bluuebunny/crossref_metadata_2025 huggingface dataset:
Strategies for Survival
Authors: Porter Fronk
Published: September 2024

The authors have attempted to make the significant point that non-Federally recognized Indian tribes in the East have not vanished.'... The essays treat the Okehocking Band of Lenape (Pennsylvania), Wampanoag (Massachusetts and environs), Poospatuck (New York), Nanticoke (Maryland and Delaware), and several Powhatan tribes (Virginia). All of these studies quite appropriately try to substantiate the universal Native commitment to tribal and cultural identity in the face of formidible opposition--certainly the case in the East. There is a good deal of helpful background information, some of this clearly delineating strategies for survival.'... Upper-division graduates and above.?
Health Care Budgeting and Financial Management for Non-Financial Managers
Authors: Ward ,   Jr. William J.
Published: September 2024

The basic premise of this book is that health care non-financial managers need to understand enough about financial management to be successful in their day-to-day activities while not being smothered with details. Ward provides managers with a basic level of financial management principles, including understanding financial statements and ratios, preparing an operating budget, and using financial analysis to help with decision making.

Written in plain English, the text is interspersed with illustrative cases and examples gleaned from more than twenty years of experience in both operational and financial areas and in both staff and management capacities. The text is sophisticated enough to be used by graduate students and practitioners as well as undergraduate programs in health services administration. It is also suited for independent study by professionals seeking to enhance their professional development. Lastly, it is useful as a day-to-day reference for managers in all fields in health care.
Standard Cataloging for School and Public Libraries
Authors: Weihs Jean
Published: September 2024

Designed to introduce cataloging students, beginning catalogers, copy catalogers, and department administrators to cataloging, classification, and indexing principles, this work offers a solid foundation for standard practices of cataloging and bibliographic control in the United States and Canada. The authors examine pertinent issues regarding bibliographic services, including the computerization of bibliographic systems (both large networks and local systems), and they review the major considerations in decision making about cataloging and classification, shelving, and public catalogs. In addition, this edition incorporates recent cataloging rule changes, MARC format integration changes, and other newly approved material. A new chapter on managing the cataloging department has been added, and the index, bibliography, chapter reading lists, and glossary have been updated and expanded. This is the only book on the subject that covers Canadian cataloging practice.
100 Most Popular African American Authors
Authors: Drew Bernard A.
Published: September 2024

Here's a one stop resource, containing 100 profiles of your favorite contemporary African American writers, along with complete lists of their works. Focusing on writers who have made their mark in the past 25 years, this guide stresses African American writers of popular and genre literature-from Rochelle Alers and Octavia Butler, and Samuel Delaney to Walter Mosley, and Omar Tyree, with a few classic literary giants also included. Short profiles provide an overview of the author's life and summarize his or her writing accomplishments. Many are accompanied by black-and-white photos of the author. The biographies are followed by a complete list of the author's published works.

Where can you find information about popular, contemporary African American authors? Web sites can be difficult to locate and unreliable, particularly for some of the newer authors, and their contents are inconsistent and often inaccurate. Although there are a number of reference works on African American writers, the emphasis tends to be on historical and literary authors. Here's a single volume containing 100 profiles of your favorite contemporary African American writers, along with lists of their works. Short profiles provide an overview of the author's life and summarize his or her writing accomplishments. Many are accompanied by black-and-white photos of the author. The biographies are followed by a complete list of the author's published works. Focusing on writers who have made their mark in the past 25 years, this guide covers African American writers of popular and genre literature—from Rochelle Alers, Octavia Butler, and Samuel Delaney to Walter Mosley, Omar Tyree, and Zane. A few classic literary giants who are popular with today's readers are also included—e.g., Maya Angelou, Toni Morrison, and Richard Wright. Readers who want to know more about their favorite African American authors or find other books written by those authors, students researching AA authors for reports and papers, and educators seeking background information for classes in African American literature will find this guide invaluable. (High school and up.)
1980s
Authors: Batchelor Bob , Stoddart Scott F.
Published: September 2024

The eighties are seen by many as a time of excess and extremes. From Boy George to Madonna, metal heads to valley girls, and workout clothes to shoulder pads, many pushed the boundaries of what was was conventional. After a decade of war, disillusionment of the government, advances in civil rights, and disco, Americans became status seekers and shopaholics and the Me generation was born. Twelve narrative chapters describe the decade of decedence and its impact on popular culture including: the AIDS epidemic, preppies,Miami Vice, the Rubik's Cube, E.T., hair bands, the advent of the personal computer, malls, Ronald Reagan, Pac-Man,Cheers, Stephen King, Michael Jackson, the shuttleChallengerexplosion,Bonfire of the Vanities, music videos,Roseanne, the power suit,Less Than Zero, rap music, andThe Cosby Show, among many others.

Chapters on Everyday America and the World of Youth describe the important changes in American society, from Ronald Reagan's War on Drugs, to latch-key kids, to Black Monday. The following ten chapters explore the many aspects of popular culture-everything from advertising to fashion, literature to music, travel to the visual arts-that influenced Americans in the eighties. Supplemental resources include a timeline of important events, an extensive bibliography for further reading and a subject index.
All Things Austen
Authors: Olsen Kirstin
Published: September 2024

Following in the tradition of the critically acclaimedAll Things Shakespeare(Greenwood, 2002), this similarly formatted encyclopedia takes readers from the works of Jane Austen into her world. More than 150 alphabetically arranged entries provide rich and fascinating historical details on the form and function of everyday and obscure objects that are mentioned in Austen's novels. Numerous illustrations accompany the lively and often humorous essays that bring these works of fiction to life.

