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Author:
Publisher:
ISBN:
Category : Marine engineering
Languages : en
Pages : 554
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Book Description
Author:
Publisher:
ISBN:
Category : Marine engineering
Languages : en
Pages : 554
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Book Description
Author: Wolf Mountain Press
Publisher: Independently Published
ISBN: 9781092419673
Category : Juvenile Nonfiction
Languages : en
Pages : 112
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Book Description
Our Captain Rabbit Drawing Book features Cute Cover of Captain Rabbit skippering his boat, scanning the sea with his telescope looking for his friends; Octopus, Sea Turtle, Whale, Jelly Fish and a school of colorful fish swimming in the Ocean. Our notebook provides plenty of room inside for writing down ideas, notes or experiences. It can easily be used as a notebook, journal or composition book. This paperback notebook is 8.5"x11" and has 110 pages that are wide ruled. Size: Large 8.5"x11" Page Count: 110 pages (55 sheets) Inside: Wide ruled on both sides Cover: Soft, Matte Finish Perfect to use for yourself or as a gift for a co-worker, friend or relative for birthdays, anniversaries, or simply to give as a gift any time of the year for a special person.
Author: Erika Kague
Publisher: Frontiers Media SA
ISBN: 2832540562
Category : Medical
Languages : en
Pages : 224
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Book Description
Author: Laura J. Martin
Publisher: Harvard University Press
ISBN: 0674979427
Category : History
Languages : en
Pages : 337
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Book Description
Laura J. Martin examines ecological restoration’s long history. Since the early 1900s, restorationists have confronted vexing philosophical questions: Which states of nature should be restored? Who should choose? Is human-designed wilderness really wild? Restoration work leads us to reimagine nature and the nature of environmental justice.
Author:
Publisher:
ISBN:
Category : Animal industry
Languages : en
Pages : 816
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Book Description
Author:
Publisher:
ISBN:
Category : Advertising, Magazine
Languages : en
Pages : 1018
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Book Description
Author: Fritz Dufour
Publisher: Fritz Dufour
ISBN:
Category : Nature
Languages : en
Pages : 213
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Book Description
This report is a socioeconomic and political analysis of environmental sustainability in terms of the present state of the environment, what we can do to reverse the negative trends, and what the current and potential barriers are. First, it offers a background of the issue through a historical perspective. How we got here has a lot to do with how previous generations behaved towards the environment. Similarly, how we behave will determine the kind of environment future generations will have to contend with. It looks at the dynamics likely to impact the balance of nature. Also, because understanding what is biodiversity and why is it important are essential in order to grasp the concept of sustainability, this report looks at the types of ecosystems that form the biosphere and brings an answer to this important question, “Is the Maximum sustainable yield (MSY) concept a fallacy?” Moreover, the importance of cities is a key factor in environmental sustainability. So, the report shows the pros and cons of cities in both the preservation of the environment and the conservation of its biodiversity. The social, economic, and political analyses use the latest data and views from experts, scientists, and scholars alike and also the views of the common people. The result is that all three levels have positives and negatives and so, none of them should be individually prioritized over the other two. To tackle this dilemma, the report offers an alternative: an inclusive, pluralistic, and global approach which aims at motivating all stakeholders – from rich and poor countries – and people from all walks of life to work together towards a common goal and common interests. Such an approach, says the report should be bottom-up instead of top-down, that is, the needs of local populations, especially those closer to biodiversity, must come first before those of large corporations. However, while in the present and short terms, this approach may be successful, in the long term or a distant future, there are reasons to be skeptical for the environment is constantly changing and generations are different from one another. And that is very important because what constitutes the cornerstone of environmental sustainability is this: the present use of natural resources should not be harmful to future generations. Therefore, the report looks into the future. While acknowledging that, in terms of environmental sustainability, predicting the future is a daunting task – because it is better to think that the future is now – the report shows how we can prepare a soft landing for our great grand-children by laying the groundwork for them. We can accomplish this last task because we still have time.
Author: Ron Tyler
Publisher: University of Oklahoma Press
ISBN: 0806164425
Category : Art
Languages : en
Pages : 313
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Book Description
For nearly half a century, celebrated historian Ron Tyler has researched, interpreted, and exhibited western American art. This splendid volume, gleaned from Tyler’s extensive career of connoisseurship, brings together eight of the author’s most notable essays, reworked especially for this volume. Beautifully illustrated with more than 150 images, Western Art, Western History tells the stories of key artists, both famous and obscure, whose provocative pictures document the people and places of the nineteenth-century American West. The artists depicted in these pages represent a variety of personalities and artistic styles. According to Tyler, each of them responded in unique ways to the compelling and exotic drama that unfolded in the West during the nineteenth century—an age of exploration, surveying, pleasure travel, and scientific discovery. In eloquent and engaging prose, Tyler unveils a fascinating cast of characters, including the little-known German-Russian artist Louis Choris, who served as a draftsman on the second Russian circumnavigation of the globe; the exacting and precise Swiss artist Karl Bodmer, who accompanied Prince Maximilian of Wied on his sojourn up the Missouri River; and the young American Alfred Jacob Miller, whose seemingly frivolous and romantic depictions of western mountain men and American Indians remained largely unknown until the mid-twentieth century. Other artists showcased in this volume are John James Audubon, George Caleb Bingham, Alfred E. Mathews, and, finally, Frederic Remington, who famously sought to capture the last glimmers of the “old frontier.” A common thread throughout Western Art, Western History is the important role that technology—especially the development of lithography—played in the dissemination of images. As the author emphasizes, many works by western artists are valuable not only as illustrations but as scientific documents, imbued with cultural meaning. By placing works of western art within these broader contexts, Tyler enhances our understanding of their history and significance.
