PoisFFT - A Free Parallel Fast Poisson Solver

A fast Poisson solver software package PoisFFT is presented. It is available as a free software licensed under the GNU GPL license version 3. The package uses the fast Fourier transform to directly solve the Poisson equation on a uniform orthogonal grid. It can solve the pseudo-spectral approximation and the second order finite difference approximation of the continuous solution. The paper reviews the mathematical methods for the fast Poisson solver and discusses the software implementation and parallelization. The use of PoisFFT in an incompressible flow solver is also demonstrated

Synthesis And Characterization Of Novel Ternary Borides (MoAlB) And Their Composites

This work details the synthesis and characterization of novel ternary boride (MoAlB) and MAX phase particulates via pressureless reaction. Furthermore, porous MoAlB particulates were synthesized for the first time by selective deintercalation of Al from MoAlB. Finally, novel Ni-MoAlB composites were fabricated, and their mechanical and tribological properties were tested and analyzed. Chapter II describes the synthesis of Cr2AlC, Cr2GaC, and V2AlC powders, and demonstrates the ability to engineer particle size of Ti3SiC2 by ball milling. Chapter III details the synthesis and characterization of a novel ternary boride, MoAlB, and their porous derivatives. These particulates showed a uniquely stacked 2D-like morphology and were riddled with pores of dimensions 257±126 nm and 35±10 nm, respectively. The EDS analysis showed that particulates had a chemistry of (Mo0.67Al0.33)B{O0.19F0.02} due to partial deintercalation of Al from MoAlB. Chapter IV chronicles the fabrication of novel Ni-matrix composites using MoAlB powders as a multifunctional solid lubricant additive. During sliding against SS, the WR decreased gradually with MoAlB content, for example, it decreased from 3 x 10-3 mm3/Nm in Ni (240 MPa) to ~2 x 10-4 mm3/Nm in Ni-30%MoAlB (1000 °C) (240 MPa). Chapter V discusses the conclusions and future studies of this wor

Derivation of a method to determine reactions and deflection of a continous beam on an elastic foundation

“The purpose of this thesis is to develop a method for determining the reactions and deflection curve of continuous beams partially supported by an elastic foundation. The method involves representation of an arbitrary loading and the intermediate redundant reactions as Fourier Series. Redundant intermediate reactions are determined by the solution of an equal number of linear equations. The remaining reactions are determined by the application of statics. This same method can be used for simply supported beams on an elastic foundation and for continuous beams without an elastic foundation”--Abstract, page ii

TRANSITIONING A HAND THERAPY CLINIC FROM TRADITIONAL PAPER HOME PROGRAMS TO AN ELECTRONIC PLATFORM: A QUALITY IMPROVEMENT PROJECT

Individuals with upper extremity conditions who receive occupational therapy within the hand therapy context are often provided with paper or electronic home programs (HPs) as part of their rehabilitation protocol. Electronic HPs may promote greater adherence and functional improvements than paper handouts, as they can accommodate various learning styles and address patient barriers (Chung et al., 2020; Harte & Law, 2019; Lambert et al., 2017; Nussbaum et al., 2019; Toci et al., 2021; Valdes et al., in press). Despite evidence showing positive patient satisfaction and outcomes as a result of using electronic HPs, some occupational therapy practitioners (OTPs) may be hesitant to use a new online system (Corey, 2019; Choi et al., 2019; Svingen et al., 2021). The purpose of this scholarly project is to help transition an outpatient hand therapy clinic from using traditional paper HPs to using MedBridge by offering therapists educational resources. Several methods were used to understand the potential impact of this project on patient care and to understand practitioners’ opinions regarding MedBridge. The person-environment-occupation (PEO) model and the plan-do-study-act (PDSA) quality improvement (QI) method were considered throughout the literature review and formation of the product (Law et al., 1996; Taylor et al., 2014). An in-service presentation was provided to orient therapists to basic functions when using MedBridge HPs. Additionally, the MedBridge Home Exercise Program User Guide was developed which provides an in-depth explanation of the purpose of each function and how to use it, and the MedBridge Home Exercise Program Quick Reference card offers a brief overview of the necessary steps in building a home program. It is anticipated that the resources made available to therapists on MedBridge as well as the user guide will increase therapists’ use of electronic HPs which may improve overall patient satisfaction and functional outcomes

