Papel de las calculadoras en el salón de clase

En este libro se presenta una serie de artículos sobre la utilización de la tecnología portátil en la enseñanza y el aprendizaje de las matemáticas. Algunos de ellos tratan sobre el uso de las calculadoras gráficas en áreas específicas de las matemáticas. Otros presentan reflexiones sobre la relación entre el currículo de matemáticas y la tecnología. Todos ellos se preocupan por el papel que estas nuevas tecnologías pueden jugar en la educación matemática del futuro. Este libro es el producto del trabajo del grupo temático 18 que se reunió durante el Octavo Congreso Internacional de Educación Matemática que tuvo lugar en Sevilla, España, en julio de 1996.Este grupo centró su trabajo en las calculadoras gráficas, los nuevos computadores portátiles y su papel en la educación matemática. Su público objetivo eran profesores de secundaria con poca experiencia con calculadoras. Los objetivos de este grupo temático eran: Informar, desarrollar y apoyar la reflexión y la discusión sobre el papel que las calculadoras han jugado y pueden jugar en la enseñanza y el aprendizaje de las matemáticas de secundaria. Mostrar por qué y cómo los profesores pueden tener interés en que sus estudiantes usen la tenología portátil. Presentar el "estado del arte" sobre calculadors y computadores portátiles y su papel en la educación matemática

Method in number

Thesis (MA)--University of Illinois, 1900TypescriptIncludes bibliographical references (leaf [1] at beginning

The native bee fauna of the Palouse Prairie (Hymenoptera: Apoidea)

While synoptic collections provide data on the range and general composition of the North American bee fauna, bee communities associated with specific habitats are largely uncharacterized.  This report describes the community of native bees currently found in remnant fragments of the Palouse Prairie of northern Idaho and southeastern Washington State.  Native bees were collected using standardized collection techniques including blue vane traps, colored pan traps and aerial netting.  More than 13,000 individuals were collected, representing at least 174 species and 36 morphospecies in 29 genera.  These data provide the most thorough characterization of the bee fauna of this vulnerable ecosystem, as well as community level information on bee species of unknown conservation status.  These results are relevant to regional conservation efforts and, more broadly, are representative of conditions in fragmented grasslands surrounded by intense agriculture, a common global land use pattern of conservation concern

A randomized controlled trial of training in Motivational Interviewing for child protection.

There has been interest in developing more evidence-based approaches to child and family social work in the UK in recent years. This study examines the impact of a skills development package of training and supervision in Motivational Interviewing (MI) on the skills of social workers and the engagement of parents through a randomized controlled trial. All workers in one local authority were randomly assigned to receive the package (n = 28) or control (n = 33). Families were then randomized to trained (n = 67) or untrained (n = 98) workers. Family meetings with the worker shortly after allocation were evaluated for MI skill. Research interviews gathered data including the WAI. Follow-up interviews 20 weeks later repeated the WAI, and other outcome measures including Goal Attainment Scaling (GAS) and rating of family life. Between group analysis found statistically significant difference in MI skills, though these were not substantial (2.49 in control, 2.91 MI trained, p = .049). There was no statistically significant difference between groups in any other outcome measures. The package of training and supervision did not create sufficient increase in MI skills to influence engagement or outcomes. Implications for understanding the relationship between skills, engagement and organizational change are discussed

Gabapentin in the Treatment of Bipolar Disorder

Gabapentin, a relatively new anti-epileptic drug (AED), is emerging as a therapeutic option for treatment refractory and rapid-cycling bipolar illnesses. Pharmacotherapy for bipolar disorders traditionally involves valproate, carbamazapine, or lithium, drugs which are associated with numerous adverse effects. Conversely, gabapentin has an attractive pharmacokinetics profile and relatively few side effects. There are no large randomized controlled clinical trials to date examining gabapentin’s role in mood stabilization. However, informal reports have cited encouraging results in up to 80% of patients and general tolerance to side effects. These findings make the new drug a possible choice for patients who have failed to respond to traditional agents or developed side effects which interfere with medication compliance

Penerapan Kampanye Penggalangan Dana oleh Perusahaan Penyiaran Televisi untuk Mendukung Kegiatan Kemanusiaan (Studi Deskriptif Kulitatif Program Jembatan Asa Sctv)

