scholarly journals (270) Screeing for Melonworm Resistance in Squash and Pumpkins

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1027E-1028
Author(s):  
Jorge Pérez-Arocho ◽  
Linda Wessel-Beaver
Keyword(s):  
Leaf Damage ◽  
Control Group ◽  
Single Plant ◽  
Sources Of Resistance ◽  
Leaf Sample ◽  
Green Leaves ◽  
Upper Limit ◽  
Foliar Damage ◽  
Independent Culling ◽  
Selection Of

Melonworm (Diaphania hyalinata) is one of the most damaging pests of squash and pumpkin (Cucurbita sp.) in tropical/subtropical regions of the Americas. In order to identify sources of resistence to melonworm, we evaluated 345 accessions of C. moschata, including both tropical and temperate types, originating from the Americas, Europe, Asia, and Africa. C. argyrosperma (65 accessions) was also evaluated. Accessions were field tested in five single-plant complete blocks planted over a 9-month period in Isabela, P.R. Each plant was evaluated for foliar damage (0–4 scale) at 3 and 6 weeks. Larval counts were made on a five-leaf sample at 8 weeks. Accessions were classified for degree of leaf mottling and pubescence. Differences among accessions were found for foliar damage and number of larva, but ranking of accessions varied, depending on the criteria used to measure resistance. In order to establish independent culling levels, we considered the lower 30% of accessions for each trait. The upper limit was ≤0.42 for foliar damage at 3 weeks, ≤0.50 damage at 6 weeks, and ≤1.25larva/plant. This led to the selection of 34 resistant accessions. We used a similar technique to identify the most susceptible accessions. The susceptible accessions will be used as a control group when the 34 selections are further evaluated. Within C. moschata, accessions with either green leaves or less pubescence had less leaf damage and fewer larva than accessions with mottled leaves or more pubescence. As a group, C. argryosperma accessions were more susceptible, and nearly all had mottled leaves and little pubescence. Untested accessions with green leaves and/or little pubescence might yield additional sources of resistance to melonworm.

Early Predictive Biochemical, Electrocardiographic and Echocardiographic Markers for Cardiac Damage in Patients with Pulmonic Silicosis

2019 ◽  
Vol 70 (1) ◽  
pp. 63-68 ◽  
Author(s):  
Venera Cristina Dinescu ◽  
Ileana Puiu ◽  
Sorin Nicolae Dinescu ◽  
Diana Rodica Tudorascu ◽  
Elena Catalina Bica ◽  
...  
Keyword(s):  
Heart Disease ◽  
Right Ventricle ◽  
Control Group ◽  
Cardiac Damage ◽  
Right Heart ◽  
Pulmonary Heart Disease ◽  
Upper Limit ◽  
Echocardiographic Parameters ◽  
The Right ◽  
Chronic Pulmonary Heart Disease

The aim of this study was to identify correlations between electrocardiographic and echocardiographic changes in patients with silicosis prior to the occurrence of chronic pulmonary heart disease. We conducted a prospective, descriptive, analytical study, in which we included a group of 67 patients consecutively admitted to the Health Promotion and Occupational Medicine Clinic between December 2016 and January 2018, aged 47 to 78 years.There was a biochemical and electrocardiographic evaluation for each patient as well as a right ventricle echocardiographic evaluation (diameters, volumes, function). A control group, including 25 patients with benign minor diseases that required a cardiologist consultation, was also used. From the electrocardiographic point of view, slight changes were observed regarding the waves of electrical activity of the right ventricle. Taking into account the degree of ventilatory dysfunction (depending on FEV1), changes in right heart echocardiographic parameters were identified. Thus, in what the most important right ventricular parameters, including the tricuspid annular plane systolic excursion (TAPSE) or the RV index of myocardial performance (RVMPI) were concerned, values at the upper limit of normality were recorded in most patients with moderate and severe ventilatory dysfunction. Values of echocardiographic parameters of the right heart at the upper limit of normality, correlated with the degree of ventilatory dysfunction, are early markers for cardiovascular damage in patients with pulmonary silicosis prior to the occurrence of chronic pulmonary heart disease also known ascor pulmonale.

