scholarly journals Nutrient suppression in passion fruit species: an approach to leaf development and morphology

2021 ◽  
Vol 17 (3) ◽  
pp. 89-102
Author(s):  
Lucas Aparecido Manzani Lisboa ◽  
José Carlos Cavichioli ◽  
Rodrigo Vitorino ◽  
Paulo Alexandre Monteiro de Figueiredo ◽  
Ronaldo da Silva Viana
Keyword(s):  
Experimental Design ◽  
Leaf Development ◽  
Leaf Morphology ◽  
Nutrient Deficiency ◽  
Passion Fruit ◽  
Control Group ◽  
Size And Shape ◽  
Fruit Species ◽  
Growth Changes

The production of passion fruit in commercial areas requires a good correction of nutrients in the soil, however, with nutritional restrictions it can cause symptoms of deficiency expressed mainly in the leaves and stems, which may appear spots, reduced growth, changes in the architecture of these organs mainly in the its size and shape. This work aimed to know the effects caused by the suppression of nutrients in passion fruit species with an approach on their development and leaf morphology. The experimental design was completely randomized (DIC) in a 2x6 factorial scheme where the first factor was composed of two passion fruit species: P. gibertiiand P. edulis, interacting with the availability of nutrients, that is, a control group with the supply of all nutrients, with nitrogen suppression (N); phosphorus (P); potassium (K); magnesium (Mg) and iron (Fe), totaling 12 treatments with four replications totaling 48 plots or plastic vessels per experiment. The species P. edulisshowed better responses to the variables of development andleaf morphology. The species P. gibertiiis more susceptible to nutrient deficiency and showed changes in the color and shape of its leaves with the restriction of nutrients. The nutrients Fe and Mg caused greater restrictions on the development and leaf morphology of passion fruit species. It is necessary to carry out a new study with the species P. gibertiiregarding the appropriate concentrations of N, P and K provided in planting and cover, as this species is used as a rootstock in commercial areas

A Pilot Study on the Efficacy of Volunteer Mentorship for Young Adults With Self-Harm Behaviors Using a Quasi-Experimental Design

Crisis ◽  
2016 ◽  
Vol 37 (6) ◽  
pp. 415-426 ◽  
Author(s):  
Yik-Wa Law ◽  
Paul S. F. Yip ◽  
Carmen C. S. Lai ◽  
Chi Leung Kwok ◽  
Paul W. C. Wong ◽  
...  
Keyword(s):  
Experimental Design ◽  
Suicide Ideation ◽  
Intervention Group ◽  
Well Being ◽  
Control Group ◽  
Treatment As Usual ◽  
Prevention Services ◽  
Quasi Experimental ◽  
Self Harm ◽  
Volunteer Support

Abstract. Background: Studies have shown that postdischarge care for self-harm patients is effective in reducing repeated suicidal behaviors. Little is known about whether volunteer support can help reduce self-harm repetition and improve psychosocial well-being. Aim: This study investigated the efficacy of volunteer support in preventing repetition of self-harm. Method: This study used a quasi-experimental design by assigning self-harm patients admitted to the emergency departments to an intervention group with volunteer support and treatment as usual (TAU) for 9 months and to a control group of TAU. Outcome measures include repetition of self-harm, suicidal ideation, hopelessness, and level of depressive and anxiety symptoms. Results: A total of 74 cases were recruited (38 participants; 36 controls). There were no significant differences in age, gender, and clinical condition between the two groups at the baseline. The intervention group showed significant improvements in hopelessness and depressive symptoms. However, the number of cases of suicide ideation and of repetition of self-harm episodes was similar for both groups at the postintervention period. Conclusion: Postdischarge care provided by volunteers showed significant improvement in hopelessness and depression. Volunteers have been commonly involved in suicide prevention services. Further research using rigorous methods is recommended for improving service quality in the long term.

