eChapters

Morphological characteristics

The plant is an erect undershrub, 1.5–2.5 m tall. Leaves are elliptic-oblong to lanceolate or ovate to ovate–lanceolate, 12–25 × 5–11 cm, acute or acuminate at apex, acute or cuneate at base, glabrescent, crenate-dentate; densely stellate–tomentose beneath; petiole 4–12 mm long; Fruits globose, drupes or berries, white to yellowish-brown with or without fruit stalk, fresh being succulent, 1–3 mm in dia. Intact fruits are smooth and brownish in colour and exhibit centrally located bilocular carpel and 4 nutlets each embedded with a yellowish white seed, in a transversely cut surface of a fruit;

Floral characteristics

Flowers appear in July-November are small, 0.5 cm long, pink in colour and crowded in axillary peduncled globose cymes, solitary, pedunculate or sessile. Flowers are bisexual, actinomorphic and fragrant. Calyx 4 or rarely 5 toothed, pubescent, corolla infundibular, 4 or rarely 5 lobed. Stamens are 4, exserted, anthers oblong 2 loculed, dorsifixed. Ovary is superior, 4 lobed, 4 loculed, 1 ovule in each locule, style short, stigma 2 lobed. Flowering & fruiting occurs during June–Dec. Fruits when tasted at first are somewhat sweet, later bitterish; fruit has fragrant odour specially after slight bruising the fruit. The fruits of Callicarpa macrophylla are edible.

Distribution

Plants of this species grow in open and secondary forests along the upper Gangetic plains, West Bengal Plains, Eastern and Western Himalayas, Kashmir, Assam, and northern Andhra Pradesh up to an altitude of 1800 meters. The species grows in other places worldwide, such as Nepal, Indonesia, China and South Korea.

Principle

The one-step growth experiment refers to a scientific methodology. A study aimed at observing the molecular events that take place during viral reproduction. This elucidates the fundamental features of the virus replication process and determines the optimal multiplicity of infection and timing for virus harvest. The initiation of modern bacteriophage research can be traced back to the development of the one-step growth curve by Max Delbrück and Emory Ellis in 1939, which utilised the Escherichia coli-T4 bacteriophage system. One step growth curve consists of three clearly defined phases 1. Latent period refers to the initial phase of a process where no significant changes or activities are observed. 2. Burst or Rise period is the subsequent phase characterised by a sudden increase virus particle. 3. Plateau period is the following phase where a stable and constant level virus replication.

Materials required

The quality and effectiveness of extension services are critical to the agricultural sector’s long-term viability and output. Farmers have been getting agricultural information from extension workers via interpersonal communication for many years. Still, the number of extension employees has been declining while the number of farming families has increased. As a result, the country’s current extension service needs to improve in reaching out to farmers with timely and relevant agricultural information. ICTs are considered a partial answer to quickly getting information to the growing number of farming households because relevant and timely information is vital in agriculture. Farmers may receive up-to-date knowledge and information on agricultural technologies, best practices, markets, price patterns, and customer preferences through its use.

Since farmers in many parts of India, including West Bengal , are becoming more mobile and internet savvy, disseminating useful real-time information about crops, soils, climate, cultivation practices, financing, produce storage, and marketing to farming communities is more important and challenging. Many concerted efforts from the government, non-government organizations, and industry are now required to make our farmers ICT -friendly so that the benefits of rapidly evolving technological advancements in farm production, storage, and marketing can be shared equally among all communities and sectors of farming.

A flyer is a concise and visually appealing tool often used in public relations (PR) campaigns to communicate a message, promote an event, or highlight an organization’s products or services. A well-designed flyer can effectively capture attention, convey key information, and inspire action.
Key Elements of a PR Flyer
1. Headline
• Eye-catching and concise (e.g., “Join Us for the Farmers’ Mega Day”).
• Reflects the primary message or purpose of the flyer.
2. Visuals
• High-quality images, graphics, or illustrations.
• Relevant to the flyer’s content to engage the audience instantly.
3. Content
• Use simple, persuasive language.
• Include essential details: what, when, where, who, and how.
• Add a call-to-action (CTA), such as “Register Now” or “Contact Us”
4. Branding
• Logos, colors, and fonts consistent with the organization’s identity.
• Inclusion of a tagline or slogan, if applicable.
5. Contact Information
• Phone number, email, website, or social media handles for inquiries.
• QR codes for direct access to additional resources or registration.
6. Layout
• Organized and visually balanced.
• Ample white space to avoid overcrowding.

