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https://www.readbyqxmd.com/read/28215052/predicting-pregnancy-outcomes-using-longitudinal-information-a-penalized-splines-mixed-effects-model-approach
#1
Rolando De la Cruz, Claudio Fuentes, Cristian Meza, Dae-Jin Lee, Ana Arribas-Gil
We propose a semiparametric nonlinear mixed-effects model (SNMM) using penalized splines to classify longitudinal data and improve the prediction of a binary outcome. The work is motivated by a study in which different hormone levels were measured during the early stages of pregnancy, and the challenge is using this information to predict normal versus abnormal pregnancy outcomes. The aim of this paper is to compare models and estimation strategies on the basis of alternative formulations of SNMMs depending on the characteristics of the data set under consideration...
February 19, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28213733/the-localization-of-a-heterologous-displayed-antigen-in-the-baculovirus-budded-virion-determines-the-type-and-strength-of-induced-adaptive-immune-response
#2
Eugenia Tavarone, Guido Nicolás Molina, Sabrina Amalfi, Andrea Peralta, Paula Molinari, Oscar Taboga
In the search of strategies of presentation of heterologous antigens to elicit humoral or cellular immune responses that modulate and properly potentiate each type of response, researchers have been studying baculovirus (BV) as vaccine vectors with promising results. For some years, several research groups explored different antigen presentation approaches using the BV AcNPV by expressing polypeptides on the surface of budded virions or by de novo synthesis of heterologous antigens by transduction of mammalian cells...
February 17, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28212024/environmental-multi-objective-optimization-of-the-use-of-biomass-resources-for-energy
#3
Carl Vadenbo, Davide Tonini, Thomas Fruergaard Astrup
Bioenergy is often considered an important component, alongside other renewables, to mitigate global warming and to reduce fossil fuel dependency. Determining sustainable strategies for utilizing biomass resources, however, requires a holistic perspective to reflect a wider range of potential environmental consequences. To circumvent the limitations of scenario-based life cycle assessment (LCA), we develop a multi-objective optimization model to systematically identify the environmentally-optimal use of biomass for energy under given system constraints...
February 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28211048/the-assessment-of-knowledge-and-learning-in-competence-spaces-the-gain-loss-model-for-dependent-skills
#4
Pasquale Anselmi, Luca Stefanutti, Debora de Chiusole, Egidio Robusto
The gain-loss model (GaLoM) is a formal model for assessing knowledge and learning. In its original formulation, the GaLoM assumes independence among the skills. Such an assumption is not reasonable in several domains, in which some preliminary knowledge is the foundation for other knowledge. This paper presents an extension of the GaLoM to the case in which the skills are not independent, and the dependence relation among them is described by a well-graded competence space. The probability of mastering skill s at the pretest is conditional on the presence of all skills on which s depends...
February 17, 2017: British Journal of Mathematical and Statistical Psychology
https://www.readbyqxmd.com/read/28210763/artemisinin-and-its-derivatives-in-cancer-therapy-status-of-progress-mechanism-of-action-and-future-perspectives
#5
REVIEW
Archana Bhaw-Luximon, Dhanjay Jhurry
Since the late 1990s, there has been rapid multiplication of data on the anti-cancer properties of artemisinins. This article reviews the status of progress of artemisinin and its derivatives as anti-cancer agents in clinical trials, case reports, and in vitro/in vivo studies. Particular attention is laid on the combinations of artemisinins and synthetic chemodrugs to enhance the latter's efficacy. An attempt is here made to rationalize the synergistic effects of a few common anti-cancer drugs of the anthracycline, taxane, anti-metabolite, and platinum-based drug families...
