• Title/Summary/Keyword: Prospective Studies

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Effects of Service Quality in Internet Shopping Mall on Electronic Commerce Performance (인터넷쇼핑몰의 서비스 품질이 전자상거래 성과에 미치는 영향)

  • Yoo, Il;Na, Kwang-Yoon;Choi, Hyuk-Ra
    • The Journal of Society for e-Business Studies
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    • v.4 no.3
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    • pp.77-94
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    • 1999
  • The Electronic Commerce is expected as one of the most prospective industries in the 21th century, This research performed a survey and analysis is based on the results of the service quality model and previous research of the service quality in MIS. Service quality, one instrument developed by the marketing area, is provided as a possible measure of internet shopping mall, Service quality measures five service dimensions of tangible, reliability, responsiveness, assurance and empathy. The main purposes of this study are to develop an exploratory model based on service quality that can explain the factors of customer's perceived service quality and investigate how these factors are related to consumer satisfaction. The results of this survey are summarized as follows: (1) Reliability and responsiveness of internet shopping mall are evaluated as very important factors, (2) Service quality is an antecedent of consumer satisfaction, (3) Consumer satisfaction has a significant effect on purchase intentions.

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Stereotactic radiotherapy for early stage non-small cell lung cancer

  • Ricardi, Umberto;Badellino, Serena;Filippi, Andrea Riccardo
    • Radiation Oncology Journal
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    • v.33 no.2
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    • pp.57-65
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    • 2015
  • Stereotactic body radiotherapy (SBRT) represents a consolidated treatment option for patients with medically inoperable early stage non-small cell lung cancer (NSCLC). The clinical evidence accumulated in the past decade supports its use as an alternative to surgery with comparable survival outcomes. Due to its limited toxicity, SBRT is also applicable to elderly patients with very poor baseline pulmonary function or other severe comorbidities. Recent comparative studies in operable patients raised the issue of the possible use of SBRT also for this subgroup, with quite promising results that still should be fully confirmed by prospective trials with long-term follow-up. Aim of this review is to summarize and discuss the major studies conducted over the years on SBRT and to provide data on the efficacy and toxicity of this radiotherapy technique for stage I NSCLC. Technical aspects and quality of life related issues are also discussed, with the goal to provide information on the current role and limitations of SBRT in clinical practice.

Growth and sex differentiation of children born small for gestational age (부당경량아에서의 성장과 성 발달)

  • Kim, Se Young
    • Clinical and Experimental Pediatrics
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    • v.52 no.2
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    • pp.142-151
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    • 2009
  • The incidence of small for gestational age (SGA) births is frequent, accounting for 2.3% to 8% of all live births. Several childhood and adult diseases are related to early postnatal growth and birth size, and 10% of children born SGA may have a short stature throughout postnatal life. Additionally, they may have abnormal growth hormone (GH)-insulin like growth factor axis, HPA axis, and gonadal function. Permanent changes are detrimental in an environment of nutritional abundance, and predispose SGA children to an array of diseases in adolescence and adulthood. Such changes may also cause premature pubarche, adrenarche, and precocious puberty. The varying results from clinical studies necessitate more prospective case control studies. Reproductive tract abnormalities and reproductive dysfunction are related to SGA births. GH treatment is required for SGA infants who do not experience catch-up growth.

Association Between Green Tea Consumption and Lung Cancer Risk

  • Lee, Andy H.;Liang, Wenbin;Hirayama, Fumi;Binns, Colin W.
    • Journal of Preventive Medicine and Public Health
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    • v.43 no.4
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    • pp.366-367
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    • 2010
  • Green tea is a popular beverage and its health benefits are well known. However, inconsistent results have been reported in observational studies concerning the association between green tea consumption and the lung cancer risk. In this commentary, several methodological issues underlying the measurement of tea exposure are highlighted. The recommendations should be useful for designing and planning prospective cohort studies to ascertain the protective effect of green tea against lung cancer.

A review of temporomandibular joint-related papers published between 2014-2015

  • Singh, Vaibhav;Sudhakar, K.N.V.;Mallela, Kiran Kumar;Mohanty, Rajat
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.43 no.6
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    • pp.368-372
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    • 2017
  • We conducted a retrospective study and reviewed the temporomandibular joint (TMJ)-related papers published in a leading international journal, Journal of Oral and Maxillofacial Surgery, between January 2014 and December 2015. The study was conducted to ascertain and compare the trends of articles being published in the years 2014 and 2015. A total of 28 articles were reviewed, of which most of the full-length articles were on clinical management and outcomes and the role of radiology. The bulk of the studies were prospective, and less interest was shown in experimental research. A thorough review and analysis thus gives the impression that there is a great need for well-designed clinical studies on TMJ.

