What is Actually Taking Place on Web Sites: E-Commerce Lessons from Web

ABSTRACT A prime business concern is knowing your customer. One legacy carried into the present from the earliest NCSA web servers is web server logs. While there are more powerful user tracking techniques, such as requiring logins or storing cookies, server logs remain a powerful tool in helping understand customer activity on a web site, and are the only tool when logins are not desirable or cookies are blocked by browsers or firewalls. This paper details the possibilities and pitfalls in using web server logs to understand customer behavior on a web site. Described here is the information recorded by the server, and what legitimate inferences can be made from that data. Special emphasis is given to case studies that demonstrate the interactions of the protocols HTTP and HTML, and how weaknesses in the current specification can confound the recorded data and lead to an incorrect analysis

Substitution amoung Labor, Capital and Energy for United States Manufacturers

A three input translog cost function in labor, capital and energy was estimated for 298 U.S. manufacturing industries for the years 1972 and 1976. A statistically significant change in the function was observed between these years indicating a change in technology occurred. The Allen Partial elasticity of substitutions for the inputs were calculated and the substitution possibilities between labor and energy and capital and energy had become easier. These calculations were repeated for subgroups of industries divided by fuel cost share, and for industries with 1% to 3% fuel cost share similar results occurred. For other subgroups, no change in technology was observed, and no pattern was apparent in the elasticities.No embargoAcademic Major: Mathematic

Thoughts about disordered thinking: measuring and quantifying the laws of order and disorder

Peer ReviewedPostprint (author's final draft

Community and Clinical Epidemiology of Borderline Personality Disorder

Several studies of the prevalence of Borderline Personality Disorder (BPD) in community and clinical settings have been carried out to date. Although results vary according to sampling method and assessment method, median point prevalence of BPD is roughly 1%, with higher or lower rates in certain community subpopulations. In clinical settings, BPD prevalence is around 10-12% in outpatient psychiatric clinics and 20-22% among inpatient clinics. Further research is needed to identify the prevalence and correlates of BPD in other clinical settings (e.g., primary care) and to investigate the impact of demographic variables on BPD prevalence

The Clinical Significance of Single Features of Borderline Personality Disorder: Anger, Affective Instability, Impulsivity, and Chronic Emptiness in Psychiatric Outpatients

Although dimensional models of borderline personality disorder (BPD) are consistent with findings showing that minimal levels of pathology are associated with substantial increases in psychosocial impairment, it is still unclear whether different individual BPD criteria are each clinically significant on their own. The current study uses semistructured interview data from 1,870 adults presenting for outpatient psychiatric treatment to investigate whether the BPD criteria of impulsivity, affective instability, emptiness, and anger are each related to psychosocial morbidity when met in the absence of the other eight criteria. Analyses showed that each of these criteria was associated with dysfunction in comparison with a control group meeting zero BPD criteria, but only the emptiness criterion was a marker of impairment on all indices of psychosocial morbidity: suicidality, history of suicide attempts and psychiatric hospitalizations, social and work dysfunction, Axis I comorbidity, and global functioning. Implications for the study of borderline pathology are discussed

The Role of Emotion Regulation Difficulties in the Connection Between Childhood Emotional Abuse and Borderline Personality Features

In the present report from the Rhode Island Methods to Improve Diagnostic Assessment and Services project, we examined the role of emotion dysregulation as a mediator between childhood abuse and borderline personality disorder (BPD) feature severity among a sample of 964 adults presenting for treatment at an outpatient clinic. A structural equation model suggested that emotional abuse relates to BPD features both directly and through difficulties with emotion regulation, whereas physical abuse showed only a weak indirect relation with BPD features. There was no link between sexual abuse and BPD feature severity in the model. Results add specificity to etiological theories of BPD and suggest that future research in treatment should focus on developing and strengthening emotion regulation strategies in clinical populations with a history of emotional abuse. Clinicians should be sure to assess the presence of childhood emotional abuse in addition to sexual and physical abuse

Experimental observation of high field diamagnetic fluctuations in Niobium

We have performed a magnetic study of a bulk metallic sample of Nb with critical temperature $T_{c}=8.5$ K. Magnetization versus temperature (M {\it vs} T) data obtained for fixed magnetic fields above 1 kOe show a superconducting transition which becomes broader as the field is increased. The data are interpreted in terms of the diamagnetic lowest Landau level (LLL) fluctuation theory. The scaling analysis gives values of the superconducting transition temperature $T_{c}(H)$ consistent with $H_{c2}(T)$% . We search for universal 3D LLL behavior by comparing scaling results for Nb and YBaCuO, but obtain no evidence for universality.Comment: 5 pages, 6 figures, Accepted for publication in Phys.Rev.

Linking the Practice Environment to Nurses' Job Satisfaction Through Nurse-Physician Communication

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/74776/1/j.1547-5069.2005.00063.x.pd

Performance/outcomes data and physician process challenges for practical big data efforts in radiation oncology

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/146290/1/mp13136.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/146290/2/mp13136_am.pd