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BSF-colony management efficiency at a large scale fly larvae composting company in Kenya – A field study / Utvärdering av flugkolonieffektiviteten på ett storskaligt fluglarvskomposteringsföretag i Kenya – En fältstudieAnderberg, Hilda January 2023 (has links)
The majority of organic waste globally is either dumped or placed on landfills, which can result in spreading of disease and pests, methane gas emissions, the deterioration of landscapes and odour pollution. One of the solutions to poor organic waste management is to create value from waste. A way to do this is with black soldier fly (Hermetia illucens) larvae (BSFL) composting. The interest for BSFL composting has increased the past 10 years mainly because it is a technology with relatively low investment costs. The part of the process where the seed larvae that are used in the treatment are produced is called BSF-colony. Producing seed larvae in an efficient way is an important part of the technology’s feasibility. However, there is limited research published on BSF-colony management, especially on a larger scale. The aim of the study was to investigate the factors that impact the efficiency of the BSF-colony on a large scale BSFL composting company in Kenya in a semi-open setting. The efficiency of the BSF-colony management was assessed in terms of emergence rate (percentage of pupa that emerge as flies), hatching rate (percentage of eggs that hatch and survive to 5 day old larva) and number of eggs laid per female BSF. The result of the study suggests that parasitic wasps (Dirhinus giffardii) can reduce the emergence rate significantly, and high temperatures and water shortage for the adult BSF can reduce the egg production. Observations made during the study indicate that personnel routines and how the BSF-colony is arranged also could affect the egg production significantly. The overall variation in the results suggests that other factors, beyond the ones investigated in the study, impact the efficiency of the BSF-colony, and further research regarding BSF-colony management is recommended / Merparten av det organiska avfallet i världen dumpas eller läggs på deponier, vilket kan leda till spridning av sjukdomar och skadedjur, utsläpp av metangas, förstörelse av landskap och luktföroreningar. En av lösningarna på bristfällig hantering av organiskt avfall är att skapa värde av avfallet. Ett sätt att göra det är med hjälp av fluglarvskompostering med amerikansk soldatfluga (Hermetia illucens). Intresset för fluglarvskompostering har ökat under de senaste tio åren, främst på grund av att det är en teknik som inte behöver innebära höga investeringskostnader. Flugkolonin är den del av processen där sättlarverna som användes i komposteringen produceras. Att sättlarver produceras på ett effektivt sätt är en viktig del av teknikens genomförbarhet. Det finns dock begränsad forskning publicerad om effektivisering av flugkolonier, speciellt sådan som berör storskaliga kolonier. Syftet med studien var att undersöka vilka faktorer som påverkar flugkolonins effektivitet på ett storskaligt fluglarvskomposteringsföretag i Kenya i en halvöppen miljö. Flugkolonins effektivitet bedömdes i termer av metamorfosfrekvens (den andel av pupporna som blir flugor), antalet lagda ägg per fluga och kläckningsfrekvens (den andel ägg som kläcks och överlever till 5-7 dagar gamla larver). Resultatet av studien tyder på att parasitsteklar kan minska metamorfosfrekvensen avsevärt, och att höga temperaturer samt vattenbrist kan minska äggproduktionen. De observationer som gjordes under studien tyder på att personalens rutiner och hur flugkolonin är anordnad också kan påverka äggproduktionen avsevärt. Den relativt stora variationen i alla resultat tyder på att andra faktorer än de som undersökts i studien påverkar flugkolonins effektivitet, fortsatta studier inom effektivisering av flugkolonier rekommenderas
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War Heroes: Constructing the Soldier and the State in Modern China, 1924-1945Xu, Yan 20 May 2013 (has links)
No description available.
