• Title/Summary/Keyword: College Selection

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Evolutionary Genetic Models of Mental Disorders (정신장애의 진화유전학적 모델)

  • Park, Hanson
    • Korean Journal of Biological Psychiatry
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    • v.26 no.2
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    • pp.33-38
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    • 2019
  • Psychiatric disorder as dysfunctional behavioural syndrome is a paradoxical phenomenon that is difficult to explain evolutionarily because moderate prevalence rate, high heritability and relatively low fitness are shown. Several evolutionary genetic models have been proposed to address this paradox. In this paper, I explain each model by dividing it into selective neutrality, mutation-selection balance, and balancing selection hypothesis, and discuss the advantages and disadvantages of them. In addition, the feasibility of niche specialization and frequency dependent selection as the plausible explanation about the central paradox is briefly discussed.

SOME SMALL DEVIATION THEOREMS FOR ARBITRARY RANDOM FIELDS WITH RESPECT TO BINOMIAL DISTRIBUTIONS INDEXED BY AN INFINITE TREE ON GENERALIZED RANDOM SELECTION SYSTEMS

  • LI, FANG;WANG, KANGKANG
    • Journal of applied mathematics & informatics
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    • v.33 no.5_6
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    • pp.517-530
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    • 2015
  • In this paper, we establish a class of strong limit theorems, represented by inequalities, for the arbitrary random field with respect to the product binomial distributions indexed by the infinite tree on the generalized random selection system by constructing the consistent distri-bution and a nonnegative martingale with pure analytical methods. As corollaries, some limit properties for the Markov chain field with respect to the binomial distributions indexed by the infinite tree on the generalized random selection system are studied.

Study on the methods of acupuncture and moxibustion in the Shin section (in the Naegyeong chapter) of the Donguibogam ("동의보감(東醫寶鑑)" "신(神)"문(門) 침구법(鍼灸法)에 대한 고찰(考察))

  • Kim Yong-Jin;Lee Joon-Moo
    • Korean Journal of Acupuncture
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    • v.23 no.4
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    • pp.49-57
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    • 2006
  • Objectives : The aim of this study was to show the rationale of point-selection on the methods of acupuncture and moxibustion in the Shin section(in the Naegyeong chapter) of the Donguibogam. Methods : First, We summarized the cause of each disease in the Shin section(in the Naegyeong chapter) of the Donguibogam. Then, We explained the rationale of acupuncture point-selection referring to the cause of disease, physiology of the Oriental medicine, exposition of acupuncture point name, character of each acupuncture points, flow of meridian pathways and specific acupuncture points etc. Results and Conclusions : Total 44 acupuncture points were used in the Shin section(in the Naegyeong chapter) of the Donguibogam. Most of acupuncture points were specific acupuncture points. but, some rationale of acupuncture point-selection were explained by the cause of disease, physiology of the Oriental medicine, exposition of acupuncture point name, flow of meridian pathways etc.

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Suggestions to Improve Selection-Bias in Teaching or Studying Programs (교수 및 학습 프로그램 평가연구의 선별편향성 개선을 위한 제언)

  • Park, Kyoungho
    • Korean Medical Education Review
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    • v.12 no.1
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    • pp.3-8
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    • 2010
  • This study is designed to evaluate the effectiveness of teaching or studying programs, and thus to overcome the selectionbias in studies. Selection-bias derived from unobservable characteristics in the course of participants selection of the teaching or studying programs, in the case of cross-section data instrumental variable(IV) method and two stage least square estimation were suggested as an analysis tool. Panel data were analyzed by using both fixed effect in which individual effects are captured by intercept terms and random effect estimation where an unobserved effect can be characterized as being randomly drawn from a given distribution.

Application of Analytic Hierarchy Process for the Selection of Cotton Fibers

  • Majumdar Abhijit;Sarkar Bijan;Majumdar Prabal Kumar
    • Fibers and Polymers
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    • v.5 no.4
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    • pp.297-302
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    • 2004
  • In many engineering applications, the final decision is based on the evaluation of a number of alternatives in terms of a number of criteria. This problem may become very intricate when the selection criteria are expressed in terms of different units or the pertinent data are difficult to be quantified. The Analytic Hierarchy Process (AHP) is an effective way in dealing with such kind of complicated problems. Cotton fiber is selected or graded, in the spinning industries, based on several quality criteria. However, the existing selection or grading method based on Fiber quality Index (FqI) is rather crude and ambiguous. This paper presents a novel approach of cotton fiber selection using the AHP methodology of Multi Criteria Decision Making.

A Study on Low Power Force-Directed scheduling for Optimal module selection Architecture Synthesis (최적 모듈 선택 아키텍쳐 합성을 위한 저전력 Force-Directed 스케쥴링에 관한 연구)

  • Choi Ji-young;Kim Hi-seok
    • Proceedings of the IEEK Conference
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    • 2004.06b
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    • pp.459-462
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    • 2004
  • In this paper, we present a reducing power consumption of a scheduling for module selection under the time constraint. A a reducing power consumption of a scheduling for module selection under the time constraint execute scheduling and allocation for considering the switching activity. The focus scheduling of this phase adopt Force-Directed Scheduling for low power to existed Force-Directed Scheduling. and it constructs the module selection RT library by in account consideration the mutual correlation of parameters in which the power and the area and delay. when it is, in this paper we formulate the module selection method as a multi-objective optimization and propose a branch and bound approach to explore the large design space of module selection. Therefore, the optimal module selection method proposed to consider power, area, delay parameter at the same time. The comparison experiment analyzed a point of difference between the existed FDS algorithm and a new FDS_RPC algorithm.

