Administering an eye anaesthetic: principles, techniques, and complications

The trigeminal nerve carries the sensory innervation of the eye and adnexa in three divisions: ophthalmic, maxillary, and mandibular. The sensory fibres of the eye and adnexa are found in the ophthalmic division – with the exception of a portion of the sensory input from the lower lid, which is carried by the maxillary division. Blocking the sensory fibres provides anaesthesia so that no pain is felt.The motor supply of the extraocular muscles and levator palpebrae superioris is carried by the oculomotor (III), trochlear (IV), and abducens (VI) nerves. Paralysing these muscles by blocking their motor supply provides akinesia so that the eye does not move during surgery.The motor supply of the orbicularis oculi, which is responsible for the gentle and forcible closure of the eye, is carried by the facial nerve (VII). Blocking these fibres will provide better surgical exposure. It also reduces the risk of forcing out the ocular contents if the patient tries to close his eyelids forcibly after the surgeon opens the globe

The Integration of Structural Knowledge in Studio Design Projects: An Assessment Curriculum in: Architecture Course in SUST

This study is concerned with the effective structures curriculum content in architectural department and the teaching methods that lead to a better integration of architectural concepts with structural solutions for architectural students’ design application. It aims at identifying a better course content and teaching method to improve the students’ design capability to integrate structure principles learned in lecture sessions and architectural design studio, where the principles are being applied. Respondents are B.Sc. (Arch) students from year 1 to year 5 of the academic year 2008/2009 in the Department of Architecture, College of Engineering, Sudan University of Science and Technology. Descriptive statistic and ANOVA test were employed to attain the stated objectives. The study examined the course content, instruction modes and method of teaching structures subject and investigated the learning outcome with design studio through students’ performance and perception in integrating structural knowledge in their design project. Semi-structured interviews were conducted with the design studio coordinators and structure lecturers. The results revealed that 77.8% of respondents faced difficulty in integrating structural knowledge into their design of the project in the studio. Although they found that structure subject interesting but the teaching methods used in its classes did not satisfy their learning needs. Furthermore, the subject content is full of mathematical jargons which relate more to engineers than architects

Robust Color Image Encryption Scheme Based on RSA via DCT by Using an Advanced Logic Design Approach

تتزايد أهمية أمن المعلومات في تخزين البيانات ونقلها. من جانب اخر يتم استخدام الصور في العديد من الإجراءات. لذلك ، يعد منع الوصول غير المصرح به إلى بيانات الصورة أمرًا بالغ الأهمية من خلال تشفير الصور لاجل حماية البيانات الحساسة او الخصوصية. تتنوع طرق وخوارزميات إخفاء الصور أو تشفيرها من طرق المجال المكاني البسيطة إلى طرق مجال التردد والذي يعتبر الأكثر تعقيدًا وموثوقية. في هذا البحث ، نقترح نظام تشفير جديد يعتمد على منهجية تهجين مولد المفتاح العشوائي من خلال الاستفادة من خصائص DCT لتوليد مجموعة غير محددة من المفاتيح العشوائية والاستفادة من معاملات المنطقة منخفضة التردد بعد مرحلة DCT لتمريرها إلى نظام فرعي يتكون من مجموعة RLG للحصول على المفاتيح السرية التي يتم تمريرها إلى RSA لتنتهي بتشفير الصورة. تشير النتائج إلى أن الطريقة المقترحة لها القدرة على تولد مجموعة كبيرة جدًا من المفاتيح السرية شديدة التعقيد والآمنة التي يمكن استخدامها لاحقًا في مرحلة التشفير. علاوة على ذلك ، سيتغير عدد وتعقيد تلك المفاتيح في كل مرة يتم فيها تغيير الصورة، وهذا يمثل مساهمة الطريقة المقترحة. ولم نلاحظ اي ضياع للوقت أثناء عمليات التشفير وفك التشفير لاستخدامنا RLG ، مما يدل على أن النظام المقترح قام بعمل جيد في صنع مفاتيح مختلفة من نفس الصورة. ويختلف في قوة المفتاح من صورة إلى أخرى حسب طبيعة الصورة الملونة.Information security in data storage and transmission is increasingly important. On the other hand, images are used in many procedures. Therefore, preventing unauthorized access to image data is crucial by encrypting images to protect sensitive data or privacy. The methods and algorithms for masking or encoding images vary from simple spatial-domain methods to frequency-domain methods, which are the most complex and reliable. In this paper, a new cryptographic system based on the random key generator hybridization methodology by taking advantage of the properties of Discrete Cosine Transform (DCT) to generate an indefinite set of random keys and taking advantage of the low-frequency region coefficients after the DCT stage to pass them to a subsystem consisting of an Reversible Logic Gate (RLG) group to obtain the secret keys that are passed to Rivest Shamir Adleman (RSA) to finish encrypting the image. The results indicate that the proposed method has the ability to generate a very large set of highly complex and secure secret keys that can be used later in the encryption stage. Moreover, the number and complexity of those keys will change each time the image is changed, and this represents the contribution of the proposed method. They experienced no time loss throughout the encryption and decryption processes when using RLG, which indicates that the proposed system did a good job in making different keys from the same image. And it differs in the strength of the key from one image to another, depending on the nature of the color imge

