Dynamics and structure of the Alpine Fold Belt

The structure and present-day dynamics of the Alps interms of geodesy and gravimetry are discusssed. A strong correlation of precise leveling and isostatic gravity along the central Alpine chain, especially in Canton Graubunden, East Switzerland are shown. It is assumed that the uplift is partly controlled by isostatic rebound effects. Field observations indicate that these phenomena are still active in the Alps. The study of the uplift processes by applying a number of geodetic and gravimetric measuring techniques, such as the determination of nonperiodic secular variations of gravity, of the deflections of the vertical and tilt changes monitored by hydrostatic leveling is proposed

Changes in the Capital Structure of Polish Companies During the Last Twenty Years (1997–2017)

Theoretical background: The capital structure is one of the most important areas in the modern theory of corporate finance. It has inspired the development of a large number of theoretical approaches, but a universally accepted theory of capital structure has not yet been developed. A common belief holds that companies try to achieve a stable capital structure in the long term; thus, companies that, at a given time, are characterised by a relatively low (or high) level of debt, also probably had the same level in previous periods.Purpose of the article: The main purpose of this paper is to provide answers to two basic questions: 1) How did the aggregate capital structure of the non-financial companies listed on the Warsaw Stock Exchange (WSE) change from 1997 to 2017?; 2) What factors are decisive for the companies’ capital structure and do the current trends in capital structure theory take account of them?Research methods: The research is carried out in two phases. In phase 1, the descriptive statistics method is applied to analyse how the capital structure of WSE-listed companies changed in the years 1997–2017. In phase 2, the capital structure determinants are examined using multiple regression models.Main findings: The capital structure of WSE companies varied significantly in the sample years, and overall, the debt ratios, total, short-, and long-term debt slightly increased. The causes of the changes were the economic environment factors (banking sector assets, government debt, and corporate income tax) and macroeconomic circumstances, along with the companies’ characteristics. Among the latter, the company’s profitability and the share of fixed assets in total assets usually turned out to be statistically significant.Theoretical background: The capital structure is one of the most important areas in the modern theory of corporate finance. It has inspired the development of a large number of theoretical approaches, but a universally accepted theory of capital structure has not yet been developed. A common belief holds that companies try to achieve a stable capital structure in the long term; thus, companies that, at a given time, are characterised by a relatively low (or high) level of debt, also probably had the same level in previous periods.Purpose of the article: The main purpose of this paper is to provide answers to two basic questions: 1) How did the aggregate capital structure of the non-financial companies listed on the Warsaw Stock Exchange (WSE) change from 1997 to 2017?; 2) What factors are decisive for the companies’ capital structure and do the current trends in capital structure theory take account of them?Research methods: The research is carried out in two phases. In phase 1, the descriptive statistics method is applied to analyse how the capital structure of WSE-listed companies changed in the years 1997–2017. In phase 2, the capital structure determinants are examined using multiple regression models.Main findings: The capital structure of WSE companies varied significantly in the sample years, and overall, the debt ratios, total, short-, and long-term debt slightly increased. The causes of the changes were the economic environment factors (banking sector assets, government debt, and corporate income tax) and macroeconomic circumstances, along with the companies’ characteristics. Among the latter, the company’s profitability and the share of fixed assets in total assets usually turned out to be statistically significant

Lexicographic shellability, matroids and pure order ideals

In 1977 Stanley conjectured that the $h$-vector of a matroid independence complex is a pure $O$-sequence. In this paper we use lexicographic shellability for matroids to motivate a combinatorial strengthening of Stanley's conjecture. This suggests that a pure $O$-sequence can be constructed from combinatorial data arising from the shelling. We then prove that our conjecture holds for matroids of rank at most four, settling the rank four case of Stanley's conjecture. In general, we prove that if our conjecture holds for all rank $d$ matroids on at most $2d$ elements, then it holds for all matroids

Educators' working conditions in a day care centre on ownership of a non-profit organization

Background: Working conditions of nursery school teachers have not been scrutinized thoroughly in scientific research. Only a few studies have so far examined work-load and strain in this profession. Preferably, subjective perceptions should be corroborated by data that can be quantified more objectively and accurately. The aim of the present observational field study was to evaluate pedagogical staffs' workflow. Methods: In 2009 eleven educators in a day care centre were observed throughout three complete workdays. A total of 250 working hours were recorded. Results: An educators' workday lasted on average 07:46:59 h (SD = 01:01:10 h).Within this time span, an average of 02:20:46 h (30.14%, SD = 00:28:07 h) were spent on caring, 01:44:18 h on playing (22.33%, SD = 00:54:12 h), 00:49:37 h on educational work (10.62%, SD = 00:40:09), and only 00:05:38 h on individual child contact (1.21%, SD = 00:04:58 h). Conclusion: For the first time, educators' workflow in day care centres was studied in real time. Some of the educators' self-reported problems were corroborated. The results of this study form a basis upon which further investigations can be built and measures can be developed for an overall improvement of child care

Middle infrared remote sensing for geology

The middle infrared portion of the spectrum available for geologic remote sensing extends from approximately 3 to 25 micrometers. The source of energy is thermal radiation from surface materials and ambient terrestrial temperatures. The spectral range of usefulness is limited by both the amount of energy available and by transmission of energy through the atmosphere. The best atmospheric window lies between about 8 and 14 micrometers. Remote sensing of the Earth in the infrared is just on the threshold of becoming a valuable geologic tool. Topics which need study include: (1) the used and limitations of the 8 to 14 micrometer region for distinguishing between silicates and nonsilicates; (2) theoretical and experimental understanding of laboratory spectra of rocks and minerals and their relationship to remotely sensed emission spectra; and (3) the possible use of the 3 to 5 and 17 to 25 micrometer portions of the spectrum for remote sensing

Tamar’s Legacy: The Early Reception of Genesis 38

The story of Tamar and Judah is one of the Torah’s more morally complicated narratives. As such, interpreters throughout history, but specifically early Jewish interpreters, grappled with how to relay this story in their translations of the Hebrew Bible. Using the theories and methods of reception history, this study demonstrates how the translations these early interpreters produced shed light on the dynamic relationship between a text and those who interpret it. Examining both the Greek Septuagint and Aramaic Targumim, the study identifies places in the translations where hints of the socio-historical position and theological commitments of the translators and their communities are woven into the Greek and Aramaic versions of the text

Thermal-infrared spectral observations of geologic materials in emission

The thermal-infrared spectra of geologic materials in emission were studied using the prototype Thermal Emission Spectrometer (TES). A variety of of processes and surface modifications that may influence or alter the spectra of primary rock materials were studied. It was confirmed that thermal emission spectra contain the same absorption features as those observed in transmission and reflection spectra. It was confirmed that the TES instrument can be used to obtain relevant spectra for analysis of rock and mineral composition