Vybrané problémy nefunkčních států a situace v ČR

Dysfunctional states became the part of geopolitical situation. Their numbers and importance increased in last twenty years. Although dysfunctional states is legacy of the Cold War rather than product of today, their existence should be noted and to decide what to do with this undesirable phenomenon in the future. Related events of failed states are concepts of radicalism, extremism and terrorism

Influence of Mining Activity on Selected Landslide in the Ostrava-Karviná Coalfield

The paper deals with the impact of undermining on the slope deformation Doubrava Vrchovec. For the evaluation of the impact, isocatabase maps, terrain deformation parameters calculated for slope deformation, length measuring by zone extensometry and dilatometric measuring in the cracks of an asphalt road have been used. The length and dilatometric measuring identified the direction of slope deformation movement corresponding to the direction of rock mass movement as the consequence of undermining. With regard to the fact a change in the longitudinal relative deformation values in the direction of the subsidence slope gradient was evaluated (in the direction of the slope deformation movement). During the monitored period, terrain surface compression occurred, which manifests the position of the slope deformation in the concave portion of the subsidence slope. This fact probably induces additional strain from undermining in the slope deformation, which may worsen its stability conditions

Effectiveness of Kind Behavior Promotion in Bullying Prevention Among School-Aged Adolescents

Bullying is an important and prevalent issue among school-aged adolescents and adolescents. The highest rates of bullying were reported in middle schools, followed by high schools, combined schools, and primary schools, respectively. Approximately 1 in 5 high school students experience bullying at school and about 1 in 6 experience cyberbullying. The rates of bullying also differ between groups of individuals. LGBTQ+ students are more likely to be bullied than their heterosexual counterparts, females are more likely to be bullied than males, and White students reported higher rates of bullying than Hispanic and Black students (Centers for Disease Control and Prevention [CDC], 2018). School-aged adolescents were chosen as the population of interest due to the increased frequency of bullying behaviors in middle and high schools

Study on the Impacts of Emergency on Economic, Environmental and Social Areas Using Mixed Methods Research

Mixed methods research methodology appears to be a suitable approach for researching complex phenomena such as emergencies. Researchers study the impacts on different areas such as economy, society, or environment, mostly in separate studies. To better understand the reality of emergencies, it is necessary to study the problem in the broadest possible context. So, examining those impacts in one single study is a challenge. The objective of this article is to process a comprehensive assessment of an emergency that has the potential to establish the basis of a robust tool for public managers to support their decision-making, using mixed methods research methodology. The crisis is an explosion of an ammunition storage site in the Czech Republic - the former satellite country of the Soviet Union. The sub-methods used in mixed methods research are analysis of data, interviews, questionnaire surveys, and field research. The main findings include that in the economic area, growth of public budget expenditures was found; in the environmental area, primary and inducted impacts have been proved. Survey also confirms that the emergency reduced the personal sense of security and trust in public institutions in the affected community. Doi: 10.28991/ESJ-2022-06-01-07 Full Text: PD

HUBUNGAN PERILAKU PEMBERANTASAN SARANG NYAMUK DENGAN MENUTUP, MENGURAS DAN MENDAUR ULANG PLUS (PSN 3M PLUS) TERHADAP KEJADIAN DEMAM BERDARAH DENGUE (DBD) DI KELURAHAN ANDALAS

