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Salt Intrusion, Tides and Mixing in Multi-Channel Estuaries: PhD: UNESCO-IHE Institute, Delft
by Anh Duc NguyenMulti-channel estuaries, such as the Mekong Delta in Vietnam and the Scheldt in the Netherlands, have characteristics of both the river and the sea, forming an environment influenced by tidal movements of the sea and freshwater flow of the river. This study discusses a predictive analytical approach for salinity intrusion and discharge estimate in multi-channel estuaries. The new approach agrees with 1-D hydrodynamic models and observations, indicating its applicability in practice. It has successfully developed a new theory and a new equation to quantify tidal pumping due to ebb-flood channel residual circulation and the related salt dispersion.
Salt Marshes: Function, Dynamics, and Stresses
by Duncan M. FitzGerald Zoe J. HughesSalt marshes are highly dynamic and important ecosystems that dampen impacts of coastal storms and are an integral part of tidal wetland systems, which sequester half of all global marine carbon. They are now being threatened due to sea-level rise, decreased sediment influx, and human encroachment. This book provides a comprehensive review of the latest salt marsh science, investigating their functions and how they are responding to stresses through formation of salt pannes and pools, headward erosion of tidal creeks, marsh-edge erosion, ice-fracturing, and ice-rafted sedimentation. Written by experts in marsh ecology, coastal geomorphology, wetland biology, estuarine hydrodynamics, and coastal sedimentation, it provides a multidisciplinary summary of recent advancements in our knowledge of salt marshes. The future of wetlands and potential deterioration of salt marshes is also considered, providing a go-to reference for graduate students and researchers studying these coastal systems, as well as marsh managers and restoration scientists.
Salt Stress in Plants
by Parvaiz Ahmad M.N.V. Prasad M. M. AzoozEnvironmental conditions and changes, irrespective of source, cause a variety of stresses, one of the most prevalent of which is salt stress. Excess amount of salt in the soil adversely affects plant growth and development, and impairs production. Nearly 20% of the world's cultivated area and nearly half of the world's irrigated lands are affected by salinity. Processes such as seed germination, seedling growth and vigour, vegetative growth, flowering and fruit set are adversely affected by high salt concentration, ultimately causing diminished economic yield and also quality of produce. Most plants cannot tolerate salt-stress. High salt concentrations decrease the osmotic potential of soil solution, creating a water stress in plants and severe ion toxicity. The interactions of salts with mineral nutrition may result in nutrient imbalances and deficiencies. The consequence of all these can ultimately lead to plant death as a result of growth arrest and molecular damage. To achieve salt-tolerance, the foremost task is either to prevent or alleviate the damage, or to re-establish homeostatic conditions in the new stressful environment. Barring a few exceptions, the conventional breeding techniques have been unsuccessful in transferring the salt-tolerance trait to the target species. A host of genes encoding different structural and regulatory proteins have been used over the past 5-6 years for the development of a range of abiotic stress-tolerant plants. It has been shown that using regulatory genes is a more effective approach for developing stress-tolerant plants. Thus, understanding the molecular basis will be helpful in developing selection strategies for improving salinity tolerance. This book will shed light on the effect of salt stress on plants development, proteomics, genomics, genetic engineering, and plant adaptations, among other topics. The book will cover around 25 chapters with contributors from all over the world.
Salt Stress, Microbes, and Plant Interactions: Volume 1
by Mohd Sayeed AkhtarThis book offers an overview of salt stress, which has a devastating effect on the yields of various agricultural crops around the globe. Excessive salts in soil reduce the availability of water, inhibit metabolic processes, and affect nutrient composition, osmotic balance, and hydraulic conductivity. Plants have developed a number of tolerance mechanisms, such as various compatible solutes, polyamines, reactive oxygen species and antioxidant defense mechanisms, ion transport and compartmentalization of injurious ions. The exploitation of genetic variation, use of plant hormones, mineral nutrients, soil microbe interactions, and other mechanical practices are of prime importance in agriculture, and as such have been the subject of multidisciplinary research. Covering both theoretical and practical aspects, the book provides essential physiological, ecological, biochemical, environmental and molecular information as well as perspectives for future research. It is a valuable resource for students, teachers and researchers and anyone interested in agronomy, ecology, stress physiology, environmental science, crop science and molecular biology.
