Water Quality and Fisheries Issues Accompanying Population Growth in the Philippines

Fishing should be an employment of last resort. This article argues why through analysis of water quality and fisheries in conjunction to the role of human population and overfishing on yields.fisheries sector, water sector, population and family relation

Bioeconomic Analysis of Management Options for Tropical Fisheries Using a Bicriteria Programming Model

A possible approach to the management of the multispecies multi-gear fishery in a developing country was explored. The small petagics fishery in central Philippines was analyzed in three stages. A dynamic pool model represented the dynamics of the stocks. The optimal allocation of catch across competing fleets was modeled having regard for the pursuit of two conflicting objectives, maximizing employment and fishing profits. Alternative management schemes were then explored. On the basis of the criteria used, the optimal fleet size was a small fraction of the existing fleet size. Calculation of increased target yields through regulation of fishing mortality and selectivity showed that the increase in optimal feet size would be moderate because the current level of exploitation is close to that producing the maximum yield-per-recruit. An agenda for exploration of further management alternatives appropriate to the social and economic policy objectives of a developing country is discussed.bioeconomics, Philippines, small pelagics, multicriteria decision making, fishery economics, fishery management, tropical fisheries, Environmental Economics and Policy, Production Economics,

Extended Benefit-Cost Analysis of Management Alternatives: Pagbilao Mangrove Forest

Mangroves are important fish hatcheries. It prevents coastal erosion and provides timber resources. However, it limits land access to coastal and fishpond areas. This article presents a cost-benefit analysis on mangrove preservation.natural resources and environment, environmental issues

Who\u27ll Buy My Violets? : La Violetera

https://digitalcommons.library.umaine.edu/mmb-vp/2752/thumbnail.jp

How Much Water Do Households Require?

What is the basic water requirement per month of a Philippine household consisting of six members? This study provides an estimate based on various household activities dovetailed to local practices and situation which may serve as a valuable input in water sector planning, water supply allocation, and water pricing determination.water sector, water demand

Immature rats show ovulatory defects similar to those in adult rats lacking prostaglandin and progesterone actions

Gonadotropin-primed immature rats (GPIR) constitute a widely used model for the study of ovulation. Although the equivalence between the ovulatory process in immature and adult rats is generally assumed, the morphological and functional characteristics of ovulation in immature rats have been scarcely considered. We describe herein the morphological aspects of the ovulatory process in GPIR and their response to classical ovulation inhibitors, such as the inhibitor of prostaglandin (PG) synthesis indomethacin (INDO) and a progesterone (P) receptor (PR) antagonist (RU486). Immature Wistar rats were primed with equine chorionic gonadotropin (eCG) at 21, 23 or 25 days of age, injected with human chorionic gonadotropin (hCG) 48 h later, and sacrificed 16 h after hCG treatment, to assess follicle rupture and ovulation. Surprisingly, GPIR showed age-related ovulatory defects close similar to those in adult rats lacking P and PG actions. Rats primed with eCG at 21 or 23 days of age showed abnormally ruptured corpora lutea in which the cumulus-oocyte complex (COC) was trapped or had been released to the ovarian interstitum, invading the ovarian stroma and blood and lymphatic vessels. Supplementation of immature rats with exogenous P and/or PG of the E series did not significantly inhibit abnormal follicle rupture. Otherwise, ovulatory defects were practically absent in rats primed with eCG at 25 days of age. GPIR treated with INDO showed the same ovulatory alterations than vehicle-treated ones, although affecting to a higher proportion of follicles. Blocking P actions with RU486 increased the number of COC trapped inside corpora lutea and decreased ovulation. The presence of ovulatory defects in GPIR, suggests that the capacity of the immature ovary to undergo the coordinate changes leading to effective ovulation is not fully established in Wistar rats primed with eCG before 25 days of age

Digital filter implementation over FPGA platform with LINUX OS

AbstractThe embedded processors on FPGA's are a good tool to specific propose works. In this work we present how the FPGA is used to apply a Sobel filter to a set of images, also the step needed to set-up the entire system is described. An embedded processor, with a Linux distribution implemented is used to run a special compilation of C filter program, the filter is compared with the results obtained with a PC running the same filter, in the embedded system all the process runs in the FPGA and the exit file can be accessed by ftp or http server embedded into the Linux system

Sexual behavior, use of contraceptive methods and pregnancy in young people from a population affiliated in a health insurer company in Colombia 2018

Describe the average age of sexual life onset from young people and adolescents, the prevalence of contraceptive methods and explore determinants of pregnancy. A retrospective cohort (2014-2018) was followed by a health insurer of the subsidized regime in Colombia. The study sample consisted of 35,214 young people aged 10-24 years living in 21 municipalities of the Colombian Caribbean region. For the social determinants of pregnancy, a multivariate probit model was estimated using as explanatory variables, housing area, education, family functionality and sexual behavior. 10.3% of women and 14.1% of men had their first sexual encounter before age 14 and 43.5% of women and 37.4% of men began their sex life after age 17. From the young people who claimed to have started their sexual life, 70.9% of the men made use of the condom as a contraceptive method, while the women divided on average 27.2% for the pills and / or injections followed by 16 , 1% in the use of the subdermal implant. As determinants of pregnancy in young people under 20, it was found that variables such as suspending school years [Yes (β = 0.6, p = 0.006)], being planned with hormonal method [Yes (β = 0.5, p = 0.000)] or start sexual life [Between 10 to 14 years (β = 0.14, p = 0.000)], increase the likelihood of young women becoming pregnant at some time in their life. These results also showed that the schooling of the young [University (β = -0.4, p = 0.038)] and always use condoms in sexual intercourse [Yes (β = -0.5, p = 0.042)] help prevent the pregnancy event from occurring. The age of sexual onset establishes a basis on which decision makers should intervene for promote a safe sex life, from use of anticonceptives in young people and thus avoiding unplanned pregnancy

Perception, prevalence and factors associated to school bullying in young people from a population affiliated in a colombian health subsidized insurance company in 2018.

Describe the perception from young people about bullying, the prevalence of this event and explore the factors associated with being a victim. A retrospective cohort (2014-2018) was followed by a health insurer company of the subsidized regime in Colombia. The study sample consisted of 35,214 young people aged 10-24 years living in 21 municipalities of the Colombian Caribbean region. Means and standard deviation were expressed for continuous variables and frequencies for categorical variables. For the associated factors, a logistic model was estimated using as explanatory variables, sex, housing area, age range, family functionality, disability of the young person, disability of a family member and variables of psychological perception. 63.6% of young people answered that they have knowledge about what school bullying is, noting that as the schooling of the young person increases, the higher the proportion of positive response. The physical or verbal school bullying rate was 94 young people per 1,000. It was found that factors such as the youth feeling useless and guilty (OR = 3.14, p = 0.000), attending psychological counseling (OR = 1.78, p = 0.000), repeating years (OR = 1.49, p = 0.000), that the young person has a disability (OR = 1.33, p = 0.004), or a family member has a disability (OR = 1.27, p = 0.000), is associated with being a victim of bullying. Likewise, it was found that belonging to a highly functional family environment (OR = 0.57, p = 0.000) is a protective factor. School bullying is an event that needs attention and requires supervision of all those around young people, in order to avoid changes in behavior or suicide. Therefore, health systems must offer comprehensive care to prevent mental health risks related to bullying given their relationship with the presence of disability of the young person or a relativ