The study, throughout the usage of Emirati youth for the social networking sites and satisfactions achieved, illustrated that the nature of those networks is considered a rapidly developing method of communication, wh...The study, throughout the usage of Emirati youth for the social networking sites and satisfactions achieved, illustrated that the nature of those networks is considered a rapidly developing method of communication, which is accompanied by attempts to impose a number of short abbreviated vocabulary to be used among the youth. Since social networking sites represent one of the most significant tremendous development aspects of information technology, which reached its peak during the last decade, the researcher considered the importance of conducting this study in order to know the impact of social networking sites on the youth through Intemet, blogs and chat rooms, as well as attempting to confront them and making them aware of their importance in their daily lives. Accordingly, the study has focused on a random category of youth, whose ages are ranging between 17-21 years old of university students, as being the highest category of usage. Results revealed the following： A high percentage of Emirati youth 77.5% mentioned that they ＂always＂ use those sites; the percentage of males, who ＂always＂ use social media reached 38.5% while the percentage of females reached 61, since the meaningful value reached 0.05〉0.044, which indicated that WhatsApp, YouTube, Twitter and Facebook are the most commonly used social media by the study individuals. Most of the study individuals use the social networking sites daily 84%, and there are statistically significant differences between males and females in terms of the times of using social media. A high percentage of the Emirati youth uses Internet for more than three hours daily; especially in the evenings, and there are not statistically significant differences between males and females in terms of the most common periods in which social media are used, and the most common age groups of using social media from one year and more range between 17-20. ＂Home＂ is the most favorite place of using social media （85.40% mentioned that）. Most of the study individuals can make a balance between spending time on Internet and spending time with people outside the world of Internet. The percentage of those, who mentioned that social networking sites affected them positively, was higher than the percentage of the ones, who mentioned that the social media affected them negatively. Among the most prominent usages of social media by the Emirati youth are： staying informed about news and current events, while most of them focused on chatting, followed by sharing photos and images. Most of the sample of study mentioned that the youth are just readers, who comment on what is shared and posted on the social media. The most prominent motives of the Emirati youth for using social media are represented in obtaining information, and communicating with others, which came on top of the motives relevant to the usage of social media, followed by entertainment, education, followed by various motives, including routine etc. Some of the most significant satisfactions achieved through using the social networking sites by the Emirati youth are entertainment and spending leisure time with others.展开更多
Background: Chronic Spontaneous urticarial (CSU) is a common dermatological problem characterized by recurrent pruritic or burning wheals last less than 24 hours and treated by many modalities of therapy including sys...Background: Chronic Spontaneous urticarial (CSU) is a common dermatological problem characterized by recurrent pruritic or burning wheals last less than 24 hours and treated by many modalities of therapy including systemic antihistamines and in refractory cases with Omalizumab anti-IgE antibody biological injection. Latent tuberculosis infection (LTBI) is diagnosed based on a positive tuberculin skin test or QuantiFERON-TB test without evidence of active tuberculosis. Aim: To document a new case report of a patient with a history of CSU and latent tuberculosis on Omalizumab therapy during Isoniazid (INH) prophylaxis. Case Report: A-53-year-old woman with a history of CSU and newly identified LTBI who have been treated with INH monotherapy before starting Omalizumab injection followed up over 24 weeks course of therapy for any sign of tuberculosis reinfection. Conclusion: Omalizumab injection was used effectively for the treatment of CSU in a patient with latent tuberculosis infection with minimal risk of tuberculosis reactivation.展开更多
Background: Coronavirus disease (Covid-19) becomes a pandemic worldwide in 2020. Different dermatological manifestations associated with Covid-19 infection like maculopapular, morbilliform, urticarial, vesicular, chil...Background: Coronavirus disease (Covid-19) becomes a pandemic worldwide in 2020. Different dermatological manifestations associated with Covid-19 infection like maculopapular, morbilliform, urticarial, vesicular, chilblain-like, petechiae, purpura, and livedoid rashes. Pityriasis rosea (PR) and PR-like eruptions were recently reported to increase in coronavirus cases. Aim: To evaluate and review the literature on PR and PR-like eruption associated with Covid-19 disease. Case Report: A 24-year-old female patient presented with a history of asymptomatic PR-like eruption that started during infection with the Covid-19 virus and resolved spontaneously over 14 weeks without therapy. Conclusion: PR and PR-like eruptions are not uncommon with Covid-19 disease and could be the early manifestation of SARS-CoV-2 virus infection.展开更多
