scholarly journals De utryghedsmæssige konsekvenser af udsathed for kriminalitet i Danmark

2020 ◽  
Vol 107 (1) ◽  
pp. 41-66
Author(s):  
Rune H. Scherg ◽  
Anders Ejrnæs
Keyword(s):  
Statistical Models ◽  
Statistical Power ◽  
Demographic Characteristics ◽  
Causal Inferences ◽  
Cross Sectional ◽  
Current Article ◽  
The Subject ◽  
Cross Sectional Studies ◽  
The Impact ◽  
Do So

AbstractThis article examines the consequences of victimisation in relation to feeling of safety in Denmark.2 Using various statistical models, we address two general questions: First, how do different victimisation patterns affect victims’ feelings of safety, and second, how do victims’ demographic characteristics modify the consequences of victimisation in relation to feelings of safety. We analyse panel data from the Danish Police’s Safety Survey (2014-2018) linked to Danish register data. Although there is an abundance of international research about the victimfear nexus, there are still gaps in our current understanding of this relationship. First, research on the impact of victimization on feelings of safety is often based on cross-sectional studies, which don’t allow for solid causal inferences. Second, potential differences between different groups of victims have not been thoroughly analysed as few studies have had the statistical power to do so. Last, there is a scarcity of Scandinavian studies on the subject. The current article shows that victimization has a consistent effect on feelings of safety. However, the size of the effect is generally moderate and short-lived. The article also demonstrates that the impacts of victimization are disproportionately distributed across different groups of victims.

scholarly journals Assessment of Daily Living of Patients with Spinal Cord Injury: A Cross-Sectional Study in Kermanshah

2021 ◽  
Vol 8 (3) ◽  
Author(s):  
Masoud Hatefi ◽  
AmirHosein Meisami ◽  
Alalleh Dalvand ◽  
Milad Borji
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Daily Living ◽  
Cross Sectional Study ◽  
Demographic Characteristics ◽  
Daily Activities ◽  
Sectional Study ◽  
Cross Sectional ◽  
Cord Injury ◽  
The Impact

Background: Spinal cord injuries (SCI) are a variety of chronic diseases that various causes such as trauma may contribute to its onset. One of the problems in these patients is the problem of physical activity and, consequently, daily activities. Objectives: This study aimed to assess daily living of patients with SCI. Methods: In this descriptive cross-sectional study in 2019, 120 patients with SCI in Kermanshah were included in the study using purposive sampling. The instruments used in this study fell into two parts. One part included the demographic characteristics of the SCI patients, and the other part was a questionnaire of the rate of the Impact on Participation and Autonomy questionnaire (IPA-P). Data were analyzed by SPSS software version 16 using descriptive tests such as mean and standard deviation. Results: The result showed there was a significant relationship between demographic characteristics such as education (P < 0.007), time of spinal cord injury (P < 0.01), and income (P = 0.000). Also, the results showed there was a relationship between Autonomy and Participation, and the age of patients and their autonomy and participation decreased with age (P = 0.000, R = 0.72). Most of the patients had severe problems with daily activities. Also, most patients had very poor scores in relation to daily living activities. Conclusions: Considering the low rate of participation and autonomy in patients with SCI, it is suggested to conduct studies aimed at improving their self-care and social participation.

Limitations of Fixed-Effects Models for Panel Data

2019 ◽  
Vol 63 (3) ◽  
pp. 357-369 ◽  
Author(s):  
Terrence D. Hill ◽  
Andrew P. Davis ◽  
J. Micah Roos ◽  
Michael T. French
Keyword(s):  
Panel Data ◽  
Fixed Effects ◽  
Statistical Power ◽  
Unobserved Heterogeneity ◽  
Critical Discussion ◽  
Causal Inferences ◽  
Cross Sectional ◽  
Fixed Effects Models ◽  
Time Invariance ◽  
Type Ii Errors

Although fixed-effects models for panel data are now widely recognized as powerful tools for longitudinal data analysis, the limitations of these models are not well known. We provide a critical discussion of 12 limitations, including a culture of omission, low statistical power, limited external validity, restricted time periods, measurement error, time invariance, undefined variables, unobserved heterogeneity, erroneous causal inferences, imprecise interpretations of coefficients, imprudent comparisons with cross-sectional models, and questionable contributions vis-à-vis previous work. Instead of discouraging the use of fixed-effects models, we encourage more critical applications of this rigorous and promising methodology. The most important deficiencies—Type II errors, biased coefficients and imprecise standard errors, misleading p values, misguided causal claims, and various theoretical concerns—should be weighed against the likely presence of unobserved heterogeneity in other regression models. Ultimately, we must do a better job of communicating the pitfalls of fixed-effects models to our colleagues and students.

