Measurement of Seam Impedances of Tactical Shelters for Threat Level NEMP Simulation

Author(s):  
Peter B. Papazian ◽  
Rodney A. Perala ◽  
Calvin C. Easterbrook ◽  
Paul M. McKenna
Keyword(s):  
2020 ◽  
Author(s):  
dean mobbs ◽  
Ellen Tedeschi ◽  
Anastasia Buyalskaya ◽  
Brian Silston

According to Hamilton’s Selfish Herd Theory, a crucial survival benefit of group living is that it provides a ‘risk dilution’ function against predation. Despite a large literature on group living benefits in animals, few studies have been conducted on how group size alters subjective fear or threat perception in humans, and on what factors drive preferences for being in groups when facing threats. We conducted seven experiments (N=3,838) to test (A) if the presence of others decreases perception of threat under a variety of conditions. In studies 1 to 3, we experimentally manipulated group size in hypothetical and real-world situations, to show that fear responses decreased as group size increased. In studies 4 to 7 we again used a combination of hypothetical, virtual and real-world decisions to test (B) how internal states (e.g. anxiety) and external factors (e.g. threat level, availability of help) affected participants’ preference for groups. Participants consistently chose larger groups when threat and anxiety were high. Overall, our findings show that group size provides a salient signal of protection and safety.


2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S150-S150
Author(s):  
Michael R Hovan ◽  
Vanessa Cedarbaum ◽  
Thomas Kirn ◽  
Thomas Kirn

Abstract Background Carbapenem-Resistant Enterobacteriales (CRE) bacteremia is associated with significant morbidity and mortality. CRE were assigned a threat level of “urgent” in the 2019 CDC report on antibiotic resistance in the United States. We attempted to identify predictors of 30-day mortality in patients with CRE bacteremia. Methods We performed a chart review of 146 patients with CRE bacteremia from January 2010 - July 2019. CRE was defined using the current CDC definition. Electronic medical records were reviewed to obtain clinical characteristics and outcomes including prior antibiotic use, comorbidities, prior location, treatment, hospital course, microbiological data and outcomes including in-hospital mortality. Results Of 146 patients included for analysis, the overall 30-day mortality rate was 36.3%. Patients admitted from a healthcare facility including outside hospitals, rehab, nursing homes, and LTACs had a 49.1% (29/59) 30-day mortality rate compared to 27.5% (24/87) for those admitted from home (RR=1.78, 95% CI 1.16–2.73, p=.0082). Patients with a Pitt bacteremia score ≥ 4 had a greater 30-day mortality rate (42.6%, 26/61) compared to those with a Pitt bacteremia score < 4 (17.6%, 15/85) (RR=2.92, 95% CI 1.40–4.16, p=.0015). Patients that received inactive empiric therapy had a 30-day mortality rate of 36% (36/100) compared to 36.9% (17/46) in those that received active empiric therapy (RR=.9741, 95% CI .6155-1.59, p=.9109). Patients with isolates determined to have a meropenem MIC ≥ 4 had a 30-day mortality rate of 40.2% (37/92) while those with an MIC < 4 had a 30-day mortality rate of 30.2% (16/53) (RR=1.33, 95% CI .8250–2.1513, p=.2408). A pulmonary source of bacteremia was associated with an increased risk of 30-day mortality (64.3%, 9/14) compared to all other sources of bacteremia (34.8%, 31/89) (RR=1.85, 95% CI 1.39–2.99, p=.0129). No other infection source was associated with an increased 30-day mortality rate. Conclusion Admission from a healthcare facility, Pitt bacteremia score ≥ 4, and pulmonary source of bacteremia were associated with increased risk of 30-day mortality. Interestingly, administration of active empiric therapy was not associated with a decreased mortality risk. Meropenem MIC was not predictive of 30-day mortality. Disclosures All Authors: No reported disclosures


