Some first-order perturbation energy values

First order perturbation energy value

Finite-mass helium atoms. ii- the 23p state plus

Energy states of helium isoelectronic series investigated by 50-term variational wave function with two nonlinear parameter

Credit Management Strategies for Small Firms

When a small firm sells goods or services to another firm, it generally grants trade credit to the buyer for these purchases. While the acade1nic and practitioner literature on credit management for large firms is voluminous, there is little in this literature which suggests appropriate credit Management strategies, given the particular characteristics of the small firm. Several characteristics of small firms can lead to advantageous credit policies which are different from larger firms. Among these are returns-to-scale problems in adopting several credit management strategies, Management which has limited expertise in finance, and restricted access to outside financing. In this paper, the effects of these differences on trade credit strategy are considered. Four areas of credit strategy are analyzed: credit investigation and risk assessment, credit-granting decisions, collections, and bearing credit risk. The paper presents and critiques trade credit policies for the small firm in each of these areas, including policy alternatives which involve the outsourcing of one or more aspects  of  credit management

Elements of Proximal Formative Assessment in Learners’ Discourse about Energy

Proximal formative assessment, the just-in-time elicitation of students\u27 ideas that informs ongoing instruction, is usually associated with the instructor in a formal classroom setting. However, the elicitation, assessment, and subsequent instruction that characterize proximal formative assessment are also seen in discourse among peers. We present a case in which secondary teachers in a professional development course at SPU are discussing energy flow in refrigerators. In this episode, a peer is invited to share her thinking (elicitation). Her idea that refrigerators move heat from a relatively cold compartment to a hotter environment is inappropriately judged as incorrect (assessment). The instruction (peer explanation) that follows is based on the second law of thermodynamics, and acts as corrective rather than collaborative

Congruences satisfied by eta-quotients

The values of the partition function, and more generally the Fourier coefficients of many modular forms, are known to satisfy certain congruences. Results given by Ahlgren and Ono for the partition function and by Treneer for more general Fourier coefficients state the existence of infinitely many families of congruences. In this article we give an algorithm for computing explicit instances of such congruences for eta-quotients. We illustrate our method with a few examples.Comment: Final version, published in Proceedings of the AM

Financing the Small Firm Start-Up: Determinants of Debt Use

While academic research concerning capital structure of large corporations has been abundant in the finance literature, studies of small firms have been somewhat less common, and investigation of capital structure at origin (start-up) has been virtually nil. In this paper we present empirical evidence concerning the start-up capital structures of small firms. We base this investigation upon characteristics of both owner and firm. We find the percent of the owner\u27s income expected to be derived from the business to be positively associated with debt use and the owner\u27s age to be negatively associated with debt use. We find that more debt is obtained if the business owner is married and less if he or she is black. Similarly, more debt is prevalent among start-up firms in transportation and utilities than those in other industries. When debt obtained from other than financial institutions is considered, factors such as gender, experience, education, and expected firm size also play a role in the structure of start-up capital