Rate of Convergence to Barenblatt Profiles for the Fast Diffusion Equation

We study the asymptotic behaviour of positive solutions of the Cauchy problem for the fast diffusion equation near the extinction time. We find a continuum of rates of convergence to a self-similar profile. These rates depend explicitly on the spatial decay rates of initial data

Applying the Theory of Planned Behavior to healthy eating behaviors in urban Native American youth

BACKGROUND: To investigate the efficacy of the Theory of Planned Behavior (TPB) to predict healthy eating behavior in a group of urban Native American youth. METHODS: Native American boys and girls (n = 139), ages 9–18 years old, were given a self-administered survey to assess eating behavior using the TBP constructs (intention, attitude, subjective norm, barriers, self-efficacy, and perceived behavioral control). Youth were also measured for height and weight and body mass index (BMI) was calculated. Bivariate correlations and stepwise regression analyses of TBP model were performed with SPSS software. RESULTS: No association was found between intention and healthy eating behavior. However, independently healthy eating behavior was correlated with barriers (0.46), attitude (0.44), perceived behavioral control (0.35), and subjective norm (0.34). The most predictive barriers to eating healthy included the availability and taste of foods. Boys' eating behavior was most predicted by subjective norm, while girls' eating behavior was most predicted by barriers. CONCLUSION: Lack of association between intention and healthy eating behavior suggests that factors other than intentions may drive healthy eating behaviors in urban Native American youth. Results indicate that programs promoting healthy eating to youth might focus on collaborating with families to make healthy foods more appealing to youth

Quenching for Quasilinear Equations

This is an Accepted Manuscript of an article published by Taylor & Francis as Marek, Fila, Bernhard Kawohl, and Howard A. Levine. "Quenching for Quasilinear Equations." Communications in Partial Differential Equations 17, no. 3-4 (1992): 593-614. Available online: https://doi.org/10.1080/03605309208820855. Posted with permission.</p

Efek Xenia Pada Persilangan Beberapa Genotipe Jagung (Zea Mays.l) Terhadap Karakter Biji Dan Tongkol Jagung

Saat ini, petani sedang mengalami permasalahan dalam ketersediaan benih bermutu dari varietas unggul. Persilangan adalah salah satu cara untuk mendapatkan kultivar unggul yang mempunyai potensi hasil tinggi. Penelitian bertujuan mengeva- luasi efek xenia (pengaruh tetua jantan) terhadap karakter biji dan tongkol jagung secara kuantitatif maupun kualitatif. Percobaan dilaksanakan pada bulan Maret sampai Juli 2013 di Kebun Percobaan Jatikerto Fakultas Pertanian Universitas Brawijaya, Malang. Data kuantitatif menggunakan uji membandingkan antar perlakuan pada beberapa kombinasi persilangan selfing dan crossing yaitu Uji T independent pada taraf 5%, sedangkan data kualitatif menggunakan pendekatan statiska deskriptif dan skoring. Penelitian dilakukan dengan menanam 18 genotipe tanaman jagung. Perlakuan berupa 12 genotipe inbrida sebagai tetua betina dan 5 genotipe inbrida dan 1 varietas komersial sebagai tetua jantan. Pada masing-masing genotipe dilakukan dua perlakuan (selfing dan crossing), sehingga didapatkan 82 kombinasi persilangan. Hasil penelitian ini menunjukkan xenia muncul pada hasil beberapa kombinasi persilangan crossing karakter biji dan tongkol baik kuantitatif (berat tongkol, dan jumlah biji per tongkol) maupun kualitatif (warna dan bentuk biji). Dari 6 tetua jantan yang diuji, tetua BISI dan tetua G10-19 menunjukkan hasil yang tinggi pada parameter kuantitatif sehingga dapat dipilih sebagai tetua jantan dalam pembentukan hibrida. Xenia nampak pada crossing antara ♀ G10-1 (kuning) X ♂ GU (ungu) yaitu 100 % warna berubah. Hasil dari beberapa persilangan crossing menunjukkan bahwa karakter bentuk kernel flint (mutiara) memberikan ekspresi gen lebih kuat dibandingkan dengan bentuk kernel dent (gigi kuda)

