604 research outputs found
Wetland entrepreneurs: diversity in diversification in Zambian farming
Purpose
This paper explores enterprise diversification amongst wetland farmers in Zambia as a way of reducing poverty and improving sustainability. It identifies ways in which such entrepreneurial activities can be supported and applied more widely.
Method
A qualitative study of Zambian farmers, based on a series of workshops and interviews held in Zambia with farmers and farm business advisers.
Findings
Despite adopting new technologies most farmers are restricted to the local market where their increased production holds down prices. However, a very small number of farmers are able to progress to production and marketing for markets in major urban centres hundreds of kilometres away, and considerably more are able to use the capital accumulated from wetland farming to diversify their household enterprises to reduce poverty and improve the sustainability and resilience of their livelihoods.
Prior work
No work has been undertaken in diversification strategies of Small scale farmers in Zambia
Farm adaptive business strategies in crisis management: COVID-19
The global COVID-19 pandemic significantly impacted businesses worldwide, with rural businesses being no exception. This study examines the effects of the global crisis on upland farmers in England. It builds on the under-researched area of constrained rural entrepreneurship. Institutional theory is applied as a theoretical lens to understand how crisis events shape the constrained institutional contexts in which farm businesses strategically navigate. Using a qualitative, multiple case study approach, we explore how different farmers, traditionalist and entrepreneurial, have strategically responded to the aftermath of crisis-influenced constraints. Our findings highlight the importance of business strategyâparticularly farm diversificationâin helping farmers navigate these challenges. We provide a conceptual framework, the Farm Crisis Adaptation Framework, (FCAF) that theorizes farmer adaptation strategies in response to crisis situations. Our findings indicate a greater needed for rural policymakers to help develop the strategic entrepreneurship skillsets of farmersâhelping farmers to future-proof their businesses against uncertainties. Moreover, investment is needed in the local and regional economy, establishing a conducive environment supportive of farm development strategies
Meijer\u27s Makers
This Innovation Portfolio is the result of a semester long project that examined the role of a regional campus in its community: more specifically, examining how the GVSU Meijer Campus can best integrate into and support its community. The Meijer Campus was originally designed to engage adult learners of the Holland business community. Our team sought out how to reinvigorate the campus through innovating based on this original goal. During the winter of 2017, our team undertook a series of steps to better understand the needs of the Holland community, considering how to design the Meijer Campus to fit those needs. Interviews with stakeholders and secondary research led us to common insights that were then composed into innovations and later prototypes. The final prototype was the Meijer Makerâs Design Lab, a gymnasium for the mind
Implications of transient methane flux on associated biological communities in high-arctic seep habitats, Storbanken, Norwegian Barents sea
The continental margins of the Arctic Ocean basin contain methane seeps, where transient fluxes of seafloor methane are released due to the thermal dissociation of gas hydrates. An increase in shallow methane seeps identified over the past decade, potentially due to enhanced warming of the Arctic Ocean bottom water and associated destabilization of hydrate structure. Biological communities associated with methane release east of Svalbard in the Barents Sea (Storbanken Crater site, 76° 46.7â˛N, 35° 43.5â˛E, depths between 120 mâ300 m depths) were investigated using towed camera imagery and ship-based platforms during a 2017 CAGE17-2 cruise on the RV Helmer Hanssen. We analyzed relationships among methane flux data, seafloor habitat characteristics, and biological community structure (i.e., presence and distribution of megafauna and expression of microbial mats) from a total of 14 surveys (6827 images and 40 multicore sediment cores) within the Storbanken Crater area and compared it to 2015 data. Unlike seep expressions at deeper sites (âź1200 m) in the Norwegian margin region, no seep-endemic, chemosynthetic-associated megafaunal species were observed at the shallow surveyed sites and all sites hosted similarly diverse communities of non-seep species, including commercially important fish and crustaceans. Methane concentrations did not markedly differ between the crater and non-crater sites. Rates of methane gas advection through sediments (in the form of flares) were relatively low and concentration of methane was even lower in porewater samples at the crater site. We present the first evidence of methane flare flux and intermittent microbial mat distribution with associated folliculinid ciliates, which suggests a long history of methane emissions and a transient seep environment in spatial and temporal flux. Together, this study presents a critical baseline on the temporal release of arctic methane and benthic biological communities to initiate temporal studies that identify future changes and predict the impact of climate chang
REDD+ on the rocks? Conflict over forest and politics of justice in Vietnam
In Vietnam, villagers involved in a REDD+ (reduced emissions from deforestation and forest degradation) pilot protect areas with rocks which have barely a tree on them. The apparent paradox indicates how actual practices differ from general ideas about REDD+ due to ongoing conflict over forest, and how contestations over the meaning of justice are a core element in negotiations over REDD+. We explore these politics of justice by examining how the actors involved in the REDD+ pilot negotiate the particular subjects, dimensions, and authority of justice considered relevant, and show how politics of justice are implicit to practical decisions in project implementation. Contestations over the meaning of justice are an important element in the practices and processes constituting REDD+ at global, national and local levels, challenging uniform definitions of forest justice and how forests ought to be managed