Interstitial cells of Cajal (ICC) are important players in the symphony of gut motility. They have a very signif icant physiological role orchestrating the normal peristaltic activity of the digestive system. They are...Interstitial cells of Cajal (ICC) are important players in the symphony of gut motility. They have a very signif icant physiological role orchestrating the normal peristaltic activity of the digestive system. They are the pacemaker cells in gastrointestinal (GI) muscles. Absence, reduction in number or altered integrity of the ICC network may have a dramatic effect on GI system motility. More understanding of ICC physiology will foster advances in physiology of gut motility which will help in a future breakthrough in the pharmacological interventions to restore normal motor function of GI tract. This mini review describes what is known about the physiologic function and role of ICCs in GI system motility and in a variety of GI system motility disorders.展开更多
Functional gastrointestinal disorders （FGIDs） represent a common and important class of disorders within gastroenterology. Rome Ⅰ, the first edition was published in 1994, with symptom-based diagnostic criteria for...Functional gastrointestinal disorders （FGIDs） represent a common and important class of disorders within gastroenterology. Rome Ⅰ, the first edition was published in 1994, with symptom-based diagnostic criteria for FGIDs. These criteria began to change the diagnostic approach to F-GIDs, and no longer considered ＂diagnoses of exclusion＂ but rather ＂diagnoses of inclusion＂. Rome Ⅱ, the second edition published in 2000, resulted from the continual process of analyzing new scientific and clinical evidence in the study of F-GIDs. Rome Ⅱ, diagnostic criteria for irritable bowel syndrome （IBS）, was extended with a focus on the frequency of symptoms occurring twelve weeks （not necessarily consecutive weeks） within twelve months. ROlE Ⅲ, the third edition, conservative one, was published in September 2006, with changes made only where there is good evidence to do so. Some of the differences between Rome Ⅱ and Rome Ⅲ criteria are highlighted in this issue.展开更多
Ankylosing spondylitis(AS) is a chronic inflammatory disease that affects 1% of the general population. As one of the most severe types of spondyloarthropathy, AS affects the spinal vertebrae and sacroiliac joints, ca...Ankylosing spondylitis(AS) is a chronic inflammatory disease that affects 1% of the general population. As one of the most severe types of spondyloarthropathy, AS affects the spinal vertebrae and sacroiliac joints, causing debilitating pain and loss of mobility. The goal of this review is to provide an overview of AS, from the pathophysiological changes that occur as the disease progresses, to genetic factors that are involved with its onset. Considering the high prevalence in the population, and the debilitating life changes that occur as a result of the disease, a strong emphasis is placed on the diagnostic imaging methods that are used to detect this condition, as well as several treatment methods that could improve the health of individuals diagnosed with AS.展开更多
Carpal tunnel syndrome(CTS) is the most commonly diagnosed disabling condition of the upper extremities. It is the most commonly known and prevalent type of peripheral entrapment neuropathy that accounts for about 90%...Carpal tunnel syndrome(CTS) is the most commonly diagnosed disabling condition of the upper extremities. It is the most commonly known and prevalent type of peripheral entrapment neuropathy that accounts for about 90% of all entrapment neuropathies. This review aims to provide an outline of CTS by considering anat-omy, pathophysiology, clinical manifestation, diagnostic modalities and management of this common condition, with an emphasis on the diagnostic imaging evaluation.展开更多
The exact cause of rectal prolapse is not well addressed,but it is often associated with long standing constipation,advanced age,chronic obstructive pulmonary disease and some neurological disorders.Rectal prolapse is...The exact cause of rectal prolapse is not well addressed,but it is often associated with long standing constipation,advanced age,chronic obstructive pulmonary disease and some neurological disorders.Rectal prolapse is usually only a symptom,which needs a focus on discovery of the underlying pathology or disorder.Three different clinical presentations are often combined and called rectal prolapse.Rectal prolapse can be divided into full thickness rectal prolapse where the entire rectum protrudes beyond the anus,mucosal prolapse where only the rectal mucosa (not the entire wall) prolapses,and internal intussuception wherein the rectum collapses but does not exit the anus.Although constipation and straining may contribute to the development of rectal prolapse,simply correcting these problems may not improve the prolapse once it has developed.There are many different approaches to surgical correction of rectal prolapse.展开更多
