scholarly journals The dependence of intrinsic alignment of galaxies on wavelength using KiDS and GAMA

2019 ◽  
Vol 622 ◽  
pp. A90 ◽  
Author(s):  
Christos Georgiou ◽  
Harry Johnston ◽  
Henk Hoekstra ◽  
Massimo Viola ◽  
Konrad Kuijken ◽  
...  

The outer regions of galaxies are more susceptible to the tidal interactions that lead to intrinsic alignments of galaxies. The resulting alignment signal may therefore depend on the passband if the colours of galaxies vary spatially. To quantify this, we measured the shapes of galaxies with spectroscopic redshifts from the GAMA survey using deep gri imaging data from the KiloDegree Survey. The performance of the moment-based shape measurement algorithm DEIMOS was assessed using dedicated image simulations, which showed that the ellipticities could be determined with an accuracy better than 1% in all bands. Additional tests for potential systematic errors did not reveal any issues. We measure a significant difference of the alignment signal between the g, r and i-band observations. This difference exceeds the amplitude of the linear alignment model on scales below 2 Mpc h−1. Separating the sample into central/satellite and red/blue galaxies, we find that the difference is dominated by red satellite galaxies.

2020 ◽  
Vol 4 (1) ◽  
pp. 59-67
Author(s):  
Eka Swarnadi Luh ◽  
Ketut Budi Susrusa ◽  
Ida Ayu Listia Dewi

LPDs are non-bank financial institutions that are regulated and approved by the Regional Regulations of the Province of Bali. The management of LPD is fully handed over to the relevant Pakraman village. In line with the rapid development of LPDs, it turns out that on the other hand it shows diverse performance, so that LPDs need to pay attention to the level of product quality and customer interest in the products offered.            The purpose of the study was to determine the comparison of product quality and interest in saving at the Tajun Traditional Village LPD with the Traditional Village of Tegal. The number of samples from Tajun Adat Village LPD was 98 people and the LPD of Tegal Traditional Village was 84 people. The research data were analyzed by the Mann-Whitney Test. The results showed that there was a significant difference between the quality of the products of the Adat Village of Tajun LPD and the Traditional Village of Tegal. This difference is indicated by indicators of physical evidence, reliability, responsiveness and empathy. The product quality of Tajun Adat Village's LPD is better than the traditional village of Tegal. There is a significant difference between the interest in saving the traditional village of Tajun LPD and the traditional village of Tegal. The difference is in the indicator of confidence. Interest in Saving Tajun Indigenous Village LPD is higher than the Traditional Village of Tegal.


2021 ◽  
Author(s):  
Ziyang Chen ◽  
Kai-Ming Chen ◽  
Ying Shi ◽  
Zhao-Da Ye ◽  
Sheng Chen ◽  
...  

Abstract AimTo investigate the effect of orthokeratology (OK) lens on axial length (AL) elongation in myopia with anisometropia children.MethodsThirty-seven unilateral myopia (group 1) and fifty-nine bilateral myopia with anisometropia children were involved in this 1-year retrospective study. And bilateral myopia with anisometropia children were divided into group 2A (diopter of the lower SER eye under − 2.00D) and group 2B(diopter of the lower SER eye is equal or greater than − 2.00D). The change in AL were observed.The datas were analysed using SPSS 21.0.Results(1) In group 1, the mean baseline AL of the H eyes and L eye were 24.70 ± 0.89 mm and 23.55 ± 0.69 mm, respectively. In group 2A, the mean baseline AL of the H eyes and L eyes were 24.61 ± 0.84 mm and 24.00 ± 0.70 mm respectively. In group 2B, the mean baseline AL of the H eyes and L eyes were 25.28 ± 0.72 mm and 24.70 ± 0.74 mm. After 1 year, the change in AL of the L eyes was faster than the H eyes in group 1 and group 2A (all P<0.001).While the AL of the H eyes and L eyes had the same increased rate in group 2B. (2) The effect of controlling AL elongation of H eyes is consistent in three groups (P = 0.559).The effect of controlling AL elongation of L eyes in group 2B was better than that in group 1 and group 2A (P < 0.001). And the difference between group 1 and group 2A has no statistical significance. (3) The AL difference in H eyes and L eyes decreased from baseline 1.16 ± 0.55mm to 0.88 ± 0.68mm after 1 year in group 1.And in group 2A, the AL difference in H eyes and L eyes decreased from baseline 0.61 ± 0.34mm to 0.48 ± 0.28mm. There was statistically significant difference (all P<0.001). In group 2B, the baseline AL difference in H eyes and L eyes has no significant difference from that after 1 year (P = 0.069).ConclusionsMonocular OK lens is effective on suppression AL growth of the myopic eyes and reduce anisometropia value in unilateral myopic children. Binocular OK lenses only reduce anisometropia with the diopter of the low eye under − 2.00D. Binocular OK lenses cannot reduce anisometropia with the diopter of the low eye equal or greater than − 2.00D. Whether OK lens can reduce refractive anisometropia value is related to the spherical equivalent refractive of low refractive eye in bilateral myopia with anisometropia children after 1-year follow-up.