Non-Redundancy within the RAS Oncogene Family: Insights into Mutational Disparities in Cancer

  • Lau, Ken S.;Haigis, Kevin M.
    • Molecules and Cells
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    • v.28 no.4
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    • pp.315-320
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    • 2009
  • The RAS family of oncoproteins has been studied extensively for almost three decades. While we know that activation of RAS represents a key feature of malignant transformation for many cancers, we are only now beginning to understand the complex underpinnings of RAS biology. Here, we will discuss emerging cancer genome sequencing data in the context of what is currently known about RAS function. Taken together, retrospective studies of primary human tissues and prospective studies of experimental models support the notion that the variable mutation frequencies exhibited by the RAS oncogenes reflect unique functions of the RAS oncoproteins.

Documentation and Data Collection of Neck Dissection and its Specimen (경부청소술 시료의 기록과 자료의 보관)

  • Choi Eun-Chang;Koh Yoon-Woo;Kim Chul-Ho;Kim Dong-Young
    • Korean Journal of Head & Neck Oncology
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    • v.17 no.1
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    • pp.8-12
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    • 2001
  • It is well established that cervical lymph node metastasis is the base of clinical study on head and neck cancer. But few studies have been reported on lymph node metastasis of head and neck cancer in Korea. We consider it essential that studies on cervical lymph node metastases are conducted on pathologically proven database. Therefore, We must have database and consitent system for documentation and data collection of neck dissection specimen for prospective and retrospective study. Herein, We suggest several points from our experiences performing the proper data collection and documentation of neck dissection specimen.

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Risk Factors for the Progression of Chronic Kidney Disease in Children

  • Ahn, Yo Han;Kang, Hee Gyung;Ha, Il-Soo
    • Childhood Kidney Diseases
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    • v.25 no.1
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    • pp.1-7
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    • 2021
  • Chronic kidney disease (CKD) in children is associated with various complications, including poor growth and development, mineral bone disorder, cardiovascular disease, kidney failure, and mortality. Slowing down the progression of CKD is important since CKD is often not curable. Prospective cohort studies have been conducted to understand the progression and outcomes of CKD in children, and these studies have identified non-modifiable and modifiable risk factors. Recognition of known risk factors and early intervention are important to delay the progression of kidney function decline in children.

Donor Complication in Living Donor Liver Transplantation (생체간이식에 관한 공여자 합병증)

  • Yang, Jae Do;Yu, Hee Chul
    • Korean Journal of Transplantation
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    • v.31 no.4
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    • pp.177-181
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    • 2017
  • Living donor liver transplantation (LDLT) has become an inevitable procedure due a shortage of deceased donors under the influence of religious and native cultures. The most important concern in LDLT is donor safety. This study reviewed the safety of LDLT donors from reported studies of morbidity and mortality. Many studies have reported mortality and morbidity rates ranging from 0% to 33% for healthy liver donors. Use of laparoscopic surgery on LDLT donors has advantages of reduced blood loss, lower postoperative morbidity and shorter hospital stay relative to conventional open surgery. There is a consensus that remnant liver volume (RLV), degree of steatosis, and donor age are the most important factors influencing donor safety. In LDLT, donor hepatectomy can be performed successfully with minimal and easily controlled complications. However, a large-scale prospective cohort study is needed to better understand the risk factors and accurately determine the complication rates for LDLT.

Counter-Productive Countering-Violent-Extremism Initiatives: The Case of Malaysia

  • Kevin Fernandez
    • SUVANNABHUMI
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    • v.15 no.1
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    • pp.205-227
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    • 2023
  • This study seeks to examine how the West, particularly United States (US), influences the narratives about terrorism, radicalism, and combating violent extremism (CVE) in Muslim majority nations such as Malaysia. We contend that some local institutions and researchers in Malaysia may have assumed the Faustian bargain by agreeing with the Western narrative that Islam's teachings promote violence and extremism in order to meet the demands of survival, whether it be funding for everyday operations or meeting the demands of universities or research institutions to sustain themselves and meet their performance indicators. We conducted a systematic literature review (SLR) from 2001 to 2021 and used Foucauldian Critical Discourse Analysis (CDA) to understand the role of the US in purposefully supporting workshops and research activities of particular institutions with the intent to influence national discourse on securitization and prospective policy implications. More importantly, we wish to alert Malaysian policymakers to pay particular attention and scrutinize ongoing programs such as the "Building Community Resilience" as these may inadvertently foster Islamophobia.