scholarly journals Analysis of call detail records to inform the COVID-19 response in Ghana—opportunities and challenges

Data & Policy ◽  
2021 ◽  
Vol 3 ◽  
Author(s):  
Tracey Li ◽  
Rachel Bowers ◽  
Omar Seidu ◽  
Gloria Akoto-Bamfo ◽  
David Bessah ◽  
...  
Keyword(s):  
Direct Impact ◽  
Population Movements ◽  
Direct Communication ◽  
Private Partnership ◽  
Population Distributions ◽  
Study Population ◽  
The Times ◽  
Statistical Systems ◽  
Competing Priorities ◽  
Call Detail Records

Abstract Telecommunications data are being explored by many countries as a new source of data that can be incorporated into their national statistical systems. In particular, “mobile positioning data” are increasingly being used to study population movements and population distributions. However, the legal, ethical, and technical complexities of working with this type of data often pose many barriers, which can prevent the data from being used at the times when it is most urgently needed. We demonstrate how having a robust public–private partnership framework, a privacy-preserving technical setup, and a communications strategy already in place, prior to an emergency, can enable governments to harness the advantages of telecommunications data at the times when it is most valuable. However, even once these foundations are in place, the challenges of competing priorities, managing expectations, and maintaining communication with data consumers during a pandemic mean that the potential of the data is not automatically translated into direct impact. This highlights the importance of sensitisation exercises, targeted at potential data users, to make clear the potential and limitations of the data, as well as the importance of being able to maintain direct communication with data users. The views expressed in this work belong solely to the authors and should not be interpreted as the views of their institutions.

scholarly journals Estimating the movements of terrestrial animal populations using broad-scale occurrence data

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Sarah R. Supp ◽  
Gil Bohrer ◽  
John Fieberg ◽  
Frank A. La Sorte
Keyword(s):  
Population Level ◽  
Sampling Bias ◽  
Population Movements ◽  
Spatial And Temporal Scales ◽  
Temporal Sampling ◽  
Multiple Observations ◽  
Occurrence Data ◽  
Population Distributions ◽  
Animal Populations ◽  
Broad Scale

AbstractAs human and automated sensor networks collect increasingly massive volumes of animal observations, new opportunities have arisen to use these data to infer or track species movements. Sources of broad scale occurrence datasets include crowdsourced databases, such as eBird and iNaturalist, weather surveillance radars, and passive automated sensors including acoustic monitoring units and camera trap networks. Such data resources represent static observations, typically at the species level, at a given location. Nonetheless, by combining multiple observations across many locations and times it is possible to infer spatially continuous population-level movements. Population-level movement characterizes the aggregated movement of individuals comprising a population, such as range contractions, expansions, climate tracking, or migration, that can result from physical, behavioral, or demographic processes. A desire to model population movements from such forms of occurrence data has led to an evolving field that has created new analytical and statistical approaches that can account for spatial and temporal sampling bias in the observations. The insights generated from the growth of population-level movement research can complement the insights from focal tracking studies, and elucidate mechanisms driving changes in population distributions at potentially larger spatial and temporal scales. This review will summarize current broad-scale occurrence datasets, discuss the latest approaches for utilizing them in population-level movement analyses, and highlight studies where such analyses have provided ecological insights. We outline the conceptual approaches and common methodological steps to infer movements from spatially distributed occurrence data that currently exist for terrestrial animals, though similar approaches may be applicable to plants, freshwater, or marine organisms.

The Influence of Compensation, Motivation, and Commitment to Teacher Performance At Junior High School Somba Opu Sungguminasa, Gowa District

2019 ◽  
Vol 1 (1) ◽  
pp. 43-52
Author(s):  
Muhtazib Muhtazib
Keyword(s):  
High School ◽  
High School Teachers ◽  
Junior High School ◽  
Junior High ◽  
Teacher Performance ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Junior High School Teachers ◽  
Study Population ◽  
The Times

