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https://www.readbyqxmd.com/read/29327630/the-specter-of-the-primitive
#1
Gregory S Rizzolo
Traditional psychoanalytic theories of development hold that the adult neurotic can regress, or has already regressed, to the childhood arrests and/or fixations in which his pathology originated. More recent critiques have called this possibility into question. It is unlikely that anyone can roll back the additions and modifications of lifespan development in a full-fledged return to the needs, wishes, and anxieties of childhood. By regression, though, some analysts mean not a full-fledged return to an earlier developmental phase, but a non-phase-specific slip into primitive fantasies and defenses...
December 2017: Journal of the American Psychoanalytic Association
https://www.readbyqxmd.com/read/29317482/night-diving-by-some-emperor-penguins-during-the-winter-breeding-period-at-cape-washington
#2
Gerald L Kooyman, Robert P van Dam, Luis A Hückstädt
All through the bird literature and feature films, there is much ado about dedicated emperor penguin males fasting for 115 days while they do all the incubation of the single egg. Sometimes, they may not fast for so long. Based on a winter visit to Cape Washington, we obtained evidence that some birds may feed before the egg is laid, and if they do, and some are males, then their fast is much less than 115 days. The consequence of a shorter fast for the male is a better chance of completing the 65 day incubation fast and success in fledging the chick...
January 9, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29315407/a-user-friendly-tool-for-incremental-haemodialysis-prescription
#3
Francesco Gaetano Casino, Carlo Basile
Background: There is a recently heightened interest in incremental haemodialysis (IHD), the main advantage of which could likely be a better preservation of the residual kidney function of the patients. The implementation of IHD, however, is hindered by many factors, among them, the mathematical complexity of its prescription. The aim of our study was to design a user-friendly tool for IHD prescription, consisting of only a few rows of a common spreadsheet. Methods: The keystone of our spreadsheet was the following fundamental concept: the dialysis dose to be prescribed in IHD depends only on the normalized urea clearance provided by the native kidneys (KRUn) of the patient for each frequency of treatment, according to the variable target model recently proposed by Casino and Basile (The variable target model: a paradigm shift in the incremental haemodialysis prescription...
January 5, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29299247/male-specific-mortality-biases-secondary-sex-ratio-in-eurasian-tree-sparrows-passer-montanus
#4
Takahiro Kato, Shin Matsui, Yohey Terai, Hideyuki Tanabe, Sayaka Hashima, Satoe Kasahara, Gen Morimoto, Osamu K Mikami, Keisuke Ueda, Nobuyuki Kutsukake
Sex allocation theory predicts that parents bias the offspring sex ratio strategically. In avian species, the offspring sex ratio can be biased at multiple growth stages, although the mechanisms are not well known. It is crucial to reveal a cause and timing of biased offspring sex ratio. We investigated (i) offspring sex ratio at multiple growth stages, from laying to fledging; and (ii) the stage at which offspring sex ratio became biased; and (iii) the cause of biased offspring sex ratio in Eurasian tree sparrows Passer montanus...
December 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29244160/interplay-between-the-catabolite-repression-control-protein-crc-hfq-and-rna-in-hfq-dependent-translational-regulation-in-pseudomonas-aeruginosa
#5
Elisabeth Sonnleitner, Alexander Wulf, Sébastien Campagne, Xue-Yuan Pei, Michael T Wolfinger, Giada Forlani, Konstantin Prindl, Laetitia Abdou, Armin Resch, Frederic H-T Allain, Ben F Luisi, Henning Urlaub, Udo Bläsi
In Pseudomonas aeruginosa the RNA chaperone Hfq and the catabolite repression control protein (Crc) act as post-transcriptional regulators during carbon catabolite repression (CCR). In this regard Crc is required for full-fledged Hfq-mediated translational repression of catabolic genes. RNAseq based transcriptome analyses revealed a significant overlap between the Crc and Hfq regulons, which in conjunction with genetic data supported a concerted action of both proteins. Biochemical and biophysical approaches further suggest that Crc and Hfq form an assembly in the presence of RNAs containing A-rich motifs, and that Crc interacts with both, Hfq and RNA...
December 13, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29212065/development-of-the-visual-system-