In this work, performance of hollow fiber membrane photobioreactor (HFMPB) on the growth of Dunaliella Salina (G26) at various aeration rates (0.1 and 0.2 VVm) and medium re-circulation flow rates (500 and 1000 mL/h) were studied. Cultivation was carried out at both batch and semi-continuous modes in HFMPBs containing neat and hydrophilized in-house fabricated poly ethylene (PE) membranes at fi...

Background: To assess microleakage in class II cavities restored with composite resins by using various placement techniques. Materials and methods: A total of 60 samples were enrolled, 10 each group. They divided into 6 groups. Scoring for the degree dye penetration at occlusal cervical walls evaluated. The results analyzed SPSS software. significance was determined p-value less than 0.05. Res...

An enumeration of the 1-crossing partitions of [n] into k blocks by bijection with ordered trees with n edges, k internal nodes, and root degree j = 4 is presented. A semi-bijection of these ordered trees to Dyck paths of semilength n, k peaks, and j = 4 last peak height is used to derive a conjectured formula for the number of 1-crossing partitions of [n] with k blocks. We also explore some na...

Background and Objectives: Skin laxity of the body is a growing cosmetic concern. Laxity can result from chronological or photoaging and changes in body dimensions during pregnancy or weight loss. The end result is loose, sagging skin, and localized fat deposits. Liposuction and abdominoplasty or brachioplasty are established approaches to these issues. Patient desire for alternatives to surgic...

Condén, E. 2014. Type D Personality. Psychometric Properties of the DS14 and Associations with Ill Health and Coronary Heart Disease in General and Clinical Populations. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine 1034. 74 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-9052-2. Type D personality, or distressed personality, refers to the jo...

Abstract. We build a concrete and natural model for the strict 2-category of orbifolds. In particular we prove that if one localizes the 2-category of proper etale Lie groupoids at a class of 1-arrows that we call “covers,” then the strict 2-category structure drops down to the localization. In our construction the spaces of 1and 2-arrows admit natural topologies, the space of morphisms (1-arro...

We discuss the fluid dynamical approach to nuclear giant resonances using imposed scahng type oscillations. We calculate the response of the intrinsic kinetic energy to the lsoscalar twist mode (a rrr = 2) quantum mechanically and show that for thxs mode as well as for the lowest normal parity modes (a rrr = 0 +, 1and 2+), the static single particle effects lead to the same restoring forces as ...

In this paper, we seek to formulate a geometrically based alternative to nonlinear, nonparametric regression. Hastie and Stuetzle (1989) introduced the ideas of principal curves and surfaces. These were 1and 2-dimensional non-linear regression-type estimators, which were consistent with respect to the mean, i.e. involved conditional expectations. We have developed a similar notion, but with two...