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      • KCI등재후보

        Relationship between Psychosocial Risk Factors and Work-Related Musculoskeletal Disorders among Public Hospital Nurses in Malaysia

        Nur,Azma,Amin,Rusli,Nordin,Quek,Kia,Fatt,Rahim,M,Noah,Jennifer,Oxley 대한직업환경의학회 2014 대한직업환경의학회지 Vol.26 No.3

        Objective: This study examined the relationships between psychosocial work factors and risk of WRMSDs among public hospital nurses in the Klang Valley, Malaysia. Methods: We conducted a cross-sectional study among 660 public hospital nurses. A self-administered questionnaire was used to collect data on the occurrence of WRMSDs according to body regions, socio-demographic profiles, occupational information and psychosocial risk factors. 468 questionnaires were returned (response rate of 71%), and 376 questionnaires qualified for subsequent analysis. Univariate analyses were applied to test for mean and categorical differences across the WRMSDs; multiple logistic regression was applied to predict WRMSDs based on the Job Strain Model's psychosocial risk factors. Results: Over two thirds of the sample of nurses experienced discomfort or pain in at least one site of the musculoskeletal system within the last year. The neck was the most prevalent site (48.94%), followed by the feet (47.20%), the upper back (40.69%) and the lower back (35.28%). More than 50% of the nurses complained of having discomfort in region one (neck, shoulders and upperback) and region four (hips, knees, ankles, and feet). The results also revealed that psychological job demands, job strain and iso-strain ratio demonstrated statistically significant mean differences (p < 0.05) between nurses with and without WRMSDs. According to univariate logistic regression, all psychosocial risk factors illustrated significant association with the occurrence of WRMSDs in various regions of the body (OR: 1.52?2.14). Multiple logistic regression showed all psychosocial risk factors were significantly associated with WRMSDs across body regions (OR: 1.03?1.19) except for region 1 (neck, shoulders and upper back) and region 4 (hips, knees, ankles, and feet). All demographic variables except for years of employment were statistically and significantly associated with WRMSDs (p < 0.05). Conclusions: The findings indicated the high prevalence of WRMSDs in many body regions, and the risks of developing WRMSDs according to the various body regions were associated with important psychosocial risk factors based on the job strain model. These findings have implications for the management of WRMSDs among public hospital nurses in the Klang Valley, Malaysia.

      • KCI등재

        Automatic False-Alarm Labeling for Sensor Data

        Taufik Nur Adi Hyerim Bae(배혜림), Nur Ahmad Wahid) 한국컴퓨터정보학회 2019 韓國컴퓨터情報學會論文誌 Vol.24 No.2

        A false alarm, which is an incorrect report of an emergency, could trigger an unnecessary action. The predictive maintenance framework developed in our previous work has a feature whereby a machine alarm is triggered based on sensor data evaluation. The sensor data evaluator performs three essential evaluation steps. First, it evaluates each sensor data value based on its threshold (lower and upper bound) and labels the data value as “alarm” when the threshold is exceeded. Second, it calculates the duration of the occurrence of the alarm. Finally, in the third step, a domain expert is required to assess the results from the previous two steps and to determine, thereby, whether the alarm is true or false. There are drawbacks of the current evaluation method. It suffers from a high false-alarm ratio, and moreover, given the vast amount of sensor data to be assessed by the domain expert, the process of evaluation is prolonged and inefficient. In this paper, we propose a method for automatic false-alarm labeling that mimics how the domain expert determines false alarms. The domain expert determines false alarms by evaluating two critical factors, specifically the duration of alarm occurrence and identification of anomalies before or while the alarm occurs. In our proposed method, Hierarchical Temporal Memory (HTM) is utilized to detect anomalies. It is an unsupervised approach that is suitable to our main data characteristic, which is the lack of an example of the normal form of sensor data. The result shows that the technique is effective for automatic labeling of false alarms in sensor data.