The subject of this research concentrate on indicating psychological and social effects for the Internet on students in Sharjah University/Communication College/in other words the researcher try to know students opini...The subject of this research concentrate on indicating psychological and social effects for the Internet on students in Sharjah University/Communication College/in other words the researcher try to know students opinion and impressions regarding the use of Internet and effect of the same, as well as opinion of positive and negative benefits regarding Internet, especially for the university＇s students who use Internet repeatedly in their daily routine. This stage marked by facts and characteristics based on search for information, explore the students world, and their expectations for that science. This study is the first in its kind in United Arab Emirates that try to shed light on the social and psychological effects of the lnternet, therefore we pave the way in front of those who administer lnternet and indicate to them guidelines for that to allow decisions maker to be aware about the world around university＇s student, the world that enjoy less interest for use of Internet at university, and what is the social and psychological effects of the use of Internet. And the study allow providing information and data that several sectors in society need. It draws clear image for the use of Internet at university by the student and whatever social and psychological effects that happened as a result of that use, so it consider as a survey for whom desire to know such information in United Arab Emirates.展开更多
The paper investigates the contributions of TV Social Programs in UAE channels in promoting the social changes among youths in UAE, and to what extent it effects their attitudes towards the society and its values and ...The paper investigates the contributions of TV Social Programs in UAE channels in promoting the social changes among youths in UAE, and to what extent it effects their attitudes towards the society and its values and traditions. The study used the expecting value model and the third person effect concept in analyzing the perceptions of the UAE＇s youths towards the practices of local channels. The sample of the study was 200 male and female from several emirates. The study concluded that 88% of the audience in UAE watch the UAE satellite channels. Dubai channel comes in the top most watched channels, followed by Sharjah Channel, then Abu Dhabi channel. Most of the audience watch these channels in their homes. 78% of the audience watch the TV social programs. The most watched program is Khatwa program in Abd Dhabi channels, followed by shabnaa program. The reasons for watching the social programs are： finding relieve from their problems （66%）, the diversity of these programs （64%）, and the popularity of social programs＇ anchors （5%）. The most discussed issues are Youths problems and unemployment （91%）, local problems （73%）, divorce issues （31%）. They said that these programs encourages for persevering the local heritage （62%）, respect the family values （51%）, and social traditions （48%）. While the most positive features of the social programs are： promote the local anchors （90%）, the most negative features are promoting the western values （94%）, and discussing some issues which are not fit with the local traditions （88%）. In general the study found that the local TV channels played an important role in social changes in UAE.展开更多
Recently, there has been much focus on mobile sensor networks, and we have even seen the development of small-profile sensing devices that are able to control their own movement. Although it has been shown that mobili...Recently, there has been much focus on mobile sensor networks, and we have even seen the development of small-profile sensing devices that are able to control their own movement. Although it has been shown that mobility alleviates several issues relating to sensor network coverage and connectivity, many challenges remain. Among these, the need for position estimation is perhaps the most important. It is too expensive to include a GPS receiver with every sensor node. Hence, localization schemes for sensor networks typically use a small number of seed nodes that know their location and protocols whereby other sensor nodes estimate their location from the messages they receive. In this paper, we propose a new technique to localize mobile sensor nodes using sectorized antenna. We consider that both sensor nodes and seeds are mobile, and argue that mobility can be exploited to improve the accuracy and precision of localization. It is tested extensively in a simulation environment and compared with other existing methods. The results of our experiments clearly indicate that our proposed approach can achieve a high accuracy without need of high density of seeds.展开更多