The Impact of Volute Versus Collector on Centrifugal Compressor Performance

2002 ◽  
Author(s):  
Y. I. Biba
Keyword(s):  
3D Model ◽  
Internal Flow ◽  
Performance Measurements ◽  
Cross Sectional ◽  
Flow Rates ◽  
Computational Fluid Dynamics Cfd ◽  
Compressor Performance ◽  
The Subject ◽  
Cfd Analyses ◽  
The Impact

As part of a revamp or rerate study, an investigation was undertaken to assess the impact of a collector design versus a volute on compressor performance. The subject compressor was a single stage, axial inlet configuration with a discharge collector rather than the more commonly used scroll volute. The primary distinction between the collector and volute is that the collector cross sectional area is constant at all circumferential locations. A complex 3D model containing the inlet, impeller, low solidity diffuser (LSD), and collector was built. A similar model was also created where the volute was substituted for the collector. Computational Fluid Dynamics (CFD) analyses were performed using these models with results generated at different flow rates. Computational results are presented and compared to test data for collector configuration. The test included standard performance measurements as well as more detailed internal flow data, allowing a credible comparison with the CFD results. Conclusions are drawn with respect to potential compromises in choosing a collector versus a volute.

scholarly journals Evidence for Residual Immunity to Smallpox After Vaccination and Implications for Re-emergence

2019 ◽  
Vol 184 (11-12) ◽  
pp. e668-e679 ◽  
Author(s):  
Mohana Priya Kunasekaran ◽  
Xin Chen ◽  
Valentina Costantino ◽  
Abrar Ahmad Chughtai ◽  
Chandini Raina MacIntyre
Keyword(s):  
Immunological Memory ◽  
Childhood Vaccination ◽  
Smallpox Vaccination ◽  
Cross Sectional ◽  
Immune Correlates ◽  
Modeling Studies ◽  
Cross Sectional Studies ◽  
Duration Of Protection ◽  
Antibody Levels ◽  
The Impact

Abstract Introduction Smallpox has been eradicated but advances in synthetic biology have increased the risk of its re-emergence. Residual immunity in individuals who were previously vaccinated may mitigate the impact of an outbreak, but there is a high degree of uncertainty about the duration and degree of residual immunity. Both cell-mediated and humoral immunity are thought to be important but the exact mechanisms of protection are unclear. Guidelines usually suggest vaccine-induced immunity wanes to zero after 3–10 years post vaccination, whereas other estimates show long term immunity over decades. Materials and Methods A systematic review of the literature was conducted to quantify the duration and extent of residual immunity to smallpox after vaccination. Results Twenty-nine papers related to quantifying residual immunity to smallpox after vaccination were identified: neutralizing antibody levels were used as immune correlates of protection in 11/16 retrospective cross-sectional studies, 2/3 epidemiological studies, 6/7 prospective vaccine trials and 0/3 modeling studies. Duration of protection of &gt;20 years was consistently shown in the 16 retrospective cross-sectional studies, while the lowest estimated duration of protection was 11.7 years among the modeling studies. Childhood vaccination conferred longer duration of protection than vaccination in adulthood, and multiple vaccinations did not appear to improve immunity. Conclusions Most studies suggest a longer duration of residual immunity (at least 20 years) than assumed in smallpox guidelines. Estimates from modeling studies were less but still greater than the 3–10 years suggested by the WHO Committee on International Quarantine or US CDC guidelines. These recommendations were probably based on observations and studies conducted while smallpox was endemic. The cut-off values for pre-existing antibody levels of &gt;1:20 and &gt;1:32 reported during the period of endemic smallpox circulation may not be relevant to the contemporary population, but have been used as a threshold for identifying people with residual immunity in post-eradication era studies. Of the total antibodies produced in response to smallpox vaccination, neutralizing antibodies have shown to contribute significantly to immunological memory. Although the mechanism of immunological memory and boosting is unclear, revaccination is likely to result in a more robust response. There is a need to improve the evidence base for estimates on residual immunity to better inform planning and preparedness for re-emergent smallpox.