Author(s):  
Ricky Wibowo ◽  
Didin Budiman ◽  
Gano Sumarno

The aim of this study was to find out the proficiency differences in fine motor skills and gross motor skills based on gender. 147 children at the elementary school level were divided into two groups according to their gender. Male children were 78 children (aged 8.5±0.4) and female children were 69 children (aged 8.3±0.3). The instrument used in this research was the Movement Assessment Battery for Children–second edition (MABC-2). The statistical test used a non-parametric Mann-Whitney U test, while r coefficient was used to interpret the effect size. The result of the study showed that the manual agility of male children was better than female children. However, the difference was not significant and the effect size was small (p .05, r = .004). The result also showed that the catching and throwing skills of male children were better. The difference was not significant and the effect size was small (p .05, r = .023). Meanwhile, the balance of the male children was better than the female children with a significant difference and medium effect size (p .05, r = .055). In general, the result of the study shows that male children are better than female children in fine and gross motor skill mastery.


2021 ◽  
Vol 6 (1) ◽  
pp. 150-157
Author(s):  
Andi Amry Yahya ◽  
Sarifuddin Arham

This study was conducted to determine the effect of the learning method (TGT) and conventional learning methods on the learning outcomes of passing under volleyball in SMA Negeri 2 Bone students. This research method is a type of experimental research selected by random sampling then given a pretest and posttest with a population of all students of SMA Negeri 2 Bone. Furthermore, 2 (two) classes that have been randomly selected are then given treatment in the form of physical education learning in the form of the TGT cooperative learning model and the other one is not given treatment or carries out conventional learning. The data analysis technique used t test with a significant level of 0.05. The result of the unpaired t-test calculation shows that the t value is 5.069 and the probability value is 0.000 which is smaller than the α 0.05, which means that there is a significant difference in the effect between cooperative learning type TGT and conventional learning on improving the ability to pass under volleyball (p <0.05). The difference seen from the mean value of the final passing under test in the cooperative learning class TGT is 10.14 greater than the average value of the conventional class final test of 7.94. Thus it can be said that the TGT type of cooperative learning is better than conventional learning in improving the ability to pass under volleyball in SMA Negeri 2 Bone students.Keywords: TGT, under-passing, volleyball, student learning outcomes.AbstrakPenelitian ini dilakukan untuk mengetahui pengaruh antara metode pembelajaran (TGT) dan metode pembelajaran konvensional terhadap hasil belajar passing bawah permainan bola voli siswa SMA Negeri 2 Bone. Metode penelitian ini merupakan jenis penelitian eksperimen yang dipilih secara random sampling kemudian diberi pretest dan posttest dengan populasi seluruh siswa SMA Negeri 2 Bone. Selanjutnya 2 (dua) kelas yang telah dipilih secara acak kemudian diberikan perlakuan berupa pembelajaran pendidikan jasmani dalam bentuk model pembelajaran kooperatif tipe TGT dan yang satunya tidak diberi perlakuan atau melakukan pembelajaran secara konvensional. teknik analisis data yang digunakan uji t dengan taraf signifikan 0.05. Hasil perhitungan uji-t tidak berpasangan menunjukkan nilai t yaitu 5,069 dan nilai probabilitas yaitu 0,000 lebih kecil dari nilai α 0.05 berarti ada perbedaan pengaruh yang signifikan antara pembelajaran kooperatif tipe TGT dan pembelajaran konvensional terhadap peningkatan kemampuan passing bawah bolavoli (p < 0.05). Perbedaan dilihat dari nilai rata-rata tes akhir passing bawah kelas pembelajaran kooperatif tipe TGT sebesar 10,14 lebih besar dari nilai rata-rata tes akhir kelas konvensional sebesar 7,94. Dengan demikian dapat dikatakan bahwa pembelajaran kooperatif tipe TGT lebih baik dibandingkan pembelajaran konvensional dalam meningkatkan kemampuan passing bawah bola voli pada siswa SMA Negeri 2 Bone.Kata kunci: TGT, passing bawah, bolavoli, hasil belajar siswa. 


