1,160 research outputs found
Towards Sustainable Development of Small-Scale Fisheries in the Philippines: Experiences and Lessons Learned from Eight Regional Sites
The focus of this paper is on the governance of small-scale or municipal fisheries in the Philippines in light of the critical role they play in the livelihoods of coastal communities and in the nation as a whole. The information and insights presented in this lessons learned brief derive from the project entitled Strengthening Governance and Sustainability of Small-Scale Fisheries Management in the Philippines: An Ecosystem Approach. The project was funded principally by the Department of Agriculture's Bureau of Agricultural Research (DA-BAR), and implemented from 2008 to 2011 by WorldFish in collaboration with the Department of Science and Technology (DOST) and selected partners. The underlying project's goal was to 'strengthen governance and sustainability of small-scale fisheries management in the Philippines.' There were a variety of objectives spread across two project phases but the primary objectives relevant to this brief include: (1) identifying issues at project sites and assessing potential for an ecosystem based approach to fisheries management, and (2) assessing current fisheries management practices at different levels of governance and identifying best practices. The purposes of this paper are twofold. First, it aims to provide brief highlights of the project findings; second, it aims to present the lessons learned in project implementation covering substantive sectoral concerns as well as methodological issues. It wraps up with some strategic directions that need to be undertaken to reverse the deteriorating conditions of small-scale fisheries (SSF) while at the same time promoting their sustainable development
Diverse Picturebooks for Diverse Children: The Others in Singapore Teachers’ Discourse and Pedagogy
This study investigates how teachers construct the Others in their use of diverse picturebooks for diverse children. Data from open-ended learning prompts and focus group discussions with in-service teachers in Singapore reveal their conflicted discourse and practice in relation to using diverse picturebooks in the classroom to promote inclusive education. On the one hand, the teachers navigate their way around an “awareness of Others” but, on the other hand, they also express discomfort toward an expanded definition of “multiculturalism” and “diversity” in a relatively tightly controlled educational context. This paper aims to bring to the surface the multifaceted nature of teachers' newly found openness to broader and more inclusive notions of Others, which is conflicted but also actively compartmentalizes different discourses in order to make inclusive classroom practice possible
Cauchy's residue theorem for a class of real valued functions
Let be an interval in and let be a real valued
function defined at the endpoints of and with a certain number of
discontinuities within . Having assumed to be differentiable on a
set to the derivative , where is a subset of at whose points can take values or not be defined at all,
we adopt the convention that and are equal to 0 at all points of
and show that %, where
denotes the total value of the \textit{% Kurzweil-Henstock} integral. The
paper ends with a few examples that illustrate the theory.Comment: 6 page
Evaluation of initial growth of poplar clones in North Patagonia
En los valles irrigados de Río Negro y
Neuquén, el cultivo de álamos acompañó
históricamente la producción agrícola,
utilizándose clones de Populus nigra L. en cortinas
rompeviento y clones de Populus xcanadensis
Moench. para las forestaciones en macizo.
Buscando ampliar la disponibilidad de genotipos
para los diferentes sitios de cultivo, se instaló
un ensayo comparativo con trece clones de
álamo en la localidad de Pomona, Provincia
de Río Negro. Se evaluaron seis clones de
P. xcanadensis ('Triplo', 'Ragonese 22 INTA',
"Pangui INTA", "Pudú INTA", y los testigos
comerciales 'Conti 12' e 'I-214'), seis clones de
P. deltoides ('Harvard', 'Onda', 'Stoneville 67',
'Carabelas INTA', "20-82" y "C-657") y un clon de
P. xcanescens. Se utilizó un diseño experimental
de bloques completos al azar (DBCA) con quince
repeticiones y parcelas de una planta. Luego
de cuatro períodos de crecimiento, 'I-214' y
'Triplo' tuvieron los mayores incrementos de
DAP, no encontrándose diferencias significativas
con los valores de 'Conti 12', 'Ragonese
22 INTA', "Pangui INTA", "Pudú INTA", "20-82" y
P. xcanescens. Los menores crecimientos fueron
observados en los deltoides 'Stoneville 67' y
"C- 657". Los clones 'Ragonese 22 INTA', 'Triplo'
y "20-82" constituyen alternativas para el cultivo
de álamos en macizos y cortinas rompeviento.In the irrigated valleys of Río Negro
and Neuquén poplar cultivation historically
accompanied agricultural production using
clones of Populus nigra L. in shelterbelts
and Populus xcanadensis Moench. in forest
plantations. With the aim to extend the availability
of genotypes for different cultivation sites,
a comparative trial with thirteen clones of
poplar was installed at Pomona, Río Negro
province. Six clones of euramerican hybrid
poplar (P. xcanadensis 'Triplo', 'Ragonese
22 INTA', "Pangui INTA", "Pudú INTA" and
commercial control 'Conti 12' and 'I-214'),
six clones of eastern cottonwood poplar
(P. deltoides 'Harvard', 'Onda', 'Stoneville 67',
'Carabelas INTA', "20-82" and "C-657") and
one clone of P. xcanescens were evaluated. A
completely randomized block design was used
with fifteen replications and one plant per plot.
