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Halophytes are salt-resistant or salt-tolerant plants which thrive and complete their life cycles in terrestrial or aquatic habitats having high salt concentrations. Aronson (1989) compiled a partial list of halophytes containing 1560 species in 550 genera and 117 families. Menzel and Lieth (1999) listed as many as 2600 plants under salt tolerant flora. Although halophytes represent only 2% of terrestrial plant species, they are present in about half the higher plant families and represent a wide diversity of plant forms. Because of their diversity, halophytes are regarded as a rich source of potential new crops. Halophytes are tested as vegetables, fodder and oilseed crops under field trials. The oilseed halophyte, Salicornia bigelovii, yields 2 tones/ha of seed containing 28% oil and 31% protein, similar to soybean yield and seed quality.

Introduction

India is one of the major producers and exporters of honey. Diversity of bee flora and varied agro-climatic conditions in the country offers enormous potential for the development and growth of apiculture. Honey is a supersaturated sugary material produced mainly by honey bees from the sweet substances of plants (floral or extra-floral nectaries) or insect. Honey bee forager (field bee/worker honey bee) collects the nectar and converts the same into honey by a process of regurgitation and evaporation and stores in the honey comb. The sweetness of the honey is largely by monosaccharide viz., fructose and glucose. Honey is either monofloral or polyfloral as it is collected by the bees. The physical properties of the harvested honey depend upon the source from it is derived, water content, temperature, proportion of the simple sugars present and the method of processing. At low temperature (below 17°C), honey gets crystallized. Honey is also hygroscopic, capable of absorbing water from the atmosphere. India produces approx. 65,000 mt of honey per year (Kejariwal, 2015).

Water and nutrients are the most important, and readily manageable, variables for producing a profitable crop. Efficient management of water and essential plant nutrients is imperative for achieving sustainable agriculture and maintaining necessary increase in food production to feed the burgeoning population while minimizing economic losses and environmental impacts. Technology here can play a catalytic role in striking a common ground between these environmental and economic goals. Recent advances in sensor technologies indicate that efficient nutrient management in crop fields can be attained through the application of Precision Agriculture (PA)-based geo-spatial technologies such as global positioning system, geographical information system, remote sensing,

The major impact of the two important components of the Karnataka Watershed Development Programme (KWDP) viz farming system intensification and watershed treatment will be on land-based enterprises and land owners, although to a certain extent landless families would also benefit from the increased labour demand through intensification of agriculture. To ensure growth with equity among all the stakeholders in the project, it is imperative to have practical, market-driven, complementary and supplementary income generating activities for weaker sections of the community, including SCs, STs, women, landless persons, families below the poverty line and other vulnerable groups in project districts.  Hence, it is imperative to raise the status of landless families above the poverty line.  The SHGs are to be encouraged to take up viable enterprise and to enhance their fund mobilization by regular savings, investment in viable income generating activities and in time repayment of the loan taken.  The IGAs are meant mostly for the landless and asset less stakeholders in the watersheds.

Quality of fish raw material plays an important role for the quality of the end-product. Once the fish raw material freshness and nutrition value is lost, it cannot be recovered in the processing stages. Products that are processed from low quality raw material are not always a safety risk, but the quality (nutrition value) and shelf life is significantly decreased. The quality deterioration can start right away during fishing and it continues all the way to the final user. Time-temperature abuse should be avoided at all stages of handling till landed fish reaches the consumer or the processor. In tropical countries more care in handling is necessary as fishes thrive in high ambient temperature has high body temperature and hastens spoilage.

Fish is highly perishable because of their chemical composition. It has high content of soluble substances in the flesh (many of which contain nitrogen and triglycerides characterized by polyunsaturated fatty acids) and high level of autolytic enzyme. After the death of the fish, spoilage starts due to the action of microbes, enzyme and oxidation. It is therefore, necessary to preserve fish after harvest if not consumed or disposed immediately.

Drone cameras have gained popularity due to advancements in technology and decreasing prices. Today, you can find various types of drones, from beginner models with cameras to those equipped with powerful HD and high-resolution 4K cameras. Despite the diversity of models, most drones share similar controls and functionalities. Thanks to technological advancements, drone cameras have become essential tools for aerial photography and videography. This article will explore the components of a drone camera, its functionality, and its diverse applications across various industries.

A drone camera is a specialized device attached to an Unmanned Aerial Vehicle (UAV), designed to capture high-quality aerial images and videos. These cameras vary in size and design, from compact versions for hobbyists to professional-grade models used in commercial applications.

To sustain the meat industry in profitable manner, efficient utilization of meat by-products is an important issue. In today’s competitive world the realization of old saying “Only the last cry of the animal is wasted” has become essential. The utilization of by-products not only ensures additional revenue but also reduce the cost of various mandatory disposal treatments. The live animals are becoming costlier over the dressed carcass which compels the utilization of by-products. Moreover, unused by-products is also a great threat to environment and public-health apart from loosing nutritional resources. According to FAO (2004) estimates 106.75 million livestock and more than 650 million poultry birds were slaughtered annually in India leading to production of 6.3 million MT meat and different by-products of appreciable value. Now a day’s various techniques are available for the utilization of by-products for different purposes still significant portion of the by-products are unutilized and poses huge economic losses.