      • The Process Of Increasing Competence Of Vocational School Students Through Industrial Work Practices

        Dr.,Nur,Hasanah,Galeh,Nur,Indriatno,Putra,Pratama,Bada,Haryadi 한국직업자격학회 2017 한국직업자격학회 학술대회 Vol.2017 No.10

        This research aims to: 1) express efforts of increasing the competence of Vocational High School students through industrial work practices, 2) find the participation rate of graduate of Vocational High School in the fulfillment of DUDI workforce. This research uses qualitative method with case study approach. The subjects of this study consist of students, teachers, principals and business world and industry. The technique of collecting data in this research is through observation, questionnaires and documentation. This research was conducted at SMKN 2 Depok and SMK Muhammadiyah 3 Yogyakarta. Technique of data analysis uses triangulation. The results of this research are: 1) the effort of increasing the competence of Vocational High School students through industrial work practice consisting of: observation, learning by doing, learning by experience, learning to solve problems, learning through work environment condition, and dialectical interaction between students and the environment at PI; 2) the average participation rate of graduates of Vocational High School in fulfillment of workforce in DUDI during the last three years is 75.4% work in accordance with their area, 18.94% continue study and the rest of 5.66% do entrepreneurship in accordance with the competence of their skills.

      • SCIESCOPUS

        Electrochemical Studies on Corrosion Inhibition Behaviour of Synthesised 2-acetylpyridine 4-ethyl-3-thiosemicarbazone and Its Tin(IV) Complex for Mild Steel in 1 M HCl Solution

        Hazani,,Nur,Nadira,Mohd,,Yusairie,Ghazali,,Sheikh,Ahmad,Izaddin,Sheikh,Mohd,Farina,,Yang,Dzulkifli,,Nur,Nadia The Korean Electrochemical Society 2019 Journal of electrochemical science and technology Vol.10 No.1

        Corrosion inhibition by synthesised ligand, 2-acetylpyridine 4-ethyl-3-thiosemicarbazone (HAcETSc) and its tin(IV) complex, dichlorobutyltin(IV) 2-acetylpyridine 4-ethyl-3-thiosemicarbazone ($Sn(HAcETSc)BuCl_2$) on mild steel in 1 M hydrochloric acid (HCl) was studied using weight loss measurement, potentiodynamic polarisation, electrochemical impedance spectroscopy (EIS), and scanning electron microscopy (SEM). The inhibition efficiency increases by increasing the inhibitor concentrations. The polarisation study showed that both synthesised compounds were mixed type inhibitors. The electrochemical impedance study showed that the presence of inhibitors caused the charge transfer resistance to increase as the concentration of inhibitors increased. The adsorption of these compounds on mild steel surface was found to obey Langmuir's adsorption isotherm with the free energy of adsorption ${\Delta}G{^o}_{ads}$ of -3.7 kJ/mol and -7.7 kJ/mol for ligand and complex respectively, indicating physisorption interaction between the inhibitors and 1 M HCl solution.

      • KCI등재

        Automatic False-Alarm Labeling for Sensor Data

        Adi,,Taufik,Nur,Bae,,Hyerim,Wahid,,Nur,Ahmad Korean Society of Computer Information 2019 韓國컴퓨터情報學會論文誌 Vol.24 No.2

        A false alarm, which is an incorrect report of an emergency, could trigger an unnecessary action. The predictive maintenance framework developed in our previous work has a feature whereby a machine alarm is triggered based on sensor data evaluation. The sensor data evaluator performs three essential evaluation steps. First, it evaluates each sensor data value based on its threshold (lower and upper bound) and labels the data value as "alarm" when the threshold is exceeded. Second, it calculates the duration of the occurrence of the alarm. Finally, in the third step, a domain expert is required to assess the results from the previous two steps and to determine, thereby, whether the alarm is true or false. There are drawbacks of the current evaluation method. It suffers from a high false-alarm ratio, and moreover, given the vast amount of sensor data to be assessed by the domain expert, the process of evaluation is prolonged and inefficient. In this paper, we propose a method for automatic false-alarm labeling that mimics how the domain expert determines false alarms. The domain expert determines false alarms by evaluating two critical factors, specifically the duration of alarm occurrence and identification of anomalies before or while the alarm occurs. In our proposed method, Hierarchical Temporal Memory (HTM) is utilized to detect anomalies. It is an unsupervised approach that is suitable to our main data characteristic, which is the lack of an example of the normal form of sensor data. The result shows that the technique is effective for automatic labeling of false alarms in sensor data.

