The ability to identify human movements can serve as an important tool in many different applications such as surveillance, military combat situations, search and rescue operations and patient ...monitoring in hospitals. This information can provide soldiers, security personnel and search and rescue workers with critical knowledge that can be used to potentially save lives and/or avoid dangerous situations. Most research involving human activity recognition employs the short-time Fourier transform (STFT) as a method of analysing human micro-Doppler signatures. However, the STFT has time–frequency resolution limitations and Fourier transform-based methods are not well-suited for use with non-stationary and non-linear signals. The authors approach uses the empirical mode decomposition to produce a unique feature vector from the human micro-Doppler signals following which a support vector machine is used to classify human motions. This study presents simulations of simple human motions, which are subsequently validated using experimental data obtained from both an S-band radar and a W-band millimetre wave (mm-wave) radar. Very good classification accuracies are obtained at distances of up to 90 m between the human and the radar.
Background Posttraumatic stress disorder (PTSD) has been linked to increased morbidity. An inflexibility of the autonomic nervous system might be the underlying mechanism. We aimed to assess whether ...PTSD and combat trauma exposure are associated with lower heart rate variability (HRV), a measure of autonomic function and a predictor of death. Methods We measured HRV by power spectral analysis on 24-hour ambulatory electrocardiogram in 459 middle-aged veteran male twins. Combat trauma was assessed with the combat exposure scale, and current and remitted PTSD was assessed with the Structured Clinical Interview for Psychiatry Disorders. Mixed-effects regression models were used to test associations of PTSD and HRV between and within twin pairs. Results Of all twins, 211 had combat exposure, 31 had current PTSD, and 43 had remitted PTSD. Current PTSD was inversely associated with very-low-frequency and low-frequency HRV both in individual twins and within 20 pairs discordant for current PTSD. Twins with current PTSD had a 49% lower low-frequency HRV than their brothers without PTSD ( p <.001). Remitted PTSD was not associated with HRV. Results were robust to adjustment for depression and other risk factors. Combat exposure was inversely associated with most HRV frequencies, but this association mostly diminished after adjustment for current PTSD. Conclusion In middle-aged veteran men, combat exposure and current PTSD are associated with measures of autonomic inflexibility previously shown to have prognostic significance. The negative health impact of combat exposure on autonomic function is mediated largely through PTSD and might reverse with remission of PTSD.
The selection of military defense equipment, especially fighter aircraft, has a bearing on the readiness ofthe Indian Air Force to defend the country’s independence. This study analyses a collection ...of alternative fighteraircraft that are linked to several choice factors using a multiple-criterion decision-making analysis technique. Tohandle such scenarios and make wise design judgements, a variety of criterion decision analysis techniques can beused. In this study, we assess fifth-generation fighter aircraft that incorporate significant 21st-century technologicaladvancements. These aircraft represent the state-of-the-art in fleet planning operations to 2022. These are generallyequipped with quick-moving airframes, highly integrated computer systems, superior avionics features, networkingwith other battlefield elements, situational awareness, command, control, and other communication capabilities.The study proposes a strategy for the selection of the fifth-generation combat aircraft for the National Air Force.Because of the problems, the Army needed an application that could assist with decision-making for combat selection systems. Solving the decision problem for evaluating fifteen military fighter alternatives in terms of nine decision criteria is the main objective of this work. We use the Shannon entropy and VIKOR model for the Air Force’s fleet program to evaluate military fighter aircraft suitability. The entropy technique is used to compute the weight of the criteria, and then the VIKOR technique has been used to rank the fighter aircraft.
Killing a person is in general among the most seriously wrongful forms of action, yet most of us accept that it can be permissible to kill people on a large scale in war. Does morality become more ...permissive in a state of war? This book argues that conditions in war make no difference to what morality permits and that the justifications for killing people are the same in war as they are in other contexts, such as individual self-defence. This view is radically at odds with the traditional theory of the just war and has implications that challenge common sense views. It implies, for example, that it is wrong to fight in a war that is unjust because it lacks a just cause, that those who fight in a just war are not legitimate targets of attack, and that some civilians may, in principle if not in practice, be morally liable to suffer certain harms in war.
To identify the pattern, distribution, and causes of ocular injuries among the security personnel participating in counterinsurgency operations (CIOps).
This was a multicentric, retrospective review ...of chart records of patients reporting to three hospitals located in the geographic region affected by CIOps. The hospital registry was examined for all patients diagnosed with any type of ocular trauma between January 1, 2016, and December 31, 2019. A standardized proforma was filled out using the case records, and entries were validated.