Salt Stress, Microbes, and Plant Interactions: Volume 2
by Mohd Sayeed AkhtarThis book offers an overview of salt stress, which has a devastating effect on the yields of various agricultural crops around the globe. Excessive salts in soil reduce the availability of water, inhibit metabolic processes, and affect nutrient composition, osmotic balance, and hydraulic conductivity. Plants have developed a number of tolerance mechanisms, such as various compatible solutes, polyamines, reactive oxygen species and antioxidant defense mechanisms, ion transport and compartmentalization of injurious ions. The exploitation of genetic variation, use of plant hormones, mineral nutrients, soil microbe interactions, and other mechanical practices are of prime importance in agriculture, and as such have been the subject of multidisciplinary research. Covering both theoretical and practical aspects, the book provides essential physiological, ecological, biochemical, environmental and molecular information as well as perspectives for future research. It is a valuable resource for students, teachers and researchers and anyone interested in agronomy, ecology, stress physiology, environmental science, crop science and molecular biology.
Salt Tectonics
by Martin P. A. Jackson Michael R. HudecSalt tectonics is the study of how and why salt structures evolve and the three-dimensional forms that result. A fascinating branch of geology in itself, salt tectonics is also vitally important to the petroleum industry. <P><P>Covering the entire scale from the microscopic to the continental, this textbook is an unrivaled consolidation of all topics related to salt tectonics: evaporate deposition and flow, salt structures, salt systems, and practical applications. <P><P>Coverage of the principles of salt tectonics is supported by more than 600 color illustrations, including 200 seismic images captured by state-of-the-art geophysical techniques and tectonic models from the Applied Geodynamics Laboratory at the University of Texas. <P><P>These combine to provide a cohesive and wide-ranging insight into this extremely visual subject. This is the definitive practical handbook for professional geologists and geophysicists in the petroleum industry, an invaluable textbook for graduate students, and a reference textbook for researchers in various geoscience fields.
Salt Water Intrusion
by Samuel F. AtkinsonThis book provides a summary of the status and potential for salt water intrusion into ground water in the contiguous united states. While the focus is on resultant limitation in the agricultural usage of ground water, the book is not limited to this singular limitation in resource usage.
Salt and Drought Stress Tolerance in Plants: Signaling Networks and Adaptive Mechanisms (Signaling and Communication in Plants)
by Mirza Hasanuzzaman Mohsin TanveerThis book presents various aspects of salt and drought stress signaling in crops, combining physiological, biochemical, and molecular studies. Salt and drought stress are two major constraints on crop production worldwide. Plants possess several mechanisms to cope with the adverse effects of salt and drought. Among these mechanisms, stress signaling is very important, because it integrates and regulates nuclear gene expression and other cellular activities, which can help to restore cellular homeostasis. Accordingly, understanding the signaling cascades will help plant biologists to grasp the tolerance mechanisms that allow breeders to develop tolerant crop varieties. This book is an essential resource for researchers and graduate students working on salt and drought stress physiology and plant breeding.