This chapter examines the human body as an integrated working system governed by anatomical, physiological and biomechanical principles. It describes the roles of the musculoskeletal, nervous, cardiovascular, respiratory and metabolic systems in movement, strength, coordination and endurance. Muscle strength, joint range of motion, posture, flexibility and physical work capacity are discussed in relation to workplace demands. The chapter distinguishes static and dynamic work and explains how unsuitable loads or repetitive tasks contribute to fatigue and injury. Individual differences associated with age, fitness, body dimensions and physical capability are also considered. These concepts provide a scientific foundation for setting safe workloads and designing tasks around natural human limitations.

Abstract

The relationship between development of P. leucotricha with different weather parameters (i.e. temperature, relative humidity and rainfall) was ascertained by computing multiple regression equations between these factors along with coefficient of determination (R2). Multiple regression analysis revealed that weather parameters altogether accounted for 31.88 to 94.45 per cent variations in Shimla district (Himachal Pradesh) during 2002-03. The accumulated variation due to weather parameters during the years accounted to different levels of primary inoculum and infection conditions under the field conditions.

Abstract

Tsunami (2004), that struck the Tamil Nadu coast has left deep marks in the minds of the affected society. The interview conducted in the coastal villages of the tsunami affected Nagapattinam has brought out many salient societal issues like, loss of leadership, widow hood, debt grip, psychological depression etc, which warrant deeper look to bring them out from the syndrome.

Keywords: Tsunami (2004), Social issues, Nagapattinam, India

INTRODUCTION

The damages caused by tsunami (2004) along the coastlines of most of the South Asian countries are indelible not only from the minds of the coastal population but also from the heart of the entire humanity. The worst affected in the disaster are the fishing community. Many of their mechanized and un-mechanized boats and catamarans were converted to useless debris and garbages by the heartless tsunami. When their settlements themselves were swallowed even with out chewing, nothing to talk about their fishing nets which were just blown off by the ferocious tsunami. In addition, the infrastructure facilities like roads, communication systems, water and power supply were also incalculably damaged. Next to fishermen community, the affected souls were the farmers whose cultivable lands were turned into marine wet lands with swimming and tossing fishes. The Indian subcontinent was facing such onslaughts of various natural disasters periodically but our morale always stood by our side prohibiting us declaring them as national calamities for getting international aids. Specifically in this case, the central and state governments, NGOs and Voluntary Organizations have risen phenomenally to help the affected who were in need. Despite best efforts taken to provide relief and rehabilitation to the affected people, the tsunami has seedled some societal issues / syndrome, which may take long years to settle; it may not settle too. The paper discusses some of such issues gulled out through the interview conducted amongst various cross sections of the affected community.

Horse

The bony cage of thorax is longer but narrower in horse than that in ox. It is compressed laterally

The thoracic vertebrae are eighteen in number. Their bodies are shorter. The spinous process of the first one is shorter and it is curved backward. The height of the spinous process increases up to third and fourth and there after it diminishes gradually up to fifteenth beyond which it is almost same. The backward inclination of the spinous process is most pronounced in the second. The spine of the sixth vertebra is straightly vertical and that of the last two vertebrae is directed slightly forward.

The ribs are in eighteen pairs. First eight pairs are sternal and the remaining ten pairs are asternal. These are shorter, narrower and more curved. The length of the ribs increases up to sixth and then it diminishes. The cranial borders of the ribs from second to sixth are sharp and from ninth to eighteenth they are rounded and thick. The lower edges of the ribs are excavated for receiving the costal cartilages. The first rib inclines little forwards, the second rib is vertical and the rests slope backwards.

The first pair of costal cartilages articulates at their distal ends with each other and with the sternum. The upper ends of the cartilages form synarthroidial joints with the ribs.