<b><span style="font-family:Verdana;">Background: </span></b><span style="font-family:""><span style="font-family:Verdana;">Terra Firma-Forme Derm...<b><span style="font-family:Verdana;">Background: </span></b><span style="font-family:""><span style="font-family:Verdana;">Terra Firma-Forme Dermatosis (TFFD), a benign skin condition which presents with asymptomatic brown to black plaques which resemble dirty skin. </span><b><span style="font-family:Verdana;">Aim:</span></b><span style="font-family:Verdana;"> To document a new case presentation with TFFD in the Arab region which is considered as one of the differential diagnos</span></span><span style="font-family:Verdana;">e</span><span style="font-family:""><span style="font-family:Verdana;">s of dirty neck. </span><b><span style="font-family:Verdana;">Case presentation: </span></b><span style="font-family:Verdana;">A 15-year-old girl presented with a history of asymptomatic brownish dirt-like lesion on the nape and sides of the neck for 4-years duration, not resolved by wash with water and soap and confused with other dermatos</span></span><span style="font-family:Verdana;">e</span><span style="font-family:Verdana;">s like acanthosis nigricans or atopic dermatitis. The diagnosis of TFFD was confirmed when the lesions </span><span style="font-family:Verdana;">were </span><span style="font-family:""><span style="font-family:Verdana;">completely resolved after gentle swabbing with 70% isopropyl alcohol. </span><b><span style="font-family:Verdana;">Conclusion:</span></b><span style="font-family:Verdana;"> TFFD is rarely reported in Arab region and should be considered when evaluating cases of dirty neck-like presentation of atopic dermatitis or acanthosis nigricans.展开更多
<strong>Background:</strong> Psoriasis, a chronic, systemic, inflammatory disease with prominent skin involvement, affects approximately 2% - 4% of the world population. Common variants of psoriasis are pl...<strong>Background:</strong> Psoriasis, a chronic, systemic, inflammatory disease with prominent skin involvement, affects approximately 2% - 4% of the world population. Common variants of psoriasis are plaque psoriasis, inverse psoriasis, guttate psoriasis, erythrodermic psoriasis, pustular form either palmoplantar pustular psoriasis or generalized pustular psoriasis, nail psoriasis, and psoriatic arthritis. Progressive Symmetrical Erythrokeratoderma (PSEK) is a rare genetic disorder, characterized by fixed, well-defined erythematous and hyperkeratotic plaques distributed predominantly on the elbows, knees, trunk, and dorsal surfaces of hands and feet. Clinically has the same presentation to psoriasis especially at early onset and could be confused with psoriasis but histopathological findings and progression of the psoriatic disease can differentiate between both conditions. <strong>Aim:</strong> To document a new variant of a severe, recalcitrant type of psoriasis with a history of recurrent attacks of exacerbations and partial remissions especially in lesions involving lower extremities that are clinically PSEK-like in presentation, but histopathologically consistent with psoriasis. <strong>Case report:</strong> A 12-year-old childhood male, known case of Down’s syndrome, presented to our clinic with a history of severely pruritic skin rashes involving the perioral area, corners of the mouth, bilateral elbows, dorsal hands, scrotum, and both lower extremities for 6 years duration. The rashes gradually progressed with time to form fixed lesions in the last 2 years. He was received multiple treatment modalities, including topical steroids, topical vitamin D derivatives, and narrowband UVB phototherapy without significant improvement and the lesions became more worsened over time. <strong>Conclusion:</strong> psoriasis can be presenting with a new variant of a severe, recalcitrant, and difficult to treat type in Down syndrome cases with a history of recurrent attacks of exacerbations and partial remissions especially in lesions involving lower extremities which are clinically PSEK-like in presentation, but histopathologically consistent with psoriasis. However, early diagnosis and strict management are important in controlling the severity of the condition.展开更多
Background: Ustekinumab is a human monoclonal antibody that binds to the shared P40 subunit of interleukin (IL)-12 and IL-23 and is approved for the treatment of moderate-to-severe psoriasis. Latent tuberculosis (LTBI...Background: Ustekinumab is a human monoclonal antibody that binds to the shared P40 subunit of interleukin (IL)-12 and IL-23 and is approved for the treatment of moderate-to-severe psoriasis. Latent tuberculosis (LTBI) was diagnosed based on a positive tuberculin skin test (TST) or QuantiFERON-TB test without evidence of active tuberculosis (TB). Aim: To evaluate the risk of active tuberculosis reinfection in patients with a history of psoriasis and LTBI after INH prophylaxis treated with Ustekinumab. Case Report: We are describing 3 patients with a history of moderate-to-severe plaque psoriasis and newly identified LTBI who have been treated with INH monotherapy before starting Ustekinumab therapy followed-up over 2 years for any sign of tuberculosis reinfection. Conclusion: Ustekinumab is an option for treating psoriasis and LTBI with minimal risk of reactivation after INH prophylaxis.展开更多
