scholarly journals ISOMERISM: IS THERE MISCONCEPTION?

2020 ◽  
Vol 9 (1) ◽  
pp. 113-126
Author(s):  
Syahrial Syahrial ◽  
Sri Winarni
Keyword(s):  
Learning Strategy ◽  
Student Reasoning ◽  
Chemistry Teachers ◽  
Research Results ◽  
Spatial Understanding ◽  
Concept Logic ◽  
The Right ◽  
Elaboration Process ◽  
Group 1 ◽  
Grade 11

Nine articles have been analyzed containing research results on misconceptions about isomerism. Analysis was conducted to examine the potential to causes emergence of the misconception. The analysis result are expected to be useful for teachers in learning for the same concepts. At least the teacher can avoid misconceptions that have happened before and innovate to find the right learning strategy. Isomerism can be categorized as a defined concept so that students are expected to be able to use rules for the purpose of classifying objects or events. The analysis showed 31 misconceptions experienced by grade 11 students to prospective chemistry teachers on isomerism concept. Thirty-one misconceptions are classified into three groups based on students' abilities needed to understand the concept of isomerism. The three groups are: (1) understanding the definition and application of rules; (2) spatial understanding; and (3) microscopic understanding. At this time only eleven misunderstandings were discussed, namely misunderstandings whose causes belong to the group (1). As an indicator caused misconception is inability of the sample to classify objects/events based on the attributes or characters indicated by the object/event. To teach a defined concept, it is recommended to use a strategy that contains detailed explanatory definitions and rules, examples and non-examples, and the elaboration process. In order to increase student reasoning, it is recommended to use a isomerism concept logic scheme

KEBIJAKAN MODERASI PIDANA MATI

2017 ◽  
Vol 10 (2) ◽  
pp. 193
Author(s):  
Mei Susanto ◽  
Ajie Ramdan
Keyword(s):  
Human Rights ◽  
Death Penalty ◽  
Capital Punishment ◽  
Criminal Code ◽  
Right To Life ◽  
Life Imprisonment ◽  
Research Results ◽  
Moderation Model ◽  
The Right

ABSTRAKPutusan Nomor 2-3/PUU-V/2007 selain menjadi dasar konstitusionalitas pidana mati, juga memberikan jalan tengah (moderasi) terhadap perdebatan antara kelompok yang ingin mempertahankan (retensionis) dan yang ingin menghapus (abolisionis) pidana mati. Permasalahan dalam penelitian ini adalah bagaimana kebijakan moderasi pidana mati dalam putusan a quo dikaitkan dengan teori pemidanaan dan hak asasi manusia dan bagaimana kebijakan moderasi pidana mati dalam RKUHP tahun 2015 dikaitkan dengan putusan a quo. Penelitian ini merupakan penelitian doktrinal, dengan menggunakan bahan hukum primer dan sekunder, berupa peraturan perundang-undangan, literatur, dan hasil-hasil penelitian yang relevan dengan objek penelitian. Penelitian menyimpulkan, pertama, putusan a quo yang memuat kebijakan moderasi pidana mati telah sesuai dengan teori pemidanaan khususnya teori integratif dan teori hak asasi manusia di Indonesia di mana hak hidup tetap dibatasi oleh kewajiban asasi yang diatur dengan undang-undang. Kedua, model kebijakan moderasi pidana mati dalam RKUHP tahun 2015 beberapa di antaranya telah mengakomodasi amanat putusan a quo, seperti penentuan pidana mati di luar pidana pokok, penundaan pidana mati, kemungkinan pengubahan pidana mati menjadi pidana seumur hidup atau penjara paling lama 20 tahun. Selain itu masih menimbulkan persoalan berkaitan dengan lembaga yang memberikan pengubahan pidana mati, persoalan grasi, lamanya penundaan pelaksanaan pidana mati, dan jenis pidana apa saja yang dapat diancamkan pidana mati.Kata kunci: kebijakan, KUHP, moderasi, pidana mati. ABSTRACTConstitutional Court’s Decision Number 2-3/PUU-V/2007, in addition to being the basis of the constitutionality of capital punishment, also provides a moderate way of arguing between retentionist groups and those wishing to abolish the death penalty (abolitionist). The problem in this research is how the moderation policy of capital punishment in aquo decision is associated with the theory of punishment and human rights and how the moderation policy of capital punishment in the draft Criminal Code of 2015 (RKUHP) is related with the a quo decision. This study is doctrinal, using primary and secondary legal materials, in the form of legislation, literature and research results that are relevant to the object of analysis. This study concludes, firstly, the aquo decision containing the moderation policy of capital punishment has been in accordance with the theory of punishment, specificallyy the integrative theory and the theory of human rights in Indonesia, in which the right to life remains limited by the fundamental obligations set forth in the law. Secondly, some of the modes of moderation model of capital punishment in RKUHP of 2015 have accommodated the mandate of aquo decision, such as the determination of capital punishment outside the main punishment, postponement of capital punishment, the possibility of converting capital punishment to life imprisonment or imprisonment of 20 years. In addition, it still raises issues regarding the institutions that provide for conversion of capital punishment, pardon matters, length of delay in the execution of capital punishment, and any types of crime punishable by capital punishment. Keywords: policy, criminal code, moderation, capital punishment.