ABSTRACT THE CORRELATION BETWEEN PSN 3M PLUS BEHAVIOR WITH DENGUE HEMORRHAGIC FEVER (DHF) INCIDENCE IN ANDALAS REGION By Fuka Priesley Dengue Hemorrhagic Fever (DHF) is an infectious disease cause by dengue virus which is transmitted by Aedes aegypti as a vector. PSN 3M Plus is an act of controlling DHF by making effort to eradicate and avoid mosquito breeding and bites. Behavior of PSN 3M Plus can break the chain of dengue virus transmission so that the expected result is the decrease of DHF incidence. This study aims to determine the relationship between PSN 3M Plus behavior and DHF incidence in Andalas Region. This research is an analytic observational research with case control design conducted from November 2017 – December 2017. Data conducted by using questionnaire about PSN 3M Plus behavior to 28 case group and 56 from control group respondents with purposive sampling technique. The result of univariate analysis showed that the frequency distribution of PSN 3M Plus category in the case group were 7 respondents (16%) have good behavior and 21 respondents (52,5%) have bad behavior. While in the control group the were 37 respondents (84%) have good behavior and 19 respondent (47,5%) have bad behavior. The result of bivariate analysis obtained OR =5,842 p-value =0,001 showed significant correlation between PSN 3 M Plus behavior with DHF incidence in Andalas Region. Key Words : DHF, DHF incident, PSN 3M Plus ABSTRAK HUBUNGAN PERILAKU PEMBERANTASAN SARANG NYAMUK DENGAN MENUTUP, MENGURAS DAN MENDAUR ULANG PLUS (PSN 3M PLUS) TERHADAP KEJADIAN DEMAM BERDARAH DENGUE (DBD) DI KELURAAN ANDALAS Oleh : Fuka Priesley Demam Berdarah Dengue (DBD) adalah penyakit infeksi oleh virus dengue yang ditularkan melalui vektor nyamuk Aedes aegypti. PSN 3M Plus merupakan tindakan pengendalian DBD dengan melakukan upaya memberantas sarang nyamuk dan menghindari diri dari gigitan nyamuk Aedes. Perilaku PSN 3M Plus dapat memutus rantai penularan virus dengue sehingga hasil yang diharapkan adalah penurunan kejadian DBD. Penelitian ini bertujuan untuk mengetahui hubungan perilaku PSN 3M Plus dengan kejadian DBD di Kelurahan Andalas. Penelitian ini merupakan penelitian analitik dengan jenis kasus kontrol yang dilakukan pada November 2017- Desember 2017. Pengumpulan data menggunakan kuesioner tentang perilaku PSN 3 M Plus kepada 28 responden kelompok kasus dan 56 responden kelompok kontrol dengan teknik pengambilan sampel secara purposive sampling. Hasil analisis univariat didapatkan distribusi frekuensi kategori perilaku PSN 3M Plus pada kelompok kasus terdapat 7 responden (16%) berperilaku baik dan 21 responden (52,5%) berperilaku buruk. Sedangkan pada kelompok konrol terdapat 37 responden (84%) berperilaku baik dan 19 responden (47,5%) berperilaku buruk. Hasil analisis bivariat didapat RO =5,842 p-value = 0,001 yang berarti terdapat hubungan bermakna antara perilaku PSN 3M Plus dengan kejadian DBD di Kelurahan Andalas. Kata Kunci : DBD, Kejadian DBD, PSN 3M Plu

Výzkum aplikace dynamické penetrace pro zlepšení možnosti inženýrskogeologického průzkumu v Ostravské pánvi

The study deals with a dynamic penetration representing a field survey method using which according to a resistance occurred during penetration of rods provided with a tip into the soils being surveyed their selected physical or mechanical properties and layers interface are investigated. The dynamic penetration is performed so that the rods are driven in by hammer strokes with a specified mass and height of drop, during which time the number of strokes is recorded required for penetration of rods of a specified length (as a rule 10-20 cm). A measured characteristics is a specific dynamic penetration resistance representing the tip resistance in the dynamic penetration test. A study localization is bound to a chosen part of the Ostrava Basin. A goal of the study is an investigation of an application of the dynamic penetration in a chosen part of the Ostrava Basin for needs of improvement of engineering geological investigation possibilities in this area, hereat typical dynamic resistances for corresponding categories of foundation soils were investigated.Studie se zabývá dynamickou penetrací představující polní průzkumnou metodu, při které se na základě odporu při vnikání soutyčí opatřeného hrotem do zkoumaných zemin zjišťují jejich vybrané fyzikální nebo mechanické vlastnosti a rozhraní vrstev. Dynamická penetrace se provádí zarážením soutyčí údery kladiva s předepsanou hmotností a výškou pádu, přičemž se zaznamenává počet úderů potřebných na vniknutí soutyčí o předepsané délce (obvykle 10-20 cm). Měřenou charakteristikou je měrný dynamický penetrační odpor, který představuje odpor hrotu při dynamické penetrační zkoušce. Lokalizace studie je vázána na vybranou část Ostravské pánve. Cílem studie je studium aplikace dynamické penetrace ve vybrané části Ostravské pánve pro potřeby zlepšení možností inženýrskogeologického průzkumu v této oblasti, přičemž byly studovány typické dynamické odpory pro odpovídající třídy základových půd