Objective:To determine the morphological and molecular characterization of Acanthamoeba isolates from contact lens paraphernalia in Malaysia and to investigate their pathogenic potential based on the physiological tol...Objective:To determine the morphological and molecular characterization of Acanthamoeba isolates from contact lens paraphernalia in Malaysia and to investigate their pathogenic potential based on the physiological tolerance.Methods:One hundred and eighty contact lens wearers donated their contact lens,lens storage cases and lens solutions between2018 and 2019.The samples were inoculated onto 1.5%nonnutrient agar plates for 14 d.Polymerase chain reaction(PCR)was performed and the amplified PCR products were sequenced and compared with the published sequences in GenBank.The pathogenic potential of positive isolates was further tested using temperature-tolerance and osmo-tolerance assays.Acanthamoeba species were categorized into three distinct morphological groups established by Pussard and Pons.Results:Acanthamoeba was successfully isolated from 14(7.8%)culture-positive samples in which 11 belong to morphological groupⅡand 3 belong to morphological groupⅢ,respectively.The sequencing of 18 S ribosomal RNA gene led to the identification of the T4 genotype in all the isolated strains.In vitro assays revealed that 9(64.3%)Acanthamoeba isolates were able to grow at 42℃and 1 M mannitol and were thus considered to be highly pathogenic.Conclusions:To the best of our knowledge,this is the first report identifying the Acanthamoeba genotype and their pathogenic potential among contact lens wearers in Malaysia.The potentially pathogenic T4 genotype isolated in this study is the most predominant genotype responsible for human ocular infection worldwide.Hence,increasing attention should be aimed at the prevention of contamination by Acanthamoeba and the disinfection of contact lens paraphernalia.展开更多
文摘The study, throughout the usage of Emirati youth for the social networking sites and satisfactions achieved, illustrated that the nature of those networks is considered a rapidly developing method of communication, which is accompanied by attempts to impose a number of short abbreviated vocabulary to be used among the youth. Since social networking sites represent one of the most significant tremendous development aspects of information technology, which reached its peak during the last decade, the researcher considered the importance of conducting this study in order to know the impact of social networking sites on the youth through Intemet, blogs and chat rooms, as well as attempting to confront them and making them aware of their importance in their daily lives. Accordingly, the study has focused on a random category of youth, whose ages are ranging between 17-21 years old of university students, as being the highest category of usage. Results revealed the following： A high percentage of Emirati youth 77.5% mentioned that they ＂always＂ use those sites; the percentage of males, who ＂always＂ use social media reached 38.5% while the percentage of females reached 61, since the meaningful value reached 0.05〉0.044, which indicated that WhatsApp, YouTube, Twitter and Facebook are the most commonly used social media by the study individuals. Most of the study individuals use the social networking sites daily 84%, and there are statistically significant differences between males and females in terms of the times of using social media. A high percentage of the Emirati youth uses Internet for more than three hours daily; especially in the evenings, and there are not statistically significant differences between males and females in terms of the most common periods in which social media are used, and the most common age groups of using social media from one year and more range between 17-20. ＂Home＂ is the most favorite place of using social media （85.40% mentioned that）. Most of the study individuals can make a balance between spending time on Internet and spending time with people outside the world of Internet. The percentage of those, who mentioned that social networking sites affected them positively, was higher than the percentage of the ones, who mentioned that the social media affected them negatively. Among the most prominent usages of social media by the Emirati youth are： staying informed about news and current events, while most of them focused on chatting, followed by sharing photos and images. Most of the sample of study mentioned that the youth are just readers, who comment on what is shared and posted on the social media. The most prominent motives of the Emirati youth for using social media are represented in obtaining information, and communicating with others, which came on top of the motives relevant to the usage of social media, followed by entertainment, education, followed by various motives, including routine etc. Some of the most significant satisfactions achieved through using the social networking sites by the Emirati youth are entertainment and spending leisure time with others.
文摘Background: Chronic Spontaneous urticarial (CSU) is a common dermatological problem characterized by recurrent pruritic or burning wheals last less than 24 hours and treated by many modalities of therapy including systemic antihistamines and in refractory cases with Omalizumab anti-IgE antibody biological injection. Latent tuberculosis infection (LTBI) is diagnosed based on a positive tuberculin skin test or QuantiFERON-TB test without evidence of active tuberculosis. Aim: To document a new case report of a patient with a history of CSU and latent tuberculosis on Omalizumab therapy during Isoniazid (INH) prophylaxis. Case Report: A-53-year-old woman with a history of CSU and newly identified LTBI who have been treated with INH monotherapy before starting Omalizumab injection followed up over 24 weeks course of therapy for any sign of tuberculosis reinfection. Conclusion: Omalizumab injection was used effectively for the treatment of CSU in a patient with latent tuberculosis infection with minimal risk of tuberculosis reactivation.
