Nitrate-nitrite levels in commercially processed and home processed beets and spinach

Nitrate and nitrite content of commercially processed and home processed beets and spinach samples were analyzed using specific ion electrode and colorimetric methods. The home processed beets were found to be significantly higher in nitrate content than the commercially processed beets. This difference was attributed to differences in processing methods. Pickled and Harvard beets contained significantly lower amounts of nitrate/nitrite on a dry weight basis than the other types of processed beets, evidently due to the diluting effect of added sucrose. Home frozen spinach showed a trend toward lower nitrate content than commercially frozen spinach, although the difference was not significant. Length of storage of home processed beets and spinach did not appear to affect nitrate or nitrite content.Published as Nebraska Agricultural Research Division Journal Series 7495. Supported by funds from teh Nebraska Agricultural Research Division Project No. 91-031 and U.S.D.A. C.S.R.S. Project No. W-143.     

Movement of sonically tagged bluespine unicornfish,Naso unicornis,in relation to marine reserve boundaries in Rodrigues,western Indian Ocean

• 1. The lagoon fishery of Rodrigues has considerable socio‐economic importance; however, catches have declined by 50% in recent years. The bluespine unicornfish, Naso unicornis (Forsskål 1775) is an important component of the fishery.
• 2. To begin to assess whether marine reserves might benefit this species, sonic telemetry was used to track individual fish in one of Rodrigues' four marine reserves. Seven unicornfish were caught in the Grand Bassin reserve and tagged with abdominally implanted acoustic tags.
• 3. Over a period of 57 days their locations were determined up to 21 times using a hand held hydrophone and receiver. Individual minimum convex polygon (MCP) home ranges varied from ～10 000 m² to ～274 000 m² and were not correlated with fish size. Kernel estimates of core areas (50% utilization distribution) varied from ～5000 m² to ～175 000 m². All seven fish stayed within the marine reserve and the largest home range occupied less than ～2% of the area of the marine reserve.
• 4. Fish remained on the outside edge of the lagoon on the shallow reef slope and among coral patches. These findings suggest that bluespined unicornfish biomass and numbers should increase if the Grand Bassin marine reserve is closed to fishing. Long‐term monitoring will, however, be required to demonstrate this outcome. Copyright © 2010 John Wiley & Sons, Ltd.

     

Behavior of pike (Esox lucius L.) >50 cm in a turbid reservoir and in a clearwater lake

Abstract – Pike from two different waters were radio-tagged and released immediately upon recovery. In Bygholm Reservoir 19 pike (52–72 cm) and in Lake Ring 15 pike (53–77 cm) were tagged in late February and early March. Bygholm (58 ha) is a shallow eutrophic reservoir and Ring (22 ha) is a natural mesotrophic lake. The positions of the tagged fish were recorded through weekly trackings and a number of 3-day tracking sessions during a 9-month period. Diel activity patterns, home range sizes and habitat utilization by pike was compared between the reservoir and the lake. The pike in the lake occupied larger areas than the pike in the reservoir and were less associated with vegetation. In both waters pike were found more often in, or close to, vegetation during summer than during winter. No difference in average movement of pike was seen between the waters, but pike were more stationary in the reservoir than in the lake. There was no difference in the level of movement between different times of the day, but the diel rhythm of the pike changed significantly over the year. There were large behavioral differences between pike in the lake and in the reservoir and even more variation between individuals within each population.     

提高黄瓜网室杂交制种产量的技术措施

在黄瓜网室杂交制种生产中，应多施有机肥，以改善土壤结构，并尽可能地选择黄壤土或砂壤土等适宜土壤栽培；同时掌握好授粉温度（最适定植密度为 5 000∽ 6 000株 /666.7 m2）；与此同时，了解黄瓜生长习性，改进栽培和采种技术，规范生产；并随时注意病虫害的防治及避免自然灾害袭击，全面提高制种产量。     

袋装青贮技术在我国的推广与应用

国内外应用的青贮方式主要有塔式、窖式、青贮堆、袋式灌装及草捆青贮等。其中．袋装青贮由于方法简单、贮存地点灵活、饲喂方便，在国外得到广泛应用。为此，介绍了袋装青贮技术的特点和优势，分析了该技术在我国推广应用的前景和制约因素，并对袋式灌装青贮技术国产化提出了建议。     

A Game Analysis of Credit System and Mortgage Backed Securitization

This essay illustrates the importance of credit to the supply of asset pool and the operation of MBS from the accept and the basic operation process of MBS. According to our country's conditions, this essay states from two sides. Through the game of housing consumer and commercial, for one thing, housing consumer desides applying for loan or not,and commercial bank desides granting loan or not; for another ,housing consumer selects prepaying loan,paying loan on time or branking contract,and commercial bank selects lawsuiting or not. Through the game analysis of two sides , it discusses relations between the loan of bank and the development of credit system,and give us some suggestions in order to the development of MBS.     

Negotiating ‘home’ and ‘national identity’: Chinese‐Malaysian transmigrants in Singapore

Abstract: Part of the globalisation phenomenon involves an increasing number of elite transmigrants traversing national boundaries in response to the global demand for skilled labour while maintaining multifaceted social ties astride political, geographic and cultural borders, linking home and host countries together. As transmigrants ‘live’ in several communities simultaneously, their identities, behaviour and values are often not limited by location. Thus, notions of ‘home’ and ‘national identity’ are also being reviewed given the discrepancies between these concepts and locality. In this context, this paper explores questions of ‘home’ and ‘national identity’ among skilled Chinese‐Malaysians working and residing in Singapore, portraying them as active participants of two (or more) countries. It focuses on their strategies and struggles in negotiating ideologies of ‘home’ and ‘national identities’ across borders in a setting of two neighbouring countries umbilically linked in a volatile political relationship. It further examines their degree of concern in the political affairs of both countries. Between ‘home’ and ‘host’, Chinese‐Malaysians redefine their practices of home(‐making) in relation to their national identity, drawing on the resources and resilience of familial ties, nostalgic memories and other practical lifecourse needs.     

The banana (Musa spp.) — Coffee robusta: traditional agroforestry system of Uganda

Banana (Musa spp.) — with Coffee robusta a traditional agroforestry system in Uganda is a purely mixed cropping system managed on a sustained production basis. The basic primary production is banana as a main food crop and Coffee robusta as the main cash crop. The variety of trees deliberately retained, managed and planted, animals and crops in the system are managed by the farmers to maximize production by supplying timber, fruits, fuelwood, fodder, food, medicinal and other miscellaneous uses.     

秦巷村残疾人之家环境改造设计

本着因地制宜、尊重自然和保留场所精神的原则,最大化保留原场地大树、池塘和老建筑,利用老旧房屋改造提升残疾人之家活动室,对地块内的池塘梳理,大棚升级改造,布置动静区域,通过合理分区和精心规划,为残疾人提供了一处集园艺活动、康养锻炼、学习培训、桔园采摘加工为一体的花园式残疾人之家.同时运用保健植物和芳香植物知识,从五感方面...     

农村太阳能自动控温采暖装置

为减少北方农村地区采暖散煤带来的环境污染及天然气供应不足问题,调研和分析了不同的清洁采暖模式。设计出了以太阳能热水器为热源的自动控温采暖系统。该系统由太阳能热水器、管道、阀门、疏水器、管道泵、管道电磁加热器、温度传感器感应开关、温度传感器等组,用于农村居民采暖。使用结果表明:农村150余户应用后能达到既满足采暖需要,又节约采暖费用的目的。