ІНФОРМАЦІЙНІ ТЕХНОЛОГІЇ ПРОСТОРОВОЇ ІНВЕНТАРИЗАЦІЇ ПАРНИКОВИХ ГАЗІВ У ЕНЕРГЕТИЧНОМУ СЕКТОРІ СІЛЕЗЬКОГО ВОЄВОДСТВА

GIS technology of spatial inventory of greenhouse gases (carbon dioxide, methane, etc.) in the energy sector of Silesia Region in Poland has been presented. Georeferenced databases, GIS software, and international inventory methodologies have been used. The mathematical models for inventory of carbon dioxide, methane and other greenhouse gases during the combustion of fuel in the production of electricity, in the residential sector, industry, construction, and transport have beencreated. These models allow to obtain the spatial distribution of total emissions of greenhouse gases of Silesia Region, taking into account the contribution of each region in the overall processes of emission.Представлено геоінформаційні технології просторової інвентаризації парникових газів (двоокису вуглецю, метану та ін.) в енергетичному секторі в Сілезькому воєводстві Польщі. Використано георозподілені бази даних, програмне забезпечення геоінформаційної системи та міжнародні методології інвентаризації. Розроблено математичні моделі для інвентаризації двоокису вуглецю, метану та інших парникових газів в процесі спалювання палива на виробництво електроенергії, в житловому секторі, у промисловості та будівництві, на транспорті. Ці моделі дали змогу отримати просторовий розподіл сумарних викидів парникових газів Сілезького воєводства з врахуванням внеску кожного району в загальні процеси емісії

Numerical approximation of a concrete carbonation model: study of the t\sqrt{t}-law of propagation

International audienceIn this paper, we are interested in the long time behavior of approximate solutions to a free boundary model which appears in the modeling of concrete carbonation [1]. In particular, we study the long time regime of the moving interface. The numerical solutions are obtained by an implicit in time and finite volume in space scheme. We show the existence of solutions to the scheme and, following [2, 3], we prove that the approximate free boundary increases in time following a $\sqrt{t}$-law. Finally, we supplement the study through numerical experiments

Improvement of local Resistance of Safety-Related Structures and Reduction of Dynamic Response due to Missile Impact Loading

Evaluation of the load-bearing and shielding capacity of safety-related structures not designed for missile impact loading (e.g. from aircraft crash) led to problem-specific investigations, conducted with the aim of establishing effective shielding, reinforcing and energy dissipation concepts. To ensure protection of structures against missile impact, emphasis was placed in this study not only on upgrading the penetration resistance of the structures in the impacted area, but also in particular on reducing the dynamic response induced by impact loads. Although a number of shielding concepts exist which are useful in a theoretical sense, only a few of these are of any practical significance due to the rather small region affected by impact loading and the rather high magnitude of the loads. Any shielding concept suitable for protecting a building against the impact of a missile (e.g. aircraft) over its entire outer surface must provide the target with homogeneous protection in the form of a jacket of high strength and high energy dissipation capacity. Of the various concepts investigated, the most promising seems to be that providing protection by means of hollow-wall designs or special shielding elements, both made of energy-absorbing high-quality steel-fiberreinforced concrete [1]. This paper covers studies of different local design concepts for the targeted regions and material parameters which have a strong influence on the penetration resistance as well as energy dissipation capabilities of the impacted building. Possibilities for reinforcing the outer shells of typical buildings not originally designed to withstand missile impact are also presented

Study of different titanosilicate (TS-1 and ETS-10) as fillers for Mixed Matrix Membranes for CO2/CH4 gas separation applications