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Efficient Phosphinothricin Mediated Selection of Callus Derived from Brachypodium Mature Seed

  • Jeon, Woong Bae;Lee, Man Bo;Kim, Dae Yeon;Hong, Min Jeong;Lee, Yong Jin;Seo, Yong Weon
    • Korean Journal of Breeding Science
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    • v.42 no.4
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    • pp.351-356
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    • 2010
  • Brachypodium distachyon is rapidly emerged in biological study and has been currently used as a model system for genetics and functional studies for crop improvement and biofuel production. Phosphinothricin (PPT) has been widely used as a selectable agent, which raises ammonium content and induces toxicity in non-transformed plant cells. However PPT selection is not much effective on Brachypodium callus consequently reducing transformation efficiency. In order to identify the efficient conditions of PPT selection, calli obtained from mature seeds of Brachypodium (PI 254867) were cultured on the callus inducing medium (CIM) or regeneration medium (ReM) containing serial dilutions of the PPT (0, 2, 5, 10, and 15 mg/l) in dark or light condition. Callus growth and ammonium content of each treatment were measured 2 weeks after the treatment. Although callus growth and ammonium content did not show much difference in CIM, slow callus growth and increased ammonium accumulation were found in ReM. No significant difference of ammonium accumulation in response to PPT was found between dark and light conditions. In order to identify major factors affecting increased ammonium accumulation, callus was cultured on the media in combined with phytohormones (2,4-D or kinetin) and carbon sources (sucrose or maltose) containing with PPT (5 mg/l). The highest ammonium content in callus was found in the kinetin and maltose media.

Optimal Power Allocation and Relay Selection for Cognitive Relay Networks using Non-orthogonal Cooperative Protocol

  • Lan, Peng;Chen, Lizhen;Zhang, Guowei;Sun, Fenggang
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.10 no.5
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    • pp.2047-2066
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    • 2016
  • In this paper, we investigate joint power allocation and relay selection (PARS) schemes in non-orthogonal cooperative protocol (NOCP) based cognitive relay networks. Generally, NOCP outperforms the orthogonal cooperative protocol (OCP), since it can provide more transmit diversity. However, most existing PARS schemes in cognitive relay networks focus on OCP, which are not suitable for NOCP. In the context of NOCP, we first derive the joint constraints of transmit power limit for secondary user (SU) and interference constraint for primary user (PU). Then we formulate optimization problems under the aforementioned constraints to maximize the capacity of SU in amplify-and-forward (AF) and decode-and-forward (DF) modes, respectively. Correspondingly, we derive the closed form solutions with respect to different parameters. Numerical results are provided to verify the performance improvement of the proposed PARS schemes.

Selection of Fusion Level for Adolescent Idiopathic Scoliosis Surgery : Selective Fusion versus Postoperative Decompensation

  • Kim, Do-Hyoung;Hyun, Seung-Jae;Kim, Ki-Jeong
    • Journal of Korean Neurosurgical Society
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    • v.64 no.4
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    • pp.473-485
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    • 2021
  • Adolescent idiopathic scoliosis (AIS), which is associated with an extensive range of clinical and radiological presentations, is the one of the most challenging spinal disorders. The goals of surgery are to correct the deformity in 3 dimensions and to preserve motion segments while avoiding complications. Despite the ongoing evolution of classification systems and algorithms for the surgical treatment of AIS, there has been considerable debate regarding the selection of an appropriate fusion level in AIS. In addition, there is no consensus regarding the exact description, relationship, and risk factors of coronal decompensation following selective fusion. In this review, we summarize the current concepts of selection of the fusion level for AIS and review the available information about postoperative coronal decompensation.

QoE-aware Network Selection Algorithm for Scalable Video Streaming Services in the Heterogeneous Wireless Networks (다종 무선망 환경에서 스케일러블 비디오 스트리밍 서비스를 위한 체감품질기반의 망 선택 알고리즘 방법)

  • Seok, Joo-Myoung;Son, Jung-Hyun;Suh, Doug-Young;Kim, Kyu-Heon
    • Journal of Advanced Navigation Technology
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    • v.15 no.1
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    • pp.76-82
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    • 2011
  • Most previous work on network selection in heterogeneous wireless networks has concentrated on the quality of the network alone. Therefore, users are not satisfied with network quality based network selection due to different user preferences. To solve this problem, we proposes a QoE-aware network selection algorithm that is based on the consumption patterns of user preferences which is divided into normal user, cost-sensitive user, quality-sensitive user and video quality as well as network quality. As a result of experiments, cost-sensitive user and quality-sensitive user are satisfied with enhanced QoE by 36% and 3% from the proposed network selection algorithm compared to the normal user, respectively.