538 research outputs found
Senator Henry M. Jackson discussing the UH1B helicopter with Major Ivan L. Slavich at Tan Son Nhut air base in Saigon, Vietnam, December 7, 1962
No full textNote adhered to verso: Senator Henry M. Jackson, from Washington, is receiving a briefing on the UH1B helicopter from Major Ivan L. Slavich UTT (Utility Tactical Transport) Helicopter Co. Tan Son Nhut, Vietnam
Some hyperbolic 4-manifolds with low volume and number of cusps
No full textWe construct here two new examples of non-orientable, non-compact, hyperbolic 4-manifolds. The first has minimal volume v m = 4π 2 /3 and two cusps. This example has the lowest number of cusps among known minimal volume hyperbolic
4-manifolds. The second has volume 2 ·v m and one cusp. It has lowest volume among known one-cusped hyperbolic 4-manifolds
Compact hyperbolic manifolds without spin structures
No full textWe exhibit the first examples of compact, orientable, hyperbolic manifolds that do not have any spin structure. We show that such manifolds exist in all dimensions
n≥4. The core of the argument is the construction of a compact, oriented, hyperbolic 4–manifold M that contains a surface S of genus 3 with self-intersection 1. The 4–manifold M
has an odd intersection form and is hence not spin. It is built by carefully assembling some right-angled 120–cells along a pattern inspired by the minimum trisection of CP2
.The manifold M is also the first example of a compact, orientable, hyperbolic 4–manifold satisfying either of these conditions:
1) H2(M,Z) is not generated by geodesically immersed surfaces.
2)There is a covering M that is a nontrivial bundle over a compact surface
sj-docx-1-evp-10.1177_14747049211056160 - Supplemental material for Cues of Social Status: Associations Between Attractiveness, Dominance, and Status
No full textSupplemental material, sj-docx-1-evp-10.1177_14747049211056160 for Cues of Social Status: Associations Between Attractiveness, Dominance, and Status by Danny Rahal, Melissa R. Fales, Martie G. Haselton, George M. Slavich and Theodore F. Robles in Evolutionary Psychology</p
On the neutral Higgs boson masses in the MSSM for arbitrary stop mixing
No full textWe compute the O(alpha (l)alpha (s)) two-loop corrections to the neutral Higgs boson masses in the Minimal Supersymmetric extension of the Standard Model. An appropriate use of the effective potential allows us to obtain simple analytical formulae, valid for arbitrary values of m(A) and of the mass parameters in the stop sector. We elucidate some subtleties of the effective potential calculation, and find full agreement with the numerical output of the existing diagrammatic calculation. We discuss in detail the limit of heavy gluino. (C) 2001 Elsevier Science B.V. All rights reserved
Mental health during the COVID-19 pandemic and beyond : the importance of the vagus nerve for biopsychosocial resilience
No full textThe COVID-19 pandemic has led to widespread increases in mental health problems, including anxiety and depression. The development of these and other psychiatric disorders may be related to changes in immune, endocrine, autonomic, cognitive, and affective processes induced by a SARS-CoV-2 infection. Interestingly, many of these same changes can be triggered by psychosocial stressors such as social isolation and rejection, which have become increasingly common due to public policies aimed at reducing the spread of SARS-CoV-2. The present review aims to shed light on these issues by describing how viral infections and stress affect mental health. First, we describe the multi-level mechanisms linking viral infection and life stress exposure with risk for psychopathology. Then, we summarize how resilience can be enhanced by targeting vagus nerve function by, for example, applying transcutaneous vagus nerve stimulation and targeting lifestyle factors, such as exercise. With these biopsychosocial insights in mind, researchers and healthcare professionals will be better equipped to reduce risk for psychopathology and increase resilience during this challenging pandemic period and beyond
Pharmacotherapy for the treatment of obstructive hypertrophic cardiomyopathy
No full textIntroduction: Hypertrophic cardiomyopathy (HCM) is one of the most common genetic heart diseases and represents a leading cause of sudden cardiac death as well as a prevalent cause of heart failure and stroke. HCM is characterized by a very complex pathophysiology, consisting of heterogeneous clinical manifestations and natural history. Left ventricular outflow tract (LVOT) obstruction has been considered the most knowable feature of HCM since the initial clinical descriptions of the disease. Areas covered: In this review, the authors discuss the most recent reports on the pharmacological treatment of obstructive HCM, mainly based on three different levels of intervention: control of symptoms, cardiac metabolism modulation and disease-modifying approaches, including genetic preventive therapies. Expert opinion: There are presently limited data supporting pharmacological interventions for this complex disease. However, an improved understanding of HCM pathophysiology will allow the development of novel treatment options. Two important key messages are to further study drugs with negative but limited previous results and to design new and larger trials for those molecules that have already produced positive results in HCM, especially for pressure gradients and symptoms control
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