Turut berkontribusi terhadap masa depan masyarakat agar menjadi lebih baik merupakan salah satu kewajiban Perusahaan, tak terkecuali Perusahaan yang bergerak dalam bidang industri penyiaran. Penelitian ini membahas kampanye penggalangan dana oleh PT Surya Citra Televisi (SCTV) melalui program Jembatan Asa, sebuah program kemanusiaan untuk membangun jembatan rusak di berbagai daerah di Indonesia. Tujuan penelitian ini adalah untuk mengetahui penerapan kampanye penggalangan dana kemanusiaan Program Jembatan Asa oleh SCTV dengan menggunakan model kampanye Nowak dan Warneryd. Pada model ini terdapat delapan elemen kampanye yang harus diperhatikan: efek yang diharapkan; persaingan komunikasi; obyek komunikasi; populasi target dan kelompok penerima; saluran; pesan; komunikator/pengirim pesan; efek yang dicapai. Pendekatan penelitian yang digunakan adalah kualitatif, dengan sifat penelitian deskriptif. Prosedur pengumpulan data melalui dokumentasi iklan dan berita serta wawancara mendalam dari key informan, yakni Ketua Penyelenggara program CSR Jembatan Asa, Manajer Produksi Berita, Produser Program Liputan 6 dan Video Journalist di Divisi Pemberitaan SCTV. Hasil dan analisis temuan data memperlihatkan bahwa kampanye dilakukan dengan menggandeng stakeholder internal SCTV yaitu departemen pemberitaan, programming, promosi, IT dan media online www.liputan6.com. Sedangkan dari pihak eksternal dilakukan kerja sama dengan Yayasan Relawan Kampung dan Kementerian Sosial Republik Indonesia. Target khalayak yang dituju mengalami Perubahan dari awalnya masyarakat ekonomi kelas A,B,C, diperluas menjadi kelas D dan E, serta kaum muda yang memanfaatkan media online dan media sosial dalam keseharian. Media yang digunakan dalam kampanye terdiri dari traditional media dan new media. Traditional media yang digunakan yaitu program berita Liputan 6, program infotainmen Was-was dan Halo Selebriti, serta program hiburan Inbox yang semuanya tayang di SCTV. Kampenye melalui new media, dilakukan dengan cara publikasi di media online, www.liputan6.com dan www.sctv.co.id. Sedangkan publikasi media sosial dilakukan melalui facebook https://www.facebook.com/Surya.Citra.TV dan twitter @SCTV_. Dengan menggunakan kampanye tersebut, SCTV mampu memperoleh sumbangan dana masyarakat sebesar Rp 4.546.241.368, yang digunakan untuk membangun 10 jembatan, melebihi target awal kampanye yang direncanakan hanya membangun 3 jembata

A Thermophotovoltaic System Using a Photonic Crystal Emitter

The increasing power demands of portable electronics and micro robotics has driven recent interest in millimeter-scale microgenerators. Many technologies (fuel cells, Stirling, thermoelectric, etc.) that potentially enable a portable hydrocarbon microgenerator are under active investigation. Hydrocarbon fuels have specific energies fifty times those of batteries, thus even a relatively inefficient generator can exceed the specific energy of batteries. We proposed, designed, and demonstrated a first-of-a-kind millimeter-scale thermophotovoltaic (TPV) system with a photonic crystal emitter. In a TPV system, combustion heats an emitter to incandescence and the resulting thermal radiation is converted to electricity by photovoltaic cells. Our approach uses a moderate temperature (1000–1200°C) metallic microburner coupled to a high emissivity, high selectivity photonic crystal selective emitter and low bandgap PV cells. This approach is predicted to be capable of up to 30% efficient fuel-to-electricity conversion within a millimeter-scale form factor. We have performed a robust experimental demonstration that validates the theoretical framework and the key system components, and present our results in the context of a TPV microgenerator. Although considerable technological barriers need to be overcome to realize a TPV microgenerator, we predict that 700–900 Wh/kg is possible with the current technology.Micro Autonomous Consortium Systems and Technology (Contract 892730)Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies (W911NF-13-D- 0001

On-scene triage open source forensic tool chests: Are they effective?

Considering that a triage related task may essentially make-or-break a digital investigation and the fact that a number of triage tools are freely available online but there is currently no mature framework for practically testing and evaluating them, in this paper we put three open source triage tools to the test. In an attempt to identify common issues, strengths and limitations we evaluate them both in terms of efficiency and compliance to published forensic principles. Our results show that due to the increased complexity and wide variety of system configurations, the triage tools should be made more adaptable, either dynamically or manually (depending on the case and context) instead of maintaining a monolithic functionality. © 2013 Elsevier Ltd. All rights reserved

Antibiotic-resistant Escherichia Coli from Retail Poultry Meat with Different Antibiotic Use Claims

Background We sought to determine if the prevalence of antibiotic-resistant Escherichia coli differed across retail poultry products and among major production categories, including organic, “raised without antibiotics”, and conventional. Results We collected all available brands of retail chicken and turkey—including conventional, “raised without antibiotic”, and organic products—every two weeks from January to December 2012. In total, E. coli was recovered from 91% of 546 turkey products tested and 88% of 1367 chicken products tested. The proportion of samples contaminated with E. coli was similar across all three production categories. Resistance prevalence varied by meat type and was highest among E. coli isolates from turkey for the majority of antibiotics tested. In general, production category had little effect on resistance prevalence among E. coli isolates from chicken, although resistance to gentamicin and multidrug resistance did vary. In contrast, resistance prevalence was significantly higher for 6 of the antibiotics tested—and multidrug resistance—among isolates from conventional turkey products when compared to those labelled organic or “raised without antibiotics”. E. coli isolates from chicken varied strongly in resistance prevalence among different brands within each production category. Conclusion The high prevalence of resistance among E. coli isolates from conventionally-raised turkey meat suggests greater antimicrobial use in conventional turkey production as compared to “raised without antibiotics” and organic systems. However, among E. coli from chicken meat, resistance prevalence was more strongly linked to brand than to production category, which could be caused by brand-level differences during production and/or processing, including variations in antimicrobial use