文摘Background: Coronavirus disease (Covid-19) becomes a pandemic worldwide in 2020. Different dermatological manifestations associated with Covid-19 infection like maculopapular, morbilliform, urticarial, vesicular, chilblain-like, petechiae, purpura, and livedoid rashes. Pityriasis rosea (PR) and PR-like eruptions were recently reported to increase in coronavirus cases. Aim: To evaluate and review the literature on PR and PR-like eruption associated with Covid-19 disease. Case Report: A 24-year-old female patient presented with a history of asymptomatic PR-like eruption that started during infection with the Covid-19 virus and resolved spontaneously over 14 weeks without therapy. Conclusion: PR and PR-like eruptions are not uncommon with Covid-19 disease and could be the early manifestation of SARS-CoV-2 virus infection.
文摘Interstitial cells of Cajal (ICC) are important players in the symphony of gut motility. They have a very signif icant physiological role orchestrating the normal peristaltic activity of the digestive system. They are the pacemaker cells in gastrointestinal (GI) muscles. Absence, reduction in number or altered integrity of the ICC network may have a dramatic effect on GI system motility. More understanding of ICC physiology will foster advances in physiology of gut motility which will help in a future breakthrough in the pharmacological interventions to restore normal motor function of GI tract. This mini review describes what is known about the physiologic function and role of ICCs in GI system motility and in a variety of GI system motility disorders.
文摘Functional gastrointestinal disorders （FGIDs） represent a common and important class of disorders within gastroenterology. Rome Ⅰ, the first edition was published in 1994, with symptom-based diagnostic criteria for FGIDs. These criteria began to change the diagnostic approach to F-GIDs, and no longer considered ＂diagnoses of exclusion＂ but rather ＂diagnoses of inclusion＂. Rome Ⅱ, the second edition published in 2000, resulted from the continual process of analyzing new scientific and clinical evidence in the study of F-GIDs. Rome Ⅱ, diagnostic criteria for irritable bowel syndrome （IBS）, was extended with a focus on the frequency of symptoms occurring twelve weeks （not necessarily consecutive weeks） within twelve months. ROlE Ⅲ, the third edition, conservative one, was published in September 2006, with changes made only where there is good evidence to do so. Some of the differences between Rome Ⅱ and Rome Ⅲ criteria are highlighted in this issue.
文摘Ankylosing spondylitis(AS) is a chronic inflammatory disease that affects 1% of the general population. As one of the most severe types of spondyloarthropathy, AS affects the spinal vertebrae and sacroiliac joints, causing debilitating pain and loss of mobility. The goal of this review is to provide an overview of AS, from the pathophysiological changes that occur as the disease progresses, to genetic factors that are involved with its onset. Considering the high prevalence in the population, and the debilitating life changes that occur as a result of the disease, a strong emphasis is placed on the diagnostic imaging methods that are used to detect this condition, as well as several treatment methods that could improve the health of individuals diagnosed with AS.
文摘Carpal tunnel syndrome(CTS) is the most commonly diagnosed disabling condition of the upper extremities. It is the most commonly known and prevalent type of peripheral entrapment neuropathy that accounts for about 90% of all entrapment neuropathies. This review aims to provide an outline of CTS by considering anat-omy, pathophysiology, clinical manifestation, diagnostic modalities and management of this common condition, with an emphasis on the diagnostic imaging evaluation.
文摘The exact cause of rectal prolapse is not well addressed,but it is often associated with long standing constipation,advanced age,chronic obstructive pulmonary disease and some neurological disorders.Rectal prolapse is usually only a symptom,which needs a focus on discovery of the underlying pathology or disorder.Three different clinical presentations are often combined and called rectal prolapse.Rectal prolapse can be divided into full thickness rectal prolapse where the entire rectum protrudes beyond the anus,mucosal prolapse where only the rectal mucosa (not the entire wall) prolapses,and internal intussuception wherein the rectum collapses but does not exit the anus.Although constipation and straining may contribute to the development of rectal prolapse,simply correcting these problems may not improve the prolapse once it has developed.There are many different approaches to surgical correction of rectal prolapse.
