eChapters

Abstract

The Saanich (Coast Salish) are an Indigenous people of southern Vancouver Island on the southwest coast of Canada who for many centuries have relied heavily on anadromous Pacific salmon (Oncorhynchus spp.) as a major food source. Over time, Saanich fishers have become experts on many aspects of these salmon, including knowledge of the different species, their life cycles, feeding ecology, migration routes, and population dynamics. Much of this knowledge is centered at Saanich Inlet and Goldstream River, a major salmon spawning stream flowing into this inlet. Some Saanich and other Coast Salish people still fish for salmon at Goldstream using traditional gaff hooks and spears, but they have also adopted more modern gear in recent times. Pacific coho (O. kisutch) and chum (O. keta) salmon stocks in particular have fluctuated over the decades, evidently due to impacts of commercial fishing, pollution from oil leakage and domestic sewage in Saanich Inlet.

The use of salt (Sodium Chloride) in food products is an important method of preservation. It not only imparts taste to the products but also helps in checking spoilage of fruit products. Salt is added to pickles, sauces, chutneys, ketchup, and many other products. Food Safety & Standards Regulation has specified the maximum limit of salt in different products. Therefore, the estimation of salt content in food products is considered as an important attribute in food quality control.
Direct Titration Method
Direct titration (Mohr’s) method is used for the determination of salt content in food products as a routine quality control. In this method, the sample is titrated against a standard solution of silver nitrate for the estimation of salt.
Reagents
0.1 N NaOH, Phenolphthalein 1% indicator solution
0.1N Silver nitrate (AgNO3)
5% Potassium Chromate

4.1. INTRODUCTION

The number of individuals to be included in a research study (the sample size of the study), is an important consideration in the design of many studies. This chapter will provide information on basic factors that determine an appropriate sample size and provides methods for its calculation in some simple, yet common, cases. Sample size is closely tied to statistical power, which is the ability of a study to enable detection of a statistically significant difference. A trade-off exists between a feasible sample size and adequate statistical power. Strategies for reducing the necessary sample size while maintaining a reasonable power is also important.

How many individuals will I need to study? This question is commonly asked by the clinical, ecological and behavioural investigator and exposes one of many issues that are best settled before actually carrying out a study. Consultation with a statistician is worthwhile in addressing many issues of study design, but a statistician is not always readily available.

The amount of information that can be gained from a sample depends upon its absolute size and not upon its size as a proportion of the population size, Just as to decide if the wine is good we need only a sip, irrespective of the bottle size, similarly we do not need to know the exact size of the parent population, provided complete homogeneity exists, But in reality, and more so in biological sciences, such homogeneity is rarely seen. Therefore, appropriate sample size becomes pertinent for drawing valid conclusions and is among the most difficult decisions to be taken for a study.

The size of the sample would depend upon (i) the permissible error in assessment of inference i.e. accuracy and (ii) sampling error. Sampling error measures the amount of variability between sample results; the lesser it is the better. The main determinant of the sample size, therefore, is how accurate results do we used. This in turn, depends on the purpose and type of study.

3.1. CENSUS AND SAMPLE SURVEYS

Census or Complete Enumeration

A survey, which includes every element of the population, is known as Census or the Method of Complete Enumeration. If certain agencies are interested in studying the total population of a country, they have to obtain information from all the households in rural and urban area.

The essential feature of this method is that this covers every individual unit in the entire population. We cannot select some and leave out others. We may be familiar with the Census of a country, which is carried out after a particular period like every ten years. A housetohouse enquiry is carried out, covering all households. Human demographic data on birth and death rates, literacy, workforce, life expectancy, size and composition of population, etc. are collected and published by a government agency.

Sampling is the process of drawing a part of population supposed to be the representative of that population.

Types: Sampling process can be either random or non-random. Most frequently we use random sampling method in our studies. But sometimes the purpose of the study demands for non-random sampling in one or other phase of sampling (Example: When we want to study the impact of life skills development programme on the disabled female beneficiaries)

Sampoorna Grameen Rozgar Yojana (SGRY)

This scheme has been merged with NREGS since February 2006 so only most important points are given below.

1. The Sampoorna Grameen Rozgar Yojana (SGRY) was launched on 25 September, 2001 by merging the on-going schemes of EAS (Employment Assurance Scheme) and the JGSY (Jawahar Gram Samridhi Yojna)
2. Objective was to providing additional wage employment and food security, alongside creation of durable community assets in rural areas.
3. The annual outlay was Rs.10, 000 crore which included 50 lakh tones on food grains.
4. The cash component shared between the Centre and the States in the ratio of 75:25.