scholarly journals A tissue-engineered urinary conduit in a porcine urinary diversion model

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Arkadiusz Jundziłł ◽  
Piotr Kwieciński ◽  
Daria Balcerczyk ◽  
Tomasz Kloskowski ◽  
Dariusz Grzanka ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Urinary Diversion ◽  
Porcine Model ◽  
Histological Evaluation ◽  
Metabolic Complications ◽  
Group 3 ◽  
Group 2 ◽  
The Right ◽  
Group 1

AbstractThe use of an ileal segment is a standard method for urinary diversion after radical cystectomy. Unfortunately, utilization of this method can lead to numerous surgical and metabolic complications. This study aimed to assess the tissue-engineered artificial conduit for urinary diversion in a porcine model. Tissue-engineered tubular polypropylene mesh scaffolds were used for the right ureter incontinent urostomy model. Eighteen male pigs were divided into three equal groups: Group 1 (control ureterocutaneostomy), Group 2 (the right ureter-artificial conduit-skin anastomoses), and Group 3 (4 weeks before urostomy reconstruction, the artificial conduit was implanted between abdomen muscles). Follow-up was 6 months. Computed tomography, ultrasound examination, and pyelogram were used to confirm the patency of created diversions. Morphological and histological analyses were used to evaluate the tissue-engineered urinary diversion. All animals survived the experimental procedures and follow-up. The longest average patency was observed in the 3rd Group (15.8 weeks) compared to the 2nd Group (10 weeks) and the 1st Group (5.8 weeks). The implant’s remnants created a retroperitoneal post-inflammation tunnel confirmed by computed tomography and histological evaluation, which constitutes urostomy. The simultaneous urinary diversion using a tissue-engineered scaffold connected directly with the skin is inappropriate for clinical application.

scholarly journals Teaching Media in the Teaching of Arabic Language/ Media Pembelajaran dalam Pembelajaran Bahasa Arab

2020 ◽  
Vol 1 (1) ◽  
pp. 49-64
Author(s):  
Damar Gemilang ◽  
Hastuti Listiana
Keyword(s):  
Language Learning ◽  
Learning Strategies ◽  
Learning Strategy ◽  
Cognitive Strategies ◽  
Arabic Language ◽  
Social Strategies ◽  
Library Studies ◽  
The Media ◽  
The Right ◽  
Learning Types