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Loneliness and Use of Coping Mechanisms Among U.S. Military Personnel Deployed to the Middle EastShwalb, David Abraham 12 July 2007 (has links) (PDF)
Considering that the greatest fear of deploying military personnel is separation from family, an obvious and overlooked psychological phenomenon that merits further investigation is loneliness. In this study, 131 US troops completed the UCLA Loneliness Scale, Anxiety Control Questionnaire, and a leisurely activity participation scale to predict loneliness with participation in non-work activities in the presence of another moderator (locus of control) and various demographic factors. As hypothesized, the results indicated that 1) the best non-work activity predictors of loneliness were emailing friends and listening to music, 2) external locus of control was positively correlated with loneliness and internal locus of control was negatively correlated with loneliness, and 3) loneliness was positively correlated with length of time deployed.
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Distance Learning During Combat Deployment: A National Exploratory Study of Factors Affecting Course CompletionTrettin, Ann F. 18 October 2017 (has links)
No description available.
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Framing The Post-9/11 service member: How American newspapers frame the post-9/11 service member, ten years laterFong, Laura C. 12 August 2013 (has links)
No description available.
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<b>UNVEILING THE EFFECTS OF DIETARY MODULATIONS ON AVIAN COCCIDIOSIS: INSIGHTS INTO GUT HEALTH AND GROWTH DYNAMICS</b>Jing Yuan (18625108) 28 May 2024 (has links)
<p dir="ltr">For this dissertation, two experiments were conducted to evaluate the effects of a multienzyme mix and partially defatted black soldier fly larvae meal on chicken coccidiosis, focusing on growth performance, intestinal health, and microbiota dynamics. Experiment 1 examined the growth performance, nutrient utilization, microbiota modulations, and other gut health-related indicators of broiler chickens under coccidia challenge, with dietary supplementation of multienzyme, including phytase, xylanase, β-glucanase, amylase, hemicellulase, and pectinase. Ross 308 broilers were assigned to 4 treatments in a 2×2 factorial arrangement comprising of 0 or 50 g·kg-1 multienzyme and oral challenge with PBS or mixed Eimeria spp. oocysts (250,000 E. acervulina, 50,000 E. maxima, and 50,000 E. tenella). Multienzyme reduced (P < 0.05) Eimeria-induced loss in feed efficiency and nutrient utilization, partially explained by reduced decrease of b0,+ amino acid transporter in jejunum. Multienzyme suppressed (P < 0.05) the overexpression of interleukin-8 in the duodenum and jejunum and ameliorated (P = 0.05) the decreased expression of antioxidant heme oxygenase 1 in ileum induced by Eimeria infections. Multienzyme facilitated (P < 0.01) the bloom of short-chain fatty acid-producing and fiber-degrading microbes. The study concluded that multienzyme supplementation partially alleviated the adverse effects of Eimeria infections through various mechanisms, including enhanced nutrient utilization, reduced local inflammations, and restoration of microbial homeostasis. Experiment 2 investigated the growth dynamics, nutrient assimilation, and gut health responses of broiler chickens under coccidia challenge, with dietary supplementation of partially defatted black soldier fly larvae meal (pBSFLM) with increasing concentrations of 0, 60, 120 g/kg. During the infection phase (from d 13 to 19), interactions between Eimeria and pBSFLM revealed significant associations with gain to feed ratio (G:F) (P < 0.05) and cecal interferon-γ (IFN-γ, P < 0.05), while showing tendencies for crypt depth (P = 0.088) and cecal acetate concentration (P = 0.06). The incremental inclusion of pBSFLM demonstrated a negative effect on the G:F and the generation of IFN-γ and acetate in the ceca during coccidia challenge. Conversely in the non-challenged birds, the impact of dietary pBSFLM varied from neutral (e.g. G:F) to potentially advantageous (e.g. acetate). Challenged broilers exhibited decreased (P < 0.01) BW, feed intake (FI), G:F, as well as the apparent ileal digestibility (AID) and total tract nutrient utilization (ATTU) of DM, gross energy (GE), and nitrogen (N). Eimeria challenge led to reduced (P < 0.01) serum carotenoid concentrations, increased (P < 0.01) ileal crypt depth (CD), and an increase in the generation of branched-chain fatty acids, specifically isobutyrate (P = 0.059) and isovalerate (P < 0.05) in the ceca. Dietary pBSFLM addition caused a linear reduction (P < 0.05) in BW, FI, G:F, and N utilization. Furthermore, a tendency (P < 0.06) was observed where pBSFLM linearly decreased the villi height: CD ratio and reduced goblet cell density in the villi. Results from this experiment reveal that higher levels of pBSFLM supplementation, especially at 12%, had detrimental effects on growth, ileal morphology, cecal acetate production, and downregulated the expression of key cytokines in response to coccidia infection. In summary, these studies shed light on the multifaceted effects of dietary interventions on Eimeria infections in broiler chickens, with a specific emphasis on growth, nutrient utilization, and indicators of gut health.</p>
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The Russian Armed ForcesBurns, Orren 08 1900 (has links)
This thesis is an examination of the Russian Armed Forces from the time of Peter the Great in the eighteenth century to the Red Army of the present.
