Obstacles Facing Science Teachers regarding Distance Learning during the COVID-19 Pandemic in Saudi Arabia

Alessa, Matar Ahmed International Journal of Computer ScienceNetwork S 2022 International journal of computer science and netw Vol.22 No.3

This study aimed to explore science teachers' perceptions of obstacles that have affected their teaching during the COVID-19 pandemic. The sample comprised 204 science teachers in public schools within a Western district of Saudi Arabia. Results revealed that these teachers experienced obstacles across six areas: administration, students, teaching methods, assessment, technology, and learning aids. The study also explored teachers' perceptions of their current experience and offers suggestions for dealing with the identified obstacles.

Neorectal Mucosal Prolapse After Intersphincteric Resection for Low-Lying Rectal Cancer: A Case Report

Mohammed Alessa,Hyeon Woo Bae,Homoud Alawfi,Ahmad Sakr,Fozan Sauri,김남규 대한대장항문학회 2021 Annals of Coloproctolgy Vol.37 No.S

Radical resection for low rectal cancer is the mainstay among the treatment modalities. Intersphincteric resection (ISR) is considered a relatively new but effective surgical treatment for low-lying rectal tumor. As the sphincter preserving techniques get popularized, we notice uncommon complication associated with it in the form of rectal mucosal prolapse. We presented 2 rare cases that developed neorectal mucosa prolapse after ISR a complication following low rectal cancer surgery. Although ISR is a safe and effective surgical technique for low rectal cancer, it should be considered to correct modifiable possible risk factors. Also, Delorme procedure is good option for management of neorectal mucosal prolapse.

My Experiences as A Visiting Scholar in Korea

Mohammed Alessa 대한외과학회 2019 대한외과학회 학술대회 초록집 Vol.2019 No.10

Impact of COVID-19 on Entrepreneurship and Consumer Behaviour: A Case Study in Saudi Arabia

Adlah A,ALESSA,Taghreed M,ALOTAIBIE,Zaabi ELMOEZ,Haton E,ALHAMAD 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.5

COVID-19 presented the world with a severe loss of life and impact, which has no geographical bounds or expected time to when its effects will subside. It has affected countries across the globe, disrupting economic levels and businesses in every industry while also altering individuals’ everyday lives. The current research aims to examine the impact of coronavirus pandemic on entrepreneur’s business activities and their perceptions on the difference in consumer behavior during this time. The findings reveal the pandemic negatively impacted business productivity and profits, forcing many businesses to physically close permanently. Surprisingly, female entrepreneurs do not perceive a change in consumer behavior compared to pre-COVID-19 times. Interestingly, the results indicate there is a negative impact on employees’ efficiency to conduct work in which almost no research has conveyed such a finding. For this purpose, a survey was conducted with 445 responses from male and female entrepreneurs in the capital city of Riyadh, Saudi Arabia, using a simple random sample over the period of four months. Ultimately, this research will help entrepreneurs gain more knowledge and a deeper understanding of this new environment necessary to undertaking certain measures and adaptability in order to sustain their businesses during unprecedented times.

Cultural Distance and Corporate Internationalization: Evidence from Emerging Economies

ELMOEZ, Zaabi,ZORGATI, Imen,ALESSA, Adlah A. Korea Distribution Science Association 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.3

This study investigates the relationship between cultural distance and entry mode choice, where the foreign investor firm and the host country are both from emergent economies. Within this framework, research is limited and the issue is whether companies, regardless of their specific situations, have the same strategy when they meet a high degree of uncertainty in the host environment. In this study, we focused on the influence of informal institutional factors: cultural distance, that has been extensively analyzed in international business, measured by Kogut and Singh index and defined according to Hofstede, Globe Project and Schwartz approaches. The general trend derived from prior research proves that when a company from a developed country is involved; overall more enthusiasm is shown for wholly-owned subsidiaries rather than joint venture. This result still stands validated for corporations from this emergent economy area. Our analysis of a sample of 163 FDI in the Kingdom of Saudi Arabia (KSA) using logistic binary regression model reveals that the foreign firms prefer to establish wholly-owned subsidiaries in the host country over entering into a joint venture with a local firm, taking into consideration the large cultural distance.

Characteristics of patients presented with metastases during or after completion of chemo-radiation therapy (CRT) for locally advanced rectal cancer: a case series

Radwan Torky,Mohammed Alessa,김호승,Ahmed Sakr,Eman Zakarneh,Fozan Sauri,Bae Heejin,김남규 대한대장항문학회 2021 Annals of Coloproctolgy Vol.37 No.3

Purpose: Locally advanced rectal cancer (LARC) is managed by chemoradiotherapy (CRT), followed by surgery. Herein we reported patients with metastases during or after CRT. Methods: Data of patients with LARC who received CRT from 2008 to 2017 were reviewed. Patients with metastases after CRT were included. Those with metastatic tumors at the initial diagnosis were excluded. Results: Fourteen patients (1.3%) of 1,092 who received CRT presented with metastases. Magnetic resonance circumfer- ential resection margin (mrCRM) and mesorectal lymph nodes (LNs) were positive in 12 patients (85.7%). Meanwhile, magnetic resonance extramural vascular invasion (mrEMVI) was positive in 10 patients (71.4%). Magnetic resonance tu- mor regression grade (mrTRG) 4 and mrTRG5 was detected in 5 and 1 patient respectively. Ten patients (71.4%) under- went combined surgery and 3 (21.4%) received palliative chemotherapy. Conclusion: Patients with metastases after CRT showed a higher rate of positive mrCRM, mrEMVI, mesorectal LNs, and poor tumor response. Further studies with a large number of patients are necessary for better survival outcomes in LARC.

