scholarly journals Multivariate analysis in the morpho-yield evaluation of forage cactus intercropped with sorghum

2020 ◽  
Vol 24 (11) ◽  
pp. 756-761
Author(s):  
Alexandre M. da R. F. Jardim ◽  
Thieres G. F. da Silva ◽  
Luciana S. B. de Souza ◽  
Marcondes de S. Souza ◽  
José E. F. de Morais ◽  
...  
Keyword(s):  
Arid Regions ◽  
Cropping Systems ◽  
Cropping System ◽  
Principal Component ◽  
Agricultural Activity ◽  
Yield Traits ◽  
Sole Crop ◽  
Components Analysis ◽  
Relationship Of ◽  
The Relationship

ABSTRACT Understanding the effect of the cropping system on the morpho-yield relationship of plants is crucial for success in the agricultural activity, mainly in arid and semi-arid regions, where there are major challenges for food production. In this study, the objective was to apply multivariate statistics in the morpho-yield evaluation of forage cactus clones in cropping systems as sole crop and intercropped with sorghum cultivars. The experiment was conducted in Serra Talhada, PE, Brazil, between March 18, 2017 and June 16, 2018. The design adopted was in randomized blocks with 12 treatments composed of three forage cactus clones in sole-crop system (IPA Sertânia, Miúda and Orelha de Elefante Mexicana) and nine forage cactus-sorghum intercropping systems with the cultivars 467, SF11 and 2502. Morphometric and phytomass measurements of forage cactus clones were performed throughout the cycle. The relationship between the morpho-yield traits of the clones was evaluated by means of principal component analysis. Cladode width, length, perimeter, and area are morphometric variables that determine phytomass accumulation in clones. The cropping systems did not influence the association of morpho-yield traits, but it depends on the genus of forage cactus. Negative correlations between cladode dimensions and phytomass of the clones of the genus Nopalea explained their lower phytomass accumulations. Principal components analysis makes it possible to elucidate associations between morpho-yield variables of forage cactus.

HUBUNGAN KEPADATAN BIVALVIA DENGAN PARAMETER LINGKUNGAN DI PESISIR TANJUNG PURA KABUPATEN BANGKA TENGAH

2020 ◽  
Vol 13 (2) ◽  
pp. 112-121
Author(s):  
Sudiyar . ◽  
Okto Supratman ◽  
Indra Ambalika Syari
Keyword(s):  
Negative Impact ◽  
Principal Component ◽  
Environmental Parameters ◽  
Data Retrieval ◽  
Distribution Patterns ◽  
Random System ◽  
System Method ◽  
Relationship Of ◽  
The Relationship ◽  
Anadara Granosa

The destructive fishing feared will give a negative impact on the survival of this organism. This study aims to analyze the density of bivalves, distribution patterns, and to analyze the relationship of bivalves with environmental parameters in Tanjung Pura village. This research was conducted in March 2019. The systematic random system method was used for collecting data of bivalves. The collecting Data retrieval divided into five research stasions. The results obtained 6 types of bivalves from 3 families and the total is 115 individuals. The highest bivalve density is 4.56 ind / m², and the lowest bivalves are located at station 2,1.56 ind / m²,  The pattern of bivalve distribution in the Coastal of Tanjung Pura Village is grouping. The results of principal component analysis (PCA) showed that Anadara granosa species was positively correlated with TSS r = 0.890, Dosinia contusa, Anomalocardia squamosa, Mererix meretrix, Placamen isabellina, and Tellinella spengleri were positively correlated with currents r = 0.933.

scholarly journals Correlation of environmental factors and spatial distribution of moluscs communities in mangrove reboisation areas of Seribu Islands, Indonesia

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Syahrial Syahrial ◽  
Eryc Pranata ◽  
Hendri Susilo
Keyword(s):  
Principal Component Analysis ◽  
Spatial Distribution ◽  
Environmental Factors ◽  
Principal Component ◽  
Quality Standard ◽  
Small Plot ◽  
Line Transects ◽  
Relationship Of ◽  
The Relationship ◽  
Mangrove Reforestation