      • KCI등재

        Plant Sterol Esters in Extruded Food Model Inhibits Colon Carcinogenesis by Suppressing Inflammation and Stimulating Apoptosis

        Nur,Fathonah,Sadek,Nancy,Dewi,Yuliana,Endang,Prangdimurti,Bambang,Pontjo,Priosoeryanto,Slamet,Budijanto 한국식품영양과학회 2017 Journal of medicinal food Vol.20 No.7

        Plant sterols in their free forms are known to inhibit colon cancer. Whether these activities persist when compounds are incorporated into processed food is not reported yet. This study aimed to test the ability of plant sterol esters (PSE) incorporated into a nonpuffed extruded food (NPE) model to inhibit colon carcinogenesis. PSE was added into NPE at four concentrations (0.0%, 0.7%, 1.4%, and 2.1%). PSE-NPE activity was tested in azoxymethane/dextran sodium sulfate-induced Balb/c mice. The groups given PSE-NPE did not show any colon tumor formation. Immunohistochemistry results revealed that the group fed with 1.4% PSE had the lowest histoscore for cyclooxygenase-2 expression and the highest histoscore for cleaved caspase-3, cleaved caspase-8, and cleaved caspase-9expressions. The results of this study indicated that even after incorporation into a food system, which is processed using high pressure and temperature, PSE retained its chemopreventive activity. The proposed mechanisms are by suppressing inflammation and inducing apoptosis.

      • KCI등재SCOPUS

        Investigation on the Dielectric, Physical and Chemical Properties of Palm Oil and Coconut Oil under Open Thermal Ageing Condition

        Nur,Aqilah,Mohamad,Norhafiz,Azis,Jasronita,Jasni,Mohd,Zainal,Abidin,Ab,Kadir,Robiah,Yunus,Mohd,Taufiq,Ishak,Zaini,Yaakub 대한전기학회 2016 Journal of Electrical Engineering & Technology Vol.11 No.3

        In this paper, a study is carried out to investigate the dielectric, physical and chemical properties of Palm Oil (PO) and Coconut Oil (CO) under open thermal ageing condition. The type of PO used in this study is Refined Bleached and Deodorized Palm Oil (RBDPO) Olein. The ageing experiment was carried out at 85 °C and 115 °C for 1, 3, 5, 7 and 14 days. Several parameters were measured such as AC breakdown voltage, dielectric dissipation factor, relative permittivity, resistivity, viscosity, moisture and acidity throughout the ageing duration. Based on the study, it is found that there are no significant changes on the AC breakdown voltages and relative permittivities for both RBDPO and CO. At ageing temperature of 115°C, there are clear reduction trends of dielectric dissipation factor for CO and resistivities for most of RBDPO. On the other hand, no clear trends are observed for viscosities, moisture and acidities of RBDPO and CO throughout the ageing duration.

      • KCI등재SCOPUS

        Morphologies and separation characteristics of polyphenylsulfone-based solvent resistant nanofiltration membranes: Effect of polymer concentration in casting solution and membrane pretreatment condition

        Nur,Aimie,Abdullah,Sani,Woei,Jye,Lau,Ahmad,Fauzi,Ismail 한국화학공학회 2015 Korean Journal of Chemical Engineering Vol.32 No.4