Optimal Complete Rectum Mobilization Focused on the Anatomy of the Pelvic Fascia and Autonomic Nerves: 30 Years of Experience at Severance Hospital

김남규,김호승,Mohmmed Alessa,Radwan Torky 연세대학교의과대학 2021 Yonsei medical journal Vol.62 No.3

The primary goal of surgery for rectal cancer is to achieve an oncologically safe resection, i.e., a radical resection with a sufficient safe margin. Total mesorectal excision has been introduced for radical surgery of rectal cancer and has yielded greatly improved oncologic outcomes in terms of local recurrence and cancer-specific survival. Along with oncologic outcomes, functional outcomes, such as voiding and sexual function, have also been emphasized in patients undergoing rectal cancer surgery to improve quality of life. Intraoperative nerve damage or combined excision is the primary reason for sexual and urinary dysfunction. In the past, these forms of damage could be attributed to the lack of anatomical knowledge and poor visualization of the pelvic autonomic nerve. With the adoption of minimally invasive surgery, visualization of nerve structure and meticulous dissection for the mesorectum are now possible. As the leading hospital employing this technique, we have adopted minimally invasive platforms (laparoscopy, robot-assisted surgery) in the field of rectal cancer surgery and standardized this technique globally. Here, we review a standardized technique for rectal cancer surgery based on our experience at Severance Hospital, suggest some practical technical tips, and discuss a couple of debatable issues in this field.

Odds Ratio and Probability of Conception of Holstein Friesian Dairy Cows in the Kingdom of Saudi Arabia

Ali, A.K.A.,ALEssa, A.A.,Alshaikh, M.A.,Aljumaah, R.S.,Al-Haidary, A.A.,Alkraidees, M.S. Asian Australasian Association of Animal Productio 2005 Animal Bioscience Vol.18 No.3

Logistic Regression Analysis was used to compute the odds ratio (OR) and probability of conception of Holstein dairy cows of AL-MARAIE company. Data consisted of 103,778 reproductive records collected from three farms in the central region in the Kingdom of Saudi Arabia. Records were classified according to lactation number, season of calving and milk level. At first lactation, OR of first service was 0.63 of other services and probability of pregnancy from first services was 0.39. Odds ratio increased to 1.72 at fourth lactation or probability of conception reached 0.63. The probability of conception increased from 0.39 for cows inseminated at first services to 0.75 at fifth service insemination. Odds ratio of cows calving in winter were higher than those calving in summer. Odds ratio of conception of low producing cows is about twice as likely to occur from first service as from other services. However, OR of conception of high producing cows was higher than one (probability=0.56) from first service and increased to 1.63 (probability=0.65) from third service. Odds ratio was in favor of the right uterus horn where probability of conception from first service was slightly greater than 50% in first and second lactations and less than 50% in favor of left horn in later lactations.

Applications of 5G and 6G in Smart Health Services

Al-Jawad, Fatimah,Alessa, Raghad,Alhammad, Sukainah,Ali, Batoola,Al-Qanbar, Majd,Rahman, Atta-ur International Journal of Computer ScienceNetwork S 2022 International journal of computer science and netw Vol.22 No.3

Healthcare organizations are overwhelmingly embracing smart value-based care strategies, which focuses on providing superior treatment at a significantly lower cost and quality of service (QoS). For these purposes, fifth generation (5G) of mobile service provides an innumerable improvement that clearly outperforms previous generations e.g., 3G and 4G. However, as with most advancements, 5G is projected to introduce new challenges, prompting the community to think about what comes next. This research was conducted to examine the most recent smart 5G technology applications and the solutions they provide to the healthcare industry. Finally, the paper discusses how the upcoming 6G technology has the potential to transform the future of healthcare sector even beyond the current 5G systems.

Postoperative developed intra-abdominal desmoid tumor after surgical resection of gastrointestinal malignancy: A review of 10 cases

Ahmad Sakr,Jong Min Lee,Homoud Alawfi,Mohammed Alessa,Nam Kyu Kim 대한종양외과학회 2019 Korean Journal of Clinical Oncology Vol.15 No.2

Purpose: Desmoid tumors are locally aggressive tumors with no known potential for metastasis. They tend to recur even after complete excision. Sometimes it is not easy to differentiate between intra-abdominal desmoid and tumor recurrence, especially after gastrointestinal (GI) tumor resection. The current study aims to review the characteristics, management, and outcomes of patients with intra-abdominal desmoid tumor post GI resection. Methods: During the period between 2007 and 2018, after a retrospective review of patients’ clinical data, 10 patients were finally included. Medical records were screened for demographic, clinical, pathological data, management strategy, postoperative morbidity, mortality, recurrence rate and follow-up. Results: The study comprised 10 patients (8 males). The median age was 53.5 years (range, 35–68 years). Two patients diagnosed as familial adenomatous polyposis (FAP). All the patients underwent previous GI resection: three (30%) for colon cancer, three (30%) gastrectomy, two (20%) total proctocolectomy with ileal pouch-anal anastomosis (TPC+IPAA) for FAP, one (10%) low anterior resection (three rectal cancers) and one (10%) distal pancreatectomy. The tumor was found to be in bowel mesentery in eight cases (80%). The median tumor size was 5.3 cm (range, 2.6–19.0 cm). Six patients (60%) underwent open resection, while four patients (40%) underwent laparoscopic surgery. Complications occurred in five cases (50%) and ranged from Clavien-Dindo (II-III). The median follow-up period was 16.5 months (1.5–136.0 months) with recurrence in one case (10%). Pathology came out to be desmoid tumor fibromatosis in all cases. Conclusion: When a mass develops after surgical resection for abdominal GI malignancy and tends to be large in size, located in the bowel mesentery and away from previous primary tumor site, most probably it is desmoid rather than tumor recurrence