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The citizen-officer ideal: a historical and literary inquiryDeBuse, Mark R. 03 1900 (has links)
Approved for public release, distribution is unlimited / Due to their unique expertise, military officers have always held a special position within Western society. Yet, while individuals who have demonstrated knowledge of warfare and prowess in battle have long been held in high regard by society and the members of their profession, it is those who have also demonstrated the ideals of citizenship and chivalry who serve as the icons for thoughtful military officers. The purpose of this thesis is to examine the evolution of the citizen-officer ideal- through a close study of historical and literary case studies. By establishing a common theme or values among completely separate exemplars of this ideal, a continuum joining Odysseus, Cincinnatus, Beowulf, and Gawain to Washington, Chamberlain, and Marshall might eventually be carried forward to the present and the modern military officer. Specific focus is given to the roles that classical notions of citizenship and the Code of Chivalry have played in shaping the ethos of the American officer. / Lieutenant, United States Navy
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Creating Virginia’s War Memorial Carillon in the Shadow of the Civil WarLambertz, Witek Jessica 17 April 2014 (has links)
This thesis explores the creation of the Virginia’s War Memorial Carillon in relation to the persistent significance of the Civil War in Virginia. By focusing on the debates about Virginia’s War Memorial Library, Tomb of the Unknown Soldier, and Carillon, this thesis reconstructs the sentiments and historical legacy that shaped the multitude of decisions leading to the creation of Virginia’s World War memorial. Virginia seriously considered two other proposals for war memorials—the War Memorial Library and the Virginia Tomb of the Unknown Soldier—before ultimately constructing the War Memorial Carillon. Concerns for appropriateness and residual attachments to the Lost Cause of the Civil War inform the debates about the best memorial to represent Virginia and honor the soldiers, sailors, marines, and women from Virginia who fought in the World War.
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Analýza faktorů, které významně ovlivňují subjektivní vnímání psychické zátěže / Significantly influence subjective psychological Stress perceived Factor Analysis.Pecha, Jiří January 2011 (has links)
Title: Significantly influence subjective psychological Stress perceived Factor Analysis. Objectives: The main Aim of this Work is subjective perceived psychological Stress changing comparation of professional Soldiers Group before and after psychological Stress, They receive every Day in their Job. Methods: The Method used in this Work is Research by standard Questionnaire consists of two Parts. One of Them was realised before psychological Stress and the second One was realised after the psychological Stress. Both Parts of Questionnaires was analyzed and statisticaly evaluated. Results: By the Research was found, that from researching Age, Education and Length of Service in Unit Factors, the most significant Influence on Changes of subjective perceived psychological Stress have the Age and the Length of Service Factors. After that was found, the subjective perceived psychological Stress at the End of all-day Duty have increased. Keywords: Stress, psychological Stress, Frustration, Trauma, Post-traumatic Stress Disorder, peacekeeping Operation, Soldier.
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