scholarly journals The ability to solve physics problems in symbolic and numeric representations

2022 ◽  
Vol 19 (1 Jan-Jun) ◽  
Author(s):  
Umrotul Umrotul ◽  
Aurelia Astria L. Jewaru ◽  
Senot Kusairi ◽  
Nugroho Adi Pramono

The aim of this study is to analyze the ability of students to solve the problems of linear motion kinematics expressed in symbolic and numeric representation. Research was survey with cross-sectional design. Research subjects included 26 first year undergraduate students in physics at one of the State Universities in Malang which was consisted of 10 men and 16 women. The research instrument was open-ended test of linear motion kinematics problems expressed in symbolic and numeric representations with a reability of 0,807 The research data were analyzed using descriptive and non-parametric inferential statistics. The results showed that the ability of students to solve linear motion kinematics problems in both symbolic and numeric representation was medium. Students had difficulty solving physical problems in both symbolic and numeric representations. It was also found that the problems of linear motion kinematics in symbolic representations were more difficult for students to solve than numeric representations. The study suggested further research to explore the causes of student difficulties more authentically, e.g. by interviewing or thinking aloud.

2017 ◽  
Vol 33 (9) ◽  
pp. 453
Author(s):  
Mungkasip Mungkasip ◽  
Fitri Haryanti ◽  
Akhmadi Akhmadi

The quality of caregiver and children under five interaction in YogyakartaPurposeThe purpose of this study was to determine factors related to the quality of caregiver interactions with children under five in Yogyakarta. MethodsThis study used a cross sectional design. Research subjects were all caregivers who have children aged 1.5 years to 4.5 years who have received cadre assistance in the work area of Mantrijeron Puskesmas Yogyakarta. Research subjects were recruited using total sampling techniques. The instrument used was questionnaire and PICCOLO observation sheet. Data analysis was done by Chi-Square test.ResultsThere was a significant correlation between knowledge factor and quality of domain interaction. There was no significant correlation between age factor, occupation, mental status, and income with interaction quality. ConclusionCaregivers are expected to improve the quality of interaction and communication with children, have sensitivity and responsiveness in practicing specific care, such as feeding, sensitivity to sick children, and able to develop each other's cognitive language.


2017 ◽  
Vol 3 (2) ◽  
pp. 58
Author(s):  
Zulhaini Sartika A. Pulungan ◽  
Edi Purnomo ◽  
Arni Purwanti A.

Hospitalization can cause anxiety and stress at all age levels. The cause of anxiety is influenced by many factors, both from the officer factor (nurses, doctors and other health personnel), the new environment, and the accompanying family during the treatment. Children sometimes perceive hospitalization as punishment so that children will feel shame, guilt, or fear. This leads to aggressive reactions such as anger and rebellion, verbal expression by saying angry words, not cooperating with nurses, thus affecting the treatment process while in hospital. The present study aimed at investigating the effect of hospitalization on anxiety levels of toddler in Puskesmas Tampa Padang. This research is an descriptive research with cross sectional design. Research subjects taken by purposive sampling counted 63 people. The data were analyzed using fisher's exact test. The results showed that hospitalization influenced toddler child's anxiety level (p 0.005). It is expected that health workers continue to provide good services and continue to maintain communication to children and families so that children feel comfortable during the process of hospitalization.


Author(s):  
Subandrate Subandrate ◽  
Mia Esta Poetri Afdal Faisal ◽  
Nurul Windi Anggraini ◽  
Sadakata Sinulingga

