On mapping functions for torsional analysis of splined shafts

Mapping functions for torsional analysis of splined shaft

Are Green Roofs an Answer to New York City's Combined Sewer Overflow Problem?: Using Stormwater Utility Fees to Incentivize Green Roofs

Impervious surfaces comprise nearly 70% of New York City’s land mass and contribute to runoff, ultimately becoming Combined Sewer Overflow (CSO) that is discharged through hundreds of outfalls to local waterways. This thesis has explored the viability of green infrastructure to manage stormwater runoff in New York City by using stormwater utility fees to incentivize green roofs. This research posits that implementing stormwater utility fees that are based on percentage of impervious cover on a parcel could incentivize the presence of green infrastructure, and specifically green roofs. This study aggregated and expanded upon a report done by The Urban Design Lab in 2012, which provided a baseline for creating a methodology to generate a series of query expressions within available PLUTO data. This formed a foundation on which a matrix was created to determine what this research calls “structurality” of buildings, through conducting a series of calculations to determine which borough(s) had buildings that were most amenable to accommodating green roofs. Using that data as a launching point, research conducted by teams led by Dr. Gaffin and Dr. Rosenzweig at the Earth Institute provided a foundation for exploring the possible rates of retention for green roofs in New York City. Publicly available city and state initiatives, as well as scholarly research and scientific reports were also consulted for this research. Lastly, this thesis was guided by literature published by the U.S. Environmental Protection Agency that focused on different methodologies for implementing stormwater utility fees, and looked at 23 municipalities with such fees. Focusing on Seattle as an example, this study presented two possible recommendations for developing a stormwater utility fee appropriate for New York City

Pancreatic islet transplantation: an update.

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SBV regularity for Hamilton-Jacobi equations in Rn\mathbb R^n

In this paper we study the regularity of viscosity solutions to the following Hamilton-Jacobi equations $$\partial_t u + H(D_{x} u)=0 \qquad \textrm{in} \Omega\subset \mathbb R\times \mathbb R^{n} .$$ In particular, under the assumption that the Hamiltonian $H\in C^2(\mathbb R^n)$ is uniformly convex, we prove that $D_{x}u$ and $\partial_t u$ belong to the class $SBV_{loc}(\Omega)$.Comment: 15 page

Nicotinamide and calcipotriol counteract UVB-induced photoaging on primary human dermal fibroblasts

Background: Photoaging is mainly caused by ultraviolet radiations inasmuch they can damage the DNA, trigger ROS production, and activate p53/p21 pathway, which cause cell cycle arrest and senescence. The accumulationof senescent cells within the dermis contributes to tissue deregulation and skin carcinogenesis. However, the use of photoprotector molecules could reduce UV-induced damages and prevent photoaging. Therefore, the aim of this study is to evaluate whether the active forms of vitamin B3 (nicotinamide) and the analog of vitamin D3 (calcipotriol) might protect primary human dermal fibroblasts (HDFs) from UVB-induced photoaging. Methods: HDFs were isolated from a healthy adult donor and stimulated with nicotinamide (25 μM) and calcipotriol (100 nM) for 24h before UVB exposure, and then, cultured for further 24h on vitamin-supplemented media. Then, cell viability, ROS production, DNA damages, senescence markers, protein and gene expression were evaluated. Results: HDFs treated with nicotinamide and calcipotriol showed better proliferation properties and lower DNA damages due to a reduced UVB-induced ROS production. Consequently, p53/p21 pathway was less active which enhanced cell cycle progression and reduced senescence and cell death. Conclusions: Overall, our results suggest that nicotinamide and calcipotriol can counteract UVB-induced effects responsible for the onset of skin photoaging

Correction to: Vitamin K effects in human health: new insights beyond bone and cardiovascular health

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SAGUNTO (Valencia). Batallas. 1823 (1811). 1:50.000

Precede al tit.: Le Sezioni di Livello s'intendono di 4 Metri equidistanti. Tav. VGrabado firmado al verso por el autorOrientado con flecha y rosa de 8 vientosRelieve representado por curvas de nivel, normales y sombreadoTabla de signos convencionales para indicar la situación de las tropasLeyenda explicativa sobre el asedioTexto en la parte inferior: Il Rapporto fra la scalla e il vero é di 1 a 4000