Students and devotees of Jane Austen will become familiar with what her characters ate, wore, and did for recreation. Well-researched information is presented about domestic items, the social scene, the workplace, the church, special events and rituals, and everyday customs that constituted life in Jane Austen's England.

Readers can find citations of specific works by Austen, or they can look up terms or concepts. A bibliography arranged according to broad subjects lists major works for further reading. Teachers and students will find myriad uses for this reference, while the lively writing will appeal to general readers who want to gaze into Austen's world.
Financial Analysis and the Predictability of Important Economic Events
Authors: Riahi-Belkaoui Ahmed
Published: September 2024

Financial analysis, based on ratio analysis, has been used as a tool for analyzing the financial strength of corporations. Although ratio analysis is generally used as a univariate strategy, the accounting and finance literature has evolved to include multivariate-based models in financial analysis, and these models can be used to explain important economic events and often predict them. Thus, in an exhaustive coverage of the economic events to which they can be applied, Riahi-Belkaoui discusses these models in a way that will have special value to corporate management, financial planners, and to their colleagues in the academic community who specialize in business and economic analysis.
Forecasting and Market Analysis Techniques
Authors: Kress George J. , Snyder John
Published: September 2024

Sales forecasting and market analysis are the cornerstones of the planning process. Yet, these two tasks are usually performed by people with only limited training in either area because most firms do not have full-time forecasters/market analysts. The authors acknowledge this situation and attempt to describe the key techniques for forecasting sales and analyzing markets in a format that meets the needs of an audience with limited quantitative skills. In addition to its basic approach, another strength of this book is that it combines the coverage of two key activities--forecasting and market analysis--that are performed by the same person in most middle-sized (and smaller) firms.

The book's contents and format were designed with two audiences in mind: persons assigned to develop forecasts and market analyses, but who are not specialists in either area, and persons who will be incorporating these results in their planning and decision making. The major portion of the book is devoted to the three basic categories of forecasting models--time series, causal, and judgmental--emphasizing the most widely used models in each category. Special attention is also given to the sources for obtaining the data needed to make forecasts and analyze markets. The latter part of the book describes procedures for developing market and sales potentials, methods for segmenting markets, and some analytic techniques such as conjoint analysis and cluster analysis, gaining increased usage among market analysts.
Halting the Sexual Predators among Us
Authors: Dobbert Duane L.
Published: September 2024

Recently, the National Center for Victims of Crime reported annual figures showing 103,845 children were sexually abused, while in that same year there was a 20% increase in all rape incidents and a 33% increase in sexual assaults. Incarceration and therapy have not reduced the rates, points out this author. The rate of incarceration has increased, but incidence of sex crimes is not waning. Dobbert warns we must all play a vital role to reduce such crimes, by prevention. The seasoned forensic examiner enables us to see life through the sexual predator's eyes, to understand the motives and intentions of people with abnormal and uncontrollable desires. He argues we can create a safer world by removing the opportunity for such people to act on their ideas.

The author clearly explains disorders from exhibitionism to pedophilia, and presents scenes that illustrate precursor behaviors shown by people preparing to act on such disordered thinking. Also illustrated are stalking patterns common to mentally ill people who commit sexual assaults or lust murders, including the activities of Kenneth Bianci, the Hillside Strangler, and Jeffrey Dahmer, whose serial lust homicides horrified the world. Community activists, teachers, principals, police officers, prosecutors, social workers, and students of criminal justice, forensic psychology, and psychopathology will find this volume of interest.
Encyclopedia of Human-Animal Relationships
Authors: Bekoff Marc
Published: September 2024

Humans and animals live together on earth, but as we increasingly reshape ecosystems to accommodate larger populations, technology, and increased consumption, animals are greatly affected. The history of civilization shows that humans have used animals for food, clothing, transportation, making a living, and even companionship, as well as subjects for the arts, literature, and within religious beliefs. Renowned animal behaviorist Marc Bekoff and 300 experts from around the globe provide more than 350 essays that discuss such topics as animals and ecology; animals and global warming; animals as food; animals as pets; animals and diseases; animals in research and in education; animals providing assistance; and the influence of animals in art, religion and philosophy, literature, music, dance, and entertainment. Students and all those wanting a better understanding of the reciprocal connections and interdependence of organisms on the planet will benefit from this fascinating and instructive reference work.

Bekoff and contributors ranging from scientists and researchers in other disciplines to teachers, writers, and artists along with those who work with animals in service, rescue, and training have provided engaging and thought-provoking entries ranging in length from 500 to more than 5,000 words. Each entry in the encyclopedia ends with recommended further resources, which may include books, articles, Web sites, and videos.