The sternum of horse is composed of seven sternebrae. It is canoe or boat shaped and presents three faces, three borders and two extremities. It is compressed laterally in front and dorsoventrally behind. The dorsal surface is narrow and triangular. It is concave craniocaudally. The lateral surfaces are convex above and slightly concave below. The lateral borders separate the dorsal surface from the lateral surfaces and they give attachment to two lateral sternal ligaments. The ventral border is the direct continuation of the cariniform cartilage of the cranial extremity of the sternum. It is thin, sharp and convex from before backwards. It is very prominent and can be felt by palpation in live animal. It is also called as sternal crest or keel. The cranial extremity presents a laterally compressed cariniform cartilage which presents a deep notch dorsally for articulation with the first pair of costal cartilages. The first sternebra is fused with second and the manubrium is made up of cariniform cartilage and the first sternebra.

6.1. Aspergillosis disease causing fungi

Aspergillus fumigatus

Aspergillosis is a fungal infection that commonly causes respiratory disease in pet birds. It can infect both upper (nose, sinuses, eye, and trachea) and lower (lung and air sacs-a specialized part of the respiratory tract that birds have) respiratory organs or more broadly distributed systemic infections (Fig. 187).

The Symptoms includes Weight loss, Open-mouth breathing or gasping for breath, Tracheal movement or in-out-in movements in the region of the neck, Tail-bobbing or movement of the bird’s tail up and down while breathing in and out, heavy breathing after flight or exercise, Change in voice and persistent itching or rubbing of cerenares.

Principle

Unlike bacteria, which can be cultivated on an artificial nutrient medium, viruses rely on a living host cell for replication. Eukaryotic or prokaryotic host cells that have been infected with viruses can be used to produce viruses. Subsequently, the medium and cells can be collected and used as a virus source. The production of viruses usually consists of a two-step procedure: f irst, the growth of host cells, and then the production phase. Understanding the complex relationship between the host cell and virus is essential. Various crucial factors have been recognised, such as the concentration of host cells during infection and the multiplicity of infection (MOI).

Materials required

Equipment

a) Biosafety cabinet level 2 (B2)

b) Carbon Dioxide (CO2 ) Incubator (set to 37°C with a 5% CO2 in air atmosphere)

c) Refrigerated centrifuge

d) Refrigerator

e) Inverted Microscope

f) Micro pipettes(1-10 μl, 10-200 μl, 100-1000 μl)

g) -86°C/-80°C deep freezer

h) Autoclave

i) Hot air oven

j) Filtration Assembly

Creating a brochure for public relations involves several important steps—from planning the content to designing the layout effectively. Here’s a guide to help you create an impactful PR brochure:
Define Your Purpose and Audience
• Identify the Objective: What message do you want to convey? Is it to inform, persuade, or promote?
• Understand Your Audience: Who are you trying to reach? Tailor your language, tone, and visuals to resonate with your target demographic.
Content Development
• Key Information: Include crucial details such as your organization’s mission, key services, achievements, testimonials, and contact information.
• Compelling Headline: Create an engaging headline that captures attention and summarizes the key message.
• Clear and Concise Copy: Use simple language and short sentences. Aim for clarity and brevity.
• Call-to-Action: Encourage the reader to take the next step, whether it’s visiting a website, contacting for more information, or participating in an event.
Brochure Layout and Design
• Type of Brochure: Choose a format (bi-fold, tri-fold, Z-fold, etc.).
• Visual Hierarchy: Use headings, subheadings, and bullet points to organize information.
• Consistent Branding: Ensure the brochure follows your brand’s colour scheme, fonts, and logos.

Abstract

The studies were conducted during the years 2002 and 2003, to standardize the best method and time for summer budding in walnut. Four methods of summer budding viz. chip, annular, patch and shield were performed at 10 days interval from 15th May to 24th July. The results revealed that among the four methods of summer budding, chip budding was found to be highly superior to other methods of budding and gave 92% bud take success on 25th May and 87 per cent on 15th May also. Annular budding performed on 14th June was found next superior method and time of budding for walnut propagation when it resulted in 81% bud take success. Chip budded plants attained maximum height and radial growth as compared to annular and patch budded plants. The period from mid of May to first week of June was considered as optimum time for chip budding and mid June to end of June for annular and patch budding for walnut propagation under mid hill conditions of North-western Himalayas.