Mangrove reforestation is often carried out in various regions or regions, but information about the relationship of environmental factors and the distribution of fauna associations is still very minimal. The Principal Component Analysis (PCA) study on the correlation of environmental factors and the spatial distribution of the molusks community in the Seribu Islands mangrove reforestation area was conducted in March 2014 with the aim of analyzing environmental factors for the diversity and presence of the molusks. Environmental factors are measured insecurely, while the moluccan community is collected by making line transects and plots measuring 10 x 10 m2 and in the size of 10 x 10 m2, a small plot of 1 x 1 m2 is made. The results of the study show that environmental factors are not so different between stations and do not exceed the quality standard for the lives of 4 species of mollusks, where the parameters of aquatic pH are the environmental factors that most influence their distribution.Keywords: environmental factors, distribution, mollusks community, mangrove reforestation, Seribu Islands

scholarly journals A Differential Host Response to Viral Infection Defines a Subset of Earlier-Onset Diverticulitis Patients

2018 ◽  
Vol 27 (3) ◽  
pp. 249-255 ◽  
Author(s):  
Kathleen M Schieffer ◽  
Bryan P Kline ◽  
Leonard R Harris ◽  
Sue Deiling ◽  
Walter A Koltun ◽  
...  
Keyword(s):  
Differentially Expressed Genes ◽  
Principal Component ◽  
Differentially Expressed ◽  
Rna Seq ◽  
Viral Pathogen ◽  
Viral Response ◽  
Elevated Expression ◽  
Bioinformatic Approaches ◽  
Relationship Of ◽  
The Relationship

Background & Aims: Diverticulitis is the chronic inflammation of diverticula. Whether the pathophysiology of earlier-onset patients differs from later-onset patients is unknown. We profiled the colonic transcriptomes of these two patient populations to gain insight into the molecular underpinnings of diverticulitis. Methods: We conducted deep RNA sequencing (RNA-seq) on colonic segments surgically resected from earlier-onset (<42 years old, n=13) and later-onset (>65 years old, n=13) diverticulitis patients. We used bioinformatic approaches to cluster the patients based on the relationship of differentially expressed genes and to inform on the molecular pathways that segregated the clusters. Results: Principal component analysis identified three patient clusters; diverticulitis later-onset (DVT-LO), diverticulitis mixed-onset (DVT-MO), and diverticulitis earlier-onset (DVT-EO). The patients comprising DVT-EO, which was the majority of earlier-onset patients, displayed increased expression of anti-viral response genes. This finding was confirmed using an independent weighted co-expression network analysis (WGCNA) of differentially expressed genes. Conclusions: We found that the majority of patients with earlier-onset disease contained elevated expression of host genes involved in the anti-viral response. Thus, susceptibility to a viral pathogen may offer one explanation why some individuals develop diverticulitis at an earlier age.

Cropping Systems in Some Drought-Prone Communities of the Northern Region of Ghana: Factors Affecting the Introduction of Rice

2014 ◽  
Vol 9 (4) ◽  
pp. 475-483 ◽  
Author(s):  
Vincent Kodjo Avornyo ◽  
◽  
Osamu Ito ◽  
Gordana Kranjac-Berisavljevic ◽  
Osamu Saito ◽  
...  
Keyword(s):  
Crop Production ◽  
Crop Yields ◽  
Cropping Systems ◽  
Average Distance ◽  
Cropping System ◽  
Principal Component ◽  
Northern Region ◽  
Northern Ghana ◽  
Cattle Production ◽  
Factors Affecting