Background<br />Maternal mortality rate is still a health problem in Indonesia. One major contributor to maternal mortality rate in Indonesia is preeclampsia. One widely accepted theory is that preeclampsia is caused by oxidative stress. Placental hypoxia or ischemia among preeclampsia patients is thought to be the cause of the formation of free radicals such as malondialdehyde (MDA), which decreases endogenous antioxidants such as glutathione (GSH). This study aims to ascertain the difference in plasma malondialdehyde and glutathione levels between healthy and preeclamptic pregnant women.<br /><br />Methods<br />This was an observational analytic study of cross sectional design. Research subjects were 30  normal (healthy) pregnant women (NP), and 30 pre-eclamptic pregnant (PE) women. The measurement of plasma MDA and GSH levels was done at the Biochemistry and Molecular Biology laboratories, Faculty of Medicine, Sriwijaya University using Sigma-Aldrich MDA and GSH assay kits. Mann Whitney test was used to analyze the data. <br /><br />Results<br />Subjects aged &gt;35 years, with age of gestation &gt;35 weeks and multipara was significantly higher in the PE group compared to the NP group (p=0.016; p=0.01 and p=0.36; respectively). MDA level was significantly higher in the PE group than in the NP group (p=0.002). In contrast, GSH level was significantly lower in the PE group than in the NP group (p=0.003).<br /><br />Conclusion<br />MDA and GSH may reflect vascular complications of PE, and the ensuing increases in lipid peroxidation may play important pathogenic roles.


RSBO ◽  
2016 ◽  
Vol 12 (1) ◽  
pp. 41 ◽  
Author(s):  
Elisabete Rabaldo Bottan ◽  
Iara Fiorentin Comunello ◽  
Constanza Marín ◽  
Eduardo Mazzetti Subtil

Introduction and Objective: To evaluate the level of knowledge about oral cancer of students attending public school in one city of Santa Catarina (Brasil). Material and methods: A descriptive cross-sectional study, using primary data collection. Students of last year of elementary school and first year of high school, enrolled in public schools in the city of Itajaí (SC), in 2012, were the target population. The non-probability sample was obtained by convenience. Data were collected through a self-administered questionnaire structured with 13 questions divided into three fields. The level of knowledge was made based on pre-established scores. Results: 1149 instruments were analyzed (80.8% of the target population). The average age of the group was 15.5 years and 54.5% were female. The majority (78%) never had received information about oral cancer. Only 27.9% had cognizance about self-examination of the oral cavity. With regard to knowledge, 87.5% classified as unsatisfactory. For most issues the cognitive field did not identify a significant correlation between knowledge and the variables gender and education. When asked if they would like to participate in educational and preventive activitiesabout oral cancer and other issues related to health, 72.6% expressed interest. Conclusion: The group did not have adequate knowledge on the subject of oral cancer. Facing this reality, and the positive attitude of respondents, the researchers designed and offered an educational program to the research subjects.


2018 ◽  
Vol 11 (1) ◽  
Author(s):  
Nasiatul Aisyah Salim

ABSTRACTBackground: The competitive and dynamic market conditions in hospitals need to understand market structure and develop a relationship with various actors. Without trust, a relationship will not last in the long term. An important foundation in a relationship is trust. In addition, high levels of trust and commitment can maintain customer and organizational profitability. Objective: To know the influence of trust on customer commitment on skin care service of PKU Muhammadiyah Hospital Yogyakarta Methods: Type of analytic research with cross sectional analytic design. Research subjects were 100 respondents. The data were collected by questionnaire. Data were analyzed by simple linear regression.Result: indicates that there is an influence between trust on commitment due to significant value  (p) 0,000 < 0.05. The value of R 2 of 0.421 which means that the commitment can be explained by the confidence variable of 42.1%. While the remaining 57.9 % is explained by other variables. Conclusion: Trust has a significant effect on customer commitment. So that the higher the customer's trust will be the higher the customer commitment on skin care service at RS PKU Muhammadiyah Yogyakarta


2020 ◽  
Vol 5 (1) ◽  
pp. 343
Author(s):  
Attiya Istarini ◽  
Yuliarni Syafrita ◽  
Restu Susanti

