2,356 research outputs found
Report on geophysical and geological surveys at Blackmount, Argyllshire
Blackmount, on the southern fringe of Rannoch Moor is
largely drift covered but, where exposed, the underlying
Precambrian Moine psammite contains granitic veins
which probably stem from the adjacent (Devonian) Moor
of Rannoch granite. These veins are generally pyritiferous
and, at one locality, carry small amounts of molybdenite.
Blackmount is also traversed by the Ericht-Laidon Fault,
which, in theory, and by analogy with a similar fault to
the south-east (the Tyndrum Fault), could be a site of
significant sulphide mineralisation. Magnetic, very low
frequency electro-magnetic (VLF EM), slingram EM and
induced polarisation measurements carried out in the area
of the veins suggest that the mineralisation has little or no
lateral or depth continuation. Similar surveys were
successful in locating the Ericht-Laidon Fault beneath
drift, but suggest no associated mineralisation down to the\ud
greatest depth investigated
Influence of Foliar Exposure, Adjuvants, and Rain-free Period on the Efficacy of Glyphosate for Torpedograss Control
The proportion of torpedograss tissue exposed to glyphosate at application rates of 0.28, 0.56, 1.12, 2.24, and 4.48 kg/ha affected control as measured by regrowth. The effect of tissue exposure was more pronounced as application rate decreased. This study suggests that higher rates of glyphosate need to be used during higher water levels, when less torpedograss tissue is exposed to herbicide spray and lower rates may be used during periods of low water levels. Addition of the water conditioning agent Quest (R) (0.25% v/v) to glyphosate spray mixtures diminished the influence of simulated rain events following glyphosate application. Twelve other adjuvants did not influence the effect of simulated rain events
Youth-identified Considerations for Programming to Support Newcomers’ Healthy Development: A Group Concept Mapping Study
Background There is a well-documented need for more responsive promotion and prevention programming for young immigrants and refugees in the context of mental health and healthy development. Incorporating the voice of newcomers in the development of promotion and prevention efforts could assist in producing culturally-relevant materials and improve program outcomes. Objective Our goal was to utilize youth voice to identify considerations for developing programming to support newcomer youths’ healthy development. Methods We employed mixed methods and analyzed data using concept mapping. A total of 37 newcomers between the ages of 14 and 22 participated in focus groups to share their ideas for creating programming that would focus on relationships and well-being. Relevant responses were collated, cleaned, and generated into unique statements, and then sorted individually by 26 youth into thematically similar categories. We used multidimensional scaling and hierarchal cluster analysis to produce a concept map. Results Six concepts, in rank order of importance, emerged as follows: create a space for sharing; discuss relational issues; teach strategies for adjusting to a new country; teach wellness skills; have feel-good activities; and plan for diversity. Conclusions Participants’ lived experience and their own attendance in programming at newcomer organizations assisted them in brainstorming what types of activities, topics, and skills would be helpful for other newcomer youth, as well as considerations for facilitators implementing such programming. Promotion and prevention efforts intended for newcomer youth may benefit by incorporating ideas from the concept map
Investigation of stratiform sulphide mineralisation at Meall Mor, South Knapdale, Argyll
A co-ordinated geochemical-geophysical-geological investigation of copper
mineralisation in the Meal1 ?46r area, South Knapdale, Argyll was carried 0th
in 1976 and followed by a drilling programme of 3 shallow holes in early 1977.
The mineralisation occursin a zone of weak stratiform sulphide mineralisation
(the pyrite zone) with a strike length of 1Okm in the Upper &ins Quartz&e
of the Middle Dalradian.
The geochemical drainage survey showed the existence of a strongly anomalous
distribution of Cu and Sb in the Abhainn Srathain draining south from .
Meal1 M&- and detailed soil sampling over the pyrite zone outlined a broad
area enriched in copper. Deeper soil sampling confirmed the anomalously
high copper values and a coincident IP anomaly was found stretching from
Meal1 M& south to the old mine workings on Abhainn Srathain, and is probably
caused by a local enrichment of pyrite and chalcopyrite within the pyrite
zone.
