THE ESTERASES OF MOUSE BLOOD *

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/73169/1/j.1749-6632.1961.tb35579.x.pd

MP716: New Forestry in Eastern Spruce-Fir Forests: Principles and Applications to Maine

Eastern North America\u27s spruce-fir forests have a unique ecological and human history which is reflected in their current vegetation, ownership patterns, and forest management practices. Furthermore, there are important differences within the region between the true boreal forest and the sub-boreal Acadian forest; this paper emphasizes the Acadian forest. Applying New Forestry to this region will require a modified approach which we outline by describing three basic principles. First, to provide the landscape context for New Forestry, we propose a triad of forest land allocation in which reserves and plantations would co-exist, surrounded by and embedded within a landscape managed by alternative silvicultural systems based on New Forestry principles. The second principle is that silvicultural systems should be patterned after local natural disturbance regimes. The third principle is that ecosystems that have been altered by past practices should be restored. Implementing these principles is discussed in a review of specific silvicultural practices: conservation and restoration of seed sources; retention of residual trees; long rotations; limited whole-tree harvesting; and two-aged stands maintained by irregular shelterwood cutting. At the landscape level we discuss how the triad might be implemented and the importance of size and distribution of harvest areas and riparian zones.https://digitalcommons.library.umaine.edu/aes_miscpubs/1027/thumbnail.jp

Transforming Business Education: 21st Century Sustainable MBA Programs

Business education should give students the skills to solve complex global challenges. It should align management practices with goals for a sustainable future. Sadly, few management schools even discuss the real issues business leaders face today. This article challenges others to develop a curriculum that embeds sustainability in the core of their programs. The authors argue that faculty and business school leadership should move beyond “saddlebag” initiatives that bolt sustainability onto the traditional, shareholder primacy-driven core. This article profiles three programs as case studies transforming business education to prepare leaders to achieve a more sustainable world. Business schools are torn between competing paradigms. Given the existential challenges facing humanity, business schools will have to change or simply lose relevancy. Our stories of disruption give evidence of success and hope for the coming transformation of business education and of capitalism itself. The lessons learned and insights in this article provide guidance for business school leaders aspiring to redefine management for global sustainability and business school programs. It is an open invitation for others to disrupt and rethink business education before it is too late

Transforming Business Education: 21st Century Sustainable MBA Programs

Business education should give students the skills to solve complex global challenges. It should align management practices with goals for a sustainable future. Sadly, few management schools even discuss the real issues business leaders face today. This article challenges others to develop a curriculum that embeds sustainability in the core of their programs. The authors argue that faculty and business school leadership should move beyond “saddlebag” initiatives that bolt sustainability onto the traditional, shareholder primacy-driven core. This article profiles three programs as case studies transforming business education to prepare leaders to achieve a more sustainable world. Business schools are torn between competing paradigms. Given the existential challenges facing humanity, business schools will have to change or simply lose relevancy. Our stories of disruption give evidence of success and hope for the coming transformation of business education and of capitalism itself. The lessons learned and insights in this article provide guidance for business school leaders aspiring to redefine management for global sustainability and business school programs. It is an open invitation for others to disrupt and rethink business education before it is too late

The Pathogenesis of Tuberculosis: The Early Infiltrate of Post-primary (Adult Pulmonary) Tuberculosis: A Distinct Disease Entity

It has long been recognized that tuberculosis (TB) induces both protective and tissue damaging immune responses. This paper reviews nearly two centuries of evidence that protection and tissue damage are mediated by separate disease entities in humans. Primary TB mediates protective immunity to disseminated infection while post-primary TB causes tissue damage that results in formation of cavities. Both are necessary for continued survival of Mycobacterium tuberculosis (MTB). Primary TB has been extensively studied in humans and animals. Post-primary TB, in contrast, is seldom recognized or studied. It begins as an asymptomatic early infiltrate that may resolve or progress by bronchogenic spread to caseous pneumonia that either fragments to produce cavities or is retained to produce post-primary granulomas and fibrocaseous disease. Primary and post-primary TB differ in typical age of onset, histopathology, organ distribution, x-ray appearance, genetic predisposition, immune status of the host, clinical course and susceptibility to protection by BCG. MTB is a highly successful human parasite because it produces both primary and post-primary TB as distinct disease entities in humans. No animal reproduces this sequence of lesions. Recognition of these facts immediately suggests plausible solutions, animal models and testable hypotheses to otherwise inaccessible questions of the immunity and pathogenesis of TB