After four growth periods, 'I-214' and 'Triplo'
had the largest increases of diameter at breast
height (DBH) while no significant differences in
the values of 'Conti 12', 'Ragonese 22 INTA',
"Pangui INTA", "Pudú INTA", "20-82" and
P. xcanescens were found. The lowest increases
were observed in deltoids 'Stoneville 67' and
"C- 657". 'Ragonese 22 INTA', 'Triplo' and
"20- 82" are alternatives for growing poplar in
forest plantations and shelterbelt.Fil: Thomas, Esteban R..
Instituto Nacional de Tecnología Agropecuaria (Argentina)Fil: Garces, Anibal C.
Modificaciones fisarias en el conejo inducidas por campos electromagnéticos
Se efectúa un estudio experimental para valorar los efectos de campos electromagnéticos
de dos intensidades diferentes (2,4 y 10 Gauss) sobre la fisis de huesos largos. Se
emplearon 45 conejos de 4 semanas divididos en tres grupos de 15 animales, a los que se colocó
unas bobinas de Helmholtz en la rodilla derecha durante ocho horas diarias. Cinco animales
de cada grupo fueron estimulados (subgrupo testigo). El primer grupo se sacrificó tras cuatro
semanas, el segundo tras 12 semanas y el tercero llevó las bovinas durante 12 semanas y luego
se sacrificó 12 semanas después para comprobar la duración de los efectos de la corriente. Los
resultados demuestran que la diferencia en longitud entre los huesos estimulados y sus contralaterales
fue mayor en el subgrupo sometido a 10 Gauss, aunque en ningún caso superior al
2,5%. La altura fisaria fue mayor en los huesos estimulados que en sus contralaterals, aunque
no se apreciaron otras diferencias histológicas. No obstante, el cierre de la fisis se retrasó en
todos los huesos estimulados con 10 Gauss y evolucionó normalmente en el resto. Los huesos
de los subgrupos testigo no mostraron diferencias entre ellos.This study was carried out to compare the effects of two different electromagnetic
fields (2,4 and 10 Gauss) on the growth plate of long bones. Forty five 4-week-old rabbits
were divided in three groups of 15 animals each. All of them wore two Helmholtz coils on their
right knee for 8 hours daily and then were sacrificed, the first after for 4 weeks, the second
one after 12 weeks and the third one after 24 weeks. In this last group the coils were removed
after 12 weeks and the animals allowed to live other 12 weeks to study the evolution of the
growth plate after cesation of the stimulation. In each group, animals were not stimulated
(sham subgroup). Results showed a greater difference in length in those bones stimulated with
10 Gauss, in respect to their contralateral, than the other subgroups. However these differences
were less than 2,5% of the total length of the bone. Growth plate height of stimulated bones
was greater than their contralateral in all subgroups with no other remarkable histological
differences. Closure of the growth plate was delayed in the 10 Gauss stimulated bones but not
in the rest. No differences were found among bones of sham subgroups at any time
Crop-based irrigation operations in the North West Frontier Province of Pakistan. Vol.II: Research approach and interpretation. Final Report
Irrigation management / Crop-based irrigation / Research / Irrigation canals / Water demand / Performance evaluation / Agricultural production / Pakistan / North West Frontier Province
Estudio comparativo de dos métodos de radiografías forzadas para detectar la insuficiencia del ligamento cruzado anterior
En 32 pacientes con rotura unilateral de ligamento cruzado anterior (LCA) comprobada
mediante artroscopia se efectuó previamente una radiografía forzada de ambas rodillas
para estudiar el desplazamiento anterior de la tibia. Cada paciente fue estudiado mediante dos métodos
diferentes, Lachman activo radiológico (LAR) y TelosR. Se asumió el diagnóstico radiológico
de inestabilidad cuando la diferencia en el desplazamiento entre la rodilla lesionada y su control fue
superior a 3 mm. Los resultados demuestran que la diferencia media del desplazamiento entre la
rodilla lesionada y la normal fue superior a 3 mm con ambos métodos. En el lado interno 3,7 ±
3,7 mm con el LAR y 4,8 ± 5,8 mm con el Telos (diferencias no significativas). En el lado externo
esta diferencia fue de 4,3 ± 4,7 nun con el LAR y de 6,8 ± 6 mm con el Telos (p < 0,05). A pesar
de estos resultados, ambos métodos mostraron una sensibilidad para la detección de la insuficiencia
ligamentosa inferior al 70%, lo que cuestiona su valor para el diagnóstico de la misma.In a prospective study, 32 patients with arthroscopically proved anterior cruciate
ligament rupture were previously stressradiographied on both knees through two methods:
the quadriceps-contraction technique (QCT) and the TelosR device. Instability was
assumed when radiological differential displacement between injured and normal knee was greated
than 3 mm. Results showed that this differential displacement was greater than 3 mm with
both methods: 3,7 ± 3,7 mm v.s. 4,8 ± 5,8 mm in the medial side (differences not significant)
and 4,3 ± 4,7 mm v.s. 6,8 ± 6 mm (p < 0.05) for the lateral side with the QCT and TelosR respectively.
In spite of these differences, both methods showed a sensitivity lower than 70%
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