Student achievement can be determined by the performance of professional teachers, so teachers must be able to improve their professional in responding to the challenges of the times so rapidly. The purpose of this study was to determine and analyze the effect of compensation, motivation, and commitment to teacher performance at Junior High School Somba Opu Sungguminasa, Gowa District, and to find out the dominant factors influencing. The study population was all teachers at at Junior High School Somba Opu Sungguminasa, Gowa District amounting to 32 people. Because the population is small or less than 100 people, the entire population is sampled (100% sample). The analytical method used is multiple linear regression analysis. The results showed that simultaneously and partially all independent variables consisting of compensation, motivation, and commitment had a positive and significant effect on the performance of Somba Opu Sungguminasa Junior High School teachers, Gowa District, where compensation was the most significant factor influencing.

scholarly journals Managing Public – Private Partnership Market in the Times of Economic crisis

2014 ◽  
Vol 5 (2) ◽  
pp. 63-74 ◽  
Author(s):  
Joanna K Krześ-Dobieszewska
Keyword(s):  
Economic Crisis ◽  
Financial Institution ◽  
Public Private Partnership ◽  
Point Of View ◽  
The European Union ◽  
Private Partnership ◽  
The Public ◽  
The Times ◽  
Universal Nature

The article focuses on the issues and problems caused by the economic crisis of 2008 for public-private partnership (PPP). The challenges faced are presented from the point of view of a public entity, a private partner and a financial institution, as well as the relationships between these parties and the influence of economic issues on these relations. The most crucial of these challenges seems to be: the pressure on public finance and growing difficulties in financing the public infrastructural investments, the rise of the economic risk of investments and the necessity of sufficient and appropriate transfer and management of risk, and finally – the lack of interest of financial institutions to finance long-term liabilities. The aim of the author is to provide a precise description and diagnosis of the issues mentioned above, which might improve the strategic management of PPP market as well as management of projects. The article is based on experience, documents and working papers concerning the countries and markets of the European Union but the presented conclusions should be of more universal nature.

scholarly journals STUDI PELACAKAN LULUSAN PROGRAM STUDI D3 TEKNIK SIPIL UNIVERSITAS NEGERI JAKARTA

Jurnal PenSil ◽  
2015 ◽  
Vol 4 (1) ◽  
pp. 1-9
Author(s):  
Andri Aprianto ◽  
Arris Maulana ◽  
Nira Nasution
Keyword(s):  
Civil Engineering ◽  
Waiting Period ◽  
Organizational Experience ◽  
The World ◽  
Work World ◽  
Study Population ◽  
The Times ◽  
First Job ◽  
First Time

This study aims to gain an overview and knowledge of the graduates of job profilesthat include the type of work that occupied areas, the waiting period to get a job, how to get a job, the amount of earned income, and employment status. The research was conducted on D3 in Civil Engineering who graduated in odd semester of 2005/2006 until the second semester 2009/2010. Sampling was done by purposive sampling. The study population numbered 113 people. The research sample consists of 29 people. This research uses descriptive method with the waythe survey. From the results of this study found that graduates who pursue work in the field of civilengineering work is now 82,76 %, while those working outside the field of civil engineering as much as 17,24 %. And for the first time job as much as 79,31 %worked in the field of civil engineering, while 20,69 % outside of civil engineering.Employment status of graduates on the job is now 55% is fixed and for the work of the first 72,41 % of the contract. Large salary in first job 48,28 % range between Rp 1.500.000 - Rp 2.500.000 per month, and the work that is now 27.58 % ranges between Rp 1.500.000 - Rp 2.500.000 and Rp 3.500.000 - Rp 4.500.000 per month. Graduation GPA of the most sought after companies ranging from 2,51-3,00. Organizational experience during campus 77.78 % were helped in the work world 48.27% obtained employment information from the internet. The waiting period to get a job at 86.21% is less than 3 months. The conclusion from this study that the quality of the D3 in Civil Engineering work has begun to be recognized in the world. From the field of employment, graduates can work not only on earth but also can ketekniksipilan outside of civil engineering.Although most of the graduates are working in the world of civil engineering. And the expected results of this research can provide input to the future for D3 in Civil Engineering courses to be able to better tailor its curriculum current with the times to produce future graduates more competitive in the world of work.