Salt-affected Soils and Marginal Waters: Global Perspectives and Sustainable Management
by Ranbir ChhabraThis book presents systematic scientific appraisal, classification, genesis and viable technologies for reclamation and management of salt-affected soils and marginal quality waters across India and several other countries. Nature, solubility and geo-chemical mobility of salts have been provided as basis for the development of alkali and saline soils and groundwaters under specific agro-hydro-ecological regions. Chemical amendment (gypsum) based reclamation technology of alkali soils and related pre and post-reclamation water, nutrient and crop management interventions, including re-sodification issues have been comprehensively addressed. Features and operational guidelines of surface, subsurface, vertical and bio-drainage systems have been thoroughly discussed; likewise, amelioration of irrigation induced saline soils in inland and coastal regions and preventive measures for control of salinity and waterlogging along with environmental trade-offs. Practical approaches for amelioration and judicious use of saline, alkali, high SAR- saline and waste waters have been synthesized for different cropping and agro- forestry systems. Emerging issues on use of industrial by-products as amendments for alkali soils, physiological aspects of salt resistance, anatomical and biochemical mechanism of submergence tolerance, specific ion effects of poor quality waters, crop diversification, groundwater recharge, rejuvenation of tsunami affected coastal soils, safety against occurrence of poisonous gas in tube well pits, paddy straw burning and others have been adequately deliberated upon. Combining scientific principles with field experiences, the book is expected to serve as a useful knowledge base for research workers, teachers and students of soil science, agronomy, plant breeding, forestry, irrigation engineering, extension workers, environmentalists and planners associated with reclamation and management of salt affected soils and waters on sustainable basis in developing and developed countries.
Salts of Amino Acids
by Michel Fleck Aram M. PetrosyanOver the last decades, amino acids have been found to be of importance in many fields of science. Apart from their biological function, this family of organic compounds has been employed in the synthesis of a vast variety of salts, with impact on areas such as materials science, pharmaceutical or physical research. This covers a wide range, from the discovery of important ferroelectrics or non-linear optical materials to nutrients, flavor enhancers or drugs. This book describes amino acids and their salts with cations, anions and inorganic compounds from a chemical, physical and crystallographical point of view. Additional data on structural properties, crystal growth and the relation of structure and physical properties of amino acid salts is discussed.
Salvador Luria: An Immigrant Biologist in Cold War America
by Rena SelyaThe life of Nobel-winning biologist Salvador Luria, whose passion for science was equaled by his commitment to political engagement in Cold War America.Blacklisted from federal funding review panels but awarded a Nobel Prize for his research on bacteriophage, biologist Salvador Luria (1912–1991) was as much an activist as a scientist. In this first full-length biography of Luria, Rena Selya draws on extensive archival research; interviews with Luria&’s family, colleagues, and students; and FBI documents obtained through the Freedom of Information Act to create a compelling portrait of a man committed to both science and society.In addition to his work with viruses and bacteria in the 1940s, Luria broke new ground in molecular biology and cancer research from the 1950s to the 1980s and was a leader in calling for scientists to accept an educational and advisory responsibility to the public. In return, he believed, the public should rely on science to strengthen social and political institutions.Luria was born in Italy, where the Fascists came to power when he was ten. He left Italy for France due to the antisemitic Race Laws of 1938, and then fled as a Jewish refugee from Nazi Europe, making his way to the United States. Once an American citizen, Luria became a grassroots activist on behalf of civil rights, labor representation, nuclear disarmament, and American military disengagement from the Vietnam and Gulf Wars. Luria joined the MIT faculty in 1960 and was the founding director of the Center for Cancer Research. Throughout his life he remained as passionate about his engagement with political issues as about his science, and continued to fight for peace and freedom until his death.