The volumes are illustrated with photographs, drawings, charts, and tables. An extensive bibliography, comprehensive index, and classified lists of entries provide extensive access to the contents of the encyclopedia.
Ideologues and Ideologies in Latin America
Authors: Fowler William M.
Published: September 2024

The chapters in this volume provide a varied yet consistent analysis of the ways in which ideologies have been used, misused, or abandoned in Latin America in the twentieth century. The volume offers scholars and students a challenging collection of interpretations of and explanations for the ways in which ideologues and ideologies have played a crucial role in the political development of the continent. And, while illuminating key reasons for the rise and fall of specific ideologies and their repeated betrayal throughout the century—from anarchism to communism, to socialism, to Peronism, to neoliberalism—the volume indicates how much there is still left to learn about the importance of ideological discourse in the mind and polity of Latin America. With chapters examining Mexico, Chile, Cuba, Paraguay, and Argentina, this work will be of interest to all Latin Americanists.
It Came from Outer Space
Authors: Bijlefeld Marjolijn , Burke Robert L.
Published: September 2024

What do anthrax protection, golf clubs, and cordless power tools have in common? Each was invented or improved with technology first developed for the space program. Since NASA's inception 45 years ago, hundreds of everyday devices and products have emerged from the research and development required to put rockets into space and humans on the moon. To expand our knowledge of the universe, scientists and engineers with the space program constantly confront new challenges in vehicle design, life support, communications, and astronaut health and well-being. The solutions to these challenges have often benefited those of us who remain on Earth. This book tells the story of 67 of the most consumer-friendly products born of space-related research.

Discover the fascinating histories of commonplace items that we now take for granted. One model of ergonomic chairs was based on the position of astronauts at rest in Skylab. Improvements in health-rate monitors resulted from the need to track changes in an astronaut's heart rate. Even swimsuits and ballpoints pens have been improved by space technology. This book also includes extensive information on the history of NASA, and on the technology-transfer centers that help make such product improvements happen. Lesson plans and resources offer additional sources of information on this remarkable subject.
Keeping Up with Emerging Technologies
Authors: Hennig Nicole
Published: September 2024

The acceleration of technological change demands that today's information professionals and educators not only be constantly acquiring new knowledge and skills, but also that they cultivate the ability to make sound judgments on which technologies to embrace.

Today's librarians and information specialists know it's imperative that they keep up with new technologies. But not all technologies are equally important, either within the library setting or to library patrons. So how does one decide which ones to pursue and integrate into services? In the uphill battle to stay current with new and emerging technologies, deciding which ones to pursue and integrate into services is a major challenge. A secondary problem is simply finding the time to consider the question. Readers ofKeeping Up with Emerging Technologieswill learn all of the best practices and skills to keep up with new technologies and to analyze the ability of specific technologies to meet recognized user needs—all in this single source.

You'll learn the best ways to gather information about new technologies and user needs, to evaluate and analyze information, to curate technology information for others, to set up experiments and evaluate the results, and to present your findings to persuade decision-makers. Written by the former head of user experience at MIT's library system, this guidebook serves information professionals, educators, education technology specialists, and anyone with "emerging technology" or "innovation" in their job titles. It will also be useful for library administrators and those who manage these positions as well as for students seeking a technology-oriented or curriculum-design career path in libraries.
National Security Doctrines of the American Presidency
Authors: Colucci Lamont C.
Published: September 2024

This two-volume set provides a chronological view of the foreign policy/national security doctrines of key American presidents from Washington to Obama, framed by commentary on the historical context for each, discussions of major themes, and examinations of the lasting impact of these policies.

The National Security Doctrines of the American Presidency: How They Shape our Present and Futureprovides a chronological examination of the foreign policy and national security doctrines of key American presidents from Washington to Obama, covering everything from our missionary zeal and our pursuit of open navigation of the seas, to our involvement in the ongoing political and military conflicts in the Middle East. It addresses the multiple sources behind the doctrines: real, rhetorical, and ideological. Arranged chronologically, each chapter offers commentary on the historical evolution of these doctrines, identifies the major themes, and highlights unique revelations.

Ideal for universities, colleges, libraries, academics, classroom teachers, policy makers, and the educated electorate, this two-volume set represents a compendium of national security doctrines that explains how these first doctrines have constrained, restrained, and guided every American president regardless of party, providing comprehensive information that cannot be found in any other single source. Further, the work presents the reader with examples and explanations of precisely how these doctrines from long ago as well as those from recent history directly affect our present and future.
New Wealth
Authors: Kozmetsky George , Williams Frederick , Williams Victoria
Published: September 2024

Drawing from more than 25 years of research and project development, the authors describe how accelerated commercialization strategies building on advances in science and technology offer a sustainable source of wealth. They show how collaboration among business, government, entrepreneurial, and academic partners—all focusing to leverage local resources to compete in the global marketplace—is an established and powerful strategy for 21st century business creation and economic development.

This collaborative success strategy of thinking globally and acting locally, along with supportive activities such as technology incubators, research methods, entrepreneurship training, and use of networks for resource sharing is what has come to be called the Technopolis paradigm. Because a maturing Technopolis evolves as an integral component of a city, state, or larger sociopolitical unit, it promotes attention to sustainability and quality of life. Further, Kozmetsky and Williams consider the Technopolis paradigm as a process of constructive capitalism in that it utilizes private or corporate commercialization of science and technology to create wealth and shared prosperity, the value of which is set by competition in a free market.
Minimalism and Affect in American Literature, 1970-2020
Authors: Haslam Oliver
Published: September 2024

Theorizes the development of a minimalist mode in American fiction since 1970, frequently seen to interrogate US postmodernity.