The science dealing with the measurement of size of any microscopically visible microorganism is known as micrometry which is based on the principle of physics. Before measuring a cell, the diameter of the microscopic field must be established by means of optic devices, namely an ocular micrometer and a stage micrometer.

a)Ocular micrometer : It is a circular disc that is placed in the eyepiece. The disc is graduated in to several small divisions marked from 0 to 100.It is placed inside the eyepiece of the microscope. The distance varies according to the objective of the microscope which can be easily determined by using a stage micrometer.

b)Stage micrometer : It is a glass slide graduated in 1 mm. Again 1mm is divided into 10 large divisions and 100 small divisions (10 x 10 = 100 divisions). These divisions are equally placed therefore 1 small division is equal to 0.01 mm or 10 μm.

ABSTRACT

Protoplast isolation of Piper nigrum L.and Piper colubrinum Link. was attempted using axenic leaves at two different osmotic potentials viz. 0.60 and 0.65 molar (M) osmoticum. In Piper nigrum, highest protoplast yield (6.90 x 10⁴ protoplasts ml^-1) was observed in the enzyme combination 1.40 per cent cellulase and 0.310 per cent pectinase while in Piper colubrinum, highest protoplast yield (13.0 x 10⁴ protoplasts ml^-1) was observed in the enzyme combination 1.0 per cent cellulase and 0.217 per cent pectinase during 21 h of digestion. In both the species, 0.6 M osmoticum was found to be optimum to maintain the osmotic potential of the isolation solution. Filtration-centrifugation technique was found to be superior in purifying the protoplasts of Piper species compared to sucrose floatation method. Centrifugation at 1000 rpm for three minutes was found to be best in purifying Piper nigrum protoplasts. For purifying Piper colubrinum protoplasts, 600 rpm for three minutes was found optimum. The protocol developed for protoplast isolation in Piper species can be used for biotechnological means like somatic hybridization between the two and gene transfer to develop foot rot resistant black pepper lines.

This practical assignment deals with cost benefit analysis, and gives a clear picture of concepts of cost benefit analysis in determining the worth of an enterprise.

PURPOSE

 To make the students familiar with the concept of cost benefit analysis in determining the worth of an enterprise.

 To impart the knowledge and skill required to compute the cost benefit analysis process effectively for assessing the economic viability of an enterprise.

4.1. Synthetic varieties

Produced by crossing in all combinations, a number of lines that combine well with each other.

There are number of diseases which attacks crop plants. Therefore It is mandatory to classify plant disease into more manageable and more specific group based on several criteria for easy and better understanding. Let us discuss one by one.

1. On the basis of type of infection

On the basis of type of infection disease can be classified into two types

7.1. Black Gill Disease (in Shrimps) causing fungi

Fusarium spp

The affected prawns show brown to black spots on the gills. In acute cases gills may completely become brown or black with atrophy and necrosis (Fig. 192).

7.2. Saprolegniasis disease causing fungi

Saprolegnia

Saprolegniasis is a fungal disease of fish and fish eggs, most commonly caused by the Saprolegnia species called “water molds.” They are common in fresh or brackish water. Saprolegnia can grow at temperatures ranging from 0° to 35°C but seem to prefer temperatures of 15° to 30°C. The disease fungus attack an existing injury on the fish and spread to healthy tissue. Poor water quality (for example, water with low circulation, low dissolved oxygen, or high ammonia) and high organic loads, including the presence of dead eggs, are often associated with Saprolegnia infections.

Community Development concepts

The United Nations defines community development as “a process where community members come together to take collective action and generate solutions to common problems. It is a broad term given to the practices of civic leaders, activists, involved citizens and professionals to improve various aspects of communities, typically aiming to build stronger and more resilient local communities.

Community development is a process where community members come together to take collective action and generate solutions to common problems. Community wellbeing (economic, social, environmental and cultural) often evolves from this type of collective action being taken at a grassroots level.

Ensuring the health and well-being of your pet dog is a top priority for every responsible pet owner. Understanding common diseases that affect dogs and taking preventive measures can significantly improve their quality of life and longevity. Here’s an overview of some prevalent canine diseases and how to prevent them:

1. Parvovirus (Parvo)

• Parvovirus is a highly contagious viral disease that affects dogs, especially puppies.

• Symptoms include severe vomiting, diarrhea (often bloody), lethargy, and dehydration.

• Prevention: Vaccination is the most effective way to prevent parvovirus. Puppies should receive a series of vaccinations starting at 6-8 weeks of age, with boosters every few weeks until they are 16-20 weeks old.