文摘The subject of this research concentrate on indicating psychological and social effects for the Internet on students in Sharjah University/Communication College/in other words the researcher try to know students opinion and impressions regarding the use of Internet and effect of the same, as well as opinion of positive and negative benefits regarding Internet, especially for the university＇s students who use Internet repeatedly in their daily routine. This stage marked by facts and characteristics based on search for information, explore the students world, and their expectations for that science. This study is the first in its kind in United Arab Emirates that try to shed light on the social and psychological effects of the lnternet, therefore we pave the way in front of those who administer lnternet and indicate to them guidelines for that to allow decisions maker to be aware about the world around university＇s student, the world that enjoy less interest for use of Internet at university, and what is the social and psychological effects of the use of Internet. And the study allow providing information and data that several sectors in society need. It draws clear image for the use of Internet at university by the student and whatever social and psychological effects that happened as a result of that use, so it consider as a survey for whom desire to know such information in United Arab Emirates.
文摘The paper investigates the contributions of TV Social Programs in UAE channels in promoting the social changes among youths in UAE, and to what extent it effects their attitudes towards the society and its values and traditions. The study used the expecting value model and the third person effect concept in analyzing the perceptions of the UAE＇s youths towards the practices of local channels. The sample of the study was 200 male and female from several emirates. The study concluded that 88% of the audience in UAE watch the UAE satellite channels. Dubai channel comes in the top most watched channels, followed by Sharjah Channel, then Abu Dhabi channel. Most of the audience watch these channels in their homes. 78% of the audience watch the TV social programs. The most watched program is Khatwa program in Abd Dhabi channels, followed by shabnaa program. The reasons for watching the social programs are： finding relieve from their problems （66%）, the diversity of these programs （64%）, and the popularity of social programs＇ anchors （5%）. The most discussed issues are Youths problems and unemployment （91%）, local problems （73%）, divorce issues （31%）. They said that these programs encourages for persevering the local heritage （62%）, respect the family values （51%）, and social traditions （48%）. While the most positive features of the social programs are： promote the local anchors （90%）, the most negative features are promoting the western values （94%）, and discussing some issues which are not fit with the local traditions （88%）. In general the study found that the local TV channels played an important role in social changes in UAE.
文摘Recently, there has been much focus on mobile sensor networks, and we have even seen the development of small-profile sensing devices that are able to control their own movement. Although it has been shown that mobility alleviates several issues relating to sensor network coverage and connectivity, many challenges remain. Among these, the need for position estimation is perhaps the most important. It is too expensive to include a GPS receiver with every sensor node. Hence, localization schemes for sensor networks typically use a small number of seed nodes that know their location and protocols whereby other sensor nodes estimate their location from the messages they receive. In this paper, we propose a new technique to localize mobile sensor nodes using sectorized antenna. We consider that both sensor nodes and seeds are mobile, and argue that mobility can be exploited to improve the accuracy and precision of localization. It is tested extensively in a simulation environment and compared with other existing methods. The results of our experiments clearly indicate that our proposed approach can achieve a high accuracy without need of high density of seeds.
文摘<b><span style="font-family:Verdana;">Background: </span></b><span style="font-family:""><span style="font-family:Verdana;">Terra Firma-Forme Dermatosis (TFFD), a benign skin condition which presents with asymptomatic brown to black plaques which resemble dirty skin. </span><b><span style="font-family:Verdana;">Aim:</span></b><span style="font-family:Verdana;"> To document a new case presentation with TFFD in the Arab region which is considered as one of the differential diagnos</span></span><span style="font-family:Verdana;">e</span><span style="font-family:""><span style="font-family:Verdana;">s of dirty neck. </span><b><span style="font-family:Verdana;">Case presentation: </span></b><span style="font-family:Verdana;">A 15-year-old girl presented with a history of asymptomatic brownish dirt-like lesion on the nape and sides of the neck for 4-years duration, not resolved by wash with water and soap and confused with other dermatos</span></span><span style="font-family:Verdana;">e</span><span style="font-family:Verdana;">s like acanthosis nigricans or atopic dermatitis. The diagnosis of TFFD was confirmed when the lesions </span><span style="font-family:Verdana;">were </span><span style="font-family:""><span style="font-family:Verdana;">completely resolved after gentle swabbing with 70% isopropyl alcohol. </span><b><span style="font-family:Verdana;">Conclusion:</span></b><span style="font-family:Verdana;"> TFFD is rarely reported in Arab region and should be considered when evaluating cases of dirty neck-like presentation of atopic dermatitis or acanthosis nigricans.
