 500 and 1000 mg L-1) for 48 hrs. The results showed that C. surattensis was superior in all seedling traits except for the leaf area, which was higher than C. siamea. Gibberellic acid had an important role in improving seedling properties and when used at (1000 mg L-1) on C. siamea the seedling height and leaf area were increased. There were no significant differences in both species of Cassia in some traits including seedling height. C. surattensis was characterized by its ability to flower in November after the appearance of flower buds at the beginning of the same month. Species differed in their tolerance to environmental conditions C. surattensis survived under cold waves, however, C. siamea was unable to survive under the same conditions in January

The Degree of Effectiveness of the Educational Decision-Making Process among the Principals of Zarqa Kasbah Schools from the Teachers\u27 Point of View درجة فاعلية عملية اتخاذ القرارات التربوية لدى مديري مدارس تربية قصبة الزرقاء من وجهة نظر المعلمين

Abstract: The study aimed at identifying the degree of effectiveness of the educational decision-making process of the principals of Zarqa Kasbah from the teachers\u27 point of view. It, also, studied the effect of variables on the response of the sample of the study. The study used the descriptive survey methodology. The tool of the study consisted of (14) items, and the validity and reliability of the tool was confirmed. The study was applied on a sample of (375) male and female teachers, who were chosen by a simple random method. The study proved the following results: the degree of effectiveness of educational decision-making process of the principals of Zarqa Kasbah education school from the teachers’ point of view, was medium. The results indicated that there were statistically significant differences at the level (0.05\u3ea) in the mean. Responses of the study sample subjects about the effectiveness of the educational decision-making process of the school principals of Zarqa Kasbah education schools, from the teachers \u27viewpoint. These differences were due to the variables of gender and academic qualification. Moreover, it indicated that there were no statistically significant differences due to the variables of years of experience and specialization. In light of the proved results, the study recommended a set of recommendations, the most important of which are: increasing the participation of teachers in the school decision­ making process, in the way that reflected in the raising the effectiveness of educational decisions. ملخص: هدفت الدراسة التعرف إلى درجة فاعلية عملية اتخاذ القرارات التربوية لدى مديري مدارس تربية قصبة الزرقاء من وجهة نظر المعلمين ودراسة أثر المتغيرات في استجابة افراد عينة الدراسة، واستخدمت الدراسة المنهج الوصفي المسحي وتم تطوير أداة دراسة تكونت من (14) فقرة وتم التأكد من صدق الأداة وثباتها. وطبقت الدراسة على عينة بلغت (375) معلماً ومعلمة وتم اختيارهم بالطريقة العشوائية البسيطة وتوصلت الدراسة إلى النتائج الآتية: إن درجة فاعلية عملية اتخاذ القرارات التربوية لدى مديري مدارس تربية قصبة الزرقاء من وجهة نظر المعلمين جاءت متوسطة، بينما دلت النتائج إلى وجود فروق ذات دلالة احصائية عند مستوى (0.05≥α) في متوسط استجابات أفراد عينة الدراسة عن فاعلية عملية اتخاذ القرارات التربوية لدى مديري مدارس تربية قصبة الزرقاء من وجهة نظر المعلمين تعزى لمتغير الجنس والمؤهل العلمي بينما دلت إلى عدم وجود فروق ذات دلالة احصائية تعزى لمتغيري سنوات الخبرة والتخصص. وفي ضوء نتائج الدراسة أوصت الدراسة بمجموعة من التوصيات من أهميها: زيادة مشاركة المعلمين في عملية اتخاذ القرارات المدرسية بالشكل الذي ينعكس على زيادة فاعلية القرارات التربوية

Bis(2,6-diamino­pyridin-1-ium) hexa­aqua­cobalt(II) disulfate dihydrate

In the title compound, (C5H8N3)2[Co(H2O)6](SO4)2·2H2O, the complete complex cation is generated by crystallographic inversion symmetry, such that the CoII cation is octa­hedrally coordinated by six water mol­ecules. The organic cation is essentially planar, with a maximum deviation of 0.013 (1) Å. In the crystal structure, the ions and mol­ecules are linked into a pseudo-layered three-dimensional supra­molecular network via O—H⋯O and N—H⋯O hydrogen bonds. Weak inter­molecular π–π inter­actions further stabilize the crystal structure [centroid–centroid distance = 3.5231 (4) Å]

Electron beam crosslinked natural rubber/multiwalled carbon nanotube nanocomposite