Minimalism and Affect in American Literature, 1970-2020responds to existing studies of literary minimalism by pursuing three original and interrelated objectives. It provides a more inclusive and precise definition of minimalism that enables further inquiry into the mode. It also exposes the presence of minimalism beyond critical demarcations that attempt to limit the aesthetic to a particular school, medium, movement, form or decade. Finally, it argues that writers of American literary minimalism are uniquely privileged in their ability to formalize precarity and threatening cultural currents into the fragile construct that is ordinary life.

Building upon theories of affect and the everyday,Minimalism and Affect in American Literature, 1970-2020analyses minimalist aesthetics within the works of canonical minimalists alongside writers more frequently associated with other movements. Through readings of Ernest Hemingway, Joan Didion, Raymond Carver, Paul Auster and Don DeLillo, among others, and cultural phenomena ranging from sedation to telephony, this book exposes the persistence and political importance of minimalism within American literature from the 20th century into the 21st.
CH08_TABLE1_ONLINE_GotNL.pdf
Authors: van Lochem Henk , Vis Geert-Jan , Jagt John W.M.
Published: September 2024

This table contains index taxa, arranged by groups, for Upper Cretaceous formations in the Netherlands.
REG-Switches in der Gebäudeautomation: Mehr Energieeffizienz durch intelligente Vernetzung
Authors:   Alexander Siegert,   Cosima Tuma
Published: September 2024

Um zukünftig die gesetzlichen Vorgaben für die energetische Effizienz vongewerblich genutzten Bauten zu erfüllen, muss die Gebäudetechnik zwingendautomatisiert werden. Damit dies möglichst wirtschaftlich erfolgt, bedarf eseiner Ethernet-basierten Vernetzung aller relevanten Komponenten.Mit REG-Switches lässt sich eine durchgängige Lösung in den Installationsverteilern der Gebäudetechnik im Sicherungsschrank realisieren.
AI-Powered Innovations in Mathematics Teaching & Learning: Initial Findings
Authors: Noakes Sierra , Shell Alison , Van Nostrand Parker , Murillo Alexis M. , Ruiz Pati , Liberman Babe
Published: September 2024

This report discusses findings based on responses to a request for information (RFI) led by the Bill & Melinda Gates Foundation and Digital Promise, which received nearly 200 responses that described a variety of innovative approaches to leveraging artificial intelligence (AI) for mathematics teaching and learning. As AI becomes increasingly prevalent in education, three key questions often drive conversations around this emerging technology: What does AI in education look like today; what are the risks to leveraging AI in education and how might those risks be mitigated; and, what should AI’s role be in education? The report shares findings to support both education leaders with decisions about AI as well as providers in learning more about market saturation and strategies to mitigate risks.
Tần suất, cơ hội sử dụng thức ăn nhanh và thức ăn chế biến sẵn của học sinh một trường Trung học phổ thông tại thành phố Tam Kỳ, tỉnh Quảng Nam, năm 2023
Authors: Hà Nguyễn Thanh , Thoa Châu Thị Trinh
Published: September 2024

Thức ăn nhanh (TAN) và thức ăn chế biến sẵn đang là xu hướng được giới trẻ ở thành thị ưa thích sử dụng vì sự tiện lợi, hợp khẩu vị và đa dạng về chủng loại. Nghiên cứu nhằm mô tả tần suất và cơ hội sử dụng TAN của học sinh trường Trung học phổ thông tại thành phố Tam Kỳ, tỉnh Quảng Nam, năm 2023. Nghiên cứu sử dụng phương pháp cắt ngang mô tả trên 251 học sinh lớp 10 đến lớp 12 từ tháng 03/2023 đến tháng 6/2023. Kết quả nghiên cứu cho thấy, 3 loại TAN và thức ăn chế biến sẵn có tỷ lệ thường xuyên sử dụng cao nhất là mì tôm, cá viên chiên que xiên và xúc xích (lần lượt là 52,6%: 32,7% và 23,1%; p < 0,05). 3 loại TAN có nhiều học sinh không sử dụng trong tháng qua chiếm tỷ lệ cao nhất là bánh bao chiên 57,8%, pizza 49,8%, hamburger 48,2%. 3 dịp sử dụng TAN nhiều nhất là khi gặp gỡ bạn bè, gia đình không nấu ăn và các buổi tổ chức sinh nhật (tỷ lệ lần lượt là: 64,9; 64,5 và 45,0; p < 0,05). Học sinh cần được truyền thông, giáo dục dinh dưỡng để biết cách lựa chọn và sử dụng thực phẩm có lợi cho sức khỏe.
Động lực làm việc và một số yếu tố liên quan của cán bộ y tế tại các trạm y tế thuộc thành phố Thái Nguyên năm 2023
Authors: Lan Nguyễn Thị Phương , Nhung Đàm Trang , Dũng Nguyễn Đăng
Published: September 2024