Author(s):  
Keng Chen ◽  
Kun Wang ◽  
Danzhi Chen ◽  
Huanjiang Niu ◽  
Shuxu Yang ◽  
...  

Abstract Background Organized chronic subdural hematoma (CSDH) is a special type of CSDH. However, the optimal surgical procedure has not been established. We present our experience here to discuss the surgical procedure in treatment of organized CSDH. Methods Thirty-three patients with organized CSDH were admitted between January 1, 2008 and January 1, 2018. Age, gender, clinical symptoms, imaging data, type of surgical procedure, Barthel index (BI), and postoperative complications were collected and retrospectively analyzed. The BI was assessed both pre and postoperatively (1 week and 1 month after surgery). Results Overall, 14 patients underwent large craniotomy and 19 patients underwent small craniotomy. No significant differences in gender, age, initial clinical symptoms, and preoperative BI were found between the groups (p > 0.05). Among the 14 patients who underwent large craniotomy, 2 patients developed epilepsy after the operation, while 1 patient had postoperative aphasia. None of the patients had recurrence in 6 months postoperatively. Among the 19 patients who underwent small craniotomy, 1 patient developed an acute subdural hematoma and 1 patient developed aphasia. No obvious complications were found in the remaining 18 patients and none of the 19 patients had recurrence in 6 months postoperatively. BI scores of the small craniotomy group were significantly better than those of the large craniotomy group at 1 week postoperatively (p < 0.05). However, there was no significant difference in the 1-month results (p > 0.05). Conclusion According to our single-center experience, a small craniotomy for treating organized CSDH can be considered as an alternative to a larger craniotomy.


1980 ◽  
Vol 8 (3) ◽  
pp. 263-274 ◽  
Author(s):  
J. E. Holmgren ◽  
F. N. Dyer ◽  
R. E. Hilligoss ◽  
F. H. Heller

Three sets of audiovisual lessons from the Army Training Extension Course (TEC) Program were presented to samples of enlisted soldiers on either a prototype videodisc player or the film and audio cassette player currently used for TEC lessons. The training effectiveness of the lessons was determined by administering validated hands-on performance tests to the trained soldiers and also to a baseline group that had not viewed the TEC lessons. Initial results show that, for all three sets of lessons, both groups of trained soldiers performed significantly better than those in the baseline group. The difference between the two trained groups is not statistically significant for two of the three lesson sets; for the third set, there is a significant difference of ten percent in mean performance test score in favor of the film and audio cassette player.


Author(s):  
Errol R. Hoffmann

The aim of the present work was to quantify the difference in performance of hands when doing tasks of defined difficulty. Results of five experiments are reported in which strongly lateralised subjects performed movement tasks with their preferred and non-preferred hands. These tasks were (i) ballistic movements (ii) Fitts' task (iii) pin-to-hole transfer (iv) Drury tracking task (v) a modified form of the Drury tracking task in which subjects cut paper with scissors. The results showed that in ballistic tasks there was no significant effect of handedness or of hand used. With visually-controlled tasks, where there was considerable control of accuracy required, the preferred hand generally performed better than the non-preferred hand. There was however no significant difference, in any of the tests, between right and left handers when using their preferred hands. Left handers, in some tasks, performed better with their non-preferred hands than did right handed persons using the non-preferred hand.


