Instabilities of Electroweak Strings

We investigate the instabilities of low winding number electroweak strings using standard numerical techniques of linear algebra. For strings of unit winding we are able to confirm and extend existing calculations of the unstable region in the ($m_H/m_W,\sin^2\theta_W$) plane. For strings of higher winding number we map the unstable regions for the various decay modes.Comment: Latex, 11 pages, 1 uuencoded figur

Once More on a Colour Ferromagnetic Vacuum State at Finite Temperature

The spontaneous vacuum magnetization at finite temperature is investigated in SU(2) gluodynamics within a consistent effective potential approach including the one-loop and the correlation correction contributions. To evaluate the latter ones the high temperature limits of the polarization operators of charged and neutral gluon fields in a covariantly constant magnetic field and at high temperature are calculated.The radiation mass squared of charged gluons is found to be positive. It is shown that the ferromagnetic vacuum state having a field strength of order $(gH)^{1/2} \sim g^{4/3} T$ is spontaneously generated at high temperature. The vacuum stability and some applications of the results obtained are discussed.Comment: 16 pages, 2 figures, subm. to Nucl. Phys.

Ring diagrams and electroweak phase transition in a magnetic field

Electroweak phase transition in a magnetic field is investigated within the one-loop and ring diagram contributions to the effective potential in the minimal Standard Model. All fundamental fermions and bosons are included with their actual values of masses and the Higgs boson mass is considered in the range $75 GeV \leq m_H \leq 115 GeV$. The effective potential is real at sufficiently high temperature. The important role of fermions and $W$-bosons in symmetry behaviour is observed. It is found that the phase transition for the field strengths $10^{23} - 10^{24}$G is of first order but the baryogenesis condition is not satisfied. The comparison with the hypermagnetic field case is done.Comment: 16 pages, Latex, changed for a mistake in the numerical par

Trapping virtual pores by crystal retro-engineering

Stable guest-free porous molecular crystals are uncommon. By contrast, organic molecular crystals with guest-occupied cavities are frequently observed, but these cavities tend to be unstable and collapse on removal of the guests—this feature has been referred to as ‘virtual porosity’. Here, we show how we have trapped the virtual porosity in an unstable low-density organic molecular crystal by introducing a second molecule that matches the size and shape of the unstable voids. We call this strategy ‘retro-engineering’ because it parallels organic retrosynthetic analysis, and it allows the metastable two-dimensional hexagonal pore structure in an organic solvate to be trapped in a binary cocrystal. Unlike the crystal with virtual porosity, the cocrystal material remains single crystalline and porous after removal of guests by heating

Institutional Characteristics as Expressed in Selected Writings of Thomas Robert Malthus

This investigation is concerned primarily with describing some characteristics of the institutionalist school of economic theory and then relating these characteristics to the writings of Thomas Robert Malthus. Thus in the course of this thesis two distinct sections are developed: one describing what are felt to be the outstanding characteristics of institutionalism and the second relating these characteristics directly to Malthus

Rural Health Professions (RHP): Development and initial assessment of an interprofessional education program

Purpose: Describe the development and integration of an interprofessional Rural Health Professions (RHP) Program. Discuss the initiation and innovative features of this unique program: history, curriculum, assessment and preliminary results. Background: Nearly all disciplines have emphasized interprofessional education as a critical education component. For the past 20 years, theUniversity ofIllinois College Of Medicine atRockford has successfully recruited, produced and retained rural physicians forIllinois through the Rural Medical Education (RMED) Program. Historically, this campus has housed a medical school; five years ago the Illinois Board of Higher Education approved the interdisciplinary-focusedNationalCenter for Rural Health Professions (NCRHP). The site is now designated a “health sciences education” campus of theUniversity ofIllinois. Description of Intervention or Program: The RHP Program was developed over five years. The Rural Pharmacy Education (RPHARM) Program was created to move the NCRHP mission forward. The single discipline RMED Program was expanded and became the interdisciplinary RHP Program (RMED and RPHARM students). Planning is underway to include disciplines such as nursing, social work, public health and dentistry. All students enrolled in the program completed an orientation survey to obtain perspectives and background demographics. Results: A formal recruitment and admissions process and a curriculum based on the longstanding RMED curriculum were developed; an assessment strategy was also created. Twenty-two students and 26 students were accepted into the RHP Program for the classes 2014 and 2015. Approximately 90% of RHP students were from rural areas. Conclusions: Student responses to baseline surveys indicate a positive orientation toward rural community health and participation in a curriculum teaching these principles. The RHP Program is a promising interprofessional approach to preparing healthcare providers who will locate or stay in rural areas. Relevance to interprofessional education or practice: Beneficial for interprofessional rural education: recruitment, retention and practice of professionals. Learning Objectives: To compare and contrast various programs and activities within an interprofessional rural healthcare program To describe how to recruit students into an interprofessional rural healthcare program To recall current students’ perspectives on rural healthcare and the RHP progra