Nghiên cứu mô tả cắt ngang được thực hiện trên 168 cán bộ y tế làm việc tại trạm y tế thuộc thành phố Thái Nguyên nhằm mô tả động lực làm việc và một số yếu tố liên quan đến động lực của cán bộ y tế làm việc tại địa bàn nghiên cứu năm 2023. Động lực làm việc được mô tả trên 3 khía cạnh: Sự hài lòng, sự cam kết và sự tận tâm của cán bộ y tế bằng thang Likert 5 điểm. Động lực làm việc mức độ tốt thể hiện sự hài lòng, sự cam kết và sự tận tâm lần lượt đạt tỷ lệ 63,1%; 59,5% và 78,6% ở cán bộ y tế xã phường. Tỷ lệ cán bộ có động lực mức độ tốt chung của tất cả các yếu tố là 55,4%. Khía cạnh cơ sở y tế truyền cảm hứng có số điểm thấp nhất so với tất cả các khía cạnh khác, chỉ đạt 3,76 điểm (thang điểm 5). Cán bộ có trình độ đại học, sau đại học có động lực làm việc cao gấp 2,56 lần những người có trình độ cao đẳng hoặc trung cấp (OR: 2,56, CI (1,008 - 6,489). Lãnh đạo Trung tâm y tế thành phố Thái Nguyên cần chú ý tạo động lực làm việc tốt hơn đối với cán bộ y tế xã phường nói chung, chú trọng hơn đến những cán bộ có trình độ cao đẳng hoặc trung cấp.
Thực trạng hoạt động thể lực và một số yếu tố liên quan ở phụ nữ mang thai tại Bệnh viện Sản Nhi Trà Vinh năm 2022
Authors: Anh Tiêu Cẩm , Lan Nguyễn Thị Ngọc , Thu Huỳnh Thị Hồng , Trung Nguyễn Văn
Published: September 2024

Nghiên cứu mô tả mức độ hoạt động thể lực và một số yếu tố liên quan ở người phụ nữ mang thai tại Bệnh viện Sản Nhi Trà Vinh năm 2022. Thiết kế mô tả cắt ngang trên 220 phụ nữ có thai kỳ bình thường ở các tháng bằng phỏng vấn trực tiếp với Bộ câu hỏi hoạt động thể lực cho phụ nữ mang thai (Pregnancy Physical Activity Questionnaire). Kết quả cho thấy phụ nữ mang thai có hoạt động thể lực ở mức độ đạt theo khuyến cáo của Tổ chức Y tế Thế giới là 20,9%. Qua phân tích hồi qui logistic đa biến, tỷ lệ hoạt động thể lực đạt tăng liên quan đến thai phụ có thói quen tập thể dục trước đó (AOR = 4,44, 95%KTC: 1,48 - 13,24) và được nhân viên y tế cung cấp thông tin về chế độ vận động (AOR = 41,10, 95%KTC: 8,80 - 191,83). Ngược lại, phụ nữ làm công việc trí óc (AOR = 0,02, 95%KTC: 0,002 - 0,29) và gia đình có thái độ không đồng ý (AOR = 0,26, 95%KTC: 0,10 - 0,64) liên quan đến giảm tỷ lệ hoạt động thể lực đạt. Từ kết quả nghiên cứu, phụ nữ ở độ tuổi sinh sản nói chung, thai phụ nói riêng và thành viên trong gia đình cần được truyền thông sức khỏe về lợi ích của chế độ hoạt động thể lực đạt theo khuyến cáo và tập thể dục thường xuyên.
Creation and application of individual navigation templates in surgical treatment of degenerative diseases of the lumbar spine
Authors: Kovalev E. V.
Published: September 2024

Objective. To evaluate planned and obtained results of implantation of pedicle screws using individual navigation templates in patients with degenerative diseases of the lumbar spine.

Materials and methods. Based on the results of computed tomography, the safety and accuracy of installing pedicle screws (30 patients, 126 screws) were analyzed using individual navigation templates.

Results. The degree of safety 0 is registered in 96% (121 screws), the degree 1 is in 4% (5 screws). There were no cases of bone perforation by more than half of the screw diameter. There were no significant differences in the standard deviation of the sagittal angle between the planned installation and the actual trajectory of the screw. In the axial plane, no significant differences in standard deviation were observed at the entry and expected exit points of the screw. Statistical analysis showed insignificant differences between the planned and actual results (p>0.05)

Conclusion. The use of individual navigation templates makes it possible to implant pedicular screw structures in the lumbar spine with a high level of safety and accuracy.
Literasi Matematis: Analisa Kemampuan Siswa Berdasarkan Self-Concept
Authors: Afifah Hana , Yuniati Suci , Kurniati Annisah , Rahmi Depriwana
Published: September 2024

Penelitian ini bertujuan untuk mendeskripsikan kemampuan literasi matematis siswa berdasarkan self-concept pada materi sistem persamaan linear dua variabel (SPLDV). Jenis penelitian dalam penelitian ini adalah penelitian kualitatif dengan metode deskriptif dan menggunakan desain studi kasus. Subjek penelitian berjumlah 5 orang dari 21 siswa kelas VIII SMP Telekomunikasi Pekanbaru. Teknik pengumpulan data menggunakan angket self-concept, tes kemampuan literasi matematis, dan wawancara. Adapun instrumen yang digunakan adalah angket self-concept, soal tes kemampuan literasi dan pedoman wawancara. Analisis data melalui 3 tahapan yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa: (1) siswa self-concept tinggi menggunakan metode eliminasi-eliminasi dalam menyelesaikan soal kemampuan literasi matematis; dan (2) siswa self-concept sedang dan rendah menggunakan metode eliminasi-eliminasi dan eliminasi-substitusi menyelesaikan soal kemampuan literasi matematis.
Analisis kesalahan Jawaban Siswa Kelas VIIA pada Materi Penjumlahan dan Pengurangan Bilangan Bulat yang Menggunakan Konsep Debet dan Kredit di SMPK St. Paulus Karuni
Authors: Lepa Yosefina , Moza Florida , Bulu Marlince Sridorce
Published: September 2024