Salvage Logging and Its Ecological Consequences
by Jerry F. Franklin David B. Lindenmayer Philip J. BurtonSalvage logging--removing trees from a forested area in the wake of a catastrophic event such as a wildfire or hurricane--is highly controversial. Policymakers and those with an economic interest in harvesting trees typically argue that damaged areas should be logged so as to avoid "wasting" resources, while many forest ecologists contend that removing trees following a disturbance is harmful to a variety of forest species and can interfere with the natural process of ecosystem recovery. Salvage Logging and Its Ecological Consequences brings together three leading experts on forest ecology to explore a wide range of issues surrounding the practice of salvage logging. They gather and synthesize the latest research and information about its economic and ecological costs and benefits, and consider the impacts of salvage logging on ecosystem processes and biodiversity. The book examines * what salvage logging is and why it is controversial* natural and human disturbance regimes in forested ecosystems* differences between salvage harvesting and traditional timber harvesting* scientifically documented ecological impacts of salvage operations* the importance of land management objectives in determining appropriate post-disturbance interventions Brief case studies from around the world highlight a variety of projects, including operations that have followed wildfires, storms, volcanic eruptions, and insect infestations. In the final chapter, the authors discuss policy management implications and offer prescriptions for mitigating the impacts of future salvage harvesting efforts. Salvage Logging and Its Ecological Consequences is a "must-read" volume for policymakers, students, academics, practitioners, and professionals involved in all aspects of forest management, natural resource planning, and forest conservation.
Salvaging Empire: Sovereignty, Natural Resources, and Environmental Science in the South Atlantic
by James J. BlairSalvaging Empire probes the historical roots and current predicaments of a twenty-first century settler colony seeking to control an uncertain future through resource management and environmental science. Four decades after a violent 1982 war between the United Kingdom and Argentina reestablished British authority over the Falkland Islands (Las Malvinas in Spanish), a commercial fishing boom and offshore oil discoveries have intensified the sovereignty dispute over the South Atlantic archipelago. Scholarly literature on the South Atlantic focuses primarily on military history of the 1982 conflict. However, contested claims over natural resources have now made this disputed territory a critical site for examining the wider relationship between imperial sovereignty and environmental governance. James J. A. Blair argues that by claiming self-determination and consenting to British sovereignty, the Falkland Islanders have crafted a settler colonial protectorate to extract resources and extend empire in the South Atlantic. Responding to current debates in environmental anthropology, critical geography, Atlantic history, political ecology, and science and technology studies, Blair describes how settlers have asserted indigeneity in dynamic relation with the environment. Salvaging Empire uncovers the South Atlantic's outsized importance for understanding the broader implications of resource management and environmental science for the geopolitics of empire.
Salvia Biotechnology
by Vasil Georgiev Atanas PavlovThe genus Salvia represents nearly 1,000 species that are widely distributed around the world. It is the largest in the Lamiaceae family. Traditionally, infusions of Salvia species have been widely used to treat oral inflammation, throat and headaches, and digestive disturbances in various folklore- and ethno-medicine practices worldwide. The antispasmodic, antiseptic and hypoglycemic effects of their extracts have been recognized by the ancient healers a long time ago before the development of modern medicine. With the advances in phytochemistry and pharmacology, terpenes, polyphenols and volatile compounds have been recognized as the source of bioactivity in Salvia extracts. Nowadays, because of their valuable pharmaceutical and nutraceutical properties, many Salvia species have been widely used as ingredients in food, pharmacy and cosmetic industries. The economic importance of Salvia plants continues to increase, following closely the growing interest to the concept for modern healthy lifestyle, based on prevention by consuming quality foods and nutraceutical supplements of natural origin. However, the growing demand has led to overexploitation of natural habitats and in the last few years many wild growing Salvia species have shrunk or fallen under threat. Obviously, to deal with that problem and to prevent ecological crisis, there is an urgent need for alternative, renewable sources of Salvia biomass. Plant biotechnology can provide a wide range of tools for development of economically feasible continuous production of standardized valuable phytochemicals. Plant in vitro culture technology is a powerful method for continuous production of plant secondary metabolites under controlled conditions, recently adapted to various Salvia species. Salvia in vitro systems are harmless to natural plant populations and can be grown independently of environmental factors, geographical latitude, climatic change, and seasonal variations. Several bioactive metabolites from rare and endangered Salvia plants can be produced by employing different plant in vitro systems. However, the researches on development of large scale biotechnology, based on Salvia in vitro systems, are still in early stages and many points still have to be addressed before the commercialization to take place. In this book we intend to summarize the recent achievements in research with Salvia in vitro systems as biological matrixes for the production of pharmaceutically important secondary metabolites. Further we invited leading experts to present their recent studies on phytochemistry, ethnobotanical and ethnophamacological aspects of genus Salvia. Safety and legal issues related to implementation of Salvia plants and in vitro cultures extracts in foods, cosmetics and pharmaceutical products will be discussed as well.