Three titanosilicate zeolites were used as fillers for Mixed Matrix Membranes: (i) ETS-10, TS-1 having Si/Ti=100 and (iii) TS-1 using Si/Ti=25. Zeolite samples were characterized by X-Ray Diffraction, Scanning Electron Microscopy, Atomic Emission Spectroscopy, X-Ray Photoelectron Spectroscopy, and CO2 and CH4 adsorption isotherms. TS-1 particles showed a narrow size distribution ranging from 200 nm to 400 nm. In the case of ETS-10, the size distribution was broader ranging from 400 nm to 800 nm. Mixed Matrix Membranes were prepared using Matrimid (R) polyimide as continuous phase and filler loadings of 10, 20, and 30 wt%. Membranes were characterized by Thermogravimetric Analysis, Differential Scanning Calorimetry, and Scanning Electron Microscopy. The performances was measured at 8 bars of transmembrane pressure for CO2/CH4 mixed gases system at 50/50 vol/vol. concentration. Membranes using TS-1 (Si/Ti=25) as filler showed a maximum increase of 89.1% of CO2 permeability and 23.9% increase in separation factor. In the case of TS-1 (Si/Ti=100) only permeability increased significantly, with a maximum increase of 90.1%. Regarding the ETS-10 membranes, both permeability and separation factor increased slightly with respect to the reference polymeric membrane (22.5% in CO2 permeability and 7.8% in the separation factor). In conclusion, TS-1 (Si/Ti=25) is the most suitable filler for the use in Mixed Matrix Membranes for gas separation applications among the titanosilicate studied in this work

Pengolahan Sayur Wortel Menjadi Cemilan Sehat Chocotel (Chocolate Wortel) Kaya Gizi Non-Kolesterol

Saat ini sering ditemui permasalahan tentang kesehatan yang menyerang orang-orang berusia muda. Penyakit kolesterol, hipertensi, gagal ginjal yang banyak ditemui memiliki banyak penyebab, salah satunya adalah kurangnya konsumsi sayur dan buah. Tidak sedikit orang yang tidak suka sayur bahkan mereka enggan memakan sayur. Tentunya kesehatan akan terganggu, tidak optimal, dan rentan terserang penyakit. Wortel dan cokelat sangat baik untuk tubuh. Salah satu USAha yang dilakukan adalah mencampurkan wortel tersebut ke dalam cokelat. Dengan adanya pencampuran tersebut maka akan terbentuk sebuah cokelat baru yang memiliki kandungan gizi dan rasa yang lebih bervariasi. Produk cokelat wortel akan mempunyai kelebihan dibanding cokelat biasa yang sudah beredar dipasaran terutama dalam hal kandungan nutrisi maupun rasa. Peluang USAha cokelat wortel sangat besar mengingat bahan utamanya yaitu cokelat dan wortel yang mudah diperoleh dan dibuat. Pembuatan cokelat wortel merupakan salah satu cara bagi mahasiswa untuk menggali keterampilan, semangat dan jiwa kewirausahaan. Proses pembuatan cokelat wortel relatif mudah sehingga USAha ini sangat mungkin dilakukan dan dikembangkan mahasiswa serta masyarakat

Eculizumab is a safe and effective treatment in pediatric patients with atypical hemolytic uremic syndrome

Atypical hemolytic uremic syndrome (aHUS) is caused by alternative complement pathway dysregulation, leading to systemic thrombotic microangiopathy (TMA) and severe end-organ damage. Based on 2 prospective studies in mostly adults and retrospective data in children, eculizumab, a terminal complement inhibitor, is approved for aHUS treatment. Here we prospectively evaluated efficacy and safety of weight-based dosing of eculizumab in eligible pediatric patients with aHUS in an open-label phase II study. The primary end point was complete TMA response by 26 weeks. Twenty-two patients (aged 5 months-17 years) were treated; 16 were newly diagnosed, 12 had no prior plasma exchange/infusion during current TMA symptomatology, 11 received baseline dialysis, and 2 had prior renal transplants. By week 26, 14 achieved a complete TMA response, 18 achieved hematologic normalization, and 16 had 25% or better improvement in serum creatinine. Plasma exchange/infusion was discontinued in all, and 9 of the 11 patients who required dialysis at baseline discontinued, whereas none initiated new dialysis. Eculizumab was well tolerated; no deaths or meningococcal infections occurred. Bone marrow failure, wrist fracture, and acute respiratory failure were reported as unrelated severe adverse events. Thus, our findings establish the efficacy and safety of eculizumab for pediatric patients with aHUS and are consistent with proposed immediate eculizumab initiation following diagnosis in children