Dalam penyelesaian soal matematika, sering terjadi kekeliruan dan kesulitan dalam memecahkan masalah yang berkaitan dengan konsep matematika sehingga dalam penelitian ini bertujuan untuk menemukan bentuk-bentuk kesalahan yang dilakukan siswa dalam menyelesaikan soal-soal yang berkaitan dengan materi penjumlahan dan pengurangan bilangan bulat serta mencari faktor yang menyebabkan siswa melakukan kesalahan. Jenis penelitian yang diterapkan adalah deskriptif kualitatif. Subjek dalam penelitian ini adalah siswa kelas VIIA SMPK St. Paulus Karuni yang berjumlah 15 orang. Metode pengumpulan data berupa hasil tes. Teknik analisis data yang digunakan yaitu (1) reduksi data (data reduction), (2) paparan data (data display), dan (3) penarikan kesimpulan dan verifikasi (conclusion drawing/verifying). Hasil penelitian menunjukkan kesalahan yang dilakukan oleh siswa: (1) Kesalahan memahami (2) Kesalahan membaca (3) Kesalahan penulisan (4) Kesalahan proses
United States monetary policy response to the COVID-19 pandemic and its impact on unemployment rates
Authors: Frederick Owusu Ampofo  , Nii Okantey Adjetey  , Cyril Nii Odoi Odoi  , Deligent Bobie-Ansah
Published: September 2024

The COVID-19 outbreak caused a drastic economic downturn resulting in high levels of job loss and disruptions across different industries. In response, the Federal Reserve (Fed) introduced monetary strategies such as lowering interest rates, implementing quantitative easing and providing emergency loans to stabilize the economy. This academic paper delves into how the Fed’s monetary policy responded to the COVID-19 crisis and its effects on unemployment in the U.S. By analyzing data from before and during the pandemic, this study assesses how effective these measures were in reducing joblessness and aiding economic recovery. The research suggests that while the Fed’s interventions played a role in averting a severe recession, the recovery was not uniform with certain demographic groups and sectors experiencing prolonged unemployment. The paper closes with a conversation about the shortcomings of monetary policy in addressing structural unemployment and the need to consider coordinated fiscal strategies as well.
Keywords: COVID-19 Pandemic, Monetary Policy, Unemployment Rates, Economic Recovery.
POTENCIALIZANDO A APRENDIZAGEM ATIVA COM TECNOLOGIA DE IA
Authors: Gomes Antonio José Ferreira , Verçosa Bruno Francisco Monteiro , Pinto Carlos Roberto Santos , Moura Cleberson Cordeiro de , Silva Cristiane dos Santos , Reis Omaira Buzatto dos
Published: September 2024

O estudo abordou a questão de como a inteligência artificial pode potencializar a aprendizagem em ambientes educacionais. O objetivo geral foi analisar a utilização da IA na educação, identificando suas principais aplicações, benefícios e desafios. A metodologia adotada consistiu em uma revisão de literatura, compilando e analisando estudos relevantes sobre o tema. No desenvolvimento, discutiu-se que a IA pode personalizar o ensino, ajustando conteúdos e atividades de acordo com as necessidades individuais dos alunos. Essa personalização permite um aprendizado eficiente e adaptado. Também foi destacado que a IA pode automatizar tarefas administrativas, como a correção de provas e a gestão de atividades escolares, liberando tempo para que os educadores se concentrem na instrução. Questões éticas e de privacidade foram identificadas como desafios significativos. A implementação da IA deve garantir a transparência dos algoritmos e a proteção dos dados dos alunos. Além disso, a equidade no acesso às tecnologias de IA foi apontada como um desafio crucial, ressaltando a necessidade de garantir que todos os alunos tenham acesso igualitário aos recursos tecnológicos. Nas considerações finais, o estudo concluiu que a IA tem um potencial significativo para transformar os processos de ensino e aprendizagem, oferecendo benefícios em termos de personalização e eficiência. No entanto, é essencial abordar os desafios éticos e garantir que todos os alunos tenham acesso equitativo às tecnologias. O estudo contribuiu para a compreensão das aplicações práticas da IA na educação e destacou a necessidade de futuras pesquisas para explorar a implementação prática e o impacto de longo prazo da IA no desempenho dos alunos.
Verifying national inventory-based combustion emissions of CO2 across the UK and mainland Europe using satellite observations of atmospheric CO and CO2
Authors: Scarpelli Tia R. , Palmer Paul I. , Lunt Mark , Super Ingrid , Droste Arjan
Published: September 2024

