eChapters

Introduction
Video and graphics libraries are essential tools for creating, managing, and enhancing multimedia projects, from professional filmmaking to web development. These libraries provide pre-built elements, including animations, images, icons, effects, and stock video footage, which can significantly reduce production time and elevate the quality of visual content. In this chapter, we will discuss the role of video and graphics libraries, popular library platforms, techniques for integrating these assets into projects, and essential considerations when working with them.
Understanding Video Libraries
Video libraries offer a vast repository of footage that creators can use to supplement or enhance their projects. These libraries are especially useful in situations where creating original footage is impractical, costly, or timeconsuming.
Key Elements in Video Libraries
• Stock Footage: Pre-recorded video clips covering a wide range of themes, from nature and urban landscapes to action shots and abstract animations.
• Background Footage: Visuals intended to support on-screen text or act as a backdrop.
• Transitions and Effects: Clips or assets used to transition smoothly between scenes or add effects to existing footage.
• Licensed Footage: Footage that’s licensed for use under specific terms, such as Creative Commons or commercial licenses.

Torsion, or twisting, of one or more segments of the alimentary canal is a serious and often life-threatening condition in animals. It involves the abnormal rotation of the gastrointestinal tract along its axis, resulting in obstruction, vascular compromise, and subsequent tissue death. Torsion can affect differentparts of the alimentary canal, including the stomach, intestines, and cecum, and  is more commonly observed in certain species and breeds due to anatomical and environmental factors.
This condition requires prompt diagnosis and treatment to minimize morbidity and mortality. This discussion provides a comprehensive understanding of torsion, its pathophysiology, causes, clinical signs, diagnostic methods, and management strategies.
Pathophysiology of torsion
The alimentary canal is suspended in the abdominal cavity by mesenteric attachments that contain blood vessels, nerves, and lymphatics. When a segment of the canal twists along its mesenteric axis:
1. Mechanical obstruction: The lumen becomes occluded, preventing the passage of ingesta or gas.

Important by-products from rabbits are meat, wool, planner and skin. It can be made highly profitable if products are wasted because people do not have enough knowledge about their processing.

11.1. Slaughtering and Dressing

    1.    Rabbits are killed by one of two methods. The preferred method is dislocation of the neck. The rabbit is held firmly by the rear legs and head; it is stretched full length. Then with a hard, sharp pull, the head is bent backward to dislocate the neck. The rabbit can also be struck a hard, quick blow to the skull behind the ears. A blunt stick or side of the hand is commonly used to incapacitate the rabbit. Both methods quickly render the rabbit unconscious.

Pigs are highly prolific among meat producing livestock and also excellent to all other type of farm animals in the efficiency of converting feed into high quality pork. The Nutrient requirements expressed for the mono-gastric animals like poultry and pigs as percent of the diet or the amount per kg of the diet, since they are generally fed in groups rather than individual feeding practiced in case of cattle and buffaloes (where absolute requirements are given). The latest requirements available are NRC nutrient requirements for swine, 1998 (10th revised edition), BIS, 1986 specifications for pig feeds and ICAR, 1998 for growing and finishing swine. Similarly ARC requirements are also available. NRC requirements are on 90% DM basis and are for breeds like Large White Yorkshire, Landrace, Berkshire etc., while BIS specifications are on 100% DM basis and for indigenous pigs, improved pigs and crossbred pigs.

Although the Rhabditids have been studied from last one century, the field level use of Entomopathogenic nematodes the members of Rhabditids for the management of insect pest was followed only after Dutky who practically used EPNs in 1937 on Apple Codling moth.

The taxonomy of Entomopathogenic nematodes of the order Rhabditidae is discussed in this lecture.

The 20^th century had seen unprecedented increase in fishing capacity; in terms of the vessel number, increase in size of the vessels and advances in the electronic and navigational equipment coupled with easily manufactured and durable fishing nets. The effect of these innovations sequentially, was the burgeoning in the fish production, plateauing of catches and the myth of inexhaustibility of fishery resources in the sea was proven wrong. A large number of stocks world over have declined and the stock status of many are now alarming, but still the trend towards larger, more powerful and faster vessels continues.

Global fisheries production has reached a plateau and is now hovering around 80 million tonnes during the last decade. It is also noted that the status of world’s marine fish stocks have not improved overall. About 31.4% of assessed fish stocks are fished at a biologically unsustainable level and therefore overfished. Fully fished stocks accounted for 58.1% and underfished stocks 10.5%. It is evident that most of the stocks are fully fished with no further potential for increase in production.