PROGRAM BIMBINGAN UNTUK MENINGKATKAN MOTIVASI BELAJAR SISWA

2017 ◽  
Vol 17 (1) ◽  
pp. 55
Author(s):  
Ismaniar Ismaniar Ismaniar
Keyword(s):  
Experimental Design ◽  
Quantitative Research ◽  
Sampling Technique ◽  
Learning Motivation ◽  
Control Group ◽  
Research Approach ◽  
Purposive Sampling ◽  
Guidance Program ◽  
Quasi Experimental ◽  
11Th Grade

The present study is aimed at developing effective guidance program for increasing student’s learning motivation. The present study applies quantitative research approach with nonequivalent pre-posttest control group quasi-experimental design, and nonrandom-purposive sampling technique. The data were collected using inventory, interview, and documentary study. The study comes up with the main finding that the tested guidance program is proven to be effective for increasing learning motivation students of 11th grade at SMA Kartika XIX-2 Bandung.

The Effect of Applying POSSE (Predict- Organize-Search-Summarize-Evaluate) on the Students’ Reading Comprehension

2013 ◽  
Vol 2 (1) ◽  
Author(s):  
Eka Rejeki Maha ◽  
Berlin Sibarani
Keyword(s):  
Reading Comprehension ◽  
Experimental Design ◽  
Null Hypothesis ◽  
Alternative Hypothesis ◽  
Choice Test ◽  
Control Group ◽  
Multiple Choice Test ◽  
Level Of Significance ◽  
And Control ◽  
Experimental Group

This study was aimed at finding out The Effect of Applying POSSE (Predict-Organize-Search-Summarize-Evaluate) Strategy on the Students’ Reading Comprehension. This study used the experimental design. The population of this study was the students of SMA Negeri 2 Medan. There were sixty students taken as the sample of the research. This study was conducted with two randomized groups namely experimental and control group. The experimental group was taught by applying POSSE strategy while control group was taught without applying POSSE strategy. The instrument of collecting the data was multiple choice test which consists of 40 items. To obtain the reliability of the test, the researcher used Kuder-Richardson (KR-21). The calculation shows the reliability was 0.81(high). The data were analyzed by using t-test. The calculation shows that t-observed (4.76) is higher than t-table (2.00) at the level of significance (α) 0.05 with the degree of freedom (df) 58. Therefore, the null hypothesis (Ho) is rejected and alternative hypothesis (Ha) is accepted. It means that there was a significant effect of applying POSSE strategy on the students’ reading comprehension. Keywords: POSSE Strategy, Reading Comprehension.

THE EFFECT OF RAP (READ, ASK, PARAPHRASE) STRATEGY ON STUDENTS’ READING COMPREHENSION IN READING ANALYTICAL EXPOSITION TEXT

2015 ◽  
Vol 4 (3) ◽  
Author(s):  
Veronika N. And Lince Sihombing
Keyword(s):  
Reading Comprehension ◽  
Experimental Design ◽  
T Test ◽  
Control Group ◽  
Multiple Choice Tests ◽  
Choice Tests ◽  
Second Year ◽  
Level Of Significance ◽  
And Control ◽  
Experimental Group

This study focused on finding out the effect of applying RAP (Read, Ask,Paraphrase) Strategy on students’ reading comprehension in reading analyticalexposition text. This study was conducted in experimental design. The populationof this research was the second year of students in SMA Swasta Katolik BudiMurni 2 Medan. There were seventy students of the second year senior highschool students as the sample of the research. This study was conducted with tworandomized groups namely Experimental Group and Control Group. Theexperimental group was taught by applying RAP Strategy, while the control groupwas taught by applying conventional strategy. The instrument of collecting thedata was multiple choice tests which consisted of 25 items. The data wereanalyzed by using t-test formula. The calculation shown that t-observed (5.36)was higher than t-table (1.994) at the level of significance (α) 0.05 with the degreeof freedom (df) 68. It means that there was a significant effect of applying RAPStrategy on students’ reading comprehension in reading analytical exposition text.

