ABSTRACT
Abstract: In the leaf litter, ants have various nesting resources available, such as live or dead trunks, twigs, leaves, fruits and seeds. On the twigs, there are adults and immature individuals, but also the queen and winged. The production of wings requires time and energy from the colony. The objective of this study was to investigate the presence of winged in ant colonies in twigs on the leaf litter. Our prediction is that the richness and abundance of winged in twigs are the greatest in rainy months. We collected all twigs with ants in 552 plots with 16 m2, totaling 8,832 m2 of leaf litter, in areas located in the Brazilian Atlantic Domain. We compared the species richness and the number of colonies with and without winged, as well as the number of winged over a year. In total, we collected 1,521 twigs with colonies belonging to 92 species of ants. The rate of twigs with winged was low, about 12%. In colonies with winged, the total number of twigs, species and amount of winged does not differ between the months considered dry and rainy. The majority of winged species are leaf litter dwellers, such as Linepithema neotropicum, recorded with the highest amount of winged irrespective of the period. Arboreal species colonized 15% of the twigs and, in 1/3 of these species, winged were recorded as part of the composition of the colony. Although winged represent a small percentage of the colony in twigs, our results indicate that this feature is important for the life cycle of 44% of the species that occupy twigs, considering that winged are fundamental for the dispersion of the colony.
Resumo: Na serapilheira as formigas têm disponíveis diversos recursos de nidificação, como troncos e galhos vivos ou mortos, folhas, frutos e sementes. Nos galhos são encontrados indivíduos adultos e imaturos, mas também rainha e alados. A produção de alados exige tempo e energia por parte da colônia. O objetivo deste estudo foi investigar a presença de alados em colônias de formigas em galhos na serapilheira. Nossa hipótese é que a riqueza e abundância de alados em galhos são maiores nos meses chuvosos. Nós coletamos todos os galhos com formigas em 552 parcelas de 16 m2, totalizando 8.832 m2 de serapilheira em áreas localizadas no Domínio Atlântico brasileiro. Comparamos a riqueza de espécies e o número de galhos com e sem alados, bem como o número de alados ao longo de um ano. No total coletamos 1.521 galhos com colônias, pertencentes a 92 espécies de formigas; a taxa de galhos com alados foi baixa, cerca de 12%. Nas colônias com alados, o número total de galhos, espécies e quantidade de alados não diferem entre os meses secos ou chuvosos. A maioria das espécies com alados é habitante da serapilheira, como Linepithema neotropicum, registrada com a maior quantidade de alados, independente do período. Espécies arborícolas colonizaram 15% dos galhos e, em 1/3 dessas espécies, alados foram registrados fazendo parte da composição da colônia. Apesar de os alados representarem uma pequena porcentagem da colônia em galhos, nossos resultados indicam que este recurso é importante para o ciclo de vida de 50% das espécies que os ocupam, considerando que alados são fundamentais para a dispersão da colônia.
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Objective To understand the prevalence of hypertension and selenium intake of the residents in rural areas of Jilin province,and to discuss the relationship between selenium intake and the prevalence of hypertension, and to provide reference for prevention and therapy of hypertension.Methods A total of 1 380 inhabitants in rural areas of Jilin province were selected by way of cluster sampling to conduct dietary investigation,physical and blood examination.The selenium intake was categorized into three groups according to tritiles after adjusted by energy, and the relative risk for incidence of hypertension in each group was estimate by using the Logistic regression model with the first group as the reference.Results The prevalence of hypertension in the study area was 37.4%.The average for selenium intake was 35.908μg·d-1 and was lower than the standard level of selenium recommended by RNI.After adjustment for other risk factors,the relative risk for incidence of hypertension for different selenium intakes in the men was 1.00,0.471(95%CI 0.290-0.765),and 0.596(95%CI 0.373-0.951),the P values were 0.002 and 0.030. There was no significant relationship between selenium intake and the incidence of hypertension in the women,and there was also no significant relationship between Han people and Korean people in China.Conclusion The selenium intake is the influencing factor affecting the incidence of hypertension of the male rural residents in Jilin province,which reminds that the increasing selenium intake is helpful for the prevention of male hypertension.