Despite the growing demand for rice in Ghana, domestic rice production remains low, resulting in the importation of about 70% of the rice consumed in Ghana. In spite of the fact that 39-47% of the 20-28% of Ghana’s total geographic area classified as inland valley wetlands is considered suitable for rice cultivation, less than 15% is presently being used. A household survey was therefore conducted in six communities, Fihini (F), Cheshegu (C), Dabogushei (D), Kpalgum (K), Zergua (Z), and Yoggu (Y), of the Tolon district in northern Ghana in order to identify factors affecting the introduction of rice into the cropping system. Maize, groundnut, rice, and yam were found to be the four major crops grown in the communities. Overall, 64% of respondents cultivate rice, but this figure is particularly low (30%) in F and Y communities. Rice is usually combined with two other major crops, most frequently maize and yam. In C, D, and K communities, about 90% of households cultivate at least, three out of the four major crops. The interview with farmers revealed that rice yield is 0.73 t/ha on average and significantly higher in K and C (1.06 t/ha and 0.93 t/ha, respectively) than in D (0.37 t/ha). The average distance from compound houses to rice and maize fields is significantly shorter in C, D, and K. Similarly, the rate of rice introduction in C, D, and K is higher than in F, Z, and Y, suggesting that distance to inland valleys may be one of the factors that influence the incorporation of rice into the cropping systems of these communities. Principal component analysis of crop yields and cattle number for the Y community revealed that rice growers tend to have higher crop productivity while cattle production is higher among non-rice growers. Within the community, the productivity of upland crops and balance between crop production and cattle production may be important factors that influence the incorporation of rice into the cropping system.

Personality Trait Absorption: An Exploratory Study of Opportunity and Capacity in Relation to Cannabis Use

1995 ◽  
Vol 15 (1) ◽  
pp. 75-101
Author(s):  
Peter L. Nelson
Keyword(s):  
Principal Components Analysis ◽  
Principal Components ◽  
Personality Trait ◽  
Exploratory Study ◽  
Cannabis Use ◽  
Components Analysis ◽  
Relationship Of ◽  
The Relationship ◽  
Tellegen Absorption Scale ◽  
Motivation Loss

Although the Tellegen Absorption Scale has been widely employed in recent years as a measure of personality Trait Absorption, it is argued that this simple score does not sufficiently discriminate true capacity for Absorption nor does it reveal the level of opportunity made for absorptive experiencing. This study operationalizes Capacity and Opportunity as two additional subscales appended to the Tellegen scale and, by employing the technique of Principal Components Analysis, five useful sub-dimensions are generated. Following on from this Author's earlier suggestion that personality Trait Absorption may be linked to cannabis use and depression, an exploratory study was conducted into the relationship of cannabis use, gender, self-perceived motivation loss and depression to observed levels of overall Absorption as well as to levels of Capacity and Opportunity for absorptive experiencing.

scholarly journals Density and characteristics of Green mussels (Perna viridis) in Percut Sei Tuan coastal, North Sumatra, Indonesia

2021 ◽  
Vol 22 (2) ◽  
Author(s):  
IPANNA ENGGAR SUSETYA ◽  
Mohammad Basyuni ◽  
DESRITA DESRITA ◽  
ARIDA SUSILOWATI ◽  
TADASHI KAJITA
Keyword(s):  
Frequency Distribution ◽  
Principal Component ◽  
Perna Viridis ◽  
Resource Potential ◽  
Pattern Frequency ◽  
Physical Chemical ◽  
Bottom Waters ◽  
Relationship Of ◽  
The Relationship ◽  
North Sumatra

Percut Sei Tuan is a coastal area on the east coast of North Sumatra which has a lot of natural resource potential, one of them which is green mussels (Perna viridis). Green mussels have many benefits, namely for consumption, cultivation and bioindicator. This study aimed to determine the density, habitat location, growth pattern, frequency distribution of green mussels, physical-chemical parameters of water, a substrate of the bottom waters, and the relationship of green clams density to water and substrate parameters. The study was conducted in July-September 2020. Data analysis included density, the relationship of total length and weight of green mussels, the frequency distribution of shell lengths, and Principal Component Analysis (PCA). The results showed that the density of green mussels at stations I, II, and III were 352 ind/m2, 3 ind/m2, and 1 ind/m2, respectively. The relationship between the length and weight of green shells shows that the growth was negative allometric. The water condition, seen from the physical, chemical, and substrate parameters, was still suitable for P. viridis. Water and substrate parameters that were positively related to the density of green mussels were water temperature, nitrate, phosphate, C-organic, percentage of silt and clay. Parameters that were negatively related were salinity, pH, and percentage of sand in the bottom substrate. The present study suggested that Station I was an appropriate area for the growth and reproduction of green mussels.

scholarly journals A-44 Categorical Errors on the Benton Visual Retention Test are Systemically Related to Specific Factorial Components of Intelligence