scholarly journals Health Related Quality of Life of Caregivers of Children and Adolescents With Phenylketonuria: A Systematic Review

2021 ◽  
Vol 8 ◽  
pp. 2333794X2110653
Author(s):  
Deepa Shaji Thomas ◽  
Divya K. Y. ◽  
Judie Arulappan
Keyword(s):  
Quality Of Life ◽  
Health Related Quality ◽  
Open Label ◽  
Cross Sectional ◽  
Related Quality ◽  
Health Related ◽  
Open Label Trial ◽  
Cross Sectional Studies ◽  
The Impact

Introduction. Caregivers of children with chronic illness are at risk of having impairment in their quality of life (QOL). We systematically reviewed the available literature related to the Health Related Quality Of Life (HRQOL) of caregivers of children with Phenylketonuria (PKU). Methods. We comprehensively searched in electronic databases including Scopus, Science Direct, CINAHL, Medline, PubMed, Google scholar, and ProQuest. The search criteria included studies with samples more than one, children suffering from PKU, exploring parents or primary caregiver’s HRQOL, published from 2010 to 2020, full article available for download and published in English. Eight studies including 5 cross sectional studies, 1 open label trial, and 2 surveys were systematically reviewed. Results. Seven out of 8 studies have established a negative correlation between PKU and parent’s HRQOL in at least 1 of the domains. In one study, the HRQOL of parents is higher than their population norms. Conclusion. Most of the caregivers had poor to moderate HRQOL. More studies are required to explore HRQOL of caregivers of children with PKU using similar tools and outcome measures addressing all the domains of HRQOL in order to have more clarity on the impact of PKU on caregiver’s HRQOL. Interventional studies might help in improving the HRQOL of caregivers.

scholarly journals ANALISA FAKTOR RISIKO PEKERJAAN YANG BERPENGARUH TERHADAP KEJADIAN KATARAK PADA MASYARAKAT DI SRAGEN

2017 ◽  
Vol 8 (2) ◽  
Author(s):  
Sri Suparti ◽  
Sri Purwanti
Keyword(s):  
Diabetes Mellitus ◽  
Risk Factor ◽  
Chronic Exposure ◽  
Ultraviolet Rays ◽  
Experience Design ◽  
Cross Sectional ◽  
The Subject ◽  
Cross Sectional Design ◽  
The Impact ◽  
Diabetes Melitus

