- News Article
3
- 10.1038/d41586-023-00482-7
High-altitude balloons: a scientists' guide to what's up there and why.
- Feb 16, 2023
- Nature
- Nicola Jones
Publications from 2021 to 2026
Showing 10 of 16 papers
High-altitude balloons: a scientists' guide to what's up there and why.
Authors' names have 'astonishing' influence on peer reviewers.
Menelusuri konsep negara
memahami konsep, hakikat, dan pentingnya Pancasila sebagai dasar negara, ideologi negara, atau dasar filsafat negara Republik Indonesia dalam kehidupan bernegara. Hal tersebut penting mengingat peraturan perundang-undangan yang mengatur organisasi negara, mekanisme penyelenggaraan negara, hubungan warga negara dengan Negara yang semua itu harus sesuai dengan nilai-nilai Pancasila.Sebagaimana kita ketahui bahwa Pancasila sebagai dasar negara yang autentik termaktub dalam Pembukaan UUD 1945. Inti esensi nilai-nilai Pancasila tersebut, yaitu Ketuhanan, Kemanusiaan, Persatuan, Kerakyatan, dan Keadilan sosial. Bangsa Indonesia semestinya telah dapat mewujudkan keadilan sosial bagi seluruh rakyat sebagaimana yang dicita-citakan, tetapi dalam kenyataannya belum sesuai dengan harapan. Hal tersebut merupakan tantangan bagi generasi muda, khususnya kita sebagai kaum intelektual, untuk berpartisipasi, berjuang mewujudkan tujuan negara berdasarkanPancasila. Agar partisipasi kita di masa yang akan datang efektif, maka perlu perluasan dan pendalaman wawasan akademik mengenai dasar negara melalui mata kuliah pendidikan Pancasila.
Read moreDevelopment Of Nde Laboratory For Aet Students And Certification Program
Abstract NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract Development of NDE Laboratory for AET Students and Certification Program ABSTRACT Drexel University’s Goodwin College of Professional Studies is in the process of developing the instructional materials for its nondestructive evaluation (NDE) course by placing emphasis on techniques and applications in the areas of manufacturing, power generation, oil and gas production, structural and pipeline welding, and commercial/military aviation maintenance, among others. Students enrolled in the Bachelor of Science in Applied Engineering Technology (AET) program will be the main target audience. They will have access to the developed material in two modes: the traditional face-to-face classroom mode for those on Drexel’s campus, and a real-time, Internet-based videoconferencing mode for those attending classes at remote locations, specifically students at community colleges partnering with Drexel. The developed instructional materials will be part of a wider STEM (Science, Technology, Engineering, and Mathematics) initiative, including the development of novel teaching and learning strategies, the creation of new learning materials, and the implementation of effective assessment and evaluation techniques. Additionally, these novel teaching and learning strategies will be incorporated into the curricula of Drexel University’s two-year college partners, such as Burlington County College and Delaware County Community College. The outcome of the proposed project will be a hands-on laboratory course in which NDE techniques of parts and materials will be presented and applied through real-life problems. NDE curriculum will be designed to fulfill Levels I and II NDE in theory and training requirements, according to American Society for Nondestructive Testing (ASNT ) Recommended Practice No. SNT-TC-1A (2001). Once fully developed, the NDE laboratory will serve as a training center for engineering technology students, as well as for the workforce of local companies, such as Boeing, Lockheed Martin, and PECO Energy, with whom Drexel has a rich history of partnership in terms of internships and research collaborations. Such educational laboratories are nearly non-existent in our geographic region, and consequently will be welcomed by the industrial community in need of engineering technologists who can competently utilize NDE instrumentation and to provide support to the designers and engineers in testing applications.
Read moreMathematical Model and Simulations of COVID-19 2020 Outbreak in New York: Predictions and Implications for Control Measures
The outbreak of the novel coronavirus has resulted in significant morbidity and mortality in the affected 210 countries with 2 4 million people infected and ove
Read moreTeachers’ Perspectives in Using Disney Songs in the Music Classroom
Integrating popular music as part of the public school music curriculum has been a topic of debate among many educators and researchers. Songs from the Disney Corporation, specifically from movies, television shows, and performers specifically marketed by Disney, are particularly significant due to their widespread popularity. In this article, the author compares various perspectives of researchers and practicing teachers as to their opinions regarding the use of Disney songs in their classrooms. Specific usages and incorporation into instructional methods are described, in contrast to opinions why certain educators oppose the use of Disney music, including specific songs or Disney music as an entity.