This article discusses the media of learning Arabic language, through library studies that focus on distributing material effectively to students without making them boring. The limited creations and variations in learning as well as the low ability of Arabic language maharah of students make the role of the media so important. The selection of media correctly, can improve the mastery of material skills, motivate, and stimulate students. Through library studies from journals, papers, and books on learning media for the Arabic curriculum which are then analyzed and concluded data will be obtained about learning media for the Arabic curriculum which is useful for teachers. There are several rules in determining the media that will be used by taking into account the direction and objectives of learning, types of learning strategies, understanding the characteristics of the media by the teacher, in terms of cost suitability, media readiness, quality, and environment to operate the media. In terms of functions related to sensing devices, the media are divided into visual media, audio media, and audiovisual media. Meanwhile, viewed from the viewpoint in Arabic and that maharah, the media can be grouped into learning media mufrodat, nahwu-shorof, and Arabic language skills consisting of media istima', qiro'ah, kitabah, and kalam. This can help academics in applying media correctly in the learning of the Arabic language curriculum.One of the elements of learning Arabic is the student's Arabic learning strategy. But there are still some students who have not found the right strategy for learning Arabic, because of a lack of knowledge about Arabic learning strategies, especially the Oxford model of language learning strategies. The purpose of this study was to describe the implementation of the Arabic language learning strategy for students in the Oxford model of Madrasah Ibitidaiyah Al Islam Kartasura students.This research is descriptive qualitative, as for the research site at Madrasah Ibitidaiyah Al Islam Kartasura. This research was conducted from March to June 2020. The subjects in this study were students of class V A at Madrasah Ibitidaiyah Al Islam Kartasura. The informants in this study were the fifth grade Arabic teachers at Madrasah Ibitidaiyah Al Islam Kartasura. Data collection methods used were interviews, observation and documentation.The conclusion of this study is that students use Arabic learning strategies in the Oxford model because there are indications that students are using their learning. The strategies used are memory strategies, cognitive strategies, compensation strategies, metacognitive strategies, affective strategies, and social strategies. The strategy that is often used by students is the memorial strategy.

Meta-analysis of the effects of mastery learning on students’ academic achievements in Nigeria

2018 ◽  
Vol 10 (4) ◽  
pp. 547-555
Author(s):  
Maxwell Okwudili Ede ◽  
Uwakwe Okereke Igbokwe
Keyword(s):  
Effect Size ◽  
Learning Strategy ◽  
Mastery Learning ◽  
Empirical Studies ◽  
Sampling Technique ◽  
Content Type ◽  
Research Results ◽  
Academic Achievements ◽  
Ex Post ◽  
The Mean

PurposeThe purpose of this paper is fivefold: to identify the various results of previous empirical studies on the effect of mastery learning and students achievement in Nigeria schools; determine the effect size for each of the studies examined; determine the mean effect size of the overall studies examined; find out the mean effect size of studies that examined the effect of gender on academic achievement in mastery learning strategy; and determine the mean effect size of studies that examined the effect of school locations on academic achievements using mastery learning strategy.Design/methodology/approachThis study adopted survey research design using theex postfacto procedure. This study being meta-analytical used already existing data (research results). The sample of research reports included both published and unpublished research reports on the effects of mastery learning on students’ academic achievements in Nigeria between 1980 and 2016. The study adopted a purposive sampling technique in selecting the sample. This was to ensure that studies: were centered on mastery learning and students’ academic achievements; were carried out in Nigeria; appeared in published and unpublished literature between 1980 and 2016; have the statistical values of the research results of each independent variable to be considered (e.g.t-test values,χ2values and correlation values).FindingsThe study revealed that the mean effect size for all the studies was 0.536, indicating a positive mean effect size. The strategy, thus, has a significant effect on students’ achievements. School location, also, did not mediate in the use of the strategy.Practical implicationsBased on the findings of this study, the following recommendations were made: teachers should use this teaching strategy to enhance students’ achievements in difficult concepts in different subject areas. Since the result of this study has shown that the strategy has positive and large effect size, government and school proprietors should, with the collaboration of higher institutions concerned with teacher education, endeavor to organize seminars and workshops to serving teachers to enable them embrace effectively the principles and processes of implementing the strategy in the classroom. Since the result of this study has established the size of the effect of mastery learning strategy on the academic achievements, subsequent researchers should no longer direct their efforts in determining its effects on academic achievements but on the ways of improving the use of the strategy in teaching at all levels of education.Originality/valueAvailable literature has shown that though most previous research findings revealed that mastery learning approach has an effect on academic achievements of students, no efforts have been made toward resolving the inconsistencies of those results by integrating them and establishing the extent of the effect of the strategy on academic achievements. This study, therefore, was designed to fill these gaps created by the non-existence of integrated studies on effects of mastery learning and academic achievements of students in Nigerian schools.