1979 ◽  
Vol 26 (6) ◽  
pp. 4959-4963
Author(s):  
P. R. Trybus ◽  
A. M. Chodorow ◽  
D. L. Endsley ◽  
J. E. Bridge
Keyword(s):  

Author(s):  
Karen A. Delos Santos ◽  
Shawn C. Stafford ◽  
James L. Szalma ◽  
Tal Oron-Gilad ◽  
P.A. Hancock

Police officers' threat perception of static images was examined using images reflecting the range of five threat categories on which police officers are trained. Thirteen experienced officers from a police departments in the southeastern United States participated in this study. Officers rated their perceived threat level for 110 images that were presented to them on a laptop computer. Each of these images was rated twice by each officer. Officers used all five categories to rate the stimuli, and their responses to the extremes (images rated as 1 or 5) were faster than responses to more ambiguous stimuli in the other categories. These results were generally consistent with predictions based on Fuzzy Signal Detection Theory. Further studies will evaluate performance with these images in the context of a signal detection task. Once fully developed, this tool could be used to evaluate new recruits' decision-making process before given the green light to carry a badge. These assessments could also be used as a modified training tool for experienced officers if the stimuli were to be placed in a semiimmersive environment.


2022 ◽  
pp. 002190962110696
Author(s):  
Shabir Hussain ◽  
Farrukh Shahzad ◽  
Shirin Ahmad

In this study, we present a contextual model for analyzing the escalatory and de-escalatory trends in media reporting of seven conflicts in Pakistan. For this purpose, we combined findings from both survey and content analysis. While the survey helped to examine the journalists’ perceptions about the security threats of conflicts and the factors that influence the reportage, the content analysis was utilized to analyze the escalatory and de-escalatory characteristics in the coverage. The findings show that high security conflicts lead to a patriotic reporting scenario that results in high escalatory coverage. There is a significant decrease in the escalatory coverage as the assumed threat level of a conflict decreases. Similarly, we found that a conflict in which journalists exercised more relative freedom from pressure groups was reported in de-escalatory fashion. These findings can be useful for strategizing for the implementation of peace journalism in Pakistan in particular and elsewhere in general.


2021 ◽  
Author(s):  
Xiao Wang ◽  
Enmi Yong ◽  
Kaifeng He ◽  
Tao Liu ◽  
Chenzhou Xu ◽  
...  

Author(s):  
I Wayan Gede Eka Saputra ◽  
I.P.G. Ardhana ◽  
I Wayan Sandi Adnyana

Sukasada Sub-District is a region that is largely a hilly area with steep slopes, rainfall intensity is high enough and unstable ground conditions. This leads that the Sub-District of Sukasada becomes potential for the occurrence of landslides. Mitigation effort is therefore necessary to reduce the risk of landslides that may occur. The purpose of this study was to determine the level of threats, vulnerabilities and capacities of level landslides in Sub-District of Sukasada. In addition to the above objectives, the study also aims to formulate strategies for disaster risk reduction of landslides in the Sub-District of Sukasada. The results showed the threat of landslides in the Sub-District of Sukasada is covering 11.169 hectares or 69,51% of the total area. High threat level area is around 727 hectares, the threat level is covering 7.717 hectares and a low threat level area is around 2.725 hectares. The level of vulnerability of landslides in Sub- District of Sukasada ranges from moderate to high. The highest vulnerability level (0.83) is located in some villages, such as: Pancasari, Pegayaman, Panji and Panji Anom Village. While the lowest level of vulnerability (0.66) is in Padangbulia Village. The level of local capacity to landslides in the Sub-District of Sukasada is low, with the resistance area index of 40,25 or capacity level of 0,2349. The level of risk of landslides in the Sub-District of Sukasada is classified as moderate to high. Areas with moderate risk levels are covering 2.032 hectares and a high level of risk covering 7.171 hectares. Strategies that can be done to cope with disaster risk are to reduce the threat, reduce vulnerability and increase capacity. Areas with moderate risk level can be done non-structural mitigation. Structural mitigation can be done in areas with a high level of risk.


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