The use of premix in feeding of young pigs on fattening

2020 ◽  
pp. 54-59
Author(s):  
A. S. Ivanova ◽  
N. V. Dunaeva
Keyword(s):  
Positive Impact ◽  
Live Weight ◽  
Feed Additives ◽  
Correct Selection ◽  
Control Group ◽  
Pork Meat ◽  
Large White ◽  
Young Pigs ◽  
Experimental Group ◽  
Selection Of

Increasing the production of pork meat requires careful work not only in terms of breeding, but also in the organization of complete feeding of animals, the correct selection of feed and feed additives containing the necessary nutrients. The purpose of the work was to analyze the use of premix in feeding young pigs on fattening. Two groups of fattening young pigs (Large White×Landrace) have been selected for the researches using the method of analogous groups, taking into account the breed, age, and live weight per 20 heads in each group with a live weight of 35 kg. Pigs of the control group have received the main economic diet, and animals of the experimental group have received an additional premix Khutorok at the rate of 10 g of premix per 1 kg of feed. The results have shown that the best age to reach 100 kg was in the experimental group of pigs – 215,8 days, which received premix with feed that characterizes their higher precocity by 36,3 days (P < 0,001) than in the control group of animals. The use of this premix had a positive impact on the livability of young animals, in the experimental group it was by 9,3 abs.% more than in the control group of animals. Thus, the best fattening traits have been possessed by young pigl of the experimental group have been received the premix Khutorok in their diet at the rate of 10 g of premix per 1 kg of feed. The obtained data indicate the feasibility of using the premix Khutorok in the feeding pigs for fattening.

scholarly journals Effects of herbivory and its timing on reproductive success of a tropical deciduous tree

2020 ◽  
Vol 126 (5) ◽  
pp. 957-969
Author(s):  
Enya N Quiroz-Pacheco ◽  
Francisco Mora ◽  
Karina Boege ◽  
César A Domínguez ◽  
Ek del-Val
Keyword(s):  
Reproductive Success ◽  
Structural Equation ◽  
Structural Equation Models ◽  
Pollen Grains ◽  
Leaf Damage ◽  
Deciduous Tree ◽  
Herbivore Damage ◽  
Male And Female ◽  
Foliar Damage ◽  
The Impact

Abstract Background and Aims The implications of herbivory for plant reproduction have been widely studied; however, the relationship of defoliation and reproductive success is not linear, as there are many interacting factors that may influence reproductive responses to herbivore damage. In this study we aimed to disentangle how the timing of foliar damage impacts both male and female components of fitness, and to assess when it has greater impacts on plant reproductive success. Methods We measured herbivore damage and its effects on floral production, male and female floral attributes as well as fruit yield in three different phenological phases of Casearia nitida (Salicaceae) over the course of two consecutive years. Then we tested two models of multiple causal links among herbivory and reproductive success using piecewise structural equation models. Key Results The effects of leaf damage differed between reproductive seasons and between male and female components of fitness. Moreover, the impact of herbivory extended beyond the year when it was exerted. The previous season’s cumulated foliar damage had the largest impact on reproductive characters, in particular a negative effect on the numbers of inflorescences, flowers and pollen grains, indirectly affecting the numbers of infructescences and fruits, and a positive one on the amount of foliar damage during flowering. Conclusions For perennial and proleptic species, the dynamics of resource acquisition and allocation patterns for reproduction promote and extend the effects of herbivore damage to longer periods than a single reproductive event and growing season, through the interactions among different components of female and male fitness.

scholarly journals Pembandingan Model Pembelajaran Mind Mapping dan Arias (Assurance, Relevance, Interest, Assessment, Satisfaction) Terhadap Pemahaman Konsep Fisika

2019 ◽  
Vol 2 (2) ◽  
pp. 210-216
Author(s):  
Yeni Rafika ◽  
Welly Anggraini ◽  
Rifda El Fiah
Keyword(s):  
Learning Model ◽  
Control Group ◽  
Sampling Techniques ◽  
Mind Mapping ◽  
Control Group Design ◽  
Group Design ◽  
Class Viii ◽  
The Mind ◽  
Selection Of ◽  
Interest Assessment