Free airtime of election committees in Poland compared with similar solutions in other countries. The attitude of Poles to free election broadcasts in the Polish public media

2020 ◽  
Vol 18 (1) ◽  
pp. 227-237
Author(s):  
Agnieszka Łukasik-Turecka
Keyword(s):  
Likert Scale ◽  
Election Campaign ◽  
Survey Questionnaire ◽  
Election Campaigns ◽  
Appropriate Use ◽  
Research Results ◽  
The Public ◽  
Public Media ◽  
Similar Solutions ◽  
The Right

The principle of equal electoral opportunities is implemented, inter alia, by allocating free airtime to political entities. In Poland, like in many other countries, the authorized committees have the right to use the public media’s airtime free of charge during election campaigns. The present article’s objective is to show the Polish solutions in this domain compared with the regulations in other countries and to present the research results and their analysis concerning Poles’ attitude to free election broadcasts – including their assessment of the broadcasts as a source of knowledge about candidates and parties taking part in the election campaign. The studies were carried out based on the survey questionnaire, which was compiled using the five-level Likert scale. The sample was selected by the stratifiedquota method (N = 971). The conclusions resulting from the survey suggest the need to retain the regulation that enables political entities in Poland to use free election broadcasts during election campaigns. At the same time, they point out that it is necessary to seek more advantageous forms and content to put airtime to appropriate use during the campaign period.

Dexmedetomidine elevates the lethal dose threshold of bupivacaine in rats: A dosing study

2019 ◽  
Vol 39 (3) ◽  
pp. 365-373
Author(s):  
L Pan ◽  
Y Zhang ◽  
Y He ◽  
Z Chen ◽  
S Wang ◽  
...  
Keyword(s):  
Femoral Vein ◽  
Lethal Dose ◽  
Control Group ◽  
Sprague Dawley ◽  
Dose Threshold ◽  
Sd Rats ◽  
Group 12 ◽  
Group 3 ◽  
The Right ◽  
Group 1

Dexmedetomidine (DMED), an alpha-2 adrenoreceptor agonist, has been widely used in regional anesthesia procedures. However, the effect of DMED on local anesthetic cardiotoxicity has not been well delineated. This study consisted of two experiments. In experiment A, 42 Sprague–Dawley (SD) rats were randomly divided into 6 groups ( n = 7), each group was pretreated with DMED 0 μg kg−1 (D0 group), 1 μg kg−1 (D1 group), 3 μg kg−1 (D3 group), 6 μg kg−1 (D6 group), 12 μg kg−1 (D12 group), and 24 μg kg−1 (D24 group), administered through the right femoral vein. In experiment B, 20 SD rats were randomly divided into 4 groups ( n = 5), such as control group, DMED group, yohimbine (YOH) group, and DMED + YOH group. Each subgroup in experiment B was also pretreated similarly as in experiment A. After pretreatment of rats as described above (in experiments A and B), bupivacaine 2.5 mg kg−1 min−1 was infused to induce cardiac arrest. In experiment A, the lethal dose threshold of bupivacaine and plasma bupivacaine concentration in D3 and D6 group were higher than the other groups. In experiment B, there was no interaction between DMED and YOH in lethal dose threshold, arrhythmia time, plasma concentration of bupivacaine, and myocardial content of bupivacaine. DMED doses of 3–6 μg kg−1 elevated the lethal dose threshold of bupivacaine without involvement of the alpha-2 adrenoceptors.

