749 research outputs found
The Wounded Healer: Finding Meaning in Suffering
In modern history, no event has more profoundly symbolized suffering than the Holocaust. This novel “Husserlian-realist” phenomenological dissertation elucidates the meaning of existential trauma through an interdisciplinary and psychologically integrative vantage point. I use the testimony of a select group of Holocaust witnesses who committed suicide decades after that event as a lens to examine what their despair may reveal about an unprecedented existential, moral, and spiritual crisis of humanity that threatens to undermine our faith in human history and reality itself. By distinguishing what they actually saw about our condition from what they merely believed about reality, I show there is a reliable hope that can fulfill the highest reaches of human nature in the worst conditions. This I call a Psychotherapy of Hope. To this end, I provide a broad overview of the four main forces of psychotherapy to evaluate the role each plays in healing this crisis. I then provide an elucidation of empathic understanding within an “I/Thou” altruistic relationship having power to transform human personality. The primary barrier to personal transformation is shown to be no mere value-neutral indifference, but “cold” indifference or opposition to an objective good. No one can avoid a faith commitment, and the only solution to this crisis is our love or reliance on a self-transcendent good or benevolent super-ego worthy of our trust. By means of this love we can find meaning in our suffering to become more than we are, better than we are, and even transform human life as we know it. By love we may heal our wounds
Beyond Technology: Social Predictors of Energy Efficiency in Industrial Facilities
Energy is the lifeblood of the industrialized world with electrical energy expected by the National Renewable Energy Laboratory (NREL) to increase 25% between 2016 to 2050 in the United States. Combined with the ever-present climate crisis, energy-efficient buildings are becoming increasingly important to conserve resources and alleviate strain on aging energy systems. The Industrial Assessment Center (IAC) program through the US Department of Energy aims to reduce the consumption of large, single-site energy users, industrial and commercial buildings, through comprehensive energy audits. Such investigations find that energy-efficient structures are a technological challenge as much as social. The mentality of building occupants towards energy use strongly impacts the efficiency of the building with the energy conscientiousness of the inhabitants being a key factor in maximizing theoretical performance. Not in My Backyard (NIMBY) is a social phenomenon where communities rise in opposition to controversial facilities that serve to upset community wellbeing. These are generally energy-intensive projects that may detract from the natural beauty or environmental health of an area. The negative reaction originates from difficult-to- measure factors such as personal attitudes and trust between involved parties but can be loosely predicted by specific demographic quantities. This investigation aimed to primarily analyze the quantity, scale, and quality of community energy systems at the county level of Ohio in conjunction with collected IAC data and NIMBY demographics to identify potential external predictors for industrial energy intensity based on NIMBY sensitivity. Ultimately, only a weak correlation is found between industrial facility energy usage and the listed attributes, but the investigation paints a vivid demography of people, energy resources, and industrial agglomeration while emphasizing and supporting the need for continual research into the social functions that drive technical success
Platelet-Activating Factor-Induced Reduction in Contact Hypersensitivity Responses Is Mediated by Mast Cells via Cyclooxygenase-2-Dependent Mechanisms
Platelet-activating factor (PAF) stimulates numerous cell types via activation of the G protein-coupled PAF receptor (PAFR). PAFR activation not only induces acute proinflammatory responses, but it also induces delayed systemic immunosuppressive effects by modulating host immunity. Although enzymatic synthesis and degradation of PAF are tightly regulated, oxidative stressors, such as UVB, chemotherapy, and cigarette smoke, can generate PAF and PAF-like molecules in an unregulated fashion via the oxidation of membrane phospholipids. Recent studies have demonstrated the relevance of the mast cell (MC) PAFR in PAFR-induced systemic immunosuppression. The current study was designed to determine the exact mechanisms and mediators involved in MC PAFR-mediated systemic immunosuppression. By using a contact hypersensitivity model, the MC PAFR was not only found to be necessary, but also sufficient to mediate the immunosuppressive effects of systemic PAF. Furthermore, activation of the MC PAFR induces MC-derived histamine and PGE2 release. Importantly, PAFR-mediated systemic immunosuppression was defective in mice that lacked MCs, or in MC-deficient mice transplanted with histidine decarboxylase- or cyclooxygenase-2-deficient MCs. Lastly, it was found that PGs could modulate MC migration to draining lymph nodes. These results support the hypothesis that MC PAFR activation promotes the immunosuppressive effects of PAF in part through histamine- and PGE2-dependent mechanisms
Electrodynamic tether at Jupiter 2. Tour missions after capture
Three separate scenarios of an electrodynamic tether mission at Jupiter following capture of a spacecraft (SC) into an equatorial, highly elliptical orbit around the planet, with perijove at about 1.5 times the Jovian radius,
are discussed. Repeated application of Lorentz drag on the spinning tether, at the perijove vicinity, can progressively lower the apojove. One mission involves the tethered-SC rapidly and frequently visiting Galilean moons;