Author: Rosanna Chianese
Publisher: Frontiers Media SA
ISBN: 2889457362
Category :
Languages : en
Pages : 120
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Book Description
In 1996 a cDNA called KISS1 (KI in reference to the place of discovery-Hershey Pennsylvania, home of the famous Hershey Chocolate Kisses- and SS as suppressor sequence) was identified in non-metastatic melanoma cell lines. Its 54 amino-acid product, Kisspeptin-54 (Kp-54), was originally called metastin for its ability to inhibit cancer metastasis through the activation of a G coupled receptor, previously known as GPR54 and currently renamed the Kisspeptin receptor (KISS1R). Shorter active peptides all capable of binding to KISS1R have been identified and the physiological activities of these Kisspeptins are now known to extend not only to the suppression of metastasis. Kisspeptins currently represent evolutionarily conserved biological modulators, with a recognized role in the central control of sex maturation, reproduction and fertility. Consequently, the focus on the central role of the Kisspeptins has led to neglecting their possible activities in peripheral tissues. Increasing data reveals that Kisspeptins and KISS1R have a wider expression and possibly a broader spectrum of action in several peripheral tissues such as the gonads, adipose tissue, and liver with direct consequences on gamete quality and fertility rate, pregnancy, energy homeostasis and body weight control. In this respect, the Kisspeptin system may represent a promising prognostic/diagnostic biomarker and therapeutic target for cancer and other human diseases such as infertility and metabolic disorders. This Research Topic provides a comprehensive picture of the recognized and the emerging role of the Kisspeptin system. Such a volume is very timely and useful to the wide community of researchers in the field and for the scientific community at large.
Author: Brian Silliman
Publisher: Frontiers Media SA
ISBN: 283253659X
Category : Science
Languages : en
Pages : 313
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Book Description
Worldwide, marine ecosystems have been lost and degraded due to anthropogenic disturbances. For example, oyster reefs have declined by at least ∼85%, coral reefs by ∼19%, seagrasses by ∼29%, North American salt marshes by ∼42%, and mangroves by ∼35% from the early 19th century. Deepwater reefs and deep-sea vents are not immune and have also been reduced in extent in many areas. Factors driving these losses include habitat destruction, pollution, invasive species, overfishing, trawling, mining and, more recently, climate change effects, such as ocean warming, species range changes and acidification. These habitat declines are occurring at a time when marine waters are being used at or near their maximum productive capacity to meet the contemporary needs of an ever-increasing human population. Because coastal and marine ecosystems generate some of the richest biodiversity hotspots on Earth, and provide critical ecosystem services, including storm protection, fisheries production, and carbon storage, over 1 billion US dollars have been spent globally in an attempt to halt and reverse observed declines. Early conservation efforts aimed at protecting these valuable and threatened habitats focused on reducing human impacts and physical stressors. However, with habitat degradation continuing and sometimes increasing in rate, it is now clear conservation alone will not be sufficient to protect and reestablish coastal ecosystems. Habitat restoration, although in existence for many decades, has recently been elevated as a new primary strategy to stem and even reverse coastal habitat loss. The call for increasing investment in restoration efforts has emerged with significant advances in propagule rearing and dispersion of habitat-forming organisms (e.g., oysters, seagrasses, corals). In addition, restoration resources are increasingly allocated by governments and/or large corporations with the aim to, for example, fix past landscape engineering efforts that had unintended environmental consequences. Such investments are being made to (i) provide jobs for those unemployed during economic downturns, (ii) restore ecosystems destroyed by natural disasters and stressors, (iii) increase coastal defense in response to increased frequency of intense storms, and/or (iv) compensate for pollution-and development-driven habitat degradation. Conservation practitioners have traditionally been skeptical to invest heavily in restoration at large-scales because of the high cost per area (10,000-5,000,000 US$/ha for coastal vs. 500-5,000 US$/ha for terrestrial systems) to replant coastal ecosystems and/or the high chance that the restored ecosystems will not live long (e.g. outplanted corals). For restoration to be effective and employed as a primary method of coastal conservation at relevant scales, we must improve its efficiency, lower costs and rapidly share and incorporate advances. One crucial step will be to identify when and where restoration attempts have been carried out according to state-of-art ecological theory and gauge their success. Another is generating synthesis studies that focus both within and across ecosystems to identify efficiencies, adaptations and innovations. Work that shows theoretical and methodological innovations in specific ecosystems as well as across systems will be critical to pushing all fields of MER forward. Although there is rapidly increasing interest and investment, the field of marine ecosystem restoration is just beginning to undergo synthesis. Therefore, the aim of this Research Topic is to bring together research contributions to help address this synthesis need, provide a spotlight for recent innovations, enhance our understanding of successful methods in marine ecosystem restoration and promote integration of ecological, sociological and engineering theory into restoration practices.