The importance of reducing bycatch and minimizing ecological impacts of fishing operations has been emphasized by scientists and fishery managers and recognized by fishermen. Trawl fisheries in different parts of the world are now being required to use bycatch reduction devices as result of pressure from conservation groups and legal regimes introduced by the governments. The Code of Conduct for Responsible Fisheries (FAO, 1995), which gives guidelines for sustainable development of fisheries, stresses the need for developing selective fishing gears in order to conserve resources, protect non-targeted resources and endangered species. Although the problems of using non-legal gears and designs often with smaller mesh sizes are reported. Most of the problems due to generation of bycatch and damage to the ecosystem function, has been implicated due to trawling.

Aim: To determine the Load characteristics (External characteristics) of self excited D.C. shunt generator.

If a dc shunt generator, after building up to its voltage, were loaded, its terminal voltage will drop. This drop increases if load increases. But this type of terminal drop is undesirable for a specified service. The relation between terminal voltage and load current is called external characteristics. Speed is to be kept constant. Reason for voltage drop:

The Election Commission of India is an independent constitutional body that has the responsibility of managing elections in India. It oversees the electoral processes for various positions such as the Lok Sabha, Rajya Sabha, state Legislative Assemblies, as well as the offices ofthe President and Vice President. The Election Commission operates under the authority of the Constitution, specifically Article 324, and the Representation of the People Act. In situations where existing laws are inadequate to handle specific election-related issues, the Commission has the power to take appropriate action in accordance with the Constitution.

Impaction of the alimentary tract is a condition where ingesta or foreign material accumulates excessively in one or more segments of the gastrointestinal system, causing a blockage. In ruminants, the rumen and reticulum are common sites of impaction due to their roles as primary fermentation chambers. This condition significantly impacts the animal’s health, productivity, and welfare, and if left untreated, it can lead to severe complications or death.
Pathophysiology of impaction
Impaction occurs when the normal passage of ingesta is hindered due to excessive accumulation of indigestible, poorly digestible, or foreign materials.
This leads to:
1. Decreased motility: Overloading the rumen or reticulum impairs their motility, disrupting the normal mixing and fermentation processes.
2. Reduced absorption: The accumulation hinders the absorption of volatile fatty acids (VFAs) and other nutrients.
3. Fermentation imbalance: The retention of ingesta alters microbial populations, causing reduced fermentation efficiency.
4. Secondary issues: Prolonged impaction may lead to dehydration, metabolic acidosis, rumenitis, and systemic effects like toxemia.

1.1 Introduction
The rural economy has greatly benefited from dairy farming. In rural India, milk has become a substantial source of revenue. Dairy products, including milk, are vital components of modern diets. India holds the title of being the greatest milk producer and consumer globally. Together with native cattle, crossbred cattle, and water buffalo, it also has the biggest dairy herd. Since 2000, there has been a steady and substantial annual growth rate of 4.2 percent in both milk production and consumption. Additionally, second, respectively, in terms of population (GoI, 2014). It accounts for around 25% of the global bovine population. India has emerged as the leading global producer of milk, with a remarkable production of over 155.5 million tonnes during the 2015- 16 period. This translates to a per capita availability of 337 grammes per day, according to the Government of India (GoI, 2017). Dairy farming serves as a primary means of subsistence for more than 100 million individuals. A significant percentage of small-scale livestock keepers lack access to land, and the prevalence of rural landless households is expected to rise due to the continued subdivision of land holdings. Livestock are increasingly vital for the income of smallholder and landless farmers. These initiatives have positively impacted the farmers’ food production, nutrition security, and household income. Additionally, they have played a crucial role in creating employment opportunities in rural areas.

Wasteland: Land not capable of producing materials or services of values.

Water available : The amount of water, plants can extract from unit volume of soil. It is mainly derived from capillary water and corresponds roughly to the water held by the soil between the limits of field moisture capacity and the wilting co-efficient.

Water balance: i) The distribution of water in space, and over time, within a system. Where plants are growing on land this means considering rainfall (and also interception loss, stemflow and throughfall), drainage, evapotranspiration, runoff and soil water storage. ii) Balance of input and output of water within a given defined hydrological area such as a basin or a lake, taking into account net changes of storage. 

Units/measures are used to specify quantities. Every unit has a well-defined standard basic value, which is used as a reference in measurements. The units used in scientific practice constitute a scientifically established system, SI (Système International). Although only SI units are official , numerous non-SI units are still widely used (calorie, Ångström, Celsius etc.). We distinguish two types of quantities with two corresponding types of SI units. The base quantities cannot be derived from other quantities. Many of these are used in biochemistry (names of units and their symbols are given in brackets) to quantify the mass (gram, g), the length (meter, m), the time (second, s), the temperature (kelvin, K) and the charge (coulomb, C). Much larger is the group of derived quantities. Of these, the various units of concentration (to characterise the abundance of materials in solutions and other mixtures), volume and energy are the ones most frequently used in biochemistry. It is important to note that the terms mass and weight are often used interchangeably as alternatives. Technically, however, they have different meanings. The mass is the total quantity of matter in an object, which comes from the mass of all of its protons and neutrons, although not simply additively. Weight is a measure of the gravitational force exerted on an object. As the mass of protons and neutrons is the unit mass, their total mass in an object (e.g. the mass of a molecule, the molar mass) is a unitless number (e.g. the molar mass of water is 18). In other words, the molar mass is a relative number that would reflect the number of protons and neutrons in an atom or molecule, if the masses of protons and neutrons were additive. We make mass measurable by expressing it in grams because this way we can handle it as weight and measure it with a balance, the device developed for this purpose. 