February 16, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28210235/clinical-case-studies-in-psychoanalytic-and-psychodynamic-treatment
#6
REVIEW
Jochem Willemsen, Elena Della Rosa, Sue Kegerreis
This manuscript provides a review of the clinical case study within the field of psychoanalytic and psychodynamic treatment. The method has been contested for methodological reasons and because it would contribute to theoretical pluralism in the field. We summarize how the case study method is being applied in different schools of psychoanalysis, and we clarify the unique strengths of this method and areas for improvement. Finally, based on the literature and on our own experience with case study research, we come to formulate nine guidelines for future case study authors: (1) basic information to include, (2) clarification of the motivation to select a particular patient, (3) information about informed consent and disguise, (4) patient background and context of referral or self-referral, (5) patient's narrative, therapist's observations and interpretations, (6) interpretative heuristics, (7) reflexivity and counter-transference, (8) leaving room for interpretation, and (9) answering the research question, and comparison with other cases...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28209426/swing-attenuation-for-a-quadrotor-transporting-a-cable-suspended-payload
#7
M Eusebia Guerrero-Sánchez, D Alberto Mercado-Ravell, Rogelio Lozano, C Daniel García-Beltrán
This paper presents the problem of safe and fast transportation of packages by an Unmanned Aerial Vehicle (UAV) kind quadrotor. A mathematical model and a control strategy for a special class of underactuated mechanical systems, composed of a quadrotor transporting a cable-suspended payload, are proposed. The Euler-Lagrange formulation is used to obtain the dynamic model of the system, where the integrated dynamics of the quadrotor, cable and payload are considered. An Interconnection and Damping Assignment-Passivity Based Control (IDA-PBC) is chosen because of its inherent robustness against parametric uncertainty and unmodeled dynamics...
February 13, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28208578/role-of-cortico-cancellous-heterologous-bone-in-human-periodontal-ligament-stem-cell-xeno-free-culture-studied-by-synchrotron-radiation-phase-contrast-microtomography
#8
Serena Mazzoni, Sara Mohammadi, Giuliana Tromba, Francesca Diomede, Adriano Piattelli, Oriana Trubiani, Alessandra Giuliani
This study was designed to quantitatively demonstrate via three-dimensional (3D) images, through the Synchrotron Radiation Phase-Contrast Microtomography (SR-PhC-MicroCT), the osteoinductive properties of a cortico-cancellous scaffold (Osteobiol Dual Block-DB) cultured with human Periodontal Ligament Stem Cells (hPDLSCs) in xeno-free media. In vitro cultures of hPDLSCs, obtained from alveolar crest and horizontal fibers of the periodontal ligament, were seeded onto DB scaffolds and cultured in xeno-free media for three weeks...
February 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28208451/mori-zwanzig-theory-for-dissipative-forces-in-coarse-grained-dynamics-in-the-markov-limit
#9
Sergei Izvekov
We derive alternative Markov approximations for the projected (stochastic) force and memory function in the coarse-grained (CG) generalized Langevin equation, which describes the time evolution of the center-of-mass coordinates of clusters of particles in the microscopic ensemble. This is done with the aid of the Mori-Zwanzig projection operator method based on the recently introduced projection operator [S. Izvekov, J. Chem. Phys. 138, 134106 (2013)10.1063/1.4795091]. The derivation exploits the "generalized additive fluctuating force" representation to which the projected force reduces in the adopted projection operator formalism...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28208415/thermostability-analysis-of-line-tension-associated-nucleation-at-a-gas-liquid-interface
#10
Sanat Kumar Singha, Prasanta Kumar Das, Biswajit Maiti