Exposing Pharmacy Students to Public Health Concepts through Volunteering in the Medical Reserve Corps

Pharmacy students at the University of Kansas School of Pharmacy’s regional campus were exposed to the Medical Reserve Corps (MRC), a volunteer-based network that organizes locally to improve the health and safety of their communities. The school partnered with the local Medical Reserve Corps to provide students’ opportunities to fulfill co-curricular requirements and facilitate an application-based learning environment for public health concepts. The objective of the study was to explore the relationship between volunteering in the MRC and pharmacy students’ ability to meet educational outcomes and reinforce beliefs about their profession’s role in public health. Twenty-one students completed a survey addressing their ability to meet educational outcomes and identify the role of pharmacists in public health. Pharmacy students strongly agreed their past participation (mean 4.57) and future volunteering (mean 4.48) within the MRC would continue to help them better understand their role in public health. Pharmacy students strongly agreed (means ranging from 4.43 to 4.71) that they were able to fulfill educational outcomes related to knowledge, skills, and attitudes pharmacy graduates should possess. The positive responses gathered warrants expanding the partnership to include more student healthcare disciplines as well as looking for further opportunities to engage students in public health initiatives. Pharmacy schools should look to adopt similar partnerships with MRC units

Toxicity of Carbon Nanotubes in the Lungs of Mice 7 and 90 Days After Intratracheal Instillation

Single-walled carbon nanotubes have many potential applications in the electronic, computer, and aerospace industries. Because unprocessed nanotubes could become airborne and potentially reach the lungs, their pulmonary toxicity was investigated. The three products studied were made by different methods, and contained different types and amounts of residual catalytic metals. Mice were each intratracheally instilled once with 0,0.1 or 0.5 mg of nanotubes, a carbon black negative control, or a quartz positive control, and killed for histopathological study 7 d or 90 d after the treatment. All nanotube products induced epithelioid granulomas and, in some cases, interstitial inflammation in the animals of the 7 -d groups. These lesions persisted and were worse in the 90-d groups. We found that, if nanotubes reach the lung, they can be more toxic than quartz, which is considered a serious occupational health hazard in chronic inhalation exposures

Interpersonal prosodic correlation in frontotemporal dementia.

Communication accommodation describes how individuals adjust their communicative style to that of their conversational partner. We predicted that interpersonal prosodic correlation related to pitch and timing would be decreased in behavioral variant frontotemporal dementia (bvFTD). We predicted that the interpersonal correlation in a timing measure and a pitch measure would be increased in right temporal FTD (rtFTD) due to sparing of the neural substrate for speech timing and pitch modulation but loss of social semantics. We found no significant effects in bvFTD, but conversations including rtFTD demonstrated higher interpersonal correlations in speech rate than healthy controls

The Star Clusters in the Starburst Irregular Galaxy NGC 1569

We examine star clusters in the irregular, starburst galaxy NGC 1569 from HST images. In addition to the two known super star clusters, we identify 45 other clusters that are compact but resolved. Integrated UVI colors of the clusters span a large range, and suggest that ages range from 3 Myrs to 1 Gyr. However, most of the clusters were formed at the tail end of the recent starburst. Numerous clusters in addition to the know super star clusters are similar in luminosity to a small globular cluster. We examined the radial surface brightness of four of the clusters. Their half-light radii and core radii are in the range observed in present-day globular clusters. Therefore, conditions that produced the recent starburst have also been those necessary for producing compact, bright star clusters. We examine resolved stars in the outer parts of the two super star clusters. Cluster A is dominated by bright blue stars with a small population of red supergiants. Sub-components A1 and A2 have similar colors and a two-dimensional color map does not offer evidence that one component is dominated by red supergiants and the other not. The contradiction of the presence of red super- giants with Wolf-Rayet stars may instead not be a contradiction at all since there coexistence in a coeval population is not inconsistent with the evolution of massive stars. Cluster B is dominated by red supergiants, and this is confirmed by the presence of the stellar CO absorption feature in an integrated spectrum. The various age indicators are consistent with a picture in which cluster B is of order 10--20 Myrs old, and cluster A is >4-5 Myrs old.Comment: To be published in AJ, November 200