164 research outputs found
Individual differences v. the average patient: mapping the heterogeneity in ADHD using normative models
No full textContains fulltext :
218283.pdf (Publisher’s version ) (Open Access
Breakdown of individuals tested in the methyl salicylate repellency experiment.
No full text1<p>One individual excluded as did not visit either host or methyl salicylate quadrant.</p>2<p>Two individuals excluded as did not visit either host or methyl salicylate quadrant.</p>3<p>One individual excluded as did not visit either host or methyl salicylate quadrant.</p
Managing tropical forest planttions in times of climate change: closing the gap between science and forestry practitioners in Costa Rica
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Introductory notes about Servius Sulpicius Rufus
No full textThe present paper, taking into account the current stage of Roman law research, has the purpose of introducing the main elements necessary for the understanding of the late-Republican jurist Servius Sulpicius Rufus. To this purpose, a brief epitome on author’s biography and works is presented, elucidating how they should be interpreted in relation to their mode of presentation in the Roman sources, concluding with a summary on jurist’s method of interpretation.O presente texto, tendo em vista o estágio atual das pesquisas romanísticas, possui a finalidade de introduzir os principais elementos necessários à compreensão do jurista tardo-republicano Sérvio Sulpício Rufo. Para tanto, introduz-se um breve epítome sobre a biografia e sobre as obras do autor, elucidando como se deve interpretá-las em relação ao seu modo de apresentação nas fontes romanas, concluindo-se, ao fim, com uma suma sobre o método de interpretação do jurista
Episode 35: Leading with Gratitude
No full textRuntime 28:57The third season of the Youth Development Podcast Series starts with a discussion on expressing gratitude. Nancy shares 5 Strategies and helpful resources to improve skills as a grateful leader: Schedule Gratitude Time, Speak Gratitude Language, Listen, Accept Gratitude from your team and Ask “How can I help?”Robideau, Kari; Hegland, Nancy. (2019). Episode 35: Leading with Gratitude. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/218283
The Point of Promises
No full textThe normative mechanics of promising seem complex. The strength and content of promissory obligations, and the residual duties they entail upon being violated, have various prima facie surprising features. We give an account to explain these features. Promises have a point. The point of a promise to φ is a promise-independent reason to φ for the promisee’s sake. A promise turns this reason into a duty. This explains the mechanics of promises. And it grounds a nuanced picture of immoral promises, an argument against promissory bare wrongings, and a constraint on theories of why we have promissory obligations at all
A cooperative massive MIMO system for future In vivo nanonetworks
No full textTerahertz propagation inside human body tissues suffers from a low achievable capacity, which drastically limits the usefulness of in vivo nanoscale networks. In this article, a virtual massive multiple-input multiple-output (m-MIMO) array architecture constructed by the cooperative and opportunistic action of distributed nano nodes to form a cluster is introduced for the first time for in vivo nano communications. Moreover, a joint carefully designed scheme merging an antenna-selection-based maximum magnitude (MM) criterion and a spatial modulation (SM) transmission concept is incorporated within this virtual m-MIMO architecture, as a way to achieve the best compromise between performance and complexity. Capacity maximization achieved by the proposed MM antenna selection is also derived for the proposed system. Simulation results consolidate the effectiveness of the proposed MM antenna-selection-assisted SM for the virtual m-MIMO system inside human bodies. It is shown that the MM antenna selection can greatly improve the performance of the proposed architecture in terms of the bit error rate and reduce the complexity
Pengaruh Konsentrasi Aluminium Sulfat terhadap Kemuluran, Ketebalan, dan Kekuatan Tarik Pada Proses Penyamakan Kulit Kelinci.
No full textKulit merupakan hasil samping pemotongan hewan yang telah diusahakan untuk menambah pemasukan bagi negara berupa devisa yang dihasilkan dan penyerapan tenaga kerja pada industri kulit di dalam negeri. Penyamakan merupakan proses konversi protein kulit mentah menjadi kulit samak (leather) yang stabil, tidak mudah membusuk, dan cocok untuk beragam kegunaan. Penambahan aluminium sulfat ini diharapkan untuk menstabilkan warna terhadap ketahanan luntur warna dan kekuatan sobek. Aluminium sulfat atau Al₂(SO₄)₃ merupakan koagulan yang banyak digunakan karena ekonomis, mudah diperoleh dipasaran serta mudah dalam penyimpanannya. Aluminium sulfat merupakan salah satu bahan penyamak mineral yang digunakan dalam industri penyamakan kulit.