THE EFFECT OF USING NOTING INTERACTING SUMMARIZING AND PRIORITIZING STRATEGY ON STUDENTS’ ACHIEVEMENT IN READING COMPREHENSION

2013 ◽  
Vol 2 (4) ◽  
Author(s):  
Maruh Sianturi And Berlin Sibarani
Keyword(s):  
Reading Comprehension ◽  
Experimental Design ◽  
Null Hypothesis ◽  
Alternative Hypothesis ◽  
Control Group ◽  
First Year ◽  
Teaching Reading ◽  
First Year Students ◽  
Level Of Significance ◽  
Experimental Group

This study was aimed at finding out the effect of using Noting, Interacting, Summarizing, and Prioritizing Strategy on Students’ Achievement in Reading Comprehension. This study was designed with the experimental design. The population of this study was the first year students at academic 2013/2012 of SMA swasta YP St. Paulus Martubung, Medan. There were fourty students taken as the sample of the research. The sample was divided into two groups: the first group (20 students) as the experimental group and the second group (20 students) as the control group. The experimental group was taught by Using Noting, Interacting, Summarizing, and Prioritizing Strategy, while the control group was taught by using conventional method. The instrument for collecting the data was multiple choices which consisted of 40 items. To obtain the reliability of the test, the researcher used Kuder -Richardson (KR-21) formula. The calculation showed that the reliability of the test was 0.75. The data were calculated by using t-test formula. The result of the analysis shows that t-observed (4.98) was higher than t-table (2.025) at the level of significance (α) 0.05 and the degree of freedom (df) 38. Therefore, the null hypothesis (H0) was rejected and alternative hypothesis (Ha) was accepted. It meant that teaching reading comprehension by using Noting, Interacting, Summarizing, and Prioritizing Strategy significantly affects reading comprehension.

Pay Secrecy versus Pay Disclosure for Salesmen: A Longitudinal Study

1978 ◽  
Vol 15 (2) ◽  
pp. 214-219 ◽  
Author(s):  
Charles M. Futrell ◽  
Omer C. Jenkins
Keyword(s):  
Job Satisfaction ◽  
Longitudinal Study ◽  
Experimental Design ◽  
Empirical Evidence ◽  
Control Group ◽  
Amount Of Information ◽  
Pay Secrecy

On the basis of a “before-after with control group” experimental design, empirical evidence is provided that shows the amount of information disclosed about pay had a major impact on salesmen's performance and job satisfaction.

scholarly journals PRODUCTION OF GUAVA MINI-GRAFTED ON INTRA OR INTERSPECIFIC ROOTSTOCK

2017 ◽  
Vol 39 (1) ◽  
Author(s):  
GRAZIELLA SIQUEIRA CAMPOS ◽  
CLÁUDIA SALES MARINHO ◽  
CAMILLA RANGEL PORTELLA ◽  
BRUNO DIAS AMARAL ◽  
WALESKA SOARES GOMES DE CARVALHO
Keyword(s):  
Experimental Design ◽  
Psidium Guajava ◽  
Production Time ◽  
Fruit Species ◽  
Grafting Technique ◽  
Average Production ◽  
Increase Efficiency

ABSTRACT Mini-grafting is a type of grafting that has been indicated to increase efficiency of forest and fruit species propagation. The aim of this study was to evaluate the mini-grafting technique as a method for propagation of guava grafted on intra or interspecific rootstock. The experimental design was randomized blocks, with four treatments, five replications and plots consisting of ten plants, in a 22 factorial arrangement, and factors consisted of rootstocks and canopy cultivars. Rootstocks used were Psidium guajava and Psidium guineense. The canopy used was Paluma and Cortibel 1 cultivars. Only thecanopy used had an effect on the percentage of grafting success of 52, 54, 82 and 84%, respectively, for ‘Cortibel 1’/P. guineense; ‘Cortibel 1’/P. guajava; ‘Paluma’/P. guineense; ‘Paluma’/P. guajava combinations. Mini-grafting was effective for guava propagation on intra or interspecific rootstocks. The average production time for ‘Paluma’ and ‘Cortibel 1’ saplings grafted on P. guajava or P. guineense, for mini-grafting, was 351 days, so that ‘Paluma’ seedlings were more vigorous than those of ‘Cortibel 1’.

scholarly journals Pengaruh Strategi Pembelajaran Beyond Centers And Circletime (Bcct) Terhadap Kreatifitas Anak Usia Dini Kelompok Usia 3-4 Tahun Di Pos Paud Nusa Indah Surabaya

2018 ◽  
Vol 4 (1) ◽  
pp. 75
Author(s):  
Rini Nur Kholifah ◽  
Endah Hendarwati ◽  
Aris Setiawan
Keyword(s):  
Experimental Design ◽  
T Test ◽  
Mean Difference ◽  
Control Group ◽  
Control Group Design ◽  
Circle Time ◽  
Group Design ◽  
Post Test ◽  
Test Control