16.1 Introduction

Successful egg production is highly dependent on sanitation and decontamination, and producing clean eggs is the most major element of egg sanitation. Egg contents might become contaminated either vertically or horizontally. The ideal option for small farms can be to keep hatching eggs in a hygienic area and incubate them as soon as possible without sanitation but it’s not the same kind in case for commercial producers need to get a poultry veterinarian guidance on the proper egg handling and sanitation program depending on their needs. There are several preharvest techniques used to minimize egg contamination, including immunization, feed additives, home sanitation, bacteriophages, and biosecurity.

ABSTRACT

Village Resource Centre (VRC) provides information services to the rural population to empower them to face day to day challenges. In this line, the Department of Space, ISRO & RRSSC is bringing its space technology to common man by setting up of Village Resource Centres, with a view to integrate the capabilities of communication and remote sensing satellites to address the changing and critical needs of rural communities. VRC is totally interactive VSAT based network for providing space enabled information related to land records, natural resources, drinking water wells, ground water recharge, soil types, alternate cropping pattern, waste lands, etc. VRCs also provide  variety of services in its tele-education and tele-medicine programmes, online decision support, weather forecasting, water management, interactive farmers advisory services (video conferencing) etc.

Introduction

Satellites are specifically made for telecommunication purpose. They are used for mobile applications such as communication to ships, vehicles, planes, hand-held terminals and for TV and radio broadcasting. They are responsible for providing these services to an assigned region (area) on the earth. The power and bandwidth of these satellites depend upon the preferred size of the footprint, complexity of the traffic control protocol schemes and the cost of ground stations. A satellite works most efficiently when the transmissions are focused with a desired area. When the area is focused, then the emissions don’t go outside that designated area and thus minimizing the interference to the other systems. This leads more efficient spectrum usage. Satellite’s antenna patterns play an important role and must be designed to best cover the designated geographical area (which is generally irregular in shape). Satellites should be designed by keeping in mind its usability for short and long term effects throughout its life time. The earth station should be in a position to control the satellite if it drifts from its orbit it is subjected to any kind of drag from the external forces.

Introduction

Food is the most important requirement of every section of the society. But, mere availability of food sometimes is not enough and it does not mean that everybody is having access to a fair share of it or that every one has an adequate diet (Oshaug et al., 1994). Therefore, affordable food prices and adequate purchasing power with the people are equally important.

The need of food security was felt due to the gaps in food production and availability of sufficient food from domestic resources. Large proportion of the underfed population starves not because of general food shortage but due to the insufficient access to food supplies or insufficient income to purchase food.FAO (1999) estimated that there were 20.4 million undernourished people in India only).

Importance of maintaining food security over the world has been abundantly recognized since long. However, during 1974, FAO was called by the World Food Conference to establish a Committee on World Food Security so as to keep the world food situation under constant review and to suggest the strategies for rectifying the problems in problematic areas. Later, an International Undertaking on World Food Security was set up wherein member nations committed themselves to maintain food stocks for ensuring uninterrupted supply of foodgrains and to cope up with the problems of shortage in case of crop failure due to the natural calamities etc. Since then, the Committee on World Food Security monitors the implementation of the undertaking.

The development discourse on women nationally and internationally as discussed above, moved from Women in Development (WID) to Gender and Development (GAD) and Women’s Empowerment. This was reflected in the Government Plans and Policy Documents in their journey through more than six decades. Since independence many schemes were launched for the emancipation of women in the country.

In the Fifth Five Year Plan (1974-79), the development approach replaced the social welfare approach. This recognized women’s productive role and her contribution. The Sixth Five Year Plan (1980-85), is a landmark in the history of women’s development by emphasising on health, education and employment. In the Seventh Five Year Plan (1985-90) priority was given for programmes to improve the status of women. A major development for the empowerment of women was the 73rd constitutional amendment to the Panchayat Raj Act in 1993. This amendment specified that one-third of the posts of Sarpanch and Chairman of the block level assemblies (Samiti) and the district assembly (Zila Parishad) will be women. Today, mobilization of women’s groups particularly in rural areas has become a major strategy in bringing them into the public domain, developing leadership and increasing their access to resources. Indian women have higher visibility in the national and state policies.