Abstract: This study aims to compare the Mind Mapping and ARIAS learning models (Assurance, Relevance, Interest, Assessment, Satisfaction) to the understanding of physics concepts in class VIII students at SMP Negeri 1 Bukit Kemuning. This study is a Quasi Experiment Design with research villages using the Pretest-Posttest Design Control Group. The selection of samples using Purposive Sampling techniques. The research samples were experimental class I (VIII 4) which applied the Mind Mapping learning model and experimental class II (VIII 6) which applied the ARIAS learning model (Assurance, Relevance, Interest, Assessment, Satisfaction). Data collection instruments used were test instruments for understanding concepts (pretest and posttest) with essay questions. Based on the research results that have been calculated by the t-test with a significant level of α = 0.05 (5%) that tcount = 1.725 and ttable = 1.708 which indicates that tcount> ttable, to obtain conclusions Ha is accepted and H0 is rejected which means there is a comparison of models Mind Mapping and ARIAS on understanding the concepts of physics of students in SMP Negeri 1 Bukit KemuningAbstrak: Penelitian ini bertujuan untuk mengetahui perbandingan model pembelajaran Mind Mapping dan ARIAS(Assurance, Relevance, Interest, Assessment, Satisfaction) terhadap pemahaman konsep fisika pada peserta didik kelas VIII di SMP Negeri 1 Bukit Kemuning. Penelitian ini merupakan Quasi EksperimentDesign dengan desain penelitian menggunakan Pretest-Posttest Control Group Design. Pemilihan sampel menggunakan teknik Sampling Purposive. Sampel penelitian yakni kelas eksperimen I (VIII 4) yang diterapkan model pembelajaran Mind Mapping dan kelas eksperimen II (VIII 6) yang diterapkan  model pembelajaran ARIAS(Assurance, Relevance, Interest, Assessment, Satisfaction). Instrumen pengumpulan data yang digunakan yaitu instrumen tes untuk pemahaman konsep (pretest dan posttest) dengan bentuk soal essai. Berdasarkan hasil penelitian yang telah dihitung dengan uji-t dengan taraf signifikan α = 0,05 (5%) bahwa thitung = 1,725 dan ttabel = 1,708 yang menunjukkan bahwa thitung> ttabel , sehingga diperoleh kesimpulan Ha diterima dan H0 ditolak yang artinya terdapat perbandingan model Mind Mapping dan ARIAS terhadap pemahaman konsep fisika peserta didik di SMP Negeri 1 Bukit Kemuning

scholarly journals PENERAPAN METODE BERMAIN PERAN MAKRO TERHADAP KEMAMPUAN BERBICARA

Instruksional ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 9
Author(s):  
Nirwana Nirwana
Keyword(s):  
Statistical Analysis ◽  
Role Playing ◽  
Wilcoxon Test ◽  
Control Group ◽  
Observation Data ◽  
Group Data ◽  
Before And After ◽  
Group B ◽  
Nonparametric Statistical ◽  
Selection Of

Effect of  role playing macro methods on children's speaking ability in group B in Nurul Rohmah Bekasi. This research is motivated by the lack of ability to speak children. This is because the method used in the learning process is more likely to use conventional methods. The selection of methods to role playing macro so that children can be motivated and interested in learning and can stimulate the ability to speak children. The population in this study were all children of group B in kindergarten Nurul Rohmah while the study sample was B3 group 11 children for the experimental group and B1 group 11 children for the control group. Data collection techniques through test techniques, and observation. Data analysis techniques used were descriptive statistical analysis and nonparametric statistical analysis. Based on the results of the Wilcoxon test calculation, the calculated T value is 66 and T table 11 then the results obtained T count (66)> T table (11) H1 is accepted and Ho is rejected means that there is an effect of role playing macro  methods on children's speaking ability. Whereas the calculated Z value obtained is 2.93 and 1.645 table Z then the result of Z arithmetic (2.93)> Z table (1.645) H1 is accepted and Ho is rejected which means that there is an effect of role playing macro method on children's speaking ability. These results indicate that there is a change in the value of the child's speaking ability before and after getting learning based on the role playing macro method.

scholarly journals Dependance on online computer games as a type of addictive behaviour

2016 ◽  
Vol 7 (3) ◽  
pp. 105-120 ◽  
Author(s):  
O.V. Zaretskaya
Keyword(s):  
Locus Of Control ◽  
Internet Addiction ◽  
Computer Games ◽  
Empirical Studies ◽  
Coping Behavior ◽  
Control Group ◽  
Behavioral Characteristics ◽  
The One ◽  
And Coping ◽  
Selection Of

The article discusses the dependence on online computer games as a kind of addic- tive behavior, analyzing different viewpoints of researchers. The author represents the results of empirical studies of personality and behavioral characteristics of players, which enable to detect statistically significant differences in characteristics such as locus of control (internality / externality) and coping behavior. In the group of players internality level was lower than in the control group, and the frequency of selection of coping strategy avoidance was higher. Moreover, the author found out the correla- tion between these parameters: the level of internality is negatively correlated with the frequency of selection of avoidance strategies. These data indicate that the one of the basic factors, which forms addictive behavior, in particular, addiction to com- puter online games, is the consciousness of the degree of responsibility for one’s live, of opportunities to influence its course. These results open new perspectives for further study of the problem of computer and Internet addiction. In addition to empirical data, obtained as a result of the author's research, the article analyses well-known theoreti- cal concepts and practical work in the field of Internet addiction, coping behavior and locus of control.

scholarly journals Bevacizumab in neoadjuvant treatment of patients with liver metastases from colorectal carcinoma

