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Bariatric surgery for non-alcoholic fatty liver disease: Indications and post-operative management
Anja Geerts,Sander Lefere 대한간학회 2023 Clinical and Molecular Hepatology(대한간학회지) Vol.29 No.-
The prevalence of obesity and metabolic consequences such as nonalcoholic fatty liver diseases (NAFLD) has become a crucial health problem. Lifestyle modifications, especially weight loss, effectively reduces liver injury in NAFLD patients. However, adherence to lifestyle changes is very low in the clinical setting. Bariatric surgery can improve metabolic components and cause long-term weight loss. Therefore, bariatric surgery could serve as an attractive treatment option for NAFLD patients. This review integrates data about the benefits of bariatric surgery on NAFLD but also describes the potential pitfalls.
Naichuan Su(Naichuan Su ),Sana Harroui(Sana Harroui ),Fred Rozema(Fred Rozema ),Stefan Listl(Stefan Listl ),Jan de Lange(Jan de Lange ),Geert J.M.G. van der Heijden(Geert J.M.G. van der Heijden ) 대한구강악안면외과학회 2023 대한구강악안면외과학회지 Vol.49 No.1
The current study aimed to explore the types and frequencies of uncommon complications associated with third molar extractions based on a scoping review of case reports and case series. The study used an electronic literature search based on PubMed and Embase up to March 31, 2020, with an update performed on October 22, 2021. Any case reports and case series that reported complications associated with third molar extractions were included. The types of complications were grouped and the main symptoms of each type of complication were summarized. A total of 51 types of uncommon complications were identified in 248 patients from 186 studies. Most types of complications were post-operative. In the craniofacial and cervical regions, the most frequent complications included iatrogenic displacement of the molars or root fragments in the craniofacial area, late mandibular fracture, and subcutaneous emphysema. In other regions, the most frequent complications include pneumomediastinum, pneumorrhachis, pneumothorax, and pneumopericardium. Of the patients, 37 patients had life-threatening uncommon complications and 20 patients had long-term/irreversible uncommon complications associated with third molar extractions. In conclusion, a variety of uncommon complications associated with third molar extractions were identified. Most complications occurred in the craniofacial and cervical regions and were mild and transient.
Design of a ship model for hydro-elastic experiments in waves
Adolfo Marón,Geert Kapsenberg 대한조선학회 2014 International Journal of Naval Architecture and Oc Vol.6 No.4
Large size ships have a very flexible construction resulting in low resonance frequencies of the structuraleigen-modes. This feature increases the dynamic response of the structure on short period waves (springing) and onimpulsive wave loads (whipping). This dynamic response in its turn increases both the fatigue damage and the ultimateload on the structure; these aspects illustrate the importance of including the dynamic response into the design loadsfor these ship types. Experiments have been carried out using a segmented scaled model of a container ship in aSeakeeping Basin. This paper describes the development of the model for these experiments; the choice was made todivide the hull into six rigid segments connected with a flexible beam. In order to model the typical feature of the openstructure of the containership that the shear center is well below the keel line of the vessel, the beam was built into themodel as low as possible. The model was instrumented with accelerometers and rotation rate gyroscopes on eachsegment, relative wave height meters and pressure gauges in the bow area. The beam was instrumented with straingauges to measure the internal loads at the position of each of the cuts. Experiments have been carried out in regularwaves at different amplitudes for the same wave period and in long crested irregular waves for a matrix of wave heightsand periods. The results of the experiments are compared to results of calculations with a linear model based onpotential flow theory that includes the effects of the flexural modes. Some of the tests were repeated with additionallinks between the segments to increase the model rigidity by several orders of magnitude, in order to compare the loadsbetween a rigid and a flexible model.