Penelitian ini dilaksanakan di Laboratorium Teknologi Hasil Ternak Fakultas Petenakan Universitas Brawijaya dan Laboratorium Fisis BBKKP (Balai Besar Kulit, Karet dan Plastik) Yogyakarta yang dimulaipada bulan Juli - September 2023. . Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penggunaan aluminium pada proses penyamakan terhadap kualitas fisik kulit (kemuluran, ketebalan dan kekuatan tarik). Materi yang digunakan adalah 120 lembar kulit kelinci mentah jenis lokal yang diperoleh dari batu dan aluminium sulfat sebagai bahan penyamak. Tingkat konsentrasi aluminium sulfat yang digunakan yaitu 250 gram (P1), 300 gram (P2), 350 gram (P3) dan 400 gram (P4). Metode percobaan dengan menggunakan Rancangan Acak Lengkap yang terdiri atas 4 perlakuan dan 4 ulangan yang dianalisis menggunakan Analysis of Variance (ANOVA) dan dilanjutkan dengan Uji Jarak Berganda Dunca (UJBD).
Hasil penelitian menunjukkan bahwa tingkat konsentrasi aluminium sulfat berpengaruh sangat nyata (P<0,01) terhadap kemuluran, ketebalan dan kekuatan tarik. Nilai tertinggi kemuluran pada perlakuan P4 yaitu 56,02% dan nilai terendah pada perlakuan P2 yaitu 30,45%. Nilai tertinggi ketebalan pada perlakuan P2 yaitu 0,50mm dan nilai terendah pada perlakuan P4 yaitu 0,33. Dan nilai tertinggi kekuatan tarik pada perlakuan P2 yaitu 33,91N/mm2 dan nilai terendah pada perlakuan P4 yaitu 14,12 N/mm2. Penggunaan aluminium sulfat berpengaruh terhadap kemuluran, ketebalan dan kekuatan tarik kulit kelinci tersamak berbulu. Konsentrasi penggunaan aluminium sulfat dalam proses penyamakan kulit berbulu didapatkan dengan hasil terbaik dari rataan kemuluran pada penggunaan aluminium sulfat konsentrasi 400 gram yaitu 56,02% serta penggunaan aluminium sulfat konsentrasi 300 gram menjadi perlakuan terbaik pada rataan ketebalan 0,50 mm dan kekuatan tarik 33,91 N/mm2. Saran diperlukan penelitian lebih lanjut dengan menentukan tingkat konsentrasi aluminium sulfat 300 gram dan garam sebaiknya 300 gram
Modelling Li+ Ion Battery Electrode Properties
No full textWe formulated two detailed models for an electrolytic cell with particulate electrodes based on a lithium atom concentration dependent Butler-Volmer condition at the interface between electrode particles and the electrolyte. The first was based on a dilute-ion assumption for the electrolyte, while the second assumed that Li ions are present in excess.
For the first, we used the method of multiple scales to homogenize this model over the microstructure, formed by the small lithium particles in the electrodes.
For the second, we gave rigorous bounds for the effective electrochemical conductivity for a linearized case.
We expect similar results and bounds for the "full nonlinear problem" because variational results are generally not adversely affected by a sinh term.
Finally we used the asymptotic methods, based on parameters estimated from the literature, to attain a greatly simplified one-dimensional version of the original homogenized model. This simplified model accounts for the fact that diffusion of lithium atoms within individual electrode particles is relatively much faster than that of lithium ions across the whole cell so that lithium ion diffusion is what limits the performance of the battery. However, since most of the potential drop occurs across the Debye layers surrounding each electrode particle, lithium ion diffusion only significantly affects cell performance if there is more or less complete depletion of lithium ions in some region of the electrolyte which causes a break in the current flowing across the cell. This causes catastrophic failure. Providing such failure does not occur the potential drop across the cell is determined by the concentration of lithium atoms in the electrode particles. Within each electrode lithium atom concentration is, to leading order, a function of time only and not of position within the electrode. The depletion of electrode lithium atom concentration is directly proportional to the current being drawn off the cell. This leads one to expect that the potential of the cell gradually drops as current is drawn of it.
We would like to emphasize that all the homogenization methods employed in this work give a systematic approach for investigating the effect that changes in the microstructure have on the behaviour of the battery. However, due to lack of time, we have not used this method to investigate particular particle geometries
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