Animal By-products are the portions of animal body which are not included in dressed carcass. Animal by-products can be estimated by subtracting the dressing percentage from 100. Dressing percentage is inversely proportional to the byproducts means lower the dressing percentage, higher will be the yield of by-products and vice versa. In normal cases dressing percentage usually ranges between 50-70 percent and by-products yield in between 30-50 percent. However, the actual percentage may be higher because it excludes the weight of bones in muscles which is a part of dressed carcass.

Composition is a fundamental element of cinematography, essential for creating engaging video content. When designing shots and angles, videographers must consider not only technical aspects like lighting and sound but also creative choices that set the mood. Video composition helps filmmakers craft a narrative, influencing how viewers engage with the story. Effective composition goes beyond just framing; it involves color grading and the strategic placement of elements within the frame, making it vital for captivating the audience.

Video Composition Tutorial

A tutorial from B&H Photo’s YouTube channel outlines five crucial rules of video composition that should not be broken. These rules serve as a foundation, providing structure and consistency to the creative process

Introduction

Use of acid/base is common in laboratories for experiments like titration and proper safety in their handling laboratory is necessary. In this chapter we will briefly discuss about the safety measures necessary to be adopted while using acids/bases in laboratory for any experiment.

Handling of Strong Acid/Base

There are four major points that need to be taken care of while working with strong acids or bases that might be quite harmful if any accident happens.

1. Protect Yourself

Wear a lab-coat and acid-resistant gloves: Always use lab-coat/apron and make it sure that the sleeves properly cover your arms. More importantly, use gloves made of acid-resistant materials and also wear shoes to protect your feet while wearing long-pants/jeans. Female with long hair, must tie her hair properly (with rubber band) to avoid any disturbance caused by appearance in between.

Wear safety goggles: It is important to wear safety goggles to protect your eyes using larger and fitting goggles that cover front as well as sides of your eyes. Always use properly fitting and adjustable goggles because smaller/ loose goggles may not protect the areas around your eyes against accidental acid spills and it may fall down from your face, if it is too loose.

Locate emergency wash area: There must be an emergency washing area nearby the work place or laboratory containing lab spill management kits. All the workers in the laboratory must be aware of using the kits and emergency plans.

Neutralize acid: Don’t panic even if an acid or chemical spill happens. Stay calm and act as quickly as possible. In case an acid spills, neutralize it by using sodium bicarbonate so that they can be cleaned and disposed safely. If acid comes in contact of skin, wash it off under running tap water but do not use/ apply sodium bicarbonate on skin.

Once the animal is darted, immobilized animal should be under the expert care of an experienced wildlife veterinarian. The veterinarian needs to monitor the complete immobilization process and should know what to do if something goes wrong. Keep the darted animal in sight and allow the drug to act completely which may generally take 5- 25 minutes depending on the species, sex, drug used, and body condition of animal. Any noise or excitement may cause immobilized animal to wake up or take flight which may make animal search difficult.

Introduction

For proper and efficient experiment to be conducted, experimenters need so many chemicals to deal with. This includes different acids, base, salt, different kind of indicators and so on. Some of these chemicals are safe for health, but some of them are dangerous to health when come in close proximity to our body while some of the chemicals cause health issues on inhaling. These may cause improper functioning of some of our physiological activities. Acids and bases are very dangerous for our tissues when come in our contact. These may cause serious respiratory problem in addition to injuries on coming to our contact. Some chemicals are exploratory yet they may cause even death of the person working with them in laboratory. Therefore, mere use of the chemicals in laboratory is not only the objective of the experimenter. The person working in laboratory should also be concerned about the proper use and handing of the chemical while working with it. Thus, every researcher of an institution who has to work with chemicals in a laboratory should be made aware about the chemicals to be used in the laboratory and the consequences if any mishandling of a laboratory chemical occurs. Not only these, suitable precautionary measures should also be known to the researcher along with ensuring the availability of the required safety equipment/installations. Hence, a proper understanding of the ways of handling of chemicals in a laboratory is of prime importance for the personals like you who are working or have to work in laboratory.

Safe Handling of Chemicals in Laboratory

Safe use/handling of chemicals in laboratory include minimized exposure to chemicals, maintaining safety data sheets, proper labelling, storage, segregation, and transport of chemicals for personal hygiene.

Introduction

We come across a variety of chemicals every day in a laboratory. While some of them are relatively safer, others are extremely hazardous. Thus, it is very important to know the potential hazards that can be caused by the chemicals present in the laboratory and the safety measures needed to be followed to avoid the hazards. Additionally, we should also be aware of the steps necessary to be taken on such hazardous situations. According to IUPAC, a hazardous chemical mean the chemical which has the potential to cause damage in various ways. In a laboratory, there are chemicals that might be irritant, carcinogen, respiratory fibrogen, systemic poison, asphyxiant, flammable, etc. which have the potential to cause hazard to the workers or environment. Therefore, it is important to use appropriate procedure to reduce the risk and protect the health/safety of laboratory personnel, the public and the environment.

