scholarly journals Comparative Study on Volume Estimation Using a Model with one and Model with two Independent Variables in Meru/USA Forest Plantation, Northern Tanzania

2020 ◽  
Vol 2 (2) ◽  
pp. 54-63
Author(s):  
Lucas Kivuyo Likingurainey ◽  
Canisius John Kayombo ◽  
Almas Kashindye
Keyword(s):  
Volume Estimation ◽  
Systematic Sampling ◽  
Independent Variables ◽  
Northern Tanzania ◽  
Standing Trees ◽  
Independent Variable ◽  
Volume Equation ◽  
Number Of Individuals ◽  
Two Independent Variables

Worldwide, the management of forests has been known to rely on the determination of the size of tree stands. The size of tree stands is determined based on dimensions that include the diameter and the marketable height through the volume equation. The volume is often evaluated from the diameter. It can however also be measured directly on felled trees or logs. It is difficult to obtain the volume for the stand trees directly, so, models were developed to tackle the situation based on standing trees’ variables like diameter and height in order to simplify volume estimation because it is more closetful and difficult to measure direct volumes for standing trees. The general objective of this study was to estimate trees’ volume using one and two independent variables. Systematic sampling was used to allocate the plots on which the diameters of the trees were measured, and counted for the number of individuals (trees stems). The Relascope was used to assign the trees to be considered in the set plot while a diameter tape measure was used for diameter (DBH) measurements and the already measured trees were marked (using marker pens, paints and chalk). Data recording sheets and a handheld GPS were used for recording coordinates. The study findings revealed that having a model with two independent variables; DBH and height(H) is more accurate compared to the model with one independent variable.

Online viewers’ choices over advertisement number and duration

2020 ◽  
Vol 14 (2) ◽  
pp. 215-238
Author(s):  
Stephen Nettelhorst ◽  
Laura Brannon ◽  
Angela Rose ◽  
Whitney Whitaker
Keyword(s):  
Exposure Time ◽  
Design Methodology ◽  
Persuasive Messages ◽  
Content Type ◽  
Independent Variables ◽  
Research Designs ◽  
Total Exposure Time ◽  
Online Simulations ◽  
Independent Variable ◽  
Two Independent Variables

Purpose The purpose of this study is to investigate online viewers’ preferences concerning the number and duration of video advertisements to watch during commercial breaks. The goal of the investigations was to assess whether online viewers preferred watching a fewer number of advertisements with longer durations or a greater number of advertisements with shorter durations. Design/methodology/approach Two studies used experimental research designs to assess viewers’ preferences regarding advertisements. These designs used two independent variables and one dependent variable. The first independent variable manipulated the type of choice options given to online viewers (e.g. one 60 s or two 30 s advertisements). The second independent variable manipulated when the choice was given to online viewers (i.e. at the beginning of the viewing experience or in the middle of the experience). The dependent variable measured viewers’ choices concerning their preferred advertisement option. Findings The results across both studies found that participants made choices that minimized total advertisement exposure time when possible. When minimizing total exposure time was not possible, participants made choices that minimized the number of exposures instead. Originality/value These investigations extend the literature on advertisement choice by examining online viewers’ preferences about the format of their advertising experience rather than the content of the persuasive messages themselves. In addition, these investigations provide value by investigating viewers’ responses to stimuli within realistic online simulations rather than abstract hypotheticals.

An Investigation of the Effect of Latency on the Operator’s Trust and Performance for Manual Multi-robot Teleoperated Tasks

2017 ◽  
Vol 61 (1) ◽  
pp. 390-394 ◽  
Author(s):  
Hunter Rogers ◽  
Amro Khasawneh ◽  
Jeffery Bertrand ◽  
Kapil Chalil Madathil
Keyword(s):  
Confidence Level ◽  
Search And Rescue ◽  
The Other ◽  
Repeated Measure ◽  
Independent Variables ◽  
Subjective Workload ◽  
Dependent Variables ◽  
Independent Variable ◽  
And Performance ◽  
Two Independent Variables

Latency is an important factor when conducting teleoperated missions. This study investigates the effects of latency on a set of dependent variables: performance (measured by time and number of errors), subjective workload, trust, and usability. These measures were tested in a simulated search-and-rescue mission over two levels of two independent variables. One independent variable was the number of robots – one or two (within-subject), and the other independent variable was latency – simulations with and without latency (between-subject.) The significant effect of the independent variables on the dependent variables were checked using repeated measure two-way ANOVA with a confidence level of 95%. The data determined any significant effects that latency and/or the number of robots had on such factors as errors, dependability, reliability, harmful outcomes, temporal demand, and frustration.