Wavelet diagnosis of ECG signals with kaiser based noise diminution

The evaluation of distortion diagnosis using Wavelet function for Electrocardiogram (ECG), Electroen- cephalogram (EEG) and Phonocardiography (PCG) is not novel. However, some of the technological and economic issues remain challenging. The work in this paper is focusing on the reduction of the noise inter- ferences and analyzes different kinds of ECG signals. Furthermore, a physiological monitoring system with a programming model for the filtration of ECG is presented. Kaiser based Finite Impulse Response (FIR) filter is used for noise reduction and identifica- tion of R peaks based on Peak Detection Algorithm (PDA). Two approaches are implemented for detect- ing the R peaks; Amplitude Threshold Value (ATV) and Peak Prediction Technique (PPT). Daubechies wavelet transform is applied to analyze the ECG of driver under stress, arrhythmia and sudden cardiac arrest signals. From the obtained results, it was found that the PPT is an effective and efficient technique in detecting the R peaks compared to ATV

Hybrid of Eddy Current Probe Based on Permanent Magnet and GMR Sensor

The eddy current testing (ECT) is used to inspect a material to determine its properties without destroying its utility. The applications include detection of flaws in aircrafts, pipeline, etc. An ECT is a weak sensitivity to a subsurface defect. Applications of giant magnetic sensors (GMR) are increasingly applied to the measurement of weak magnetic fields related to the currents they cause. In this paper, GMR sensor with magnet bar (permanent) is utilized. The proposed probe system is utilized to study the impact of the width and depth defect on the signal of eddy current testing. The maximum depth of flaw in a mild steel can be revealed by using this probe. The graph of the difference between the peak amplitude and the penetration depth of each slot of a different width of the two bands of mild steel shows the increase of the signal for each slot and flat above 3mm. The experimental result proves the inability of a PMGMR probe to detect a defect at a depth of 3mm on a surface defect

Acute renal failure in children under two years of age

Background: Acute renal failure (ARF) in children is a catastrophic, life -threatening event Aim of the study: the aim of the present study is to find out the etiology and outcome of patients with acute renal failure below two years of age admitted to the hospital. Patients and methods: A prospective study was carried out on children below 2 years of age (with exclusion of neonatal period) presented with acute renal shut down admitted to Children Welfare Teaching Hospital during the period from Jan. 1st, 2007tojan30th,2008. Results: the study group included 100 patients with acute renal failure, 69 males and 31 females with M/F ratio 2.2:1.Age range was between (2 months - 2 years). Prerenal ARF was the commonest type seen in 67(67%) patients and hypovolemia due to (gastrointestinal loss) was the prominent etiology it was found in 53(53%) cases. ARF due to renal and post-renal causes found in 21(21%) and 12(12%) cases respectively, six (6%) patients only presented with non-Oligouria. Forty four patients (44%) required peritoneal dialysis, while(56)patients improved on conservative management only and most of them (53 %) were the pre-renal group. Ninety two (92%) patients had either complete or partial recovery of their renal function, eight (8%) patients died from ARF. Conclusion: prerenal ARF particularly hypovolemia secondary to gastrointestinal loss was the most common causative group of ARF in our patients, with good prognosis for the recovery of renal function in most patients. To evaluate and validate markers of acute kidney injury more prospective clinical studies required

Hybrid of Eddy Current Probe based on Permanent Magnet and GMR Sensor

The eddy current testing (ECT) is used to inspect a material to determine its properties without destroying its utility. The applications include detection of flaws in aircrafts, pipeline, etc. An ECT is a weak sensitivity to a subsurface defect. Applications of giant magnetic sensors (GMR) are increasingly applied to the measurement of weak magnetic fields related to the currents they cause. In this paper, GMR sensor with magnet bar (permanent) is utilized. The proposed probe system is utilized to study the impact of the width and depth defect on the signal of eddy current testing. The maximum depth of flaw in a mild steel can be revealed by using this probe. The graph of the difference between the peak amplitude and the penetration depth of each slot of a different width of the two bands of mild steel shows the increase of the signal for each slot and flat above 3mm. The experimental result proves the inability of a PMGMR probe to detect a defect at a depth of 3mm on a surface defect

The Impact of the Components and Dimensions of Human Capital on Organizational Relations

Purpose: The aim of this paper was present components and dimensions of human capital terms impact on organizational relation.   Theoretical framework: Many studies have dealt with the impact of human resources on the performance of organizations. In this paper, work has been done to study the dimensions of human capital and the way it affects organizational relations.   Design/methodology/approach: The paper adopted the descriptive / exploratory approach, as an opinion questionnaire was designed specifically to find out the opinions of the scientific competencies of teachers and administrators at Al-Rafidain University College, where (100) opinion questionnaires were distributed.   Findings: The most important conclusions are the evidence of the impact of human capital (components and dimensions) on organizational relations, at Al-Rafidain University College.   Research, practical & Social implications: three dimensions used to human capital and for dimensions to organizational relation.   Originality/value:  the paper an contribution in field of the effects of human capital components on organizational relations in general and in the field of university education organizations, with the clarity of the impact of encouraging the Deanship of the College on the constituent aspects of human capital as well as aspects of dimension