A Proposal for Integrated Efficacy-to-Effectiveness (E2E) Clinical Trials
We propose an âefficacy-to-effectivenessâ (E2E) clinical trial design, in which an effectiveness trial would commence seamlessly upon completion of the efficacy trial. Efficacy trials use inclusion/exclusion criteria to produce relatively homogeneous samples of participants with the target condition, conducted in settings that foster adherence to rigorous clinical protocols. Effectiveness trials use inclusion/exclusion criteria that generate heterogeneous samples that are more similar to the general patient spectrum, conducted in more varied settings, with protocols that approximate typical clinical care. In E2E trials, results from the efficacy trial component would be used to design the effectiveness trial component, to confirm and/or discern associations between clinical characteristics and treatment effects in typical care, and potentially to test new hypotheses. An E2E approach may improve the evidentiary basis for selecting treatments, expand understanding of the effectiveness of treatments in subgroups with particular clinical features, and foster incorporation of effectiveness information into regulatory processes.National Center for Research Resources (U.S.) (Grant UL1 RR025752)National Center for Advancing Translational Sciences (U.S.) (Grant UL1 TR000073
RONIN Is an Essential Transcriptional Regulator of Genes Required for Mitochondrial Function in the Developing Retina
SummaryA fundamental principle governing organ size and function is the fine balance between cell proliferation and cell differentiation. Here, we identify RONIN (THAP11) as a key transcriptional regulator of retinal progenitor cell (RPC) proliferation. RPC-specific loss of Ronin results in a phenotype strikingly similar to that resulting from the G1- to S-phase arrest and photoreceptor degeneration observed in the Cyclin D1 null mutants. However, we determined that, rather than regulating canonical cell-cycle genes, RONIN regulates a cohort of mitochondrial genes including components of the electron transport chain (ETC), which have been recently implicated as direct regulators of the cell cycle. Coincidentally, with premature cell-cycle exit, Ronin mutants exhibited deficient ETC activity, reduced ATP levels, and increased oxidative stress that we ascribe to specific loss of subunits within complexes I, III, and IV. These data implicate RONIN as a positive regulator of mitochondrial gene expression that coordinates mitochondrial activity and cell-cycle progression
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Autologous cell therapy for aged human skin: A randomized, placebo-controlled, phase-I study
YesIntroduction: Skin ageing involves senescent fibroblast accumulation, disturbance in extracellular matrix (ECM) homeostasis, and decreased collagen synthesis. Objective: to assess a cell therapy product for aged skin (RCS-01; verum) consisting of ~25 Ă 106 cultured, autologous cells derived from anagen hair follicle non-bulbar dermal sheath (NBDS). Methods: For each subject in the verum group, 4 areas of buttock skin were injected intradermally 1 or 3 times at monthly intervals with RCS-01, cryomedium, or needle penetration without injection; in the placebo group RCS-01 was replaced by cryomedium. The primary endpoint was assessment of local adverse event profiles. As secondary endpoints, expression of genes related to ECM homeostasis was assessed in biopsies from randomly selected volunteers in the RCS-01 group taken 4 weeks after the last injection. ÂResults: Injections were well tolerated with no severe adverse events reported 1 year after the first injection. When compared with placebo-treated skin, a single treatment with RCS-01 resulted in a significant upregulation of TGFβ1, CTGF, COL1A1, COL1A2, COL3A1, and lumican mRNA expression. Limitations: The cohort size was insufficient for dose Âranging evaluation and subgroup analyses of efficacy. Conclusions: RCS-01 therapy is well tolerated and associated with a gene expression response consistent with an improvement of ECM homeostasis.Replicel Life Sciences Inc, Vancouver, Canada
Fibroblast cell-based therapy prevents induction of alopecia areata in an experimental model
YesAlopecia areata (AA) is an autoimmune hair loss disease with infiltration of proinflammatory cells into hair follicles. Current therapeutic regimens are unsatisfactory mainly because of the potential for side effects and/or limited efficacy. Here we report that cultured, transduced fibroblasts, which express the immunomodulatory molecule indoleamine 2,3-dioxygenase (IDO), can be applied to prevent hair loss in an experimental AA model. A single intraperitoneal (IP) injection of IDO-expressing primary dermal fibroblasts was given to C3H/HeJ mice at the time of AA induction. While 60â70% of mice that received either control fibroblasts or vehicle injections developed extensive AA, none of the IDO-expressing fibroblast-treated mice showed new hair loss up to 20 weeks post injection. IDO cell therapy significantly reduced infiltration of CD4+ and CD8+ T cells into hair follicles and resulted in decreased expression of TNF-Îą, IFN-Îł and IL-17 in the skin. Skin draining lymph nodes of IDO fibroblast-treated mice were significantly smaller, with more CD4+ CD25+ FoxP3+ regulatory T cells and fewer Th17 cells than those of control fibroblast and vehicle-injected mice. These findings indicate that IP injected IDO-expressing dermal fibroblasts can control inflammation and thereby prevent AA hair loss.Canadian Institutes of Health Researches (Funding Reference Number: 134214 and 136945)
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