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https://www.readbyqxmd.com/read/29351726/paper-tools-and-periodic-tables-newlands-and-mendeleev-draw-grids
#1
Michael D Gordin
This essay elaborates on Ursula Klein's methodological concept of "paper tools" by drawing on several examples from the history of the periodic table. Moving from John A. R. Newlands's "Law of Octaves," to Dmitrii Mendeleev's first drafts of his periodic system in 1869, to Mendeleev's chemical speculations on the place of the ether within his classification, one sees that the ways in which the scientists presented the balance between empirical data and theoretical manipulation proved crucial for the chemical community's acceptance or rejection of their proposed innovations...
January 19, 2018: Ambix
https://www.readbyqxmd.com/read/29350687/intraocular-currents-bernoulli-s-principle-and-non-drainage-scleral-buckling-for-rhegmatogenous-retinal-detachment
#2
D Wong, Y K Chan, T Bek, I Wilson, E Stefánsson
For many years, it is not fully understood how non-drainage scleral buckling surgery brings about spontaneous reattachment of the detached retina when retinal breaks remain open at the end of surgery. Various explanations have been put forward, but none more interesting than the effect of fluid currents associated with eye movements. One such explanation involved the physics of the Bernoulli's principle. Daniel Bernoulli was an eighteenth century Swiss mathematician and he described an equation based on the conservation of energy...
January 19, 2018: Eye
https://www.readbyqxmd.com/read/29346305/the-sustainable-development-assessment-of-reservoir-resettlement-based-on-a-bp-neural-network
#3
Li Huang, Jian Huang, Wei Wang
Resettlement affects not only the resettlers' production activities and life but also, directly or indirectly, the normal operation of power stations, the sustainable development of the resettlers, and regional social stability. Therefore, a scientific evaluation index system for the sustainable development of reservoir resettlement must be established that fits Chinese national conditions and not only promotes reservoir resettlement research but also improves resettlement practice. This essay builds an evaluation index system for resettlers' sustainable development based on a back-propagation (BP) neural network, which can be adopted in China, taking the resettlement necessitated by step hydropower stations along the Wujiang River cascade as an example...
January 18, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29346264/sonography-of-the-cecum-gateway-to-the-right-lower-quadrant
#4
R Brooke Jeffrey, Andrew L Wentland, Eric W Olcott
Sonography of the cecum has come of age largely as a consequence of the successful evolution of appendiceal sonography as a useful tool in the evaluation of patients with right lower-quadrant pain. At some medical centers, graded-compression sonography (GCS) has become the initial imaging study of choice in the assessment of these individuals. The cecum serves as a helpful anatomic landmark for localization of the appendix in these examinations-providing a sonographic starting point in the search for the appendix...
January 17, 2018: Ultrasound Quarterly
https://www.readbyqxmd.com/read/29336699/persistent-ambivalence-theorizing-queer-east-german-studies
#5
Kyle Frackman
The German Democratic Republic (GDR, East Germany) had an ambivalent relationship with homosexuality. Under the principles of socialism, everyone was welcome to contribute to the greater good. The situation for queer people, here lesbians and gay men, was different: one of illegality and invisibility. A difficulty in analyzing these experiences is the theory and methodology necessary to find them and draw them together in an historical narrative. This essay offers a mode of analysis in which theories of affect illustrate long-term trends in East German conceptualizations of same-sex sexuality...
January 16, 2018: Journal of Homosexuality
https://www.readbyqxmd.com/read/29336025/how-children-invented-humanity
#6
REVIEW
David F Bjorklund
I use the commentaries of Legare, Clegg, and Wen and of Frankenhuis and Tiokhin as jumping-off points to discuss an issue hinted at both in my essay and their commentaries: How a developmental perspective can help us achieve a better understanding of evolution. I examine briefly how neoteny may have contributed to human morphology; how developmental plasticity in great apes, and presumably our common ancestor with them, may have led the way to advances in social cognition; and how the "invention" of childhood contributed to unique human cognitive abilities...
January 16, 2018: Child Development
https://www.readbyqxmd.com/read/29334043/a-tribute-to-james-parkinson
#7
André Parent
Exactly 200 years ago, the London surgeon-apothecary James Parkinson (1755-1824) published a 66-page-long booklet entitled An Essay on the Shaking Palsy, which contains the first clear clinical description of the shaking palsy or paralysis agitans, which we now refer to as Parkinson's disease. However, the value of this essay was not fully recognized during Parkinson's lifetime, which spanned the American Revolution, the French Revolution, and the Napoleonic Wars. James Parkinson was one of the most singular figures of his time and place...