8.1. INTRODUCTION

The existence of Science could be in danger, if scientists did not record experiment performed, data collected and resuit obtained. Scientific writing doesn't mean to only keep records of progress and information, but to actually publish the results of studies in scientific journals. While keeping records is quite easy to do, publishing scientific papers can be really difficult, and especially for young researchers who are just starting to discover the world of scientific publications. A scientific writing is a method of communication, an attempt to tell others about some specific data that you have gathered and what you think those data mean in the context of your research. The rules of writing a scientific paper are rigid and are différent Uorr\ those that apply when we write an English theme. Scientific paper must be written clearly and concisely so that readers with backgrounds similar to yours can understand easily what you have done and how you have done it. The ultimate aim of most scientists is to publish their research findings in professional scientific reports. This includes peer-reviewed journal articles, which report original findings and contribute to the global pool of scientific knowledge. Scientists spend their time writing proposais, planning research, undertaking experiments, analysing data, tracing research, and reading related articles. Published reports and journal articles provide evidence of this dedication. Therefore, a scientific report is not simply some extra work that is done at the end of a project; it is an important historical document that provides evidence of work to the wider scientific community.

1. Introduction

Fruits and vegetables represent highly perishable items of agriculture, mainly because of their high water content in fresh form. Their production, yield and management under agriculture is dealt essentially under horticulture. They abound in species and varieties in different geographic regions of the world, influenced by the agro-climatic conditions. Some are endemic and confined to certain geographic regions only. Accordingly, they may be tropical, sub-tropical or temperate, depending on their requirements of temperature for growth and yield.

Introduction
Cocoa, Theobroma cacao L. popularly known as ‘Food of Gods’, the original source of chocolate, is indigenous to tropical humid forests on the lower eastern equatorial slopes of the Andes in South America. Cocoa spread to all over the tropical regions of the world from 18^th century onwards and is now grown in 58 countries covering 6.9 million ha worldwide, producing 4 million tons of cocoa. Cocoa is an important agricultural commodity and the key raw material in chocolate manufacture. Unlike large, industrialized crops, 80 to 90% of cocoa comes from small, family-run farms, with approximately five to six million cocoa farmers worldwide. Total production has increased by 13% from 4.3 million metric tons in 2008 to 4.8 million metric tons in 2012. This represents an average year-over-year production increase of 3.1%. This rate of increase may slow in the coming years, as cocoa trees are sensitive to changing weather patterns. Periods of drought and of excessive rain or wind can negatively impact the yield, and will continue to fluctuate as climate change intensifies. Most of the world’s cocoa is produced in West Africa (70%) followed by Asia and Oceania (15.6%) and Latin America (14.1%). World leaders in cocoa bean production are Ivory Coast, Ghana, Indonesia, Nigeria, Cameroon, Brazil, Ecuador, The Dominican Republic, and Malaysia, supplying 90% of the world production.

Introduction

Coconut is a versatile crop with several uses to mankind. Apart from the main product, the by-products obtained from the coconut crop have many alternative uses, thus, adding to the total value of the crop (Popenoe, 1969). A tremendous scope exists for use of coconut in a variety of non-food products. The development of cottage industries to produce such products is recommended to increase income of coconut growers. For historical reasons, cultivation of coconut and value addition of non-food products from coconut have taken deep roots in the state of Kerala. The rapid expansion of coconut cultivation in non-traditional areas increased the production of coconut and the industry has also developed gradually in the states of Tamil Nadu, Karnataka, Andhra Pradesh and Orissa. Among the non-food products of coconut, charcoal, activated carbon, and shell powder and coir or coconut fibre assume commercial importance. Other parts of the palm especially coconut wood and leaves are recently gaining attention.

Introduction

Groundnut (Arachis hypogaea L.) commonly called as Poor man’s cashew, is the 6^th most important oil seed crop in the world. It contains 48-50% oil, 26-28% protein and 11-27% carbohydrates. Groundnut is grown on 26.4 million hectare worldwide, with a total production of 37.1 million metric tons and an average productivity of 1.4 metric tons/ha. Developing countries constitute 97% of the global area and 94% of the global production of this crop (FAO, 2011). The production of groundnut is concentrated in Asia and Africa, where the crop is grown mostly by smallholder farmers under rain-fed conditions with limited inputs. Groundnuts (peanuts) are popularly used as seed oil in India. Since, they are obtained from the ground, they are called as groundnuts and also known as ‘Mungfali’ in Hindi, ‘Palleelu or Veru sanaga’ in Telugu, ‘Kadalai’ in Tamil, ‘Nilakkadala’ in Malayalam, ‘Kadale kaayi’ in Kannada, ‘Singdana’ in Gujarati and ‘Shengdaane’ in Marathi. Groundnuts are easily available round the year and almost everywhere in India. Groundnuts are also taken as snacks in many households especially in India. In reality, groundnuts are actually legumes. Since, they have all the properties of nuts like almonds, cashew nuts, etc., these are also included in the family of nuts.

