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- 저자 : AL-Kalbani (검색결과 5 건)
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Al-Kalbani, Moza,Price, John,Thompson, Gwen,Ahmad, Sarfraz,Nagar, Hans Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.15
Background: Cervical human papillomavirus (HPV) infection among young women (20-25 years of age) is common and normally transient. There are growing concerns that referral to a colposcopy clinic may lead to unnecessary treatment with an increased risk of obstetric complications. Therefore, the purpose of this study was to determine the level of intervention for cervical abnormalities in this age group of the Northern Ireland population. Materials and Methods: A review of all serial new patients under 25 years of age, who were referred to colposcopy clinics in Northern Ireland between January 1, 2009 to June 30, 2009 formed the basis of this study. Results: During the study period, a total of 4,767 women under 25 years of age were screened. Two-hundred-and-thirty-four (4.9%) cases were referred to the colposcopy clinics. The cervical cytology results were: high-grade abnormality in 35%, and low-grade abnormality in 31% of these cases. One-hundred-and-seventy-eight (76%) of the referred women received at least one treatment. One-hundred-and-twenty-one of 234 (51.5%) women underwent an excisional treatment with histology showing the presence of high-grade abnormalities (CIN2-3) in 52%, CIN1 in 28%, and Koilocytosis or normal tissue in 20% of this sub-group of cases. Conclusions: Screening women under the age of 25 years cause unnecessary referral for colposcopy. This may also result in considerable anxiety and psychosexual morbidity. It leads to an over-treatment with a potential of negative impact on the future pregnancy outcomes (including pre-term delivery, low birth weight, and pre-term premature rupture of membranes).
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Towards a Comprehensive View of Web Services QoS Models
Jokha Al-Kalbani,Naoufel Kraiem,Zuhoor Al-Khanjari,Yassine Jamoussi 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.10
In a growing web services environment, the usage, design and composition methods of web services require proper and reliable information about web services quality. Quality- of- Service (QoS) is usually referred to the non-functional characteristics of web services which can be used as an important role to differentiate between different web services. In order to select the best web services among those with similar functionality, it is important for the web requester to have a mechanism to rank them and also from the service providers side to ensure that their web services are according to the agreed QoS. Currently there is no standard manner to define the QoS characteristics of web services. Many studies have shown different categorization of QoS which led to the issue of semantic interoperability of QoS. One way to understand the QoS, is to identify all its possible requirements for web services. This paper is an attempt to explore some of the QoS issues which are essential for web services. It first proposes a QoS framework which suggests considering QoS for web services along four different views. Each view is representing a particular relevant facet of QoS models. The main contribution of this paper is to show that there is a big quantity and variety of interpretations of various service quality concepts and models and gives the reasons why there is no holistic QoS modeling approach.
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Omar Al-Nabhani,Saud Al-Kalbani,Azzam Al-Alawi,Afzal Husain Techno-Press 2022 Advances in energy research Vol.8 No.3
The current study presents experimental research on a parabolic trough collector with tube and cavity receivers. The primary concentrating parabolic reflector is designed for an aperture area of 2×2 m<sup>2</sup> with mirror-polished stainless steel sheet reflectors. The cavity receiver consists of a compound parabolic secondary reflector and a copper tube. Both the conventional tube receiver and the cavity receiver tube are coated with black powder. The experiments are carried out to compare the efficiency of the cavity receiver with the tube receiver for fluid temperature rise, thermal efficiency, and overall losses. The experiments showed significantly higher fluid temperature rise and overall efficiency and lower thermal losses for the cavity receiver compared to the tube receiver within the parameters explored in this study.
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Gynecological Cancer Services in Arab Countries: Present Scenario, Problems and Suggested Solutions
Ortashi, Osman,Al Kalbani, Moza Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.3
Gynecological malignancies account for 9% of all female cancers worldwide. In the Arab countries Breast cancer is the leading cancer in women followed by cervical cancer. Ovarian cancer ranks as fourth leading cancer in women. There are huge differences in the available resources among Arab countries. However the challenges facing the provision of gynecological cancers services shared similarities like the cultural and religious background. Most of the gynecological cancers are diagnosed at a later stage in Arab countries due to the lack of reproductive health awareness especially among older women combined with the cultural stigma of seeking medical advice for gynecological symptoms. This article discusses the current situation of gynecological cancer services in Arab countries and suggests some practical solutions.
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Yuce and Jean-Michel Redouté,Ahmed I. AL-Kalbani,Mehmet R. Yuce 대한의용생체공학회 2013 Biomedical Engineering Letters (BMEL) Vol.3 No.1
Purpose This paper explores the bio-telemetry, powering and electromagnetic exposure design concerns in implanted neural systems. Methods A class-E transmitter transfers PWM-ASK (Pulse-Width Modulated Amplitude-Shift Keying) modulated data signals to the brain implants at an optimal speed, while efficiently delivering sufficient power so as to keep the exposure of tissue to electromagnetic fields within tolerable limits. Results A case study design illustrates that using a PWMASK modulated class-E transmitter, switching at a 5 MHz carrier frequency and requiring a voltage supply of 5 V, the maximal achievable data rate is equal to 168 kbps. Furthermore,two possible transmitter coil designs are proposed: simulations show that the minimal specific absorption rate (SAR) value when comparing these coils to power brain implants is equal to 1.72 W/kg for a transmitted power of 1 W per coil. Conclusions This paper illustrates how the fundamental limits on the achievable PWM-ASK data transmission rate,as well as achievable bit error rate (BER) versus signal to noise ratio (SNR), can be improved using a Class-E transmitter design. Additionally, it has been shown which coil setups can be used so as deliver sufficient power to implants while keeping the exposure of tissue to electromagnetic fields at a minimum.
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