Types of Hazards Associated with Chemicals

Chemical hazards: The hazards caused by chemicals can be broadly classified into three categories.

1. Health hazard: This is also known as toxic effects of chemical. The risk associated with a chemical in laboratory depends on the extent of exposure and the inherent toxicity of the chemical. Many chemical reactions form the product that might be much more toxic than the reacting chemicals. For example, inadvertent mixing of formaldehyde (a common tissue fixative) and hydrogen chloride results in the generation of bis(chloromethyl) ether, a potent human carcinogen. For most of the chemicals, the route of exposure (through skin, eyes, gastrointestinal tract, or respiratory tract) is more important (Figure 17.1) that must be considered during risk assessment.

This practical assignment deals with operational principles and functions of the Overhead Project which governs the appropriate handling and application of OHP in real situation and also guides students in preparing different types of Overhead Projector slides for presentation.

This practical assignment is designed for the students to give first-hand information on components, working procedure and handling of public address system (PAS) and liquid crystal display (LCD) projector.

PURPOSE

 To acquaint students with how to operate and handle the public address system.

 To acquaint the students handle LCD projector.

In India, the collection, transport and distribution of raw milk involves a number of agencies and persons at rural and urban level – village producers, milk collectors, halwais (Sweet-makers), milk vendors, dairies, producer-retailers and wholesale or retail markets.

1. Collection

Usually, the milk collectors approach the small village producers to collect milk and the same is sold directly or indirectly (through agents) to a dairy (milk procurement centres) or halwais or city milk vendors or consumers. The producer – retailers themselves, in some cases, supply the milk to the above said parties. The production of milk in small, scattered holdings in village causes problems during its collection. It involves visits to many villages, some of which are not easily accessible for the purpose.

A video camera is an optical device designed to capture videos, differing from a movie camera that records images on film. Initially developed for the television industry, video cameras are now widely utilized for various purposes.

Video cameras are primarily operated in two modes. The first mode, prominent in early broadcasting, is live television, where the camera transmits real-time images directly to a screen for immediate viewing. While a few cameras still support live television production, most live feeds are now used for security, military/tactical, and industrial applications requiring covert or remote monitoring. In the second mode, images are recorded onto a storage device for archiving or further processing. For many years, videotape was the primary format, but it has been gradually replaced by optical discs, hard disks, and eventually flash memory. Recorded video is utilized in television production and is increasingly used for surveillance and monitoring tasks, where unattended recording of a situation is necessary for later analysis.

Ornamental fish breeding and trade provide excellent opportunities for employment and income generation. One of the most critical determinants of the success of the trade is the problem of delivering a quality product to the market. The know-how of collection, critical handling, packaging methods are essential for serving the successful transport of live tropical fish to their final destination. However, a major impediment in expanding the trade of indigenous fishes is the poor roads/communication from most of the collection/landing centres to the town, non-availability of oxygen packaging at remote collection centres, difficulties in transportation of the collected fishes to the agent/stockist. Transportation of live fish and shellfish from areas of collection to destination or from areas of farming to the destination is an important activity of ornamental fish industry.

Proper collection, packing and transportation may help in increasing trade to a greater extent. Ornamental fishes destined for marketing, both domestic and export, have to use modern post-harvest technology or modifications of the current post-harvest technology to improve the post-harvest and post-shipment survival that is critical to the industry. It is in this context that the significance of packing and transport come into the picture. To overcome the problem of high mortality of fish species at different stages during transportation, it becomes essential to evaluate the most suitable and ideal condition for transportation. At present, the mortality rate during fish catching, collection, transportation is very high. The claim by the importers due to DOA (Death on Arrival) from India is on the higher side compared to the consignments from other developing countries. This is due to the lack of appropriate technology for fish packing & transportation/ shipment. Similarly, since the airfreight charges are very high, the exporters have no idea of the optimum number of a particular live fish to be packed in a container to reduce transportation cost. Such information is lacking for Indian fishes. The success of ornamental fish transportation depends on the following steps:

10.1 Introduction

The primary purpose of egg packaging is to keep the egg safe from damage, such as cracking, while in transit. By limiting gas exchange via the shell and shell membrane, the egg package may help safeguard the egg’s internal quality. Once an egg has been deposited, it is immediately exposed to the conditions of the henhouse. In this environment, it is exposed to many different microorganisms. Almost often, there are no negative effects on health. However, there are microbes that can ruin eggs and others that can cause food poisoning. Salmonella bacteria are found in the digestive tract of all animals and can contaminate the poultry houses.

HANDLING OF ANIMALS

Objectives

• For carrying or shifting the animal
  Sexing the animal – to know the sexing of animal.
• Administration of substances
  To conduct experiments.

Materials required – Laboratory animals, apron, tattle and clean towel, weighing balance.

Handling

X-ray film is delicate and should not be handled carelessly or roughly. Avoid touching its surfaces, holding it as near the edges as possible with clean, dry hands. It is sensitive to maltreatment of any kind; heat and light adversely affect the emulsion. It can be handled safely and rapidly for all radiographic purposes as long as the X-ray specialist uses precaution to avoid the production of foreign marks (artifacts) on the film.