Sam Goudsmit and the Hunt for Hitler's Atom Bomb
by Martijn Van CalmthoutThe first biography in English of a leading Dutch American physicist, who discovered the subatomic property of "spin" and spearheaded the search for Hitler's atom bomb as World War II came to an end.This engaging biography of an important Dutch physicist brings to light his significant scientific contributions and remarkable life story. Based on recently released archives and material from Goudsmit's daughter Esther, science journalist Martijn van Calmthout has reconstructed a life marked by both brilliance and tragedy.As a young man Sam Goudsmit came to international attention when he and a colleague published a seminal paper that introduced the property of electron spin into atomic theory. This discovery helped to remove remaining questions about atomic theory and brought him into contact with the likes of Einstein, Heisenberg, and other leading physicists of the early 20th century. In 1927, he was offered a position at the University of Michigan and moved with his wife to the United States. When the Nazis invaded the Netherlands, Goudsmit, a Jew, feared for the lives of his parents and other family members still in Holland. His attempts to get his German colleague Werner Heisenberg to intervene on their behalf proved fruitless. Toward the end of World War II, he was recruited by the Department of Defense as the scientific leader of the co-called Alsos mission, whose task was to search for evidence of German atom-bomb development. The team eventually found stores of uranium ore and a nuclear reactor, among other evidence. While in Europe, Goudsmit had an opportunity to return to The Hague, his hometown. There in the rubble of his parent's house, he discovered that they had been deported to Auschwitz.After the war, he returned to the United States and became the editor of Physical Review and Physical Review Letters; the latter is a leading physics journal to this day. But guilt over his failure to save his parents haunted him for the rest of his life.This is a biography that in part reads like a thriller and restores long-overdue recognition to an important 20th-century physicist.
Sam the Man & the Cell Phone Plan (Sam the Man #5)
by Frances O'Roark DowellSam Graham wants a cell phone to help him with his research, but when his parents say no, he has to come up with another way to keep all the info he needs in his pocket in this hilarious fifth chapter book in the Sam the Man series from Frances O’Roark Dowell.Here are the facts: Sam Graham is an information man. But to get information, you need to do research. You never know when you’ll need an urgent piece of info—like, say, the number for a chicken emergency hotline—so a resource for instant research is a must! This is why Sam needs a cell phone. Unfortunately, Mom and Dad disagree. So, Sam has to come up with a plan. But what is small enough to fit in your pocket and can hold all the information you need? Sam will have to go old-school with his latest plan and use a handy notebook instead. Luckily, retro is in, and a la Nick in Andrew Clements’s Frindle, Sam might just start the latest trend!