January 2018: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29332247/practical-advantages-of-contrast-enhanced-ultrasound-in-abdominopelvic-radiology
#8
Praveen Ganti Ranganath, Michelle L Robbin, Susan J Back, Edward G Grant, David T Fetzer
Computed tomography (CT) and magnetic resonance imaging (MRI) are two of the workhorse modalities of abdominopelvic radiology. However, these modalities are not without patient- and technique-specific limitations that may prevent a timely and accurate diagnosis. Contrast-enhanced ultrasound (CEUS) is an effective, rapid, and cost-effective imaging modality with expanding clinical utility in the United States. In this pictorial essay, we provide a case-based discussion demonstrating the practical advantages of CEUS in evaluating a variety of pathologies in which CT or MRI was precluded or insufficient...
January 13, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29330732/touching-the-spirit-re-enchanting-the-person-in-the-body
#9
Peggy L Determeyer, Julie E Kutac
In this essay, we argue that touch constitutes a sacred connection between the patient and practitioner. When touch is avoided or overlooked, the enigmatic inner workings of the body are ignored as those aspects of the body that can be quantified and ultimately controlled are emphasized. In utilizing touch as a fundamental way of opening up space for the sacred, the practitioner affirms the humanity for both the patient and herself. Only by returning to the senses can practitioners resist the dehumanizing effects of machinery and re-enchant the health-care profession in caring for persons they have sworn to serve...
January 12, 2018: Journal of Religion and Health
https://www.readbyqxmd.com/read/29327618/between-freud-s-second-and-third-essays-on-sexuality-commentary-on-hansbury
#10
Avgi Saketopoulou
No abstract text is available yet for this article.
December 2017: Journal of the American Psychoanalytic Association
https://www.readbyqxmd.com/read/29325406/polycentrism-in-global-health-governance-scholarship-comment-on-four-challenges-that-global-health-networks-face
#11
Jale Tosun
Drawing on an in-depth analysis of eight global health networks, a recent essay in this journal argued that global health networks face four challenges to their effectiveness: problem definition, positioning, coalition-building, and governance. While sharing the argument of the essay concerned, in this commentary, we argue that these analytical concepts can be used to explicate a concept that has implicitly been used in global health governance scholarship for quite a few years. While already prominent in the discussion of climate change governance, for instance, global health governance scholarship could make progress by looking at global health governance as being polycentric...
May 23, 2017: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/29320891/the-political-economy-of-the-assessment-of-value-of-new-health-technologies
#12
Jonathan Karnon, Laura Edney, Hossein Afzali
Health technology assessment provides a common framework for evaluating the costs and benefits of new health technologies to inform decisions on the public funding of new pharmaceuticals and other health technologies. In Australia and England, empirical analyses of the opportunity costs of government spending on new health technologies suggest more quality adjusted life years are being forgone than are being gained by a non-trivial proportion of funded health technologies. This essay considers the relevance of available empirical estimates of opportunity costs and explores the relationship between the public funding of health technologies and broader political and economic factors...
January 1, 2018: Journal of Health Services Research & Policy
https://www.readbyqxmd.com/read/29320294/arresting-leprosy-therapeutic-outcomes-besides-cure
#13
Raúl Necochea López
This essay focuses on the use of the concept of "arrest" in Hansen's disease (leprosy) in the United States in the early to middle part of the 20th century, as well as the transformations the concept underwent with the arrival of sulfone drugs and the implications of these changes for patients and public health officers. An "arrest" was a therapeutic outcome characterized by a long course of treatment, noncontagiousness, a very small chance of reactivation, and a need for postdischarge maintenance that depended on sociomedical infrastructures beyond the clinic as well as self-imposed lifestyle limitations...
February 2018: American Journal of Public Health
https://www.readbyqxmd.com/read/29319208/image-registration-to-compensate-for-epi-distortion-in-patients-with-brain-tumors-an-evaluation-of-tract-specific-effects
#14
Angela Albi, Antonio Meola, Fan Zhang, Pegah Kahali, Laura Rigolo, Chantal M W Tax, Pelin Aksit Ciris, Walid I Essayed, Prashin Unadkat, Isaiah Norton, Yogesh Rathi, Olutayo Olubiyi, Alexandra J Golby, Lauren J O'Donnell
BACKGROUND AND PURPOSE: Diffusion magnetic resonance imaging (dMRI) provides preoperative maps of neurosurgical patients' white matter tracts, but these maps suffer from echo-planar imaging (EPI) distortions caused by magnetic field inhomogeneities. In clinical neurosurgical planning, these distortions are generally not corrected and thus contribute to the uncertainty of fiber tracking. Multiple image processing pipelines have been proposed for image-registration-based EPI distortion correction in healthy subjects...