The influence of line tension on the thermostability of a droplet nucleated from an oversaturated vapor at the interface of the vapor and another immiscible liquid is investigated. Along with the condition of mechanical equilibrium, the notion of extremization of the reversible work of formation is considered to obtain the critical parameters related to heterogeneous nucleation. From the energetic formulation, the critical reversible work of formation is found to be greater than that of homogeneous nucleation for high value of the positive line tension...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28208377/analysis-of-the-classical-phase-space-and-energy-transfer-for-two-rotating-dipoles-with-and-without-external-electric-field
#11
Rosario González-Férez, Manuel Iñarrea, J Pablo Salas, Peter Schmelcher
We explore the classical dynamics of two interacting rotating dipoles that are fixed in the space and exposed to an external homogeneous electric field. Kinetic energy transfer mechanisms between the dipoles are investigated by varying both the amount of initial excess kinetic energy of one of them and the strength of the electric field. In the field-free case, and depending on the initial excess energy, an abrupt transition between equipartition and nonequipartition regimes is encountered. The study of the phase space structure of the system as well as the formulation of the Hamiltonian in an appropriate coordinate frame provide a thorough understanding of this sharp transition...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28203065/oral-drug-therapy-in-elderly-with-dysphagia-between-a-rock-and-a-hard-place
#12
REVIEW
Serena Logrippo, Giovanna Ricci, Matteo Sestili, Marco Cespi, Letizia Ferrara, Giovanni F Palmieri, Roberta Ganzetti, Giulia Bonacucina, Paolo Blasi
Demographic indicators forecast that by 2050, the elderly will account for about one-third of the global population. Geriatric patients require a large number of medicines, and in most cases, these products are administered as solid oral solid dosage forms, as they are by far the most common formulations on the market. However, this population tends to suffer difficulties with swallowing. Caregivers in hospital geriatric units routinely compound in solid oral dosage forms for dysphagic patients by crushing the tablets or opening the capsules to facilitate administration...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28202338/a-new-strategy-for-emergency-department-crowding-high-turnover-utility-bed-intervention
#13
I-Hsin Lee, Chung-Ting Chen, Yi-Tzu Lee, Yueh-Shuang Hsu, Chia-Ling Lu, Hsien-Hao Huang, Teh-Fu Hsu, Chorng-Kuang How, David Hung-Tsang Yen, Ueng-Cheng Yang
BACKGROUND: This study applied a new strategy, termed high-turnover utility bed intervention, to offer early admission chances for emergency department (ED) patients and alleviate ED crowding. METHODS: This before-and-after observational cohort study was conducted at the ED of an urban tertiary hospital. On January 1, 2012, 14 utility beds were prepared exclusively for ED patient use. A strict 48-hour course limit for each patient was formulated to govern these high-turnover beds...
February 12, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28199426/-translating-hysteria-ptsd-dissociative-subtype
#14
Elena Levy Yeyati
To address the symptoms of depersonalization and derealization a specific dissociative subtype of posttraumatic stress disorder has been included in DSM-5. Depersonalization and derealization have been defined as acute and chronic symptoms of dissociative disorders since DSM-III. Dissociative disorders with chronic features are often diagnosed in North America, Canada and other European countries, but this is not the case in Argentina. Dissociative disorders have clinical and historical features that are strongly connected with hysteria...
March 2016: Vertex: Revista Argentina de Psiquiatriá
https://www.readbyqxmd.com/read/28199323/a-large-scale-biorational-approach-using-bacillus-thuringiensis-israeliensis-strain-am65-52-for-managing-aedes-aegypti-populations-to-prevent-dengue-chikungunya-and-zika-transmission
#15
Catherine A Pruszynski, Lawrence J Hribar, Robert Mickle, Andrea L Leal
BACKGROUND: Aedes aegypti is a container-inhabiting mosquito and a vector of dengue, chikungunya, and Zika viruses. In 2009 several cases of autochthonous dengue transmission were reported in Key West, Florida, USA prompting a comprehensive response to control A. aegypti. In Key West, larvae of this mosquito develop in containers around human habitations which can be numerous and labor intensive to find and treat. Aerial applications of larvicide covering large areas in a short time can be an efficient and economical method to control A...