Katarak merupakan kelainan  lensa mata yang keruh di dalam bola mata. Kekeruhan lensa atau katarak akan mengakibatkan sinar terhalang masuk ke dalam mata sehingga penglihatan menjadi menurun. Banyak faktor dikaitkan dengan katarak, yaitu usia sebagai faktor utama, dan faktor lain seperti penyakit diabetes melitus (DM), pajanan kronis terhadap sinar ultraviolet (sinar matahari), konsumsi alkohol, merokok, tingkat pendidikan, dan pekerjaan. Desain penelitian yang digunakan adalah desain cross sectional subyek penelitian diobservasi hanya satu kali saja dan faktor risiko serta dampak diukur menurut keadaan atau status pada saat observasi. Penelitian ini dilaksanakan untuk mengetahui risiko pekerjaan.Hasil: faktor pekerjaan yang terbukti sebagai faktor risiko terjadinya katarak adalah Satus gizi (p = 0.033; OR adjusted 2.568; 95% CI = 0.962-6851) Umur tua akan berisiko terjadi katarak dengan nilai (p = 0.05 OR adjusted; OR 0.441; 95% CI = 0.962-6851) Kebiasaan merokok (p = 0.001; OR adjusted 5.182 ;95% CI = 1846-14545) Kadar gula darah dalam  tubuh yang lebih dari dua ratus yeng mengalami DM berisiko terjadi katarak dengan nilai (p = 0.000 OR adjusted OR 0.588; 95% CI = 0.740-4.053) Pekerjaan (p = 0.040; OR adjusted OR 5.902 ;95% CI = 0.740-4.053)Simpulan: Umur yang lebih dari empat puluh tahun berisiko 0.441 kali untuk terjadi katarak. Kebiasaan merokok akan berisiko 5.182 kali terjadi katarak. Kadar gula darah yang tinggi lebih dari dua ratus berisiko 0.588 kali terjadi katarak.  Pekerjaan yang terpapar sinar UV secara langsung akan berisiko 5.902 kali terjadi katarak.Kata Kunci: Katarak, Pekerjaan, Faktor Risiko Cataract is an abnormality of eye's lens.Cloudly lens or cataract Will block the ray to the eye so the vision decreases.Many risk factors of cataract these are:Age(the main of risk factor),and other factors are diabetes mellitus(DM),chronic exposure to ultraviolet rays,alchohol,smoking,education,working. Experience design was used cross sectional design and the subject was observed once in experience,risk factor and also the impact measured according to the situations and statues of the observation.this experience did to know the risk factor in work. The result:Risk of work already proven risk to be cataract,statues of nutritions (p:0,033;OR adjusted 2,568;95%,CI:0,962-6851),old age would risk to be cataract with value(p:0,05,OR adjusted;0,441;95%,CI:0,962-6851), habitually of smoking (p:0,001;OR adjusted:5,182;95%CI:1846-14545).glucose in blood more than two hundred of DM risk to be cataract with value p:0,000,OR adjusted 0,588,95%CI:0,740-4,053,working (p:0,040;OR adjusted OR 5,902;95%,CI :0,740-4053).The conclusion:Age more fourty risk 0,441x to be cataract. Habitually of smoking riks 5,182x,glucose in blood more than two hundred risk 0,588x to be cataract,working with UV exposured risk 5,902x to be cataract.Keywords:cataract,working,risk factor.

scholarly journals The Impact of COVID-19 and the Pandemic on Tinnitus: A Systematic Review

2021 ◽  
Vol 10 (13) ◽  
pp. 2763
Author(s):  
Eldre Beukes ◽  
Alyssa Jade Ulep ◽  
Taylor Eubank ◽  
Vinaya Manchaiah
Keyword(s):  
Case Series ◽  
Inclusion Criteria ◽  
Cross Sectional ◽  
Design Studies ◽  
Impact Studies ◽  
Post Test ◽  
Disease Impact ◽  
Cross Sectional Studies ◽  
Meta Analyses ◽  
The Impact

This review aimed to systematically review what has been published regarding tinnitus during the coronavirus disease 2019 (COVID-19) pandemic up to March 2021 by performing both narrative and quantitative meta-analyses. Of the 181 records identified, 33 met the inclusion criteria, which generally had a fair risk of overall bias. In the included, 28 studies focused on the impact of the COVID-19 virus on tinnitus and 5 studies focused on the impact of the pandemic on tinnitus. From the studies identifying the impact of COVID-19 on tinnitus, there were 17 cross-sectional studies (n = 8913) and 11 case series or case report studies (n = 35). There were 2 cross-sectional studies (n = 3232) and 3 pre-post-test design studies (n = 326) focusing on the impact of the pandemic on tinnitus. No consistent patterns were found regarding the presentation of the tinnitus or additional factors that could have tinnitus developing in the disease impact studies. For the pandemic impact studies, the associated stress and anxiety of the pandemic were consistently suggested to contribute to tinnitus experiences. The pooled estimated prevalence of tinnitus post COVID-19 was 8% (CI: 5 to 13%). Medical professionals should be aware that tinnitus might be more problematic following the pandemic or after having COVID-19.

scholarly journals The impact of gastrointestinal nematodes on wild reindeer: experimental and cross-sectional studies