Samajik Vigyan Bhugol Bhag 2 class 7 - S.C.E.R.T. Raipur - Chhattisgarh Board: सामाजिक विज्ञान भूगोल भाग 2 कक्षा 7 - एस.सी.ई.आर.टी. रायपुर - छत्तीसगढ़ बोर्ड
by Raipur C. G. Rajya Shaikshik Anusandhan Aur Prashikshan Parishadसामाजिक विज्ञान भूगोल भाग 2 पाठ्यपुस्तक कक्षा 7 वीं का राज्य शैक्षिक अनुसंधान और प्रशिक्षण परिषद् छत्तीसगढ़ रायपुर ने हिंदी भाषा में प्रकाशित किया गया है, इस पाठ्यपुस्तक में दस अध्याय दिए गए है, इसमें पर्यावरण, हमारी पृथ्वी के अंदर और हमारी बदलती पृथ्वी, वायु, जल, प्राकृतिक वनस्पति एवं वन्य जीवन, मानवीय पर्यावरण : बस्तियाँ, परिवहन एवं संचार, मानव-पर्यावरण अन्योन्यक्रिया : उष्णकटिबंधीय एवं उपोष्ण प्रदेश, शीतोष्ण घासस्थलों में जीवन, रेगिस्तान में जीवन और परिशिष्ट आदी के बारे में बताया गया है। सामाजिक भूगोल के अंतर्गत छत्तीसगढ़ राज्य के चयनित संदर्भो की चर्चा पाठ्यपुस्तक में की गई है।
Samajik Vigyan Bhugol Bhag 2 class 8 - S.C.E.R.T. Raipur - Chhattisgarh Board: सामाजिक विज्ञान भूगोल भाग 2 कक्षा 8 - एस.सी.ई.आर.टी. रायपुर - छत्तीसगढ़ बोर्ड
by Raipur C. G. Rajya Shaikshik Anusandhan Aur Prashikshan Parishadसामाजिक विज्ञान भूगोल भाग 2 पाठ्यपुस्तक कक्षा 8वी का राज्य शैक्षिक अनुसंधान और प्रशिक्षण परिषद् छत्तीसगढ़ रायपुर ने हिंदी भाषा में प्रकाशित किया गया है, इस पाठ्यपुस्तक में छह अध्याय दिये गए है। इस पाठ्यपुस्तक में संसाधन, भूमि, मृदा, जल, प्राकृतिक वनस्पति और वन्य जीवन संसाधन, खनिज और शक्ति संसाधन, कृषि, उद्योग, मानव संसाधन आदी के बारे अभ्यास किया गया है। कल्पनाशील गतिविधियों और सवालों की मदद से, सीखने और सीखने के दौरान अनुभवों पर विचार करने का अवसर दिया गया हैं। यह पाठ्यपुस्तक सोच-विचार और विस्मय, छोटे समूहों में विचार-विमर्श और ऐसी गतिविधियों को प्राथमिकता देती है जिन्हें करने के लिए व्यावहारिक अनुभवों की आवश्यकता होती है।
Samajik Vigyan class 10 - S.C.E.R.T. Raipur - Chhattisgarh Board: सामाजिक विज्ञान कक्षा 10 - एस.सी.ई.आर.टी. रायपुर - छत्तीसगढ़ बोर्ड
by Raipur C. G. Rajya Shaikshik Anusandhan Aur Prashikshan Parishadसामाजिक विज्ञान पाठ्यपुस्तक कक्षा 10 वीं का राज्य शैक्षिक अनुसंधान और प्रशिक्षण परिषद् छत्तीसगढ़ रायपुर ने हिंदी भाषा में प्रकाशित किया गया है, इस पाठ्यपुस्तक में अध्ययन इतिहास, राजनीति विज्ञान, भूगोल और अर्थशास्त्र जैसी अलग-अलग इकाईयों के रूप में न होकर समग्र सामाजिक विज्ञान के रूप में प्रस्तुत किया जा रहा है। पाठ्यपुस्तक में राष्ट्रीय पाठ्यचर्या के चार शैक्षिक स्तंभों की प्रमुख अवधारणाओं को रेखांकित किया गया है जो विद्यार्थियों में रचनात्मक, ज्ञान एवं कौशल को बढ़ावा देते हैं। सामाजिक विज्ञान से हमें मानवीय मूल्यों और विश्व के प्रति सकारात्मक दृष्टिकोण और पूर्व में घटित घटनाओं को न दोहराते हुए उससे सीख लेने की शिक्षा मिलती है। देश की अर्थ व्यवस्था में हमारी भागीदारी सुनिश्चित करने का व्यापक दृष्टिकोण तथा सुशासन व्यवस्था की समझ विकसित करने का कार्य सामाजिक विज्ञान करता है। पाठ में प्रयोगात्मक और परिवेशीय आयामों को सम्मिलित किया गया है।
Samajik Vigyan class 7 - GSTB: સામજિક વિજ્ઞાન ધોરણ૭ - જીએસટીબી
by Gstbપ્રસ્તુત પાઠ્યપુસ્તક ગુજરાત શૈક્ષણિક સંશોધન અને તાલીમ પરિષદ, ગાંધીનગર દ્વારા તૈયાર થયેલ અને રાજય સરકાર તરફથી મંજૂર કરવામાં આવેલ નવી અભ્યાસક્રમ અનુસાર તૈયાર કરવામાં આવેલ સામાજિક વિજ્ઞાન, ધોરણ વિષયનું અજમાયશી પાઠ્યપુસ્તક છે. જેમાં ૧૮ પાઠ આપેલ છે.