A total of 131 ocular injuries fulfilled the criteria of the study. The mean age of the patients was 32.46 ± 10.2 years. All the patients were males. The causes of the injuries were explosive blasts in 60 eyes (45.80%), gunshot wounds in 15 eyes (11.42%), stone pelting in 16 eyes (12.21%), training-related causes in 26 eyes (29.84%), vehicular accidents in 13 eyes (9.92%), and battery blast in one eye (0.76%). Among the type of injuries, open globe injuries included 66 eyes (50.38%), closed globe injuries included 35 eyes (26.72%), isolated lid lacerations included 14 eyes (10.68%), and isolated chemical injury was seen in two eyes (1.52%). Optic nerve head avulsion was seen in two eyes (1.52%).
The study revealed a considerable number of ocular injuries related to combat, with explosive bursts being the leading cause. The incidence of ocular injuries was found to be highest in zone 1. This study emphasizes the importance of the need for soldiers deployed in active CIOps regions to wear protective eyewear, such as ballistic goggles or military combat eye protection, to reduce the risk of ocular injuries.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
We exploit plausibly exogenous variation in overseas deployment assignment to estimate the effect of combat exposure on psychological well-being. Controlling for pre-deployment mental health, we find ...that active-duty soldiers deployed to combat zones are more likely to suffer from post-traumatic stress disorder (PTSD) than their counterparts deployed outside the United States in non-combat zones. Among those deployed to combat zones, those deployed to locales where they engage in enemy firefight or witness allied or civilian deaths are at an increased risk for suicidal ideation and PTSD relative to their active-duty counterparts deployed to combat zones without enemy firefight.
The aim of this paper was to analyse several measurements of soldiers to provide a reference for trousers sizes
of military combat clothing. For sizing and fitting of military clothing, information ...on the body measurements
of the user population is a precondition. More than 400 soldiers in the Estonian and Latvian Defence Forces as
well as the military personnel were measured using Human Solution 3-D scanner. It focused on collating basic
human body measurement data for the revision of size charts by STANAG 2335. Fit and comfort of trousers
mainly relate to the following measurements: waist girth, leg inseam, leg length, and waistband. Present
parameters play a significant role in the quality of trousers to ensure the wearer’s mobility in all situations
particularly concerning the activities of soldiers. Correlating measurements and existing sizing systems are
made to offer recommendations for manufacturers. In addition, this paper helps to provide sizing and fitting
criteria of military combat clothing to STANREC document compiled by NATO RTO HFM-266 Group.
Is esprit de corps the secret engine of history?
Unveils the hidden and conflicting ideologies at stake behind the concept of esprit de corps and its contemporary uses
Focuses on the discursive uses ...of esprit de corps in various transnational contexts and in the long term, from 1700 to present times
Combines intellectual history, cultural history, philosophy, history of ideas, discourse analysis, political theory and labour history
Offers a fresh look into the modern dialectics of individualism and collectivism, structure and agency, laissez-faire and corporatism
Deepens our understanding of the history of corporate capitalism and its military influences, as well as to understand the current revival of occidental nationalism
Esprit de corps has played a significant role in the cultural and political history of the last 300 years. Through several historical case studies, Luis de Miranda shows how this phrase acts as a combat concept with a clear societal impact. He also reveals how interconnected, yet distinct, French, English and American modern intellectual and political thought is. In the end, this is a cautionary analysis of past and current ideologies of ultra-unified human ensembles, a recurrent historical and theoretical fabulation the author calls ‘ensemblance’.
Improvised explosive devices (IEDs) used in the battlefield cause damage to vehicles and their occupants. The injury burden to the casualties is significant. The biofidelity and practicality of ...current methods for assessing current protection to reduce the injury severity is limited. In this study, a finite-element (FE) model of the leg was developed and validated in relevant blast-loading conditions, and then used to quantify the level of protection offered by a combat boot. An FE model of the leg of a 35 years old male cadaver was developed. The cadaveric leg was tested physically in a seated posture using a traumatic injury simulator and the results used to calibrate the FE model. The calibrated model predicted hindfoot forces that were in good correlation (using the CORrelation and Analysis or CORA tool) with data from force sensors; the average correlation and analysis rating (according to ISO18571) was 0.842. The boundary conditions of the FE model were then changed to replicate pendulum tests conducted in previous studies which impacted the leg at velocities between 4 and 6.7 m/s. The FE model results of foot compression and peak force at the proximal tibia were within the experimental corridors reported in the studies. A combat boot was then incorporated into the validated computational model. Simulations were run across a range of blast-related loading conditions. The predicted proximal tibia forces and associated risk of injury indicated that the combat boot reduced the injury severity for low severity loading cases with higher times to peak velocity. The reduction in injury risk varied between 6 and 37% for calcaneal minor injuries, and 1 and 54% for calcaneal major injuries. No injury-risk reduction was found for high severity loading cases. The validated FE model of the leg developed here was able to quantify the protection offered by a combat boot to vehicle occupants across a range of blast-related loading conditions. It can now be used as a design and as an assessment tool to quantify the level of blast protection offered by other mitigation technologies.
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