Groundnut is the major oil seed of India. It accounts for 25% of total oil produced in India. Annual production of groundnut is around 9690 thousand tones. As the crop is grown in rainfed conditions, production and productivity are highly vulnerable to rainfall and exhibit huge fluctuation between the years. In India, groundnuts are produced both during Kharif (75%) and Rabi seasons (25%). Major production catchments of groundnut are located in Gujarat holding a share of 50.77% of total groundnut production, Andhra Pradesh holding a second place (12.69%) followed by Tamil Nadu (9.91%). Following are the top groundnut producing states of India (Table 1).

Introduction

Pineapple (Ananas comosus L.) is cultivated commercially in the tropics and parts of the subtropics of the world. It is greatly appreciated by consumers due to its pleasant sweet taste and flavour in addition to its nutritional and health promoting properties. Varieties differ greatly in both taste and shape. Each variety also has local types. Kew/Giant Kew variety is a leading commercial variety. Fruits are big sized (1.5-2.0 kg), oblong and tapering slightly towards the crown. Fruits with broad and shallow eyes become yellow when fully ripe. Flesh is light yellow, almost fibreless and very juicy. Queen fruits are rich yellow in colour, weighing 0.9-1.3 kg each. Flesh is deep golden yellow, less juicy than Kew, crisp textured, sweet with pleasant aroma and flavour. Baby-pineapples are mostly less than 500 g (Singh, 2016).

Pineapple fruits are consumed fresh. However, because of the unique structure of the fruit and the presence of very active protease, fruit does not find extensive use as a table fruit and hence is mostly processed into a number of products. Many types of value added products are obtained from pineapples which have got good domestic and international market. Proper processing and value addition will not only help to provide wide varieties of products to the market, but also help to reduce the losses of pineapple and will provide additional income to farmers.

There’s no one-size-fits-all approach to writing a documentary script, but there are best practices that can streamline the process. Here are some key tips for crafting a compelling documentary script:

Choose a Story You’re Passionate About

Start by asking yourself why you want to create this documentary. What message do you want to convey? Why are you the best person to tell this story? These are questions that producers and executive producers will expect you to answer in a pitch, but it’s crucial to first address them for yourself. The answers will guide you to a story that you’re genuinely passionate about, making the long and challenging process of documentary filmmaking worthwhile. Once you have clarity on these questions, you can dive into the task of researching your material, identifying the story, and crafting the script.

Introduction Sea buckthorn berry belongs to Elaeagnaceae having 6 species (Hippophae rhamnoides, Hippophae neurocarpa, Hippophae salicifolia, Hippophae gonicarpa, Hippophae tibetiana and Hippophae litangenis) and 12 subspecies grown all over the world. India, is having its plantations in chilly and barren conditions of Ladakh, Himachal Pradesh, Uttarakhand, Sikkim, and Arunachal Pradesh. Berries and fruits are believed to have such bio-active compounds like antioxidants in them that it has constructive consequences on health of human beings. Moreover, they are been proven in lessening the cardiovascular diseases, age related issues,cancer etc. Berries of Sea buckthorn is an abundant provenance of these bio-active compounds. One of the major lipophilic compounds is carotenoid pigments. And the concentration of the same has difference depending upon origin of plant, harvesting period and weather conditions. Nutritionally, the fruits have a substantial amount of carbohydrate, protein, organic acids, amino acids, and vitamins. Moreover, it also contains bioactive compounds like carotenoids, dietary minerals, antioxidants, flavonoids, vitamin C, minerals, monosaccharide, organic acids, tannins, etc. Sea buckthorn plant parts are becoming one of the useful and promising nutraceuticals for the food industry and all over the world.

Introduction
 
Whilst food has long been used to improve health, our knowledge of the relationship between food components and health is now being used to improve food. Although most foods can be considered “functional”, in the context of this review, the term is reserved for foods and food components that have been demonstrated to provide specific health benefits beyond basic nutrition. Widespread interest in select foods that might promote health has resulted in the use of the term “functional foods”. Seaweeds are known for their richness in polysaccharides, minerals and certain vitamins [1], but they also contain bioactive substances like polysaccharides, proteins, lipids and polyphenols, with antibacterial, antiviral and antifungal, as well as many such other properties [2]. This gives seaweed great potential as a supplement in functional food or for the extraction of compounds. Physiologically active substances in marine algae are classified into two types based on the difference in the mechanisms viz. (i) non-absorbed high-molecular materials like dietary fibres, and (ii) low molecular materials, which are absorbed and which affect the maintenance of human homeostasis directly. Seaweeds are among the first marine organisms chemically analyzed, with more than 3,600 articles published describing 3,300 secondary metabolites from marine plants and algae, and they still remain an almost endless source of new bioactive compounds [3].