The physical properties of the rubber blends are influenced by vulcanization and filler distribution. Normally, rubbers are vulcanized by systems based on sulfur or peroxide with the most common filler carbon black. Radiation can also produce crosslink densities like those obtained by sulphur curing, but the net effects, are similar, though not identical. The type of crosslink formed in this method (–C–C–) give rise to better mechanical properties at higher temperature. This work reports on the investigations carried out on natural rubber (SMR) filled with the multiwall carbon nanotubes (MWCNTs). This system of SMR/MWCNTs was subjected to different radiation dosages and compared with nonradiated samples in order to determine the improvement in mechanical properties of the rubber system in the presence of MWCNTs and irradiation dosages. The amount of MWCNTs in this study was varied from 1 to 7 Phr and the irradiation doses were varied from 50 to 200 KGy. Mechanical properties, especially, tensile strength (TS), elongation at break had been studied as a function of irradiation dose and degree of loading with MWCNTs. Gel fraction indicated an increase in the degree of crosslink with the increase in the MWCT and radiation dosage. XRD was carried out to check the increase in the crytallinty of the nanocomposite system. The overall results obtained indicate significant improvement in the mechanical and thermal properties by radiation crosslinking in presence of MWCNTs. These results were further supported by TEM micrograph and nanoindentation

Analyzing D-wave quantum macro assembler security

As we enter the quantum computing era, security becomes of at most importance. With the release of D-Wave One in 2011 and most recently the 2000Q, with 2,000 qubits, and with NASA and Google using D-wave Systems quantum computers, a thorough examination of quantum computer security is needed. Quantum computers underlying hardware is not compatible with classical boolean and binary-based computer systems and software. Assemblers and compliers translate modern programming languages and problems into quantum-annealing methods compatible with quantum computers. This paper presents a vulnerability assessment utilizing static source code analysis on Qmasm Python tool. More specifically, we use flow-sensitive, inter-procedural and context-sensitive data flow analysis to uncover vulnerable points in the program. We demonstrate the Qmasm security flaws that can leave D-Wave 2X system vulnerable to severe threats

Analyzing D-wave quantum macro assembler security

As we enter the quantum computing era, security becomes of at most importance. With the release of D-Wave One in 2011 and most recently the 2000Q, with 2,000 qubits, and with NASA and Google using D-wave Systems quantum computers, a thorough examination of quantum computer security is needed. Quantum computers underlying hardware is not compatible with classical boolean and binary-based computer systems and software. Assemblers and compliers translate modern programming languages and problems into quantum-annealing methods compatible with quantum computers. This paper presents a vulnerability assessment utilizing static source code analysis on Qmasm Python tool. More specifically, we use flow-sensitive, inter-procedural and context-sensitive data flow analysis to uncover vulnerable points in the program. We demonstrate the Qmasm security flaws that can leave D-Wave 2X system vulnerable to severe threats

Abdominal cystic echinococcosis in Bangladesh: a hospital-based study

Introduction: Cystic echinococcosis (CE) is reported from nearly all geographic areas of Bangladesh, but little information is available on its epidemiologic and clinical features. The aim of this study was to describe the clinical manifestations of hepatic and abdominal CE cases presenting to tertiary referral hospitals in Dhaka, Bangladesh. Methodology: A retrospective study was conducted via chart reviews of hepatic and abdominal CE patients under care at tertiary referral hospitals in Dhaka, Bangladesh, between 2002 and 2011. Age, sex, education level, occupation, urban versus rural residence, drinking water source, history of dog ownership, cyst type and location, and clinical manifestations were recorded for all patients. Results: Of the 130 patients enrolled, 92 (70.8%) were female and 38 (29.2%) were male. The majority of patients were from rural (76.2%) rather than urban (23.8%) areas. All cases were from the northern part of the country, with no cases reported from the south or southeast. Most patients were between 21 and 40 years of age. A total of 119 patients (91.5%) had cysts only in the liver, with the remaining 8.5% having cysts in both the liver and lungs or in the abdominal cavity. Seventy-six (58.5%) of the hepatic cysts were stage CE1, indicating recent infection. Conclusions: Active transmission of Echinococcus granulosus appears to be occurring in Bangladesh, as indicated by the high number of CE1 hepatic cysts seen at tertiary care hospitals. Community ultrasound screening studies are warranted to better define the distribution of cases and risk factors for parasite transmission

Acute scrotum as a complication of Thiersch operation for rectal prolapse in a child

BACKGROUND: We report a case of acute scrotal condition that presented in a four year old male child one year after being treated for an idiopathic rectal prolapse utilizing Thiersch wire. CASE PRESENTATION: The acute scrotum had resulted from spreading perianal infection due to erosion of the circlage wire. The condition was treated with antibiotics and removal of the wire. The child made an uneventful recovery. CONCLUSION: This case highlights that patients with Thiersch wire should be followed until the wire is removed. Awareness of anal lesions as a cause of acute scrotal conditions, and history and physical examination are emphasized

Increased prevalence of rotavirus among children associated gastroenteritis in Riyadh Saudi Arabia

The aim of this study is to assess the epidemiology along with the molecular structure of rotavirus causing pediatric diarrhea among Saudi patients. However, in this report we sited the epidemiological reflect coming from our project