scholarly journals Analisis Kinerja Perangkat Desa di Kabupaten Lumajang

2018 ◽  
Vol 8 (2) ◽  
pp. 42-50
Author(s):  
Moh. Hudi Setyobakti
Keyword(s):  
Work Ethic ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Coefficient Of Determination ◽  
Analysis Techniques ◽  
Independent Variables ◽  
The Government ◽  
The Village ◽  
Two Independent Variables

Village apparatus is an important factor in the running of the government process in the village. Therefore an analysis is needed to determine the factors that affect the performance of the village apparatus. There are two independent variables in this study, namely; work ethic and work discipline. In the process this study uses village tools in Lumajang District as a population with 64 respondents. Furthermore, for data analysis techniques using multiple linear regression analysis, the results of the analysis show that both work ethic and motivation have a significant effect on the performance of the village apparatus. This is supported by the coefficient of determination of 73.4% so that only 26.6% remains for other variables that affect the performance of village equipment. This research is expected to contribute to the development of studies in management science, especially human resource management so that it can become a reference to further research.

Comparative Study on Treatment Bioscouring Optimization with and without Ultrasound for 50 % of Cotton + 50 % of Flax Materials

2018 ◽  
Vol 27 ◽  
pp. 111-117
Author(s):  
Monica Pustianu ◽  
Mihaela Dochia ◽  
Simona Gavrilaş ◽  
Daniel Tomescu
Keyword(s):  
Weight Loss ◽  
Comparative Study ◽  
Treatment Time ◽  
Enzyme Concentration ◽  
Second Order ◽  
Independent Variables ◽  
Ultrasound Energy ◽  
Presence And Absence ◽  
Two Independent Variables

The research presents a comparative study regarding the optimization of two bioscouring treatments applied on 50 % of flax+50 % of cotton blended material in presence and absence of the ultrasound energy The treatments optimization was made by using a central, rotatable second order compound program with two independent variables: enzyme concentration and treatment time. The data obtained after determination of the weight loss of the treated samples fabrics were used afterwards for the bioscouring treatments optimization.

Physiological Interaction, Its Mathematical Expression

Weed Science ◽  
1980 ◽  
Vol 28 (5) ◽  
pp. 573-579 ◽  
Author(s):  
Robert E. Drury
Keyword(s):  
Three Dimensional ◽  
Mathematical Expression ◽  
Continuous Functions ◽  
Fresh Weight ◽  
Regression Estimate ◽  
Independent Variables ◽  
Algebraic Expressions ◽  
Independent Variable ◽  
Two Parameter ◽  
Two Independent Variables

The concept of interaction arises in the context of continuous functions. Verbally, it is the action of one independent variable on the action of another, and vice versa, on a dependent variable. Quantitatively, it is the second partial derivative of a function with respect to two independent variables. Misconceptions have arisen from attempts to understand action and interaction in discrete terms. The algebraic expressions for the actions of diuron and phorate on the fresh weight of oats and their interaction were determined from the regression polynomial and plotted in three-dimensional graphs. Three other mutually incompatible methods of assessing interaction, namely, the Colby (with its modification, regression estimate), the two-parameter, and the topographical methods were evaluated.

scholarly journals KEPEMIMPINAN SITUASIONAL DAN KOMUNIKASI INTERPERSONAL DALAM MENINGKATKAN KOMITMEN GURU

2018 ◽  
Vol 6 (2) ◽  
pp. 607-616
Author(s):  
Heni Hikmayani Fauzia ◽  
Bibin Rubini ◽  
Widodo Sunaryo
Keyword(s):  
Organizational Commitment ◽  
Correlation Analysis ◽  
Interpersonal Communication ◽  
Random Sampling ◽  
Situational Leadership ◽  
West Java ◽  
Islamic School ◽  
Independent Variables ◽  
Independent Variable ◽  
Two Independent Variables