2010 ◽  
Vol 18 (3) ◽  
pp. 75-78
Author(s):  
Ivan Nikolic ◽  
Svetlana Pavin ◽  
Biljana Kukic ◽  
Bogdan Bogdanovic ◽  
Miroslav Ilic ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Liver Metastases ◽  
Neoadjuvant Treatment ◽  
Hepatic Metastases ◽  
Response Rates ◽  
Control Group ◽  
Significant Difference ◽  
Experimental Group ◽  
Selection Of Patients ◽  
Selection Of

Background: Liver metastases are the leading cause of death in patients with colorectal cancer. Despite advances in chemotherapy, surgical resection of hepatic metastases is still considered the only curative options. However, the majority of patients have inoperable disease at presentation. Perioperative chemotherapy is the most successful way for improved selection of patients for resection. The aim of the study was to demonstrate if and to what extent does bevacizumab, introduced in chemotherapy, increase response rates, and development of liver metastases. Methods: Our study included 50 patients who were divided in two groups. The experimental group included patients who were treated with bevacizumab plus chemotherapy, and the control group included patients who were treated with chemotherapy only. Results: The comparison showed that the patients who were treated with bevacizumab became candidates for resection of liver metastases in higher percentage (85%:52%). In addition, distribution of patients regarding the development of metastases resulted in statistically significant difference. Ratio between the patients with good response from the experimental and the control group was 67%:39%. Ratio of patients with stable disease was 26%:48%, and of patients with progressive disease, it was 7%:3%. The estimate of margin after resection was statistically insignificant. Conclusion: Bevacizumab in combination with chemotherapy in therapy of liver metastases from primary colorectal cancer improves and increases response rates and development of liver metastases.

scholarly journals PECULIARITIES OF CORRECTING THE FIGURE AMONG WOMEN OF THE FIRST MATURE AGE PERIOD BY MEANS OF SHAPING TECHNIQUES IN ACCORDANCE WITH BODY TYPES

2021 ◽  
Vol 5 (1) ◽  
pp. 30-42
Author(s):  
Olga Kozhanova ◽  
Sergii Pitenko ◽  
Natalia Gavrilova ◽  
Evgeniya Tsуkozа ◽  
Hanna Hudym ◽  
...  
Keyword(s):  
Physical Condition ◽  
Body Shape ◽  
Current Practice ◽  
Control Group ◽  
Body Type ◽  
Adult Age ◽  
New Approaches ◽  
Sports Club ◽  
Experimental Group ◽  
Selection Of

Introduction. Currently, due to environmental and social problems, nervous strain, muscle inactivity, more and more people are starting to engage in health fitness in the hope of improving health, improving physical condition, learning how to deal with stress and lose weight. Nowadays, compared to other types of fitness, shaping classes have become more and more popular as an effective way to lose weight and body shape. Although shaping was originally developed as a system of individual classes, the current practice of group classes requires the search for new approaches in planning shaping programs: there is no research on the selection of exercises, volume and intensity of classes based on individual physiques of those involved. Aim: to increase the effectiveness of classes in order to correct the figure of women 21-35 years old through the use of shaping programs, taking into account their body types. Material and methods. The study involved 30 women aged 21 - 35 years, divided into control and experimental groups, in which 15 people each were divided by somatotype. The pedagogical experiment was conducted on the basis of the sports club "Fitness Box" in Kyiv. Results. It was found that as a result of the application of the developed shaping program in the women of the experimental group there was a decrease in the fat layer in endomorphs by 13.2%, and in the control group of endomorphs by 7.2% (p < 0,05). Changes in the fat layer in the control and experimental groups are supplemented by changes in girth: chest, shoulder, abdomen, thighs, buttocks, the dynamics of which proves the effectiveness of our program compared to traditional. Conclusions. The application of the developed shaping program allows to solve the problem of improving the efficiency of shaping in order to correct the figure taking into account endomorphic body type of women first adult age.

A Multifacetted Behavioral Group Treatment for Test Anxiety

1986 ◽  
Vol 58 (2) ◽  
pp. 535-542 ◽  
Author(s):  
Henk M. Van Der Ploeg ◽  
Jeanne D. Van Der Ploeg-Stapert
Keyword(s):  
Secondary School ◽  
Test Anxiety ◽  
Group Treatment ◽  
Control Group ◽  
Group Training ◽  
Trained Group ◽  
Methods Of Evaluation ◽  
Behavioral Group ◽  
Selection Of

A report is given of a behavioral group training of secondary school pupils to reduce test anxiety. After a brief description of trends in the treatment of test anxiety, the selection of the pupils, the methods of evaluation, and the treatment program are described. Training takes eight sessions plus homework assignments. Administration of (test) anxiety inventories was repeated. After treatment scores on test anxiety decreased significantly. Comparison of the test scores in the waiting-list control group with those of the trained group after training shows improvement at retest. At follow-up after 12 wk. decrease in anxiety in the trained group is even greater.

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