Abstract. Under the Paris Agreement, countries report their anthropogenic greenhouse gas emissions in national inventories, which are used to track progress towards mitigation goals, but they must be independently verified. Atmospheric observations of CO2, interpreted using inverse methods, can potentially provide that verification. Conventional CO2 inverse methods infer natural CO2 fluxes by subtracting a priori estimates of fuel combustion from the a posteriori net CO2 fluxes, assuming that a priori knowledge for combustion emissions is better than for natural fluxes. We describe an inverse method that uses measurements of CO2 and carbon monoxide (CO), a trace gas that is co-emitted with CO2 during combustion, to report self-consistent combustion emissions and natural fluxes of CO2. We use an ensemble Kalman filter and the GEOS-Chem atmospheric transport model to explore how satellite observations of CO and CO2 collected by the TROPOspheric Monitoring Instrument (TROPOMI) and Orbiting Carbon Observatory-2 (OCO-2), respectively, can improve understanding of combustion emissions and natural CO2 fluxes across the UK and mainland Europe in 2018–2021. We assess the value of using satellite observations of CO2, with and without CO, above what is already available from the in situ network. Using CO2 satellite observations leads to small corrections to a priori emissions that are inconsistent with in situ observations, due partly to the insensitivity of the atmospheric CO2 column to CO2 emission changes. When we introduce satellite CO observations, we find better agreement with our in situ inversion and a better model fit to atmospheric CO2 observations. Our regional mean a posteriori combustion CO2 emission ranges from 4.6–5.0 Gt a−1 (1.5 %–2.4 % relative standard deviation), with all inversions reporting an overestimate for Germany's wintertime emissions. Our national a posteriori CO2 combustion emissions are highly dependent on the assumed relationship between CO2 and CO uncertainties, as expected. Generally, we find better results when we use grid-scale-based a priori CO2:CO uncertainty estimates rather than a fixed relationship between the two species.
Merging TEMPEST microwave and GOES-16 geostationary IR soundings for improved water vapor profiles
Authors: Kuo Chia-Pang , Kummerow Christian
Published: September 2024

Abstract. The Temporal Experiment for Storms and Tropical Systems Demonstration (TEMPEST-D) demonstrated the capability of CubeSat satellites to provide high-quality, stable microwave signals for estimating water vapor, clouds, and precipitation from space. Unlike the operational NOAA and MetOp series satellites, which combine microwave and hyperspectral infrared sensors on the same platforms to optimize retrievals, CubeSat radiometers such as TEMPEST do not carry additional sensors. In such cases, the high-temporal- and spatial-resolution and multi-channel measurements from the Advanced Baseline Imager (ABI) on the next-generation series of Geostationary Operational Environmental Satellites (GOES-R) are ideal for assisting these smaller, stand-alone radiometers. Based on sensitivity tests, the water vapor retrievals from TEMPEST are improved by adding water-vapor-sounding, window, and CO2 channels at 6.2, 6.9, 7.3, 8.4, 10.3, 11.2, 12.3, and 13.3 µm from ABI, which help to increase the vertical resolution of soundings and reduce retrieval errors. Adding three ABI water-vapor-sounding channels, under clear-sky conditions, retrieval biases and root mean square errors improve by approximately 10 %, while under cloudy skies, biases remain unchanged, but root mean square errors still decrease by 5 %; meanwhile, retrieval biases and root mean square errors are substantially reduced by adding more information from eight ABI bands in both clear and cloudy skies. Humidity soundings are also validated using coastal radiosonde data from the Integrated Global Radiosonde Archive (IGRA) from 2019 to 2020. When ABI indicates clear skies, water vapor retrievals improve somewhat by decreasing the overall bias in the microwave-only estimate by roughly 10 %, although layer root mean square errors remain roughly unchanged at 1 g kg−1 when three or eight ABI channels are added. When ABI indicates cloudy conditions, there is little change in the results. The small number of matched radiosondes may limit the observed improvement.
Future projections of Siberian wildfire and aerosol emissions
Authors: Nurrohman Reza Kusuma , Kato Tomomichi , Ninomiya Hideki , Végh Lea , Delbart Nicolas , Miyauchi Tatsuya , Sato Hisashi , Shiraishi Tomohiro , Hirata Ryuichi
Published: September 2024

Abstract. Wildfires are among the most influential disturbances affecting ecosystem structure and biogeochemical cycles in Siberia. Therefore, accurate fire modeling via dynamic global vegetation models is important for predicting greenhouse gas emissions and other biomass-burning emissions to understand changes in biogeochemical cycles. We integrated the widely used SPread and InTensity of FIRE (SPITFIRE) fire module into the spatially explicit individual-based dynamic global vegetation model (SEIB-DGVM) to improve the accuracy of fire predictions and then simulated future fire regimes to better understand their impacts. The model can reproduce the spatiotemporal variation in biomass, fire intensity, and fire-related emissions well compared to the recent satellite-based estimations: aboveground biomass (R2=0.847, RMSE =18.3 Mg ha−1), burned fraction (R2=0.75, RMSE=0.01), burned area (R2=0.609, RMSE =690 ha), dry-matter emissions (R2=0.624, RMSE =0.01 kg DM m−2; dry matter), and CO2 emissions (R2=0.705, RMSE =6.79 Tg). We then predicted that all of the 33 fire-related gas and aerosol emissions would increase in the future due to the enhanced amount of litter as fuel load from increasing forest biomass production under climate forcing of four Representative Concentration Pathways: RCP8.5, RCP6.0, RCP4.5, and RCP2.6. The simulation under RCP8.5 showed that the CO2, CO, PM2.5, total particulate matter (TPM), and total particulate carbon (TPC) emissions in Siberia in the present period (2000–2020) will increase relatively by 189.66±6.55, 15.18±0.52, 2.47±0.09, 1.87±0.06, and 1.30±0.04 Tg species yr−1, respectively, in the future period (2081–2100) and the number of burned trees will increase by 100 %, resulting in a 385.19±40.4 g C m−2 yr−1 loss of net primary production (NPP). Another key finding is that the higher litter moisture by higher precipitation would relatively suppress the increment of fire-related emissions; thus the simulation under RCP8.5 showed the lowest emissions among RCPs. Our study offers insights into future fire regimes and development strategies for enhancing regional resilience and for mitigating the broader environmental consequences of fire activity in Siberia.
Regime shift caused by accelerated density reorganization on the Weddell Sea continental shelf with high-resolution atmospheric forcing
Authors: Teske Vanessa , Timmermann Ralph , Nissen Cara , Zentek Rolf , Semmler Tido , Heinemann Günther
Published: September 2024