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Objetivo La utilización de antibióticos ha sido objeto de abuso y se relaciona con el desarrollo de grave resistencia bacteriana.Analizar la dispensación de antibióticos de uso sistémico a nivel ambulatorio en una población colombiana entre enero de 2005 y diciembre de 2006 y la valoración de su costo económico. Métodos Estudio observacional descriptivo sobre utilización de antibióticos a partir de prescripciones dispensadas a la totalidad de usuarios que hayan recibido algún antibiótico en 10 ciudades colombianas. Se determinó dosis definida por 1 000 habitantes y día y el costo por 1 000 habitantes y día. Se analizaron las asociaciones de antibióticos empleadas comúnmente. Resultados La dosis diaria definida fue de 1,58 por 1 000 habitantes y día. Los antibióticos más dispensados fueron las penicilinas (amoxicilina dicloxacilina), seguidos de cefalosporinas de primera generación y sulfonamidas. El uso de antibióticos en presentación inyectable fue del 10,4 por ciento y 9,3 por ciento para los años 2005 y 2006 respectivamente. En 11,0 por ciento de los casos se empleó una asociación de antibióticos. El costo total de dispensación de antibióticos fue de $ 4 356 294 644 pesos (US $ 1 708 350) y el coste por mil habitantes y día de $ 3 114 pesos (US $ 1,13) en 2005 y de $ 2 564 pesos (US $ 1,00) en 2006. Discusión Las dosis diarias definidas por mil habitantes y día y el costo de los antibióticos por mil habitantes y día son menores a los reportados en otros países.
Objectives Analysing how systemic antibiotic agents were dispensed to outpatients in a Colombian population between January 2005 and December 2006 and assessing their economic cost as antibiotic use and abuse have been related to serious bacterial resistance. Methods This was a descriptive observational study of antibiotic drug use; a database was compiled from medication usage records maintained by dispensing pharmacies in 10 Colombian cities regarding the total of users who had received some type of antibiotic. The defined daily dose (DDD) and cost per 1,000 inhabitants/day were assessed. The commonly used antibiotic associations were analysed. Results DDD was 1.58 per 1,000 inhabitants per day. The antibiotics most frequently prescribed were penicillin (amoxiciline; dicloxaciline), followed by first-generation cephalosporines and sulphonamides. Injectable antibiotic use was 10.4 percent in 2005 and 9.3 percent in 2006; an association of anti-bacterial agents was used for 11 percent of the patients. Total antibiotic dispensation cost in 2005 was US$ 1,708,350 and cost per 1,000 inhabitants per day was US$ 1.13 in 2005 and US$ 1 in 2006. Conclusions DDD per 1,000 inhabitants per day and cost per inhabitant per day was low compared to other countries.
Subject(s)
Humans , Anti-Bacterial Agents/therapeutic use , Outpatients , Anti-Bacterial Agents/administration & dosage , Anti-Bacterial Agents/economics , Colombia , Costs and Cost Analysis , Drug Prescriptions/economics , Drug Prescriptions/statistics & numerical dataABSTRACT
Objective:To discuss the influence of social class,income and subjective economic well-being on subjective well-being of rural inhabitants.Methods:We used Satisfaction With Life Scale to measure rural inhabitants 'subjective well-being(SWB)of 1308 rural inhabitants.Results:(1)Difference in social class resulted in their SWB(F=8.629,P
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Objective To analyze the schistosomiasis epidemic of 4 national pilots in Dongting Lake regions during 5 years period, and provide references for control strategy and policy making. Methods Four longitudinal monitoring pilots were set up in Dongting Lake regions from 2000 to 2004, and the field work in pilots was carried out based on “National Scheme on Schistosomiasis Epidemic Monitoring”. Results During the monitoring period, the infection rate of Schistosoma japonicum kept at 4% in Dongjia, 5% in Xinshang and over 12% in Quanxing, but in Changjiang, the rate was 8.92% in the first year of monitoring period, and stayed at 4% in the next 4 years. For all pilots, 20-49 age group had the highest infection rate, with the rate in male being higher than that in female and centering on the fishermen, farmers and students in occupation. There was the occurrence of acute and new advanced cases. The infection rate in domestic animals was fluctuated at 20%. There was extensive distribution of infected snails on marshlands outside embankments. Conclusion Schistosomiasis is seriously endemic in Dongting Lake regions, and intensive control measures are necessary.
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This paper collected and analysed the materials concernig constitution and the nutritional level of the diets of inhabitants in Dandong city from 1959 to 1985. The results showed 1) Nutrients level of the diets increased with years and became rational. Intakes of energy and protein were over 110% and 97.1% of the RDA:the protein provided 10.5%, fat 30% and carbohydrate 58% of total energy intake; and 13.2% of protein originated from animal sources. 2) The weight of new-borns and children was less than that in developed countries. 3) The weight of children at age 8 and 14 increased 0.11 (boy), 0.06 (girl) and 0.33, 0.2lkg respectively. The height of the boys increased 0.37, 0.51 cm and the girls 0.28, 0.30 cm respectively. The increased rate is quicker. 4) At the age 0-7, the incidence of the des-eases caused by malnutrition declined yearly but incidence of rickets dropped down less. This may concern less sunning and less VD of the diets.