        The performance of polyphenylsulfone (PPSU) solvent resistant nanofiltration (SRNF)-based flat sheetmembranes prepared from phase inversion method was investigated by varying the concentration of polymer in thedope solution and condition of membrane pretreatment process. The membrane properties were characterized by SEM,FTIR, AFM and contact angle goniometer, while their performance was evaluated by measuring methanol flux andrejection of different molecular weight of dyes (ranging from 269 to 1,470 g/mol) in methanol. The experimental resultsshowed that the polymer concentration has great impact not only on the final membrane morphology but also its separationcharacteristics. Increasing polymer concentration from 17 to 25wt% tended to suppress finger-like structure andmore pear-like pores were developed, causing methanol flux to decrease. This can be explained by the decrease inmolecular weight cut off (MWCO) of the membrane prepared at high polymer concentration. With respect to theeffect of membrane pretreatment conditions, the rejection of membrane was negatively affected with longer immersionperiod in methanol solution prior to filtration experiment. The variation in membrane rejection can be attributed tothe rearrangement of the polymer chain, which results in membrane swelling and/or change of membrane surfacehydrophilicity.

      • In vitro antimicrobial activity of Cassia auriculata

        Nur,,I,Elysha,Somchit,,MN,Reezal,,I,Zuraini,,A,Mutalib,,AR Kyung Hee Oriental Medicine Research Center 2005 Oriental pharmacy and experimental medicine Vol.5 No.1

        Ethanol and aqueous extracts of Cassia auriculata were tested in vitro against fungi (Candida albicans and Microsporum canis) and bacteria (Escherichia coli, Salmonella enteriditis, Staphylococcus aureus and Bacillus subtilis). M. canis showed dose-dependent susceptibility only towards ethanol leaf and bark extracts. C. albicans, were resistant to all types of plant extracts. Results were statistically smaller to antifungal drug ketoconazole and miconazole at equivalent concentration. Both ethanol and aqueous extracts of Cassia auriculata leaves and barks exhibit antibacterial activity against S. aureus and only the ethanol extracts of leaf and bark were detected against Bacillus subtilis. The results were compared to antibacterial drugs chloramphenicol, ampicillin, penicillin G, and enrofloxacin. The antibacterial activity was statistically similar to penicillin G. Based on the current findings, it can be concluded that this plant has antimicrobial activity, which is as potent as standard antimicrobial drugs.

      • SCOPUSSCIEKCI등재

        Zygoma-gear appliance for intraoral upper molar distalization

        Nur,,Metin,Bayram,,Mehmet,Pampu,,Alper The Korean Association Of Orthodontists 2010 대한치과교정학회지 Vol.40 No.3

        본 증례보고에서는 골격성 II급 관계를 보이는 16세 여자 환자에서 zygomatic-anchorage plates (Zygoma-gear Appliance, ZGA)를 이용하여 상악 구치를 후방 이동시킴 구내 장치를 소개하고자 한다. 이 장치는 양측성 zygomatic anchorage plates, inner-bow와 강한 힘을 내는 구강 내 고무줄로 구성되어 있다. 3개월 내에 상악 구치의 후방 이동이 이루어 졌으며, 측모 두부 방사선 사진 분석 결과, 상악 구치는 4mm 후방 이동, $4.5^{\circ}$ 후방 경사되었다. 본 연구 결과 ZGA 장치를 이용해 고정원 소실 없이 단기간에 상악 구치의 후방 이동이 효과적으로 이루어졌음이 확인되었으며, 이를 통해 구치의 후방 견인이 요하는 증례에서 구외 장치 대신 사용될 수 있을 것으로 판단된다. The aim of this report is to present an intraoral upper molar distalization system supported with zygomatic anchorage plates (Zygoma-gear Appliance, ZGA). This system was used for a 16-year-old female patient with a Class II molar relationship requiring molar distalization. The system consisted of bilateral zygomatic anchorage plates, an inner-bow and heavy intraoral elastics. Distalization of the upper molars was achieved in 3 months and the treatment results were evaluated from lateral cephalometric radiographs. According to the results of the cephalometric analysis, the maxillary first molars showed a distalization of 4 mm, associated with a distal axial inclination of $4.5^{\circ}$. The results of this study show that an effective upper molar distalization without anchorage loss can be achieved in a short time using the ZGA. We suggest that this new system may be used in cases requiring molar distalization in place of extraoral appliances.

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