Diya Dou,Geert Devos,Martin Valcke 서울대학교 교육연구소 2016 Asia Pacific Education Review Vol.17 No.2
School autonomy in personnel policy is important to effective personnel management. With increased autonomy in personnel policy, principals could wield their leadership to improve teachers’ organizational commitment. However, little is known about whether the given autonomy in personnel policy meets principals’ expectation and whether and how the gap in between has an effect on teachers’ organizational commitment. This research explores the effects of autonomy gap in personnel policy, principal leadership, teachers’ self-efficacy and school contextual factors on teachers’ organizational commitment. Multilevel analysis was used. The results show the effects of autonomy gap in personnel policy differ among areas. In particular, the autonomy gap in salary was found to be a significant antecedent of teachers’ organizational commitment. The results also highlight the importance of principal leadership in this process. Principals with a stronger leadership tend to perceive generally a larger autonomy gap in personnel policy. In addition, when transformational leadership increased, its positive influence on teachers’ organizational commitment became even stronger. Implications for developing efficacious leadership and autonomy policy in personnel management were discussed.
Left abomasal displacement between the uterus and rumen during bovine twin pregnancy
Bart Pardon,Geert Vertenten,Pieter Cornillie,Stijn Schauvliege,Frank Gasthuys,Gunther van Loon,Piet Deprez 대한수의학회 2012 JOURNAL OF VETERINARY SCIENCE Vol.13 No.4
Here, we describe two cases of left displaced abomasum (LDA) in Holstein cattle at 6 and 9 months of twin gestation. Clinical examination revealed signs of proximal ileus with marked abdominal distension, but no ping sounds. An unusually high position of the gravid uterine horn on the left side was observed with ultrasound. Left exploratory laparotomy confirmed that the abomasum was displaced to the left and entrapped between the rumen and twin gravid uterine horn. A left surgical approach was necessary to correct the condition. Both animals recovered and gave birth to healthy twins. The present cases indicate that the subomental position of a heavy twin gravid uterine horn is a possible mechanical cause of LDA.
Chang Zhu,Geert Devos,Yifei Li 서울대학교 교육연구소 2011 Asia Pacific Education Review Vol.12 No.2
This study aims to analyze and validate the dimensions and specific features of a school culture in a Chinese context. A sample of 181 teachers from a Chinese primary and secondary school in Beijing participated in a survey that measures school organizational cultural characteristics and teacher organizational commitment and well-being as outcomes of school culture. Specific cultural characteristics of this school and their impact on teacher organizational commitment and well-being were identified. The findings provide important information for understanding a school culture in the Chinese context. It enriches the theory related to school culture and the research findings that have been identified in the Western settings.
Genomic stability in Nicotiana plants upon silencing of the mismatch repair gene MSH2
Marcke, Inke Van,Angenon, Geert 한국식물생명공학회 2013 Plant biotechnology reports Vol.7 No.4
The Mismatch Repair (MMR) system is a highly conserved pathway for the maintenance of genomic stability in many organisms. In plants, this is particularly important because of the lack of a reserved germline. Suppression of MMR leads to an accumulation of random mutations in the genome over successive generations, and thus maximizes genetic diversity. MMR deficiency has been shown to be a useful technique in plant breeding, complementary to chemical or physical mutagenesis. We have developed an artificial microRNA (amiRNA) targeting the MSH2 gene, which is generally applicable in Solanaceae. Two amiRNA precursors were inserted in a transformation vector, under the control of the CaMV 35S promoter and the meiosis active AtDMC1 promoter, respectively. Introduction of this amiRNA construct in Nicotiana tabacum and N. plumbaginifolia reduced the MSH2 transcript levels to 20-30 %. Morphological and developmental abnormalities and plants with white sectors on the first pair of leaves or on the cotyledons (referred to as 'chimeric albinos') appeared in the transformed Nicotiana lines at higher frequencies than in the control lines. Also, some plants which show an increased tolerance for the herbicide chlorsulfuron were found. However, the mutant phenotypes were not transmitted to subsequent generations. We conclude that the designed amiRNA was capable of suppressing the MSH2 activity, which caused the occurrence of somatic mutations. Apparently, the silencing of MSH2 was not strong enough in the germline to cause inheritable mutations.