elliptical orbits with apojove down at the Ganymede, Europa, and Io orbits are in 2:5, 4:9, and 1:2 resonances with the respective moons. About 20 slow flybys of Io would take place before the accumulated radiation dose exceeds 3 Mrad (Si) at 10 mm Al shield thickness, with a total duration of 5 months after capture (4 months for lowering the apojove to Io and one month for the flybys). The respective number of flybys for Ganymede would be 10 with a total duration of about 9 months. An alternative mission would have the SC acquire a low circular orbit around Jupiter, below the radiation belts, and manoeuvre to get an optimal altitude, with no major radiation effects, in less than 5 months after capture. In a third mission, repeated thrusting at the apojove vicinity, once down at the Io
torus, would raise the perijove itself to the torus to acquire a low circular orbit around Io in about 4 months, for a total of 8 months after capture; this corresponds, however, to over 100 apojove passes with an accumulated
dose, of about 8.5 Mrad (Si), that poses a critical issue
Electrodynamic tether at Jupiter II:Fast moon tour after capture
An electrodynamic bare-tether mission to Jupiter,following the capture of a spacecraft (SC) into an equatorial
highly elliptical orbit with perijove at about 1.3 times the Jovian radius, is discussed. Repeated applications of the propellantless Lorentz drag on a spinning tether, at the perijove vicinity, can progressively lower the apojove at constant perijove, for a tour of Galilean moons. Electrical energy is generated and stored as the SC moves from an orbit at 1 : 1 resonance with a moon, down
to resonance with the next moon; switching tether current off, stored power is then used as the SC makes a number of flybys of each moon. Radiation dose is calculated throughout the mission,during capture, flybys and moves between moons. The tour mission is limited by both power needs and accumulated dose. The three-stage apojove lowering down to Ganymede, Io, and Europa resonances would total less than 14 weeks, while 4 Ganymede, 20 Europa, and 16 Io flybys would add up to 18 weeks, with the entire mission taking just over seven months and the accumulated
radiation dose keeping under 3 Mrad (Si) at 10-mm Al shield
thickness
Electrodynamic Tether at Jupiter I: Capture operation and constraints
Tethered spacecraft missions to the Jovian system suit the use of electrodynamic tethers because: 1) magnetic stresses are 100 times greater than at the Earth; 2) the stationary orbit is one-third the relative distance for Earth; and 3) moon Io is a nearby giant plasma source. The (bare) tether is a reinforced aluminum foil with tens of kilometer length L and a fraction of millimeter thickness h, which collects electrons as an efficient Langmuir probe and can tap Jupiter’s rotational energy for both propulsion and power. In this paper, the critical capture operation is explicitly formulated in terms of orbit geometry and established
magnetic and thermal plasma models. The design parameters
L and h and capture perijove radius rp face opposite criteria independent of tape width. Efficient capture requires a low rp and a high L 3/2/h ratio. However, combined bounds on tether bowing and tether tensile stress, arising from a spin made necessary by the low Jovian gravity gradient, require a high rp and a low L 5/2/h
ratio. Bounds on tether temperature again require a high rp and a low L 3/8/(tether emissivity)1/4 ratio. Optimal design values are discussed
A proposed two-stage two-tether scientific mission at Jupiter
A two-stage mission to place a spacecraft (SC) below
the Jovian radiation belts, using a spinning bare tether with plasma contactors at both ends to provide propulsion and power,is proposed. Capture by Lorentz drag on the tether, at the periapsis of a barely hyperbolic equatorial orbit, is followed by a sequence of orbits at near-constant periapsis, drag finally bringing the SC down to a circular orbit below the halo ring. Although increasing both tether heating and bowing, retrograde motion can substantially reduce accumulated dose as compared with prograde
motion, at equal tether-to-SC mass ratio. In the second stage,the tether is cut to a segment one order of magnitude smaller, with a single plasma contactor, making the SC to slowly spiral inward over severalmonths while generating large onboard power, which would allow multiple scientific applications, including in situ study of Jovian grains, auroral sounding of upper atmosphere, and space- and time-resolved observations of surface and subsurface
Unilateral Headache Status after Intra-Aortic Balloon Pump Placement
Introduction. Intra-aortic balloon pump (IABP) counterpulsation is a catheter-based treatment for coronary artery disease and decompensated heart failure to increase coronary blood flow and improve cardiac output. IABP is generally well tolerated, and complications are usually related to peripheral vasculature or red blood cell and platelet consumption. The usual insertion site via femoral artery renders the patient bedbound. Recently, axillary artery has been used in patients with atherosclerotic peripheral vascular disease and documented small arteries or in those awaiting transplant to ensure ambulation and prevent deconditioning. Case Report. We present a patient with ischemic cardiomyopathy and severe left ventricular dysfunction, awaiting Orthotropic Heart Transplant. His worsening intractable angina and dyspnea necessitated IABP placement via left axillary artery, significantly improving his condition. He subsequently experienced migraine-type persistent unilateral headache refractory to standard pain management. Multiple strategies were utilized to treat his pain, but the patient insisted that his pain commenced after IABP placement. Ultimately, the removal of the pump led to complete resolution with no recurrence. Conclusion. The authors hypothesize that the unilaterally directed blood flow and direct increase in cerebral perfusion from the intra-aortic balloon pump may have caused vasodilation of the extracranial arteries, leading to a persistent and debilitating headache in this susceptible patient
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