This research outlines the correlation between the headmasters situational leadership and interpersonal communication on organizational commitment. The research was conducted in private islamic school in the Sagaranten Sukabumi, West Java,Indonesia. Survey and data were conducted by applying regression and correlation analysis to test the correlation of two independent variables of situational leadership and interpersonal communication to one independent variable of organizational commitment. Tested on the level of confident of 0,05 and 0,01 to 109 teachers by using proportional random sampling, the result reveals that situational leadership can improve organizational commitment up to 18,75%, interpersonal communication contributes 10,47%. It can be inferred that organizational commitment can be enhanced through situational leadership and interpersonal communication.Keywords : Situasional Leadership, Interpersonal Communication , Organizational Commitment

scholarly journals Bivariate Interpolation in Rectangular Form

2020 ◽  
pp. 329-335
Author(s):  
Daw San San Nwe ◽  
Daw Hla Yin Moe ◽  
Daw Zin Nwe Khaing
Keyword(s):  
Lagrange Interpolation ◽  
Interpolation Formula ◽  
Single Variable ◽  
Bivariate Interpolation ◽  
Independent Variables ◽  
Rectangular Form ◽  
Lagrange Interpolation Formula ◽  
Independent Variable ◽  
Two Independent Variables

The purpose of this paper is to derive lagrange interpolation formula for a single variable and two independent variables. Firstly, single variable interpolation is derived and then two independent variable interpolation derived. Some practical problems are computed by virtue of these interpolation formula.

Efek Motivasi Dan Disiplin Kerja Terhadap Kinerja Karyawan Di KJKS BMT Mandiri Sejahtera Karang Cangkring Jawa TImur

AKADEMIKA ◽  
2016 ◽  
Vol 10 (2) ◽  
pp. 279-287
Author(s):  
Misbahul Khoir
Keyword(s):  
Quantitative Method ◽  
Employee Performance ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Independent Variables ◽  
Significant Independent Variable ◽  
Independent Variable ◽  
Or Organization ◽  
Variable Performance ◽  
Two Independent Variables

High employee performance can be achieved if all the elements that exist within the agency or organization well integrated, and it therefore requires the    support of motivation and discipline in order to improve the employee's performance. The purpose of this study is to analyze and determine the effect of motivation and discipline to employee performance. This study aimed to examine the effect of motivation and discipline to employee performance either partially or simultaneously on KJKS Bmt Mandiri Sejahtera Karangcangkring East Java. The method used is quantitative method with a sample of 36 respondents. Data were collected by using questionnaires and data analysis used is multiple linear regression analysis. The results showed regression equation as follows: Y = 1,757 + 0.497X1 + 0.434X2 where variable Performance (Y), variable motivation (X1), variable working Discipline (X2). Hypothesis testing using the t test showed a significant independent variable partial effect on the dependent variable. Then known calculated F value of 44 275> 3:28 with a significance of 0.000 <0.05, meaning that the two independent variables studied simultaneously affect the performance of the variable that is equal to 72.9%. While the remaining 27.1% is influenced by other variables not included in this study.

Differences Between Adjustment to and Enjoyment of Retirement

1983 ◽  
Vol 2 (1) ◽  
pp. 3-8 ◽  
Author(s):  
Michael J. MacLean
Keyword(s):  
Family Interaction ◽  
Psychological Reactions ◽  
Independent Variables ◽  
Dependent Variables ◽  
Psychological Reaction ◽  
Significant Independent Variable ◽  
Independent Variable ◽  
Two Independent Variables

ABSTRACTMost research on psychological reactions to retirement considers adjustment as the main dependent variable. This paper suggests that enjoyment of retirement may be another psychological reaction to this phase of life. Differences between adjustment to and enjoyment of retirement for a sample of retired professional men are explored with respect to different phases of retirement. It was found that these two dependent variables are related but somewhat different reactions to retirement. Two independent variables, attitudes toward retirement and family interaction, contribute to both adjustment to and enjoyment of retirement. However, income was a significant predictor of adjustment whereas personality was a significant independent variable for the prediction of enjoyment of retirement. These results suggest that further research should consider other dependent variables in attempting to understand the psychological complexities related to the retirement role.

scholarly journals Polynomials biorthogonal to Appell's polynomials

1974 ◽  
Vol 11 (2) ◽  
pp. 181-195 ◽  
Author(s):  
Edward D. Fackerell ◽  
R.A. Littler
Keyword(s):  
Independent Variables ◽  
Triangular Region ◽  
Two Independent Variables ◽  
Standing Problem

We present the solution of a long-standing problem, namely, the determination of a set of polynomials in two independent variables which are biorthogonal over a triangular region to a set of polynomials previously introduced by Appell. Some elementary properties of our polynomials are investigated.

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