Samanya Vigyan Railway Group D (Competitive Exam)
by Indic TrustThis book is prepared to improve the knowledge of General Science for the examination of the Railway Group D. Notes are in such a way that the students can learn and revise fast during examination.
Samanya Vigyan class 6 - Maharashtra Board: सामान्य विज्ञान ६वीं कक्षा - महाराष्ट्र बोर्ड
by Maharashtra Rajya Pathyapustak Nirmiti Va Abhysakram Sanshodhan Mandal Pune"सामान्य विज्ञान" छठी कक्षा की पाठ्यपुस्तक है, जिसमें विज्ञान के मूलभूत सिद्धांतों को सरल भाषा में समझाया गया है। यह पुस्तक प्राकृतिक संसाधनों, सजीव और निर्जीव वस्तुओं, ऊर्जा, बल, गति, प्रकाश, ध्वनि, पर्यावरण, जैव विविधता, तथा ब्रह्मांड से संबंधित विषयों को कवर करती है। इसमें वैज्ञानिक दृष्टिकोण विकसित करने के लिए प्रायोगिक गतिविधियाँ, अवलोकन और विश्लेषण को प्रमुखता दी गई है। पुस्तक का उद्देश्य विद्यार्थियों में विज्ञान के प्रति रुचि जगाना और उन्हें दैनिक जीवन में वैज्ञानिक अवधारणाओं को समझने तथा लागू करने के लिए प्रेरित करना है।
Samanya Vigyan class 6 - Maharashtra Board: सामान्य विज्ञान इयत्ता सहावी - महाराष्ट्र बोर्ड
by Maharashtra Rajya Pathyapustak Nirmiti Va Abhysakram Sanshodhan Mandal Puneसामान्य विज्ञान इयत्ता सहावी हे महाराष्ट्र राज्य पाठ्यपुस्तक निर्मिती व अभ्यासक्रम संशोधन मंडळ, पुणे यांनी या पुस्तकाचे लेखन केले आहे तसेच श्री. विवेक उत्तम गोसावी यांनी हे पुस्तक मराठी भाषेमध्ये प्रकाशित केले आहे. या पाठ्यपुस्तकात सोळा प्रकरण आणि त्याचे स्वाध्याय दिलेले आहेत. या पाठ्यपुस्तकात सामान्य विज्ञान विषयाच्या अपेक्षित क्षमता नमूद केल्या आहेत. या क्षमतांच्या अनुषंगाने पाठ्यपुस्तकातील आशयाची नावीन्यपूर्ण मांडणी करण्यात आली आहे. विद्यार्थ्यांनी निरीक्षण करणे, कृतींच्या आधारे माहिती मिळविणे, माहितीचे संकलन करणे व त्यानुसार वर्गीकरण, अनुमान करणे, निष्कर्ष काढणे इत्यादींवर आधारित कृती, उपक्रम व आशयासाठी पुस्तकात विविध शीर्षकांचा वापर केला आहे. पुस्तकात दिलेली पूरक माहिती विद्यार्थ्यांचे अध्ययन अधिक परिणामकारक करू शकेल.