Three boreholes were drilled; two on coincident geochemical and geophysical
anomalies, and the third beneath the old mines at Abhainn Srathain. Copper
values in the first two holes range up to 0.24% Cu over 4.27m, but up to
1.06% Cu over 2.67m in the third and this enrichment may be related to a
later remobilisation of the disseminated chalcopyrite. The results of subsequent
drilling at two other sites are given in Appendix III
Feasibility Trial of the School-Based STRONG Intervention to Promote Resilience Among Newcomer Youth
There are thousands of refugee students in Canadian schools and many struggle with distress and trauma symptoms. Even those not demonstrating overt distress may face adjustment challenges. This paper describes the pilot of the Supporting Transition Resilience of Newcomer Groups (STRONG) program in ten schools. STRONG is a 10-session, manualized program focused on building skills and helping students process their migration journey. This pilot used a pragmatic mixed-methods approach to evaluate the feasibility of STRONG, with a focus on acceptability, implementation, and perceived utility of the intervention. Clinicians (n = 16) provided data at the training, throughout the intervention and at the end through clinician surveys and focus groups. Clinicians reported high levels of acceptability for the training and program. Implementation challenges included time constraints, external influences, and some challenges with language. Overall STRONG was seen to provide significant positive benefits for students in increasing connectedness, stress management, and coping strategies. Clinicians felt that students developed more positive self-image and had improved optimism. This feasibility trial of the STRONG program indicated the potential utility for promoting resilience and reducing distress among refugee students through a structured, school-based group intervention
Fishmeal replacement research for shrimp feed in Australia
The global expansion and intensification of aquaculture has brought with it an increasing requirement for formulated feeds. Feeds for carnivorous fish and shrimp contain a large proportion ingredient of marine origin, particularly fishmeal. However, despite the continuing increase in demand for fishmeal, world fishmeal production is unlikely to increase further. The identification and development of
alternative feed ingredients that can replace fishmeal is recognised as an international research priority. A nationally coordinated research program in Australia has evaluated a wide range of ingredients produced by Australia’s agricultural industries. Information has been obtained on the chemical composition, apparent digestibility (AD) and subsequent assimilation and utilisation of each of the ingredients evaluated. The research focused on three key warmwater species endemic to Australia: the omnivorous marine crustacean, black tiger shrimp Penaeus monodon; the euryhaline carnivorous fish, barramundi or Asian seabass Lates calcarifer and the freshwater omnivorous fish, silver perch Bidyanus bidyanus. Across the three key species, the AD for crude protein was highest for fishmeal though the more refined, high-protein ingredients of plant origin were equally well digested. The AD of energy was relatively low in ingredients with a high carbohydrate or fibre content. Dehulled lupins (L. angustifolius) and high-protein, low-ash meat meals were found to have the greatest potential to replace fishmeal in shrimp diets. Meat meal can replace about half of the digestible crude protein, and dehulled lupins can replace a quarter of the digestible crude protein, in a shrimp diet without significantly affecting biological performance, provided that the balance of the crude protein in the diet comes predominantly from high quality ingredients of marine origin. When the diets contain these ingredients of marine origin at inclusions of at least 50 g.kg-1, specific feeding effectors do not appear to necessary to maintain the palatability of the diets
Using Youth Voice to Inform Programs and Services Promoting Newcomers\u27 Healthy Development
Effective programs to support the healthy development and well-being of youth who have immigrated to Canada are needed. This integrated-article dissertation accentuated the perspectives of refugee and immigrant youth to identify considerations for programming and strategies to promote their healthy development. The first paper (Chapter Two) utilized focus groups to explore newcomer youths’ experiences relocating to a new country and advice for other youth who have recently arrived in Canada. We identified five overarching themes across groups through thematic analysis: (1) moving to a new county is hard, (2) maintain a healthy mindset, (3) take an active role in the adjustment process, (4) stay true to who you are, and (5) you are not alone. Findings captured the hardships of adapting to a new country while also demonstrating participants’ resilience, coping skills, and strategies to lead meaningful lives.
The second paper (Chapter Three) utilized youth voice to identify considerations for developing programming to support newcomer youths’ relationships and well-being. We applied group concept mapping and identified six concepts as follows, in rank order of importance: create a space for sharing; discuss relational issues; teach strategies for adjusting to a new country; teach skills for wellness; have feel-good activities; and plan for diversity. Participants’ lived experience and their own attendance in programming at newcomer-serving organizations provided a basis for them to brainstorm what types of activities, topics and skills they believe would be helpful for other newcomer youth, as well as considerations for facilitators implementing such programming.
Finally, the third paper (Chapter Four) evaluated the acceptability of an evidence-informed healthy relationships program with newcomer youth at three newcomer-serving agencies. Using a mixed-methods case study approach, the perspectives of youth participants, program facilitators, and agency administrators suggested the program is promising in terms of fit and acceptability. Stakeholders also identified how facilitators can tailor content and activities to be more accessible and culturally meaningful for immigrants and refugees. Taken together, the findings from these papers highlight the perspectives of newcomer youth and advance understanding of how to support their adjustment and healthy development
Refraction of Electromagnetic Energy for Wave Packets Incident on a Negative Index Medium is Always Negative
We analyze refraction of electromagnetic wave packets on passing from an
isotropic positive to an isotropic negative refractive index medium. We
definitively show that in all cases the energy is always refracted negatively.
For localized wave packets, the group refraction is also always negative.Comment: 5 pages, 3 figure
Universal Cellular Automata and Class 4
Wolfram has provided a qualitative classification of cellular automata(CA)
rules according to which, there exits a class of CA rules (called Class 4)
which exhibit complex pattern formation and long-lived dynamical activity (long
transients). These properties of Class 4 CA's has led to the conjecture that
Class 4 rules are Universal Turing machines i.e. they are bases for
computational universality. We describe an embedding of a ``small'' universal
Turing machine due to Minsky, into a cellular automaton rule-table. This
produces a collection of cellular automata, all of which are
computationally universal. However, we observe that these rules are distributed
amongst the various Wolfram classes. More precisely, we show that the
identification of the Wolfram class depends crucially on the set of initial
conditions used to simulate the given CA. This work, among others, indicates
that a description of complex systems and information dynamics may need a new
framework for non-equilibrium statistical mechanics.Comment: Latex, 10 pages, 5 figures uuencode
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