January 10, 2018: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/29318467/theoretical-and-experimental-studies-of-the-controlled-release-of-tetracycline-incorporated-into-bioactive-glasses
#15
Ângela L Andrade, Isabela A Militani, Katia J de Almeida, Jadson C Belchior, Sérgio C Dos Reis, Rosangela M F Costa E Silva, Rosana Z Domingues
Several authors have studied the release profile of drugs incorporated in different devices. However, to the best of our knowledge, although many studies have been done on the release of tetracycline, in these release devices, no study has investigated if the released compound is actually the tetracycline, or, instead, a degraded product. This approach is exploited here. In this work, we analyse the influence of two drying methods on the tetracycline delivery behaviour of synthesised glasses using the sol-gel process...
January 9, 2018: AAPS PharmSciTech
https://www.readbyqxmd.com/read/29317372/pancreas-ductal-adenocarcinoma-with-cystic-features-on-cross-sectional-imaging-radiologic-pathologic-correlation
#16
Seo Yeon Youn, Sung Eun Rha, Eun Sun Jung, In Seok Lee
Most pancreatic ductal adenocarcinomas (PDAs) show solid growth pattern, but ductal adenocarcinomas may demonstrate intratumoral cystic appearance or accompany peritumoral non-neoplastic cystic lesions, thus mimicking cystic pancreatic tumors on imaging studies. The histopathologic findings for PDA with cystic feature are divided into neoplastic and non-neoplastic cysts. Neoplastic cystic changes include large-duct type cysts (microcystic appearance), neoplastic mucin cysts (macrocystic appearance), colloid carcinomas (mucinous noncystic adenocarcinomas), and degenerative cystic change usually caused by hemorrhagic necrosis of tumor...
January 2018: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/29315547/introduction-the-transformative-powers-of-aesthetic-experiences-in-psychotherapy
#17
Jesse D Geller
This issue of the Journal of Clinical Psychology: In Session contains seven essays that give expression to three basic convictions. The first is that therapists who are consistently able to help their patients make constructive changes in their lives practice psychotherapy creatively, whether or not they conceive of therapy as an applied science or as an art form. The second is that cultivating an aesthetic perspective on the communicative exchanges that take place in therapy can enhance a therapist's capacity to serve creatively as an agent of change...
January 8, 2018: Journal of Clinical Psychology
https://www.readbyqxmd.com/read/29315364/200-years-of-parkinson-s-disease-what-have-we-learnt-from-james-parkinson
#18
Claire McDonald, Gavin Gordon, Annette Hand, Richard W Walker, James M Fisher
2017 marks 200 years since James Parkinson's published his 'Essay on the Shaking Palsy'. Although now most famous for describing the condition that came to bear his name, Parkinson had a wide range of interests and his influence spread beyond medicine. In this review, we provide a biography of James Parkinson's remarkable life.Parkinson's paper not only comprehensively described the symptoms of Parkinson's disease (PD), but challenged his peers to better understand the pathophysiology of the PD. Key observation over the next 2 centuries, included the recognition of the link between the substantia nigra and PD and the discoveries of dopamine deficiency in patients with PD...
January 5, 2018: Age and Ageing
https://www.readbyqxmd.com/read/29309216/the-war-on-poverty-s-health-legacy-what-it-was-and-why-it-matters
#19
Merlin Chowkwanyun
The movement to promote a culture of health bears many similarities to another large-scale and ambitious effort from more than fifty years ago: President Lyndon Johnson's War on Poverty. Long a target of critics of all ideological persuasions, the War on Poverty, through its heritage, offers an instructive precedent for champions of the culture of health movement. This essay examines two regional-level War on Poverty health endeavors, one each in New York City and Los Angeles. They show the influence the War on Poverty had on the ground in widening the health care safety net, implementing holistic models of care, and facilitating community involvement in the leadership of larger health care institutions...
January 2018: Health Affairs
https://www.readbyqxmd.com/read/29307930/hepatocyte-specific-contrast-agent-enhanced-magnetic-resonance-cholangiography-perioperative-evaluation-of-the-biliary-tree
#20
Luciana Carmen Zattar-Ramos, Regis Otaviano Franca Bezerra, Luis Tenório de Brito Siqueira, Marcos Roberto Menezes, Claudia da Costa Leite, Giovanni Guido Cerri
A large number of gadolinium chelates have recently been tested in clinical trials. Some of those have already been approved for clinical use in the United States and Europe. Thus, new diagnostic perspectives have been incorporated into magnetic resonance imaging studies. Among such gadolinium chelates are hepatobiliary-specific contrast agents (HSCAs), which, due to their property of being selectively taken up by hepatocytes and excreted by the biliary ducts, have been widely used for the detection and characterization of focal hepatic lesions...
November 2017: Radiologia Brasileira
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