ABSTRACT

Studies on the behaviour of animals are of utmost importance in the conservation of species. Ecology of the communities and individual species has to be examined in terms of different activities to understand the requirements of the species. Foraging and breeding are the major activities while resting and flight maintenance are also essential, although the time spent might vary in different species or situations.

Bird community studies conducted along with my students in different habitats in the Western Ghats since 1995 showed how the species are associated with each other and the impact of habitat changes on them. Endemic and threatened birds of the Western Ghats were specific about selection of habitat and food in different seasons. Identification of such critical habitats is crucial for conservation and management.

The studies on the bird community and drongos at Thekkady, Periyar Tiger Reserve conducted by me during 1979 to 1982, examined the association of drongos with other species in the area, especially while foraging. They fed mostly in mixed foraging flocks which is beneficial to all the participants. The strategy adopted by them for ecological isolation to reduce competition was by selecting different strata and substrate of the vegetation, varying sizes of insects, and methods of feeding.

In the case of wetland birds also habitat selection is a major behaviour limiting their numbers. For the threatened birds such as the Siberian Crane and the Andaman Teal, habitat quality and food availability were critical. Habitat degradation with over abundance of grass and reduction in sedges resulted in spending long duration for feeding and less returns.

Breeding behaviour of birds is interesting because of their strategies such as when to nest and where to nest. Studies on the seasonality have shown the importance of climatic factors. Many of our land birds nest during summer. Nest-site is also crucial as selection of the site with suitable macro and micro-habitats determine the success of the brood. The habitat patches for the individual pairs or groups of breeding birds which are defended against intruders are termed as territories which play a vital role in the distribution and density of birds. Thus the strategies adopted by species are dependent on the environment and species specific constraints affecting the survival of the species.

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.

One of the important strategies to mitigate the adverse effects of frost is to develop tolerance in plant against frost stress. Tolerance is such a condition of frost vulnerable plant species, they develop certain ability to withstand the freezing stress by avoiding the states of inter or intracellular freezing. Thus, the process of cold hardening or acclimation together with ability to super cool at freezing temperatures is usually termed as frost tolerance development.

Aim: To perform speed control of D.C. shunt motor by

1. Armature resistance control method.

2. Field (flux) control method.

This method is based on the fact that by varying the voltage available across the armature, the back EMF and hence the speed of the motor can be changed. This is done by inserting a variable resistance RC (known as controller resistance) in series with the armature as shown in Fig. (a).

In the world of media production, recording techniques are the foundation upon which all post-production processes are built. Whether you’re capturing video for a film, podcast, or YouTube video, understanding how video and audio are recorded and edited is crucial for achieving a polished and professional final product. In this chapter, we will explore the two main types of editing processes—linear and non-linear—and how they apply to both video and audio recording. By the end of this chapter, you’ll have a thorough understanding of these editing methods and how to apply them effectively in your projects.
1. The Basics of Recording Techniques
Recording techniques refer to how video and audio are captured, whether it be on film, digital media, or any other format. For simplicity, we will focus on modern digital media formats like DSLR cameras, digital recorders, and software applications.
Video Recording Techniques
Video recording involves capturing moving images via cameras that use sensors or film stock to record visual data. Modern digital video cameras typically offer a wide range of settings that allow creators to manipulate exposure, frame rate, resolution, and depth of field. The main aspects of video recording include:
• Frame Rate: Frame rate is the number of individual frames that make up one second of video. Common frame rates are 24 fps (frames per second) for cinematic look, 30 fps for general video, and 60 fps for highmotion content like sports.
• Resolution: Video resolution refers to the number of pixels in each frame. The most common resolutions are 1080p (Full HD), 4K (Ultra HD), and increasingly, 8K.
• Exposure & Lighting: Proper exposure (how much light hits the camera sensor) and lighting are critical for achieving the desired look. Too much exposure leads to overexposure, while too little leads to underexposure.

There are certain inherited traits (characters) in various species of livestock which are economically important. These traits have to be improved for increased production like milk, meat, egg, wool, etc.