Systemic to Pulmonary Collaterals in Extremely Low Birth Weight Infants: Incidence, Clinical Significance, and Hemodynamic Features

2019 ◽  
Author(s):  
Cynthia Hayek ◽  
Rowena Cayabyab ◽  
Ima Thompson ◽  
Mahmood Ebrahimi ◽  
Bijan Siassi ◽  
...  
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Clinical Outcomes ◽  
Left Ventricular ◽  
Extremely Low Birth Weight ◽  
Low Birth Weight Infants ◽  
Echocardiographic Parameters ◽  
Group 2 ◽  
The Right ◽  
Group 1

Abstract Objective To determine the incidence of systemic to pulmonary collaterals (SPCs) in extremely low birth weight infants and to assess its clinical and hemodynamic significance beyond the neonatal period. Study Design Retrospective cohort study was conducted on 61 infants with echocardiogram performed at the time of discharge to determine the presence of SPC and to measure the right and left ventricular outputs and left atrium to aortic ratio. We compared two groups: small or no SPC (Group 1) to moderate or large SPC (Group 2) on demographics, clinical outcomes, and echocardiographic parameters. Results Sixty-one infants were included. The incidence of SPC was 57%; 21% of infants had moderate or large shunts and 31% had small SPC. Demographics, clinical outcomes, and echocardiographic parameters were not significantly different between small or no SPC and moderate to large SPC. Conclusion More than half of the infants had SPC. The size of the shunt did not affect the clinical outcomes nor the echocardiographic parameters measured. All infants had cardiac output above the normative mean.

Independent Processing of the Temporal and Ordinal Structure of Movement Sequences

2003 ◽  
Vol 90 (6) ◽  
pp. 3725-3735 ◽  
Author(s):  
Fredrik Ullén ◽  
Sara L. Bengtsson
Keyword(s):  
Motor Control ◽  
Implicit Learning ◽  
Index Finger ◽  
Temporal Structure ◽  
Transfer Effects ◽  
Fast Learning ◽  
Group 2 ◽  
The Right ◽  
Temporal Sequences ◽  
Group 1

We investigated if the temporal and ordinal structures of sequences can be represented and learned independently. In Experiment 1, subjects learned three rhythmic sequences of key presses with the right index finger: Combined consisted of nine key presses with a corresponding temporal structure of eight intervals; Temporal had the temporal structure of Combined but was performed on one key; Ordinal had the ordinal structure of Combined but an isochronous rhythm. Subjects were divided into two groups. Group 1 first learned Combined, then Temporal and Ordinal; Group 2 first learned Temporal and Ordinal, then Combined. Strong transfer effects were seen in both groups. In Group 1, having learned combined facilitated the learning of the temporal ( Temporal) or ordinal ( Ordinal) sequence alone; in Group 2, having learned Temporal and Ordinal facilitated the learning of Combined, where the two are combined. This supports that subjects had formed independent temporal and ordinal representations. In Experiment 2, we investigated if these can be learned independently. Subjects repeatedly reproduced sequences with fixed temporal and random ordinal structure; random temporal and fixed ordinal structure; and random temporal and ordinal structures. Temporal and ordinal learning was seen only in the first and second sequences, respectively. In summary, we provide evidence for the existence of independent systems for learning and representation of ordinal and temporal sequences and for implicit learning of temporal sequences. This may be important for fast learning and flexibility in motor control.

scholarly journals THE ROLE OF METACOGNITION STRATEGY TO ENHANCE READING COMPREHENSION