2002 ◽  
Vol 71 (6) ◽  
pp. 937-945 ◽  
Author(s):  
A. Stien ◽  
R. J. Irvine ◽  
E. Ropstad ◽  
O. Halvorsen ◽  
R. Langvatn ◽  
...  
Keyword(s):  
Gastrointestinal Nematodes ◽  
Cross Sectional ◽  
Cross Sectional Studies ◽  
The Impact ◽  
Wild Reindeer

scholarly journals The impact of the COVID-19 pandemic on self-harm and suicidal behaviour: update of living systematic review

F1000Research ◽  
2021 ◽  
Vol 9 ◽  
pp. 1097
Author(s):  
Ann John ◽  
Emily Eyles ◽  
Roger T. Webb ◽  
Chukwudi Okolie ◽  
Lena Schmidt ◽  
...  
Keyword(s):  
Systematic Review ◽  
Suicidal Behaviour ◽  
Suicide Risk ◽  
Research Evidence ◽  
Inclusion Criteria ◽  
Suicidal Thoughts ◽  
Cross Sectional ◽  
Self Harm ◽  
Cross Sectional Studies ◽  
The Impact

Background: The COVID-19 pandemic has caused considerable morbidity, mortality and disruption to people’s lives around the world. There are concerns that rates of suicide and suicidal behaviour may rise during and in its aftermath. Our living systematic review synthesises findings from emerging literature on incidence and prevalence of suicidal behaviour as well as suicide prevention efforts in relation to COVID-19, with this iteration synthesising relevant evidence up to 19th October 2020. Method:  Automated daily searches feed into a web-based database with screening and data extraction functionalities. Eligibility criteria include incidence/prevalence of suicidal behaviour, exposure-outcome relationships and effects of interventions in relation to the COVID-19 pandemic. Outcomes of interest are suicide, self-harm or attempted suicide and suicidal thoughts. No restrictions are placed on language or study type, except for single-person case reports. We exclude one-off cross-sectional studies without either pre-pandemic measures or comparisons of COVID-19 positive vs. unaffected individuals. Results: Searches identified 6,226 articles. Seventy-eight articles met our inclusion criteria. We identified a further 64 relevant cross-sectional studies that did not meet our revised inclusion criteria. Thirty-four articles were not peer-reviewed (e.g. research letters, pre-prints). All articles were based on observational studies. There was no consistent evidence of a rise in suicide but many studies noted adverse economic effects were evolving. There was evidence of a rise in community distress, fall in hospital presentation for suicidal behaviour and early evidence of an increased frequency of suicidal thoughts in those who had become infected with COVID-19. Conclusions:  Research evidence of the impact of COVID-19 on suicidal behaviour is accumulating rapidly. This living review provides a regular synthesis of the most up-to-date research evidence to guide public health and clinical policy to mitigate the impact of COVID-19 on suicide risk as the longer term impacts of the pandemic on suicide risk are researched.

Leader negative mood and employee-instigated incivility: the role of mood contagion

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Sevgi Emirza ◽  
Engin Bağış Öztürk
Keyword(s):  
Negative Mood ◽  
Causal Inferences ◽  
Cross Sectional ◽  
Content Type ◽  
Uncivil Behaviors ◽  
Mood Contagion ◽  
Cross Sectional Design ◽  
Indirect Relationship ◽  
The Impact

PurposeGiven the harmful effects of workplace incivility and the calls for revealing the antecedents of instigated incivility, this study examines how employee-instigated incivility unfolds as a result of negative mood contagion from leaders to employees.Design/methodology/approachDrawing upon affective events theory, the authors hypothesized that leader negative mood is contagious and has an indirect relationship with employee-instigated incivility through employee negative mood. For hypothesis testing, data were collected from 243 leader-employee dyads and tested using bootstrapped mediation analysis.FindingsAs hypothesized, leader negative mood was associated with employee-instigated incivility indirectly through employee negative mood. This finding supports that negative mood of the leader is contagious and might unintendedly trigger employee-instigated incivility toward other at work.Research limitations/implicationsGiven the cross-sectional design of this study, causal inferences could not be drawn. The direction of relationships between the variables is based on the theoretical assumptions, rather than a test of the causal ordering of the variables.Originality/valueThis study advances the limited literature on the antecedents of employee-instigated incivility by demonstrating the impact of negative mood experienced by leaders on uncivil behaviors of employees.

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