2,734 research outputs found
The Partner Proliferation Problem in Disaster Response Networks
The extraordinary conditions of a major disaster require mobilization of all available resources. This necessity, together with the stretch in the response budget in the public sector and the difficulty of raising funds in the private sector, draws various humanitarian actors with widely diverse capabilities into the affected area. This phenomenon is called the proliferation of actors, or the partner proliferation problem. This problem can have serious counterproductive effects on disaster operations, such as unmanaged independent efforts that lead to a duplication and confusion of effort. The disaster response phase generally lacks the contributions of a long-term outlook and pre-planning, which are adopted in existing long-term structures such as supply chains. The aim of this paper is to provide a structured review of the partner proliferation problem in the response phase and to suggest alternative courses of action for restructuring the disaster response network. Drawing on the concept of Virtual Organizations, the paper concludes that short-term collaboration is a suitable structure for the response phase. Short-term collaboration in the response phase is complementary to long-term collaborations such as supply chains in the recovery, mitigation, and preparedness phases of the disaster cycle. To that end, a conceptual framework is provided for re-structuring the disaster response network to align with the other phases of disaster management. Finally, further research is suggested to develop a decision making tool for partner configuration to meet the specific requirements of a disaster response network
Cultural Variations and the Morphology of Innovation
The relationship between culture and innovation has intrigued researchers for generations. After much research and experimentation, what we know about the relationship is that innovation both shapes and is shaped by culture, and that both culture and innovation can be conceptualized as operating at multiple levels - national, regional, and organizational. We also know that in the management literature, culture has most commonly been conceptualized as an organizational variable - a constellation of norms and values, unique in some respects to every organization, that can, through its influence on behavior of organizational members, either encourage and facilitate innovation or be an obstacle to it
Late stage kinetics for various wicking and spreading problems
The kinetics of spreading of a liquid drop in a wedge or V-shaped groove, in
a network of such grooves, and on a hydrophilic strip, is re-examined. The
length of a droplet of volume Omega spreading in a wedge after a time t is
predicted to scale as Omega^(1/5) * t^(2/5), and the height profile is
predicted to be a parabola in the distance along the wedge. If the droplet is
spreading radially in a sparse network of V-shaped grooves on a surface, the
radius is predicted to scale as Omega^(1/6) * t^(1/3), provided the liquid is
completely contained within the grooves. A number of other results are also
obtained.Comment: 5 pages, 2 figures, RevTeX
Stable isotope study of water-rock interaction and ore formation, Bayhorse base and precious metal district, Idaho
Prejudice, terrorism, and behavior therapy
Behavior therapy is relevant not just to the needs of victims of terrorism, but also to the understanding and modification of psychological processes that lead to the perpetration of terrorist acts. A key process of this kind is prejudice. In this paper, human prejudice is defined as the objectification and dehumanization of people as a result of their participation in evaluative verbal categories. Prejudice is difficult to deal with because: 1) The same verbal processes that give rise to prejudice are massively reinforced in dealing with the external environment; 2) Virtually all cultures openly amplify this process with stigmatized groups; 3) Humans are historical beings and verbal/cognitive networks once formed tend to maintain themselves; and 4) Many of the things humans do to change or eliminate undesirable verbal categorical processes are either inert or prone to making these processes more resistant to change. Mindfulness, cognitive defusion, acceptance, and valued action are suggested as alternative methods of fighting the war behavior therapy needs to help human society win: not just a war on terrorism, but a war on prejudice
Late Quaternary sea-level changes of the Persian Gulf
Late Quaternary reflooding of the Persian Gulf climaxed with the mid-Holocene highstand previously variously dated between 6 and 3.4 ka. Examination of the stratigraphic and paleoenvironmental context of a mid- Holocenewhale beaching allows us to accurately constrain the timing of the transgressive, highstand and regressive phases of the mid- to late Holocene sea-level highstand in the Persian Gulf. Mid-Holocene transgression of the Gulf surpassed today's sea level by 7100–6890 cal yr BP, attaining a highstand of N1 m above current sea level shortly after 5290–4570 cal yr BP before falling back to current levels by 1440–1170 cal yr BP. The cetacean beached into an intertidal hardground pond during the transgressive phase (5300–4960 cal yr BP) with continued transgression interring the skeleton in shallow-subtidal sediments. Subsequent relative sea-level fall produced a forced regression with consequent progradation of the coastal system. These new ages refine previously reported timings for the mid- to late Holocene sea-level highstand published for other regions. By so doing, they allow us to constrain the timing of this correlatable global eustatic event more accurately
Attribution analysis of high precipitation events in summer in England and Wales over the last decade
Microbial sulfate reduction and metal attenuation in pH 4 acid mine water
Sediments recovered from the flooded mine workings of the Penn Mine, a Cu-Zn mine abandoned since the early 1960s, were cultured for anaerobic bacteria over a range of pH (4.0 to 7.5). The molecular biology of sediments and cultures was studied to determine whether sulfate-reducing bacteria (SRB) were active in moderately acidic conditions present in the underground mine workings. Here we document multiple, independent analyses and show evidence that sulfate reduction and associated metal attenuation are occurring in the pH-4 mine environment. Waterchemistry analyses of the mine water reveal: (1) preferential complexation and precipitation by H2S of Cu and Cd, relative to Zn; (2) stable isotope ratios of 34S/32S and 18O/16O in dissolved SO4 that are 2–3 ‰ heavier in the mine water, relative to those in surface waters; (3) reduction/oxidation conditions and dissolved gas concentrations consistent with conditions to support anaerobic processes such as sulfate reduction. Scanning electron microscope (SEM) analyses of sediment show 1.5-micrometer, spherical ZnS precipitates. Phospholipid fatty acid (PLFA) and denaturing gradient gel electrophoresis (DGGE) analyses of Penn Mine sediment show a high biomass level with a moderately diverse community structure composed primarily of iron- and sulfate-reducing bacteria. Cultures of sediment from the mine produced dissolved sulfide at pH values near 7 and near 4, forming precipitates of either iron sulfide or elemental sulfur. DGGE coupled with sequence and phylogenetic analysis of 16S rDNA gene segments showed populations of Desulfosporosinus and Desulfitobacterium in Penn Mine sediment and laboratory cultures
Focusing on Gratitude: Implications for Mental Health
This chapter examines positive psychology theories and research findings on how gratitude contributes to happiness and well-being. Two theories are discussed that provide insight into why gratitude enhances well-being (i.e., Broaden-and-Build Theory; Find, Remind, and Bind Theory). Empirical findings are reviewed showing that gratitude relates to lower levels of psychological distress, higher levels of psychological well-being, and better physical health. Benefits of writing-based gratitude interventions such as maintaining gratitude journals and writing gratitude letters are described. Studies showing promising benefits of gratitude across several situations are also addressed (i.e., the workplace, romantic relationships, and aging). Finally, suggestions for enhancing gratitude in one’s life are provided along with recommendations for future research
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