Read moreReady or Not: Preparation Through Simulation
Immediately after 9/11, Burlington County College (BCC) realized that the focus of emergency preparedness must change. BCC responded by identifying community needs, developing customized simulation training using high-fidelity human patient simulators and laptop/desktop technology; developing partnerships, and securing outside funding. Over 8,500 individuals, at all levels, have received training.
Read moreFormulação numérica, via MEF, de problemas de adensamento considerando a variação do nível d'água
Esse artigo apresenta a formulação isoparamétrica, via MEF, de problemas de adensamento devido à variação do nível d'água em termos das variáveis primárias: deslocamentos e carga hidráulica total. A superfície livre, durante o regime de escoamento transitório, é considerada como um contorno móvel e, para sua localização, é adotado o processo de fluxo residual. A estratégia de redução da permeabilidade, necessária para minimizar o fluxo nas regiões com poro-pressões negativas, foi adotada nesse artigo. O modelo numérico apresentado foi implementado no programa computacional ANLOG para solução de problemas em estado plano de deformação. São apresentados exemplos que validam a formulação apresentada.
Read moreNutrient Removal by Corn Grain Harvest
Effective nutrient management requires an accurate accounting of nutrients removed from soils in the harvested portion of a crop. Because the typical crop nutrient values that have historically been used may be different under current production practices, a study was conducted to measure nutrient uptake in grain harvested in 1998 and 1999 from 23 site-years in the Mid-Atlantic region of the USA. There were 10 hybrids included in the study, but each site grew only one hybrid each year. Corn (Zea mays L.) production practices followed local state extension recommendations. Minimum, maximum, and mean corn grain yields were 4.9, 16.7, and 10.3 Mg ha−1. Nutrient concentrations were determined on grain samples oven-dried at 70°C for 24 h. Minimum, maximum, and median nutrient concentration values were as follows: 10.2, 15.0, and 12.9 g N kg−1; 2.2, 5.4, and 3.8 g P kg−1; 3.1, 6.2, and 4.8 g K kg−1; 0.13, 0.45, and 0.28 g Ca kg−1; 0.88, 2.18, and 1.45 g Mg kg−1; 0.9, 1.4, and 1.0 g S kg−1; 9.0, 89.5, and 33.6 mg Fe kg−1; 15.0, 34.5, and 26.8 mg Zn kg−1; 1.0, 9.8, and 5.3 mg Mn kg−1; 1.0, 5.8, and 3.0 mg Cu kg−1; and 2.3, 10.0, and 5.5 mg B kg−1. Median nutrient uptake values found in this study are similar to commonly used book values, but there was considerable variation among samples of corn grain. Concentrations of P and K in grain were positively associated with yield level, and concentrations of grain P were positively correlated with Mehlich-3 soil test P. The variability in nutrient removal values seen in this study, even for the same hybrid, raises questions about the usefulness of average values for estimating crop nutrient removal across a range of cropping conditions. Research is needed to identify or develop a means to correct for the sources of variability.
Read moreApplications of satellite imagery, remote sensing and computer visualizations: observing the earth visualizing the future
The Digital Earth Initiative will be a virtual representation of our planet that enables a person to explore and interact with the vast amounts of natural and cultural information gathered about the Earth. A primary goal of Digital Earth is to unlock the world's knowledge by simplifying access to geo-referenced information. The Digital Earth Vision is to provide interoperability of geo-referenced digital resources. Digital Earth supports decision-making, geo-information management, increasing knowledge, and scientific discovery and dissemination to support a sustainable human world. The GLOBE Program on the 25th anniversary of Earth Day April 22, 1995, the GLOBE Program officially began. Global Learning and Observations to Benefit the Environment (GLOBE) is a hands-on international environmental science and education program. GLOBE links students, teachers, and the scientific research community in an effort to learn more about our environment through student data collection and observation. The goals of GLOBE are to: enhance the environmental awareness of individuals throughout the world contribute to scientific understanding of the Earth help all students reach higher levels of achievement in science and mathematics. GLOBE is a hands-on, minds-on program in which students will become the environmental experts for their study sites. The GLOBE Program fosters the creation of a worldwide research team, comprised of students and teachers in collaboration with environmental scientists for generating knowledge about the Earth as an interconnected system. Learning activities are designed to promote the understanding of science using tools such as visualizations and satellite images.
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