2017: PloS One
https://www.readbyqxmd.com/read/28197381/immunological-mechanisms-of-intravesical-chitosan-interleukin-12-immunotherapy-against-murine-bladder-cancer
#16
Sean G Smith, John L Baltz, Bhanu Prasanth Koppolu, Sruthi Ravindranathan, Khue Nguyen, David A Zaharoff
There is a critical unmet clinical need for bladder cancer immunotherapies capable of inducing durable antitumor immunity. We have shown that four intravesical treatments with a simple co-formulation of interleukin-12 and the biopolymer chitosan not only destroy orthotopic bladder tumors, but also promote a potent long-lasting systemic immune response as evidenced through tumor-specific in vitro killing assays, complete protection from rechallenge, and abscopal antitumor responses at distant non-treated tumors...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28197294/diagnostic-approach-to-myocarditis-mimicking-myocardial-infarction-at-initial-presentation
#17
Craig Basman, Pratik R Agrawal, Chad McRee, Louis Saravolatz, Carol Chen-Scarabelli, Tiziano M Scarabelli
We present a case of a 35-year-old male patient with a 12-hour history of sudden-onset, crushing chest pain and associated complaints of profuse diaphoresis, nausea and vomiting. The patient was transferred to our institution from an outside hospital for evaluation and possible emergent catheterization. Left heart catheterization was conclusive for normal coronary arteries and a ventriculogram revealed a left ventricular ejection fraction of approximately 45%. Due to a suspicion of myocarditis based on clinical history, pertinent serology tests were ordered, which were found to be negative...
December 2016: Cardiology Research
https://www.readbyqxmd.com/read/28197107/augmentation-of-psychotherapy-through-alternative-preconscious-priming-a-case-series-exploring-effects-on-residual-symptoms
#18
Melha Zidani, Jean-Sébastien Audet, François Borgeat, Frederick Aardema, Kieron Philip O'Connor, Yasser Khazaal
The current paper describes a case series using a new strategy for facilitating change based on Augmentation of Psychotherapy through Alternative Preconscious Priming (APAP) (1) in the treatment of eight treatment-resistant patients suffering from social phobia or generalized anxiety disorder. The patients had previously only shown a partial response to cognitive behavioral therapy (CBT) despite good treatment adherence. The patients completed APAP using a computerized program, which consisted of three steps during which alternative, more functional thoughts and beliefs relevant to the idiosyncratic difficulties experienced by the patients were formulated...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28196393/does-manipulation-under-anesthesia-increase-the-risk-of-revision-total-knee-arthroplasty-a-matched-case-control-study
#19
Todd P Pierce, Kimona Issa, Anthony Festa, Anthony J Scillia, Vincent K McInerney, Michael A Mont
Manipulation under anesthesia (MUA) can help patients regain an adequate range of motion (ROM) following total knee arthroplasty (TKA). Although there are studies reporting that MUA can assist in improving ROM, there is a paucity of studies regarding whether requiring an MUA is associated with an increased risk of revision. The purpose of this study was to assess the: (1) incidence of revision TKA and (2) outcomes of those undergoing MUA and compare it with a matched cohort who did not require MUA. A prospectively collected database of two high-volume institutions was assessed for patients who required a single MUA following TKA between 2005 and 2011...
February 14, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28193610/risk-of-heart-failure-after-community-acquired-pneumonia-prospective-controlled-study-with-10-years-of-follow-up
#20
Dean T Eurich, Thomas J Marrie, Jasjeet K Minhas-Sandhu, Sumit R Majumdar
Objective To determine the attributable risk of community acquired pneumonia on incidence of heart failure throughout the age range of affected patients and severity of the infection.Design Cohort study.Setting Six hospitals and seven emergency departments in Edmonton, Alberta, Canada, 2000-02.Participants 4988 adults with community acquired pneumonia and no history of heart failure were prospectively recruited and matched on age, sex, and setting of treatment (inpatient or outpatient) with up to five adults without pneumonia (controls) or prevalent heart failure (n=23 060)...
February 13, 2017: BMJ: British Medical Journal
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