We demonstrate how different normalization techniques in GC‐MS analysis impart unique properties to the data, influencing any biological inference. Using simulations, and empirical data, we compare the most commonly used techniques (Total Sum Normalization ‘TSN’; Median Normalization ‘MN’; Probabilistic Quotient Normalization ‘PQN’; Internal Standard Normalization ‘ISN’; External Standard Normalization ‘ESN’; and a compositional data approach ‘CODA’). When differences between biological classes are pronounced, ESN and ISN provides good results, but are less reliable for more subtly differentiated groups. MN, TSN, and (...) CODA approaches produced variable results dependent on the structure of the data, and are prone to false positive biomarker identification. In contrast, PQN exhibits the lowest false positive rate, though with occasionally poor model performance. Because ESN requires extensive pre‐planning, and offers only mixed reliability, and ISN, TSN, MN, and CODA approaches are prone to introducing artefactual differences, we recommend the use of PQN in GC–MS research. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Closing the Gaps in Pediatric HIV/AIDS Care, One Step at a TimeLisa V. Adams, Helga Naburi, Goodluck Lyatuu, Paul Palumbo, and C. Fordham von ReynFatuma's* doctors were completely perplexed. It was 2003 and she had returned to the DARDAR clinic in her hometown of Dar es Salaam, Tanzania three times that week with vague complaints of various pains and aches. Her doctors were considering whether these symptoms were (...) due to the initiation of her recent treatment with antiretroviral medications for her HIV infection or related to the last administration of the investigational tuberculosis (TB) vaccine that the DARDAR Health Study was evaluating. Fatuma's doctor, Dr. Lillian Mtei, consulted with Dartmouth's chief of Infectious Disease, Dr. Ford von Reyn, who happened to be in Dar that week on a site visit. Neither physician could determine the basis for her symptoms. Dr. Mtei returned to the exam room once more and this time emerged with the answer: Fatuma had just learned that her three year old daughter was HIV-infected, likely contracted from Fatuma during or shortly after she gave birth to her daughter. Fatuma believed that her HIV diagnosis was a death sentence for her daughter since antiretroviral therapy was not widely available for children.Dr. von Reyn, Dartmouth's lead clinical researcher in Africa and a father, knew too well the harsh reality of inequities in a resource-limited country. He turned to Dr. Mtei and said decidedly, "we need to do something about this."Thus the DARDAR Pediatric Program was born.Pediatric HIV: A Neglected DiseaseThe need for HIV treatment among children in Tanzania, as in most of sub-Saharan Africa, is compelling. At the end of 2009, approximately 160,000 children aged zero to fourteen in Tanzania were living with HIV (Joint United Nations Programme on HIV/AIDS [UNAIDS], 2011). Even with successful roll out of prevention of mother to child transmission programs in Tanzania, there were nearly 29,000 perinatal infections in 2009. As of December 2010, only 18% of these were enrolled in HIV treatment programs (UNAIDS, 2011; World Health Organization [WHO], 2011). Without antiretroviral therapy (ART), one-half of HIV-infected children will die before their second birthday. Since clinical research to determine efficacy and safety of new medical treatments is conducted almost exclusively in adults, provision of new medical treatments to [End Page 75] children always lags behind advances for adults. Furthermore, children are often underrepresented in programs for antiretroviral drugs for the following reasons: 1) they are not prioritized for care; 2) facilities lack infant diagnostic capabilities; 3) there is limited pediatric HIV training and consequently, a shortage of pediatric providers; and 4) pediatric antiretroviral formulations are frequently unavailable. The unacceptable delays in pediatric HIV drug development and treatment access led the international organization Drugs for Neglected Diseases initiative to publish an editorial in which they referred to pediatric HIV as a "neglected disease" (Lallemant, Chang, Cohen, & Pecoul, 2011).The Tip of the Iceberg: More than Just MedicinesWith a grant from the New York-based Foundation for the Treatment of Children with AIDS, the DARDAR Pediatric Program, a joint collaboration between Geisel School of Medicine at Dartmouth and Muhimbili University of Health and Allied Sciences, began seeing patients in May 2006. It was the first dedicated pediatric HIV Care and Treatment Center in Tanzania and operates in accordance with Tanzania's National AIDS Control Programme's guidance. Testing for both children and infants (the latter of which requires a more sophisticated assay) is available.The day the clinic opened we celebrated this collaborative effort that would provide HIV-infected children in Dar es Salaam access to antiretroviral treatment. One of our first patients was a six-year-old boy whose mother, like Fatuma, was a participant in our TB vaccine trial. She had been advised to bring her son to us for HIV screening. Her son looked healthy so she was surprised and understandably distraught when his test results indicated that not only was he HIV-infected, but his CD4 percentage was very low. His mother was reluctant to have him started on antiretrovirals given his general appearance and young age—and that he was... (shrink)

Several prominent cases have recently highlighted tension between the interests of individuals and those of the broader population in gaining access to health care resources. The care of Helga Wanglie, an elderly woman whose family insisted on continuing life support long after she had lapsed into a persistent vegetative state, cost approximately $750,000, the majority of which was paid by a Medi-gap policy purchased from a health maintenance organization. Similarly, Baby K was an anencephalic infant whose mother, believing that (...) all life is precious regardless of its quality, insisted that the hospital where her daughter was born provide mechanical ventilation, including intensive care, whenever respiratory distress threatened her life. Over the hospital's objections, courts ruled that aggressive care must be provided. Much of Baby K's care was covered by her mother's HMO policy. In the 1993 case of Fox v. HealthNet, a jury awarded $89 million to the family of a woman whose HMO had refused, as experimental, coverage for autologous bone marrow transplant in treating her advanced breast cancer. (shrink)

Several prominent cases have recently highlighted tension between the interests of individuals and those of the broader population in gaining access to health care resources. The care of Helga Wanglie, an elderly woman whose family insisted on continuing life support long after she had lapsed into a persistent vegetative state, cost approximately $750,000, the majority of which was paid by a Medi-gap policy purchased from a health maintenance organization. Similarly, Baby K was an anencephalic infant whose mother, believing that (...) all life is precious regardless of its quality, insisted that the hospital where her daughter was born provide mechanical ventilation, including intensive care, whenever respiratory distress threatened her life. Over the hospital's objections, courts ruled that aggressive care must be provided. Much of Baby K's care was covered by her mother's HMO policy. In the 1993 case of Fox v. HealthNet, a jury awarded $89 million to the family of a woman whose HMO had refused, as experimental, coverage for autologous bone marrow transplant in treating her advanced breast cancer. (shrink)

Ch. 1. Ėtnologii͡a puteshestviĭ -- ch. 2. Mifologii͡a puteshestviĭ -- ch. 3. Filosofii͡a puteshestviĭ -- ch. 4 Apostolʹstvo puteshestviĭ -- ch. 5. Velike geograficheskie otkrytii͡a -- ch. 6 Uslugi dli͡a puteshestvennikov -- ch. 7 Industrii͡a turizma -- ch. 8 Rekreat͡sii͡a.

Сборник докладов предназначен для специалистов.

t. 1. Dialog s V. V. Davydovym -- t. 2. Nereshennye problemy razvivai︠u︡shchego obrazovanii︠a︡.

В монографии рассматривается проблема целостности духовного смысла в русской художественности на фоне социокультурной динамики. Для специалистов.

Монография предназначена для специалистов в области социальной философии, социологии и истории, а также для широкого круга читателей.