Problems and Prospects in Northeastern Prehistoric Ceramic Studies

1987 ◽  
Vol 8 (2) ◽  
pp. 97-123 ◽  
Author(s):  
Jay F. Custer
Keyword(s):  
New England ◽  
Late Woodland ◽  
Middle Woodland ◽  
Research Topics ◽  
Population Movements ◽  
Middle Atlantic ◽  
Technological Developments ◽  
Study Population ◽  
Ceramic Design ◽  
Design Motifs

Three major research topics can be addressed using Northeastern ceramic data. First, different technological developments are seen in the earliest ceramics. Flat-bottomed wares develop in the Middle Atlantic and coiled, conoidal wares are earliest in New England. Second, the Abbott Farm and Delmarva Adena complexes of the central Middle Atlantic can be distinguished from surrounding Early and Middle Woodland complexes on the basis of ceramics; social complexity may be related to ceramic traits. Finally, Late Woodland ceramic design motifs and design “grammars” can be used to distinguish ethnic groups and study population movements throughout the Northeast.

scholarly journals Identification of Differentially Expressed Genes Associated with Prognosis of B Acute Lymphoblastic Leukemia

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Idalia Garza-Veloz ◽  
Margarita L. Martinez-Fierro ◽  
Jose Carlos Jaime-Perez ◽  
Karol Carrillo-Sanchez ◽  
Maria Guadalupe Ramos-Del Hoyo ◽  
...  
Keyword(s):  
Acute Lymphoblastic Leukemia ◽  
Mononuclear Cells ◽  
Lymphoblastic Leukemia ◽  
Prognostic Significance ◽  
Type B ◽  
Peripheral Blood Mononuclear ◽  
Independent Prognostic Significance ◽  
Study Population ◽  
Polymerase Chain ◽  
The Times

Background.Acute lymphoblastic leukemia type B (B-ALL) is a neoplastic disorder with high mortality rates. The aim of this study was to validate the expression profile of 45 genes associated with signaling pathways involved in leukemia and to evaluate their association with the prognosis of B-ALL.Methods.219 samples of peripheral blood mononuclear cells obtained from 73 B-ALL patients were studied at diagnosis, four, and eight weeks after starting treatment. Gene expression was analyzed by quantitative real-time polymerase chain reaction.Results.Normalized delta Cq values of 23 genes showed differences between B-ALL and controls at diagnosis time (Pvalues < 0.05). There were significant associations between B-ALL patients relapse/death and the expression levels of IL2RA, SORT1, DEFA1, and FLT3 genes at least in one of the times evaluated (Pvalues < 0.05 and odds ratio ranges: 3.73–27). The association between FLT3 deregulation and relapse/death was a constant in the times studied and their overexpression significantly increased the odds of relapse/death in a range of 3.73 and 6.05 among study population (Pvalues < 0.05).Conclusions.Overexpression of FLT3 and DEFA1 genes retained independent prognostic significance for B-ALL outcome, reflected as increased risks of relapse/death among the study population.

The Eclipsing Binary WX Eridani

1979 ◽  
Vol 46 ◽  
pp. 385
Author(s):  
M.B.K. Sarma ◽  
K.D. Abhankar
Keyword(s):  
Light Curve ◽  
Spectral Type ◽  
Orbital Period ◽  
Primary Component ◽  
Light Curves ◽  
Absorption Feature ◽  
Primary Star ◽  
Eclipsing Binary ◽  
The Times ◽  
Phase Angles

AbstractThe Algol-type eclipsing binary WX Eridani was observed on 21 nights on the 48-inch telescope of the Japal-Rangapur Observatory during 1973-75 in B and V colours. An improved period of P = 0.82327038 days was obtained from the analysis of the times of five primary minima. An absorption feature between phase angles 50-80, 100-130, 230-260 and 280-310 was present in the light curves. The analysis of the light curves indicated the eclipses to be grazing with primary to be transit and secondary, an occultation. Elements derived from the solution of the light curve using Russel-Merrill method are given. From comparison of the fractional radii with Roche lobes, it is concluded that none of the components have filled their respective lobes but the primary star seems to be evolving. The spectral type of the primary component was estimated to be F3 and is found to be pulsating with two periods equal to one-fifth and one-sixth of the orbital period.

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