Samanya Vigyan class 7 - Maharashtra Board: सामान्य विज्ञान ७वीं कक्षा - महाराष्ट्र बोर्ड
by Maharashtra Rajya Pathyapustak Nirmiti Va Abhysakram Sanshodhan Mandal Pune‘सामान्य विज्ञान’ सातवीं कक्षा के विद्यार्थियों के लिए तैयार की गई एक पाठ्यपुस्तक है, जो विज्ञान की मौलिक अवधारणाओं को सरल भाषा में प्रस्तुत करती है। इसमें सजीव और निर्जीव वस्तुओं का अध्ययन, वनस्पतियों और प्राणियों में अनुकूलन, कोशिका संरचना, पाचन तंत्र, ऊष्मा, ध्वनि, प्रकाश, चुंबकीय क्षेत्र, ऊर्जा के स्रोत, भौतिक और रासायनिक परिवर्तन, आपदा प्रबंधन और पर्यावरणीय संतुलन जैसे विषयों को शामिल किया गया है। पुस्तक का उद्देश्य वैज्ञानिक दृष्टिकोण विकसित करना, प्रायोगिक एवं अवलोकन कौशल को बढ़ावा देना और छात्रों को उनके दैनिक जीवन में विज्ञान के अनुप्रयोगों से परिचित कराना है। विभिन्न प्रयोगों, गतिविधियों और प्रश्नोत्तरी के माध्यम से बच्चों को विज्ञान को समझने और आत्मसात करने का अवसर मिलता है। यह पुस्तक विद्यार्थियों को तार्किक सोच, समस्या समाधान और खोजपरक दृष्टि विकसित करने के लिए प्रेरित करती है, जिससे वे अपने आसपास की दुनिया को वैज्ञानिक दृष्टि से समझ सकें और जागरूक नागरिक बन सकें।
Samanya Vigyan class 7 - Maharashtra Board: सामान्य विज्ञान इयत्ता सातवी - महाराष्ट्र बोर्ड
by Maharashtra Rajya Pathyapustak Nirmiti Va Abhysakram Sanshodhan Mandal Puneसामान्य विज्ञान इयत्ता सातवी हे महाराष्ट्र राज्य पाठ्यपुस्तक निर्मिती व अभ्यासक्रम संशोधन मंडळ, पुणे यांनी या पुस्तकाचे लेखन केले आहे तसेच श्री. विवेक उत्तम गोसावी यांनी हे पुस्तक मराठी भाषेमध्ये प्रकाशित केले आहे. विज्ञानाच्या या पाठ्यपुस्तकाचा मूळ हेतू “समजून घ्या व इतराना समजवा” हा आहे. 'निरोक्षण व चर्चा करा', 'जरा डोके चालवा', 'शाधा पाहू', 'विचार करा' अशा अनेक कृतीतून तुम्ही विज्ञान शिकणार आहात. या सर्व कृतीमध्ये भाग घ्या. थोडे आठवा', 'सागा पाहू' या कृतींचा उपयाग उजळणीसाठी करा. पाठ्यपुस्तकात 'करून पहा', 'करून पाहूया' अशा अनेक कृताचा आणि प्रयागाचा समावेश केलेला आहे. या विविध कृती, प्रयाग, निरीक्षणे तुम्ही स्वतः काळजीपूर्वक करा. तसेच आवश्यक तेथे तुमच्या शिक्षकांची, पालकांची व वर्गातील सहकाऱ्यांची मदत घ्या. पाठांमध्ये काही ठिकाणी तुम्हांला माहिती शोधावी लागल, तो शोधण्यासाठी ग्रंथालय, तत्रज्ञान जस इंटरनेट याचीही मदत घ्या.