2019 ◽  
Vol 34 (6) ◽  
pp. 903-903
Author(s):  
M Gukasyan ◽  
J Moses ◽  
K Greenman
Keyword(s):  
Principal Component ◽  
Memory Errors ◽  
Medical Problems ◽  
Error Type ◽  
Cognitive Domains ◽  
Nonverbal Memory ◽  
Benton Visual Retention Test ◽  
Systematic Relationships ◽  
Relationship Of ◽  
The Relationship

Abstract Objective We investigated the factorial relationship of the six categories of memory errors of the BVRT to the four factorial variables of the WAIS to determine the relationship between cognitive and nonverbal memory variables. Methods A sample of 134 diagnostically mixed ambulatory American Veteran patients with a wide variety of mixed neuropsychiatric diagnoses and with or without general medical problems who had completed the WAIS-3, and the BVRT were examined. There were no demographic or diagnostic exclusion criteria. Results The 6 types of BVRT memory errors (omissions, distortions, perseverations, rotations, misplacements, and size errors) were factored using principal component analysis. The four WAIS 3 and six BVRT components were jointly factored to examine for systematic relationships between memory and cognitive domains. The analysis identified specific factorial relationships of BVRT error type to each of the four factorial components of the WAIS. POI was related to rotation errors, VCI was related to size errors, PSI specifically related to omissions and WMI to distortions. Misplacement and perseveration errors were related to each other but not to factorial constructs of the WAIS. Conclusions There are specific and robust relationships among BVRT errors and dimensional cognitive variables.

scholarly journals Human Capital and Theory of Planned Behavior: Unraveling Entrepreneurial Intentions of IT Students in Pakistan

2019 ◽  
Vol 6 (2) ◽  
pp. 23
Author(s):  
Hina Munir ◽  
Cai Jianfeng ◽  
Wang Miao ◽  
Sidra Ramzan
Keyword(s):  
Human Capital ◽  
Theory Of Planned Behavior ◽  
Planned Behavior ◽  
Principal Component ◽  
Entrepreneurial Intentions ◽  
Entrepreneurial Opportunities ◽  
Tpb Model ◽  
Cognitive Decision ◽  
Relationship Of ◽  
The Relationship

Human capital variables (such as practical learning, education and experience) affect cognitive decision making abilities of individuals which permit them to identify entrepreneurial opportunities. Therefore, this study aims to establish an integrated model considering the theory of planned behavior (TPB) and human capital variables considering Pakistan as a sample, especially targeting IT major students. Data for the study were collected from 227 IT major students from seven universities from different provinces of Pakistan. Principal component analysis and hierarchical multiple regression analysis are used for data analysis. The findings of the study confirm the validity of TPB model in predicting entrepreneurial intentions among IT major students. This study further confirms the effect of human capital variables within TPB framework and demonstrates that prior entrepreneurial exposure (PEE) and prior familial exposure (PFE) have an impact on attitude towards entrepreneurship. Furthermore, the relationship of PEE and PFE in predicting entrepreneurial intentions was found insignificant and significant respectively. This is one of the first studies which explore entrepreneurial intentions among IT major students regarding a developing country. Furthermore, this study provides valuable insights to practitioners and educators in Pakistan for consideration of human capital variables’ influence on entrepreneurial behavior and entrepreneurial intentions among IT major students. 

Studies on lichen-dominated systems. X. The sedge meadows of the coastal raised beaches

1974 ◽  
Vol 52 (8) ◽  
pp. 1947-1972
Author(s):  
K. A. Kershaw
Keyword(s):  
Principal Component Analysis ◽  
Water Table ◽  
Principal Component ◽  
Component Analysis ◽  
Beach Ridges ◽  
Plant Associations ◽  
Sedge Meadows ◽  
Relationship Of ◽  
Raised Beaches ◽  
The Relationship

The relationship of the sedge meadows lying between raised-beach ridges at the Pen Island site in NW Ontario is described using principal-component analysis. Three major trends are detected following moss hummock formation, depth of water table, and pH. The data also show a progressive sequence from the young meadows with few hummocks and high pH to the older meadows where marked hummock formation has occurred and where the overall pH is lower. Six noda have subsequently been extracted as the central plant associations characteristic of the area.

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