Abstract. The strong Antarctic Slope Front in the southern Weddell Sea limits the present-day transport of modified Warm Deep Water onto the continental shelf and is associated with a characteristic V-shape in the density structure all along the continental slope. The mechanisms controlling today's V-shape are well studied, but its future development is not yet well constrained. In this study, we run ocean model simulations for a 21st-century Shared Socio-economic Pathways (SSP) 3-7.0 emission scenario forced with atmospheric model output from simulations with a global climate model and from a higher-resolved regional atmospheric model, respectively. We find that the resolution of the atmospheric model component influences the simulated future transport of modified Warm Deep Water onto the continental shelf through differences in the evolution of the depth and symmetry of the V-shape over the 21st century. In both simulations, reduced sea-ice formation and weakened Ekman downwelling reduce the depth of the V-shape and increase the sensitivity of its position above the slope to seasonal variations in sea-ice production and in the wind field. Using data from an atmosphere model with higher resolution leads to an acceleration of the density redistribution on the continental shelf, provoking a regime shift from cold to warm Filchner Trough through a cross-slope current before the end of the 21st century. As cross-slope currents disturb the continuity of the V-shape, we define a grade of connectivity to quantify the lateral integrity of the V-shape along the continental slope. We find that the integrity of the V-shape reduces with a delay of 3 months after a strong cross-slope current of modified Warm Deep Water enters Filchner Trough. Our results also indicate that the SSP3-7.0 climate scenario may have a higher potential for a regime shift than other ocean simulations for the same scenario but with lower atmospheric resolution suggest. Atmospheric downscaling increases the potential for a regime shift, dominated by warmer summer air temperatures. The Antarctic Slope Front is temporarily disturbed by cross-slope currents but the primary reason for the regime shift is the cross-slope density gradient.
Análisis bibliométrico sobre publicación en estudios de comunicación en revistas científicas latinoamericanas durante el período de 2020 a 2023
Authors: Rios Incio Felipe Anderson , Páez Moreno Ángel , Paz Enrique Luis Ernesto
Published: September 2024

Objetivo. El artículo tiene como finalidad examinar la evolución de la producción científica en el ámbito de la comunicación, enfocándose en revistas indizadas en Scopus durante el periodo 2020-2023 y clasificadas en el Scimago Journal & Country Rank. Para el logro de los anterior el foco del estudio se basó en el campo de las ciencias de la comunicación dentro del área más amplia de las ciencias sociales
Método. Se realizó un análisis bibliométrico para evaluar 18 revistas especializadas en comunicación de ciencias sociales. Utilizando Python y Pandas para el procesamiento de datos y VOSviewer para la representación multivariada a través del análisis de redes sociales.
Resultados. Se identificaron 2 518 artículos, con un comportamiento decreciente en publicaciones anuales de 723 en 2020 a 516 en 2023. Asimismo, se visualiza una notable reducción en citaciones: de 978 en 2020 a 53 en 2023. Predominó el español, seguido por el portugués como idiomas en la producción científica publicada. El artículo más citado destacó temáticas como periodismo y verificación de datos. Brasil fue el país principal en cuanto a contribuciones en afiliaciones.
Conclusiones. La investigación concluyó que hay una disminución en la producción científica influenciada por cambios en financiamiento e intereses académicos, resaltando la necesidad de revisar estrategias de publicación. Se observó una adaptación a los cambios tecnológicos y sociales con interés en digitalización y áreas como la comunicación corporativa. Se subraya la importancia de fortalecer la colaboración internacional para incrementar la visibilidad y el impacto global de la investigación.
Eficiencia de los servicios públicos en la era digital
Authors: Galindo Pasache Rosa Luz , Cano Legua Fernando Eduardo , Gabriel Hernández Orlando Terry
Published: September 2024

En el contexto de la creciente digitalización de los servicios públicos, este estudio se enfocó en evaluar la percepción de los usuarios sobre la eficiencia de dichos servicios en una ciudad metropolitana. Se utilizó un diseño de investigación cuantitativa con un cuestionario estructurado basado en una escala de Likert, administrado a una muestra representativa de 400 usuarios. Los resultados mostraron una percepción mayoritariamente positiva hacia la eficiencia de los servicios públicos digitalizados, con altas valoraciones en rapidez y accesibilidad. Sin embargo, la facilidad de uso, transparencia y seguridad de los datos obtuvieron puntuaciones moderadas, indicando áreas de mejora. Las conclusiones resaltan la necesidad de mejorar la usabilidad de las plataformas digitales y fortalecer las políticas de transparencia y seguridad para optimizar la experiencia del usuario. Este estudio subraya la importancia de adaptar las estrategias de digitalización a las necesidades y expectativas cambiantes de los usuarios, promoviendo una administración pública más eficiente y centrada en el ciudadano.