2003 ◽  
Vol 9 (1) ◽  
pp. 44-49
Author(s):  
Su Lin LAI ◽  
Jung Chi SU

LANGUAGE NOTE | Document text in Chinese; abstract also in English.The main aim of this study was to investigate the influence on tennis serve performance in terms of with/without audiences and with/without receivers. The subjects were 18 tennis players - 13 from the National College of Physical Education and Sports and 5 from the Army tennis team. They were classified into two main groups: national players (Gl) and non-national players (G2). Successful rate, speed, accurate rate and double-fault of serve were recorded under the circumstances of with/without audiences and with/without receivers. Four different conditions were used: (1) without audiences and without receivers, (2) without audience and with receivers, (3) with audiences and without receivers, and (4) with audiences and with receivers. Independent t-test was used to compare the difference between the groups of Gl and G2 under the four situations whereby α level was set at .05. As a consequence, the results reveal that there was no significant difference between these groups of tennis players under the circumstances of first/second serve successful rate, first/second serve speed, first/second serve accurate rate and double-fault, with/without audiences and with/without receivers. Nevertheless, the non-national players appeared to perform better than the national players under the circumstances of first/second serve successful rate, first/second serve accurate rate and double-fault, with audiences and with receivers.本研究主要是探討國手與非國手在練習發球時,有、無觀眾在場與有、無人接發球對發球表現的影響,以提供國內敎練與選手作為訓練的依據。以13名國立體育學院運動技術系網球隊選手及5名國軍網球隊選手,合計18名男選手為研究對象。共分為國手組及非國手組兩組自願擔任本研究的受試者。記錄這些受試選手在有、無觀眾在場與有、無人接發球四種情境下的發球表現情形(進球率、進球速度、準確率及雙發失誤)。共分四種情境:(1)無觀眾在場、無人接球時。(2)無觀眾在場、有人接發球時。(3)有觀眾在場、無人接發球時。(4)有觀眾在場、有人接發球時。以獨立樣本t考驗來考驗國手組與非國手組在四種不同情境下的發球表現是否有差異。顯著水準設在α = .05。本研究結果發現比較國手與非國手在四種情況下第一與第二發球進球率、第一與第二發球進球速度、第一與第二發球準確率以及雙發失誤的t考驗均未達顯著水準,但國手的表現普遍較非國手來得好。但唯有在「有觀眾在場與有人接發球」情況下,非國手的第一及第二發球進球率、第一及第二發球準確率及雙發失誤較國手有較好的傾向。


Author(s):  
Maulana Arif Ardiyanto ◽  
Muhammad Furqon Hidayatullah ◽  
Sri Santoso Sabarini

This research aims to uncover: 1) the difference in the effect of internal imagery and external imagery on the forehand serve accuracy of the PTM Dwi Bengawan Solo players, 2) the difference in the effect of high concentration and low concentration on the forehand serve accuracy of Junior Table Tennis Athletes in Sukoahrjo, and 3) the interaction between training methods and concentration on the forehand serve accuracy of the Junior Table Tennis Athletes in Sukoharjo. This is an experimental research. The research samples were determined by using total sampling technique, while the total samples and population were 24 junior athletes in PTM Dwi Bengawan Solo. The data were collected using: 1) concentration test of PTM Dwi Bengawan Solo players and 2) forehand serve pretest. The research instrument included 2 tests, namely the forehand serve accuracy test with validity (0.809) and reliability (0.988). The concentration test with validity (0.89) and reliability (0.803). The data were analyzed using the two-way ANOVA with a significance level of α = 0.05. The results showed that: 1) There was a significant difference between internal imagery and external imagery training (p = 0.000 <0.05), so the internal imagery training method was better than external imagery. 2) There was a difference between players who had high concentration and low concentration (p = 0.000 < 0.05), so players who had high concentration were better than those who had low concentration. 3) There was an interaction between internal imagery and external imagery as well as high and low concentrations (p = 0.047 <0.05). Players who had high concentration would perform better if trained with internal imagery, while players who had low concentration would be better if trained with external imagery.


GeoEco ◽  
2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Erna Mardliyana ◽  
Chatarina Muryani ◽  
Sarwono Sarwono

<p>The purpose of this research is to know: (1) the difference of geography learning outcomes between using Contextual Teaching and Learning (CTL), Edmodo based on e-learning, and conventional learning model (2) the difference of geography learning outcomes between using Contextual Teaching and Learning (CTL) learning model and Edmodo based on e-learning model; (3) the difference of geography learning outcomes between using Contextual Teaching and Learning (CTL) learning model and conventional learning model; (4) the difference of geography learning outcomes between using Edmodo based on e-learning and conventional learning model on geography research step at X IPS SMA and MA Assalaam Sukoharjo. The technique ofcollecting data uses written tests in the form of multiple choice questions. The data validity uses the validity of the questionsto measure the difference, level of difficult, and reability. For the normality testing uses liliefors method, meanwhile the data analysis uses one way anava. The results of this research are: (1) There is a significant difference of geography learning outcomes between using Contextual Teaching and Learning (CTL) learning model, e-learning based on edmodo and conventional learning model; (2) There is not difference in geography learning outcomes between using Contextual Teaching and Learning (CTL) learning model and e-learning model of edmodo(both of models are equally effective); (3) the result of geography study using Contextual Teaching and Learning (CTL) learning model is better than conventional learning model; (4) the result of geography study using e-learning model of edmodo is better than conventional learning model on the research step of geography at class X IPS SMA and MA Assalaam Sukoharjo. <br />Keywords: CTL Learning Model, Edmodo Based E-learning, Geography Learning Outcomes of Geography Material.</p>


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