<p><strong><em>Background</em></strong><em>: Parkinson's disease (PD) is a chronic neurodegenerative disease that manifests as movement disorders. Based on motor symptoms, PD is classified into subtypes of tremor and postural instability gait disorders (PIGD). The motor symptoms subtype is a predictor of disease progression, therapeutic response, and quality of life for Parkinson's patients. The purpose of this study is to identify some  factors that influence motor symptoms in Parkinson's disease.</em><strong><em>Methods:</em></strong><em> This research use cross sectional design. Samples were selected by consecutive sampling method that met the inclusion and exclusion criteria. Research subjects were 58 people. Statistical analysis using SPSS. p values &lt;0.05 were considered statistically significant.</em><strong><em>Results:</em></strong><em> This research include 58 patients, 55.2% were men with range of age 63.5 ± 8.5 years old. The mean age at onset was 57.9 ± 9.5 years and duration of disease 6.1 ± 4.6 years. Motor symptoms 53.4% dominant tremor. There was a significant relationship between disease stage and motor symptom subtypes (p &lt;0.001). There is no relationship between the patient's age, age at onset and duration of the disease with motor symptom subtypes.</em><strong><em>Conclusions:</em></strong><em> There is a relationship between disease stage and motor symptom. The patient's age, age at onset and duration of the disease are not related to the motor symptoms of Parkinson's patients.</em></p>


2020 ◽  
Vol 16 (2) ◽  
pp. 155
Author(s):  
Amalia Nadiasari ◽  
Diana Tri Ratnasari ◽  
Masfufatun Masfufatun

Abstract: Superficial dermatomycosis is a skin, nail and hair infection caused by fungal pathogen. Based on the pathogen, this infection can be divided into dermatophytosis, pityriasis versicolor and superficial candidiasis. The rapid and proper diagnosis is necessary to determine the initial theraphy and prevent the treatment delay. Superficial dermatomycosis diagnosis can be performed using anamnesis, physical examination or supporting investigation. The routine investigation method commonly use Potassium Hydroxide (KOH) because the KOH method is easy to be performed, rapid, simple and affordable. Chicago Sky Blue (CSB) is a dye to give a better color contrast to the fungi so the fungi would be easier to be detected. Objectives of this research is to observe the sensitivity and specifity difference of Chicago Sky Blue (CSB) dye and Potassium Hydroxide (KOH) methods for Superficial Dermatomycosis. The research was performed using cross sectional design analitical obsevation with 30 research subjects. The subjects consist of 15 superficial dermatomycosis patients and 15 non-superficial dermatomycosis patients. The samples were taken from the patients lesion swabs. The samples were checked using KOH and CSB, then observed by the medical analyst. The superficial dermatomycosis samples consist of mostly dermathophytosis (53.33%), then pityriasis versicolor (26.67%) and superficial candidiasis (20%). The sensitivity and specificity of KOH were 86.67% and 100%, respectively. The sensitivity and specificity of CSB were 93.33% and 100%, respectively. The CSB dye method has a higher sensitivity than KOH. The fungal elements are nicely dyed and more easily detected using CSB dye.  Keywords: KOH, Chicago Sky Blue, sensitivity, specificity, superficial dermatomycosis


2019 ◽  
Vol 33 (4) ◽  
pp. 780-791
Author(s):  
Deneb Elí Magaña Medina ◽  
Norma Aguilar Morales ◽  
Ángel Alberto Valdés Cuervo ◽  
Lizeth G. Parra-Pérez