2021 ◽  
Vol 1 (3) ◽  
pp. 206-213
Author(s):  
Fitrani Dinda Fadilah ◽  
Natashah Mohd Ridwan ◽  
Nurma Dianti Putri ◽  
Suhendri Prayoga ◽  
Muhammad Taufik Ihsan
Keyword(s):  
Creative Thinking ◽  
Learning Strategy ◽  
Thinking Skills ◽  
Metacognitive Strategies ◽  
Critical Thinking Skills ◽  
Metacognitive Strategy ◽  
Thought Processes ◽  
Higher Order Thinking Skills ◽  
The Right

Metacognitive strategy is a learning strategy based on the metacognitive concept put forward by John Flavell that defines Metacognitive as the ability of individuals to manage their cognitive processes independently. By applying metacognitive strategies in the learning process, students are trained to get used to planning, controlling, and evaluating their thought processes in learning so that they are increasingly honed critical thinking skills as well as creative thinking skills. This ability is important to master so that students can have a sense of responsibility towards their own learning. This metacognitive reading framework should be familiar to teachers who integrate the process before reading, at the time of reading, and after reading on the process when teaching learners effective understanding strategies. Teachers are also encouraged to use metacognitive strategy models, as students can learn how to use them independently. In this article, the data were obtained from literature of study review and from other document analysis. Based on the study, metacognitive strategies help learners to use the right strategies in solving problems in reading and help students to stop their dependency using a dictionary. Metacognitive strategies train a person in learning by putting forward Higher Order Thinking Skills in reflective learning schemes

scholarly journals Post-COVID-19 syndrome: morpho-functional abnormalities of the heart and arrhythmias

2021 ◽  
Vol 26 (7) ◽  
pp. 4485
Author(s):  
M. V. Chistyakova ◽  
D. N. Zaitsev ◽  
A. V. Govorin ◽  
N. A. Medvedeva ◽  
A. A. Kurokhtina
Keyword(s):  
Pulmonary Artery ◽  
Right Ventricular ◽  
Cardiac Arrhythmias ◽  
Myocardial Strain ◽  
Left Ventricular ◽  
Upper Respiratory Tract ◽  
Regional Strain ◽  
Group 3 ◽  
The Right ◽  
Group 1

Aim. To study the myocardial morpho-functional abnormalities, the incidence and nature of cardiac arrhythmias in patients 3 months after the coronavirus disease 2019 (COVID-19).Material and methods. The study included 77 patients (mean age, 35,9 years) treated for coronavirus infection, which underwent echocardiography and 24-hour Holter monitoring 3 months after COVID-19. The patients were divided into 3 groups: group 1 — 31 patients with upper respiratory tract involvement; group 2 — 27 patients with bilateral pneumonia (CT grade 1, 2), 3 — 19 patients with severe pneumonia (CT grade 3, 4). Statistical processing was carried out using Statistica 10.0.Results. According to echocardiography, the peak tricuspid late diastolic velocity and isovolumetric contraction time in all groups increased (P<0,001). The tricuspid and mitral Em/Am ratio decreased depending on the disease severity. In group 3, the right ventricular and atrial size increased (P<0,001). The pulmonary artery systolic pressure, left atrial volume in patients of the 2nd and 3rd groups was higher than in the control one (P<0,001). In group 1 and 2 patients, the regional strain in basal and basal/middle segments decreased, respectively, while, in group 3, not only regional but also global left ventricular (LV) strain decreased (P<0,001). In all groups, cardiac arrhythmias and pericardial effusion were found. The relationship was established between coronavirus activity and the structural and functional myocardial parameters (P<0,001).Conclusion. Cardiovascular injury 3 months after COVID-19 was found in 71%, 93%, and 95% of patients with mild, moderate and severe course. In mild course patients, a decrease in regional myocardial strain in LV basal segments, signs of past pericarditis, and various cardiac arrhythmias were noted. In patients of moderate severity, these changes were more pronounced and were accompanied by an additional decrease in regional strain in LV middle segments, impaired right ventricular diastole and increased pulmonary artery pressure. In severe patients, in addition to the above changes, dilatation of the right heart and inferior vena cava was recorded, as well as LV diastolic and global systolic function decreased.

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