文摘<strong>Background:</strong> Psoriasis, a chronic, systemic, inflammatory disease with prominent skin involvement, affects approximately 2% - 4% of the world population. Common variants of psoriasis are plaque psoriasis, inverse psoriasis, guttate psoriasis, erythrodermic psoriasis, pustular form either palmoplantar pustular psoriasis or generalized pustular psoriasis, nail psoriasis, and psoriatic arthritis. Progressive Symmetrical Erythrokeratoderma (PSEK) is a rare genetic disorder, characterized by fixed, well-defined erythematous and hyperkeratotic plaques distributed predominantly on the elbows, knees, trunk, and dorsal surfaces of hands and feet. Clinically has the same presentation to psoriasis especially at early onset and could be confused with psoriasis but histopathological findings and progression of the psoriatic disease can differentiate between both conditions. <strong>Aim:</strong> To document a new variant of a severe, recalcitrant type of psoriasis with a history of recurrent attacks of exacerbations and partial remissions especially in lesions involving lower extremities that are clinically PSEK-like in presentation, but histopathologically consistent with psoriasis. <strong>Case report:</strong> A 12-year-old childhood male, known case of Down’s syndrome, presented to our clinic with a history of severely pruritic skin rashes involving the perioral area, corners of the mouth, bilateral elbows, dorsal hands, scrotum, and both lower extremities for 6 years duration. The rashes gradually progressed with time to form fixed lesions in the last 2 years. He was received multiple treatment modalities, including topical steroids, topical vitamin D derivatives, and narrowband UVB phototherapy without significant improvement and the lesions became more worsened over time. <strong>Conclusion:</strong> psoriasis can be presenting with a new variant of a severe, recalcitrant, and difficult to treat type in Down syndrome cases with a history of recurrent attacks of exacerbations and partial remissions especially in lesions involving lower extremities which are clinically PSEK-like in presentation, but histopathologically consistent with psoriasis. However, early diagnosis and strict management are important in controlling the severity of the condition.
文摘Background: Ustekinumab is a human monoclonal antibody that binds to the shared P40 subunit of interleukin (IL)-12 and IL-23 and is approved for the treatment of moderate-to-severe psoriasis. Latent tuberculosis (LTBI) was diagnosed based on a positive tuberculin skin test (TST) or QuantiFERON-TB test without evidence of active tuberculosis (TB). Aim: To evaluate the risk of active tuberculosis reinfection in patients with a history of psoriasis and LTBI after INH prophylaxis treated with Ustekinumab. Case Report: We are describing 3 patients with a history of moderate-to-severe plaque psoriasis and newly identified LTBI who have been treated with INH monotherapy before starting Ustekinumab therapy followed-up over 2 years for any sign of tuberculosis reinfection. Conclusion: Ustekinumab is an option for treating psoriasis and LTBI with minimal risk of reactivation after INH prophylaxis.
基金supported by the Integrative Pharmacogenomics Institute(241910/2017/TSA/13)Geran Inisiatif Penyeliaan 600-IRMI 5/3/GIP(024/2019)Universiti Teknologi MARA,Malaysia
文摘Objective:To determine the morphological and molecular characterization of Acanthamoeba isolates from contact lens paraphernalia in Malaysia and to investigate their pathogenic potential based on the physiological tolerance.Methods:One hundred and eighty contact lens wearers donated their contact lens,lens storage cases and lens solutions between2018 and 2019.The samples were inoculated onto 1.5%nonnutrient agar plates for 14 d.Polymerase chain reaction(PCR)was performed and the amplified PCR products were sequenced and compared with the published sequences in GenBank.The pathogenic potential of positive isolates was further tested using temperature-tolerance and osmo-tolerance assays.Acanthamoeba species were categorized into three distinct morphological groups established by Pussard and Pons.Results:Acanthamoeba was successfully isolated from 14(7.8%)culture-positive samples in which 11 belong to morphological groupⅡand 3 belong to morphological groupⅢ,respectively.The sequencing of 18 S ribosomal RNA gene led to the identification of the T4 genotype in all the isolated strains.In vitro assays revealed that 9(64.3%)Acanthamoeba isolates were able to grow at 42℃and 1 M mannitol and were thus considered to be highly pathogenic.Conclusions:To the best of our knowledge,this is the first report identifying the Acanthamoeba genotype and their pathogenic potential among contact lens wearers in Malaysia.The potentially pathogenic T4 genotype isolated in this study is the most predominant genotype responsible for human ocular infection worldwide.Hence,increasing attention should be aimed at the prevention of contamination by Acanthamoeba and the disinfection of contact lens paraphernalia.