PurposeThe purpose of this paper is to analyze the relationship among undergraduate students’ perception of faculty members’ and institutional support, undergraduate students’ appreciation of scientific skills and undergraduate students’ research endeavors.Design/methodology/approachA structural model was calculated to relate the variables. The sample included 1,882 undergraduate students from a State University located in the Southeast of Mexico. Undergraduate students came from different fields, and all of them that had taken at least 60 percent of their curricular credits.FindingsThe structural model suggests that faculty members’ and institutional support are positively related to undergraduate students’ appreciation of scientific skills and undergraduate students’ research endeavors. The findings suggest faculty members’ and institutional support are key factors to develop scientific research in undergraduate students. Therefore, the researchers argue that science programs taught in Mexican colleges and universities must endorse supportive practices among faculty members and institutions.Research limitations/implicationsThe cross-sectional design does not allow to set clear causal relationships among the explored variables. In addition, the sample included only one public university. Thus, further empirical research with research participants from different universities across the country is suggested. These improvements may enhance the strength of the proposed theoretical model.Practical implicationsCurrently, there are a plethora of studies looking at students’ attitudes toward science. Those studies have also discussed the conditions and contexts that influence research practice among undergraduate students. Nonetheless, there are no studies known by the authors that include the set of variables and relationships considered in the present study.Originality/valueDespite the plethora of studies looking at several conditions and contexts influencing undergraduate students’ attitudes toward science, no studies known by the authors have included the set of variables and relationships considered in the present study.


2015 ◽  
Vol 4 (4) ◽  
pp. 284
Author(s):  
Salmah Orbayinah ◽  
Laksmi Putri Utami

Unawareness of the roles and competencies of other health professions has led to many medical and medication errors in the treatment of patients in the hospital. It is considered important to give Interprofessional Education (IPE) to students at pre-clinic and clinical stage in order to have a good understanding about roles of other health professionas. IPE is an interprofessional collaborative learning to support promotive, preventive, curative, rehabilitative and other approches related to health aspect. Perception is among the most important and highly needed skill in the implementation of IPE. This research aimed to determine the effect of IPE learning toward the perception among the students in Faculty of Medicine and Health Science of Universitas Muhammadiyah Yogyakarta (FMHS UMY). This is an observational study adopting a cross sectional design. The sample of students was collected through purposive sampling technique. A number of 94 students met the inclusion criteria, comprised of 21 students of Medical Profession Education, 25 of Dentistry Profession Education, 25 of Nursing Profession Education and 21 Undergraduate students of Pharmacy. Samples were given questionnaire of<em> Interdiciplinary Education Perception Scale</em>. Comparative test<em> </em>was done by<em> Kruskall-Wallis test.</em> From 94 students of FMHS, 75.5% had good perception toward IPE. No significant differences appeared in perception (p=0.285) among the students of FMHS UMY. The <em>Interprofessional Education</em> (IPE) had significant effects toward the perception among the students of FMHS UMY.


2015 ◽  
Vol 12 (2) ◽  
pp. 62 ◽  
Author(s):  
Ninna Rohmawati ◽  
Ahmad Husein Asdie ◽  
Susetyowati Susetyowati

Background: Psychological factors such as anxiety have significant contributions in determining dietary intake and nutritional status of elderly. Prevalence of malnutrition in elderly has achieved significant level.Objective: To determine the correlation between anxiety level with dietary intake and nutritional status of elderly in Yogyakarta municipality.Method: This research was observational with cross sectional design. Subjects were elderly in Yogyakarta municipality who fulfilled inclusion criteria. Research subjects consisted of 214 people. Anxiety level was measured with trait-manifest anxiety scale (T-MAS) form, dietary intake with semi-quantitative food frequency questionnaire (SQFFQ) method, and nutritional status was determined based on body mass arm span (BMA). Data were analyzed with Chi-Square test and multiple logistic regression.Results: A percentage of 26.2% subjects had moderate anxiety level. Most dominant factors that influenced anxiety level was sex (OR=3.37). Bivariate analysis showed a significant correlation between anxiety level and nutritional status (p<0.05), subjects with moderate anxiety level were more likely to have higher nutritional status (OR=3.54) and lower nutritional status (OR=2.29). Significant correlation was found between moderate anxiety level with excessive dietary intake (p<0.001; OR=6.22). Significant correlation was also found between dietary intake with nutritional status (p<0.05), subjects with excessive dietary intake were more likely to have higher nutritional status (OR=6.15).Conclusion: Significant correlation was found between anxiety level and nutritional status. Significant correlation was also found between anxiety level and dietary intake, and significant correlation was found between dietary intake and nutritional status.


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