Permasalahan dalam penelitian ini adalah model pembelajaran klasikal yang digunakan guru dalam mengajarkan calistung kreativitas anak belum berkembang dengan optimal. Strategi pembelajaran beyond centers and circle time (bcct) dipilih sebagai suatu model pembelajaran yang berpusat pada anak. Dalam model pembelajaran tersebut terdapat suatu variasi prilaku kreatif yang digunakan untuk bahan penelitian. Rumusan masalah dalam penelitian ini adalah bagaimana aktivitas kreativitas anak usia dini dengan menggunakan pembelajaran beyond centers and circle time (bcct) dan pengaruh strategi pembelajaran beyond centers and circle time (bcct) terhadap kreativitas anak usia dini. Penelitian ini bertujuan untuk mengetahui bagaimana aktivitas kreativitas anak usia dini dengan menggunakan pembelajarn beyond centers and circle time (bcct) dan pengaruh strategi pembelajaran beyond centers and circle time (bcct) terhadap kreativitas anak usia dini. Jenis penelitian yang digunakan adalah penelitian kuantitatif dengan desain penelitian menggunakan Pre-Experimental Design dengan menggunakan Pre-Test-Post-Test Control Group Design. Populasi dari penelitian adalah anak Pos Paud Nusa Indah Surabaya. Kelompok B dengan jumlah anak 28, kelas eksperimen 14 anak dan kelas kontrol 14 anak. Teknik pengumpulan data dalam penelitian ini adalah dengan menggunakan observasi dan dokumentasi. Teknik analisis data adalah dengan menggunakan uji normalitas, uji homogenitas dan uji-t (t-test). Hasil penelitian menunjukkan bahwa kedua kelompok dinyatakan terdistribusi normal (0,200>0,05) untuk kelompok eksperimen dan kelompok kontrol. Dari uji Homogenitas di dapat kedua kelompok bersifat homogen (0.378>0,050) pada pretest dan(0.554>0,05) pada hasil nilai dari kelompok eksperimen dan kelompok kontrol terdapat perbedaan mean sebesar 0,5 hal ini terlihat dari mean difference sebesar -0,5000. Hasil analisis Group Statistics Pretest dan Group Statistics Posttest terlihat ada perbedaan dengan rata-rata pretest 6.143 berubah menjadi 9.714 dengan range kenaikan rata-rata 3.571. Sementara kelompok dengan pendekatan BCCT (Beyond Centers and Circle Time) mendapat hasil rata-rata 6.00 dan medapati kenaikan pada skor 10.214 dengan kenaikan skor sebesar 4.214. dengan demikian dapat di artikan bahwa penggunaan pendekatan BCCT (Beyond Centers and Circle Time) lebih efektif dalam meningkatkan kemampuan kreatifitas anak.

scholarly journals In the Purchase’s Essence: Sensory and symbolic elements in the descriptions of perfume sales over the Internet

2020 ◽  
Vol 4 (3) ◽  
pp. 217
Author(s):  
Brenda Allana Santos De Paula ◽  
Miriam Leite Farias ◽  
Salomão Alencar de Farias ◽  
Ilda Maria Moraes e Silva
Keyword(s):  
Experimental Design ◽  
Negative Association ◽  
The Internet ◽  
Control Group ◽  
Level Of Involvement ◽  
Dependent Variables ◽  
Internet Sales ◽  
Quasi Experimental ◽  
Product Description ◽  
Do So

This study aimed to analyse whether sensory and symbolic elements used in perfume descriptions in internet sales can positively influence the level of involvement and consumer buying intention. To do so, a quasi-experimental design was adopted with the creation of three scenarios: one control group and two experimental groups.  Each participant was presented to only one of the scenarios created, characterizing the model between subjects. Regarding the results, it was found that it is not possible to perceive differences between the means of the groups in relation to the dependent variables, except for a negative association between sensory aspects and the level of involvement. Therefore, it was concluded that it may not be advantageous to invest in sensory and symbolic aspects present in the product description in internet sales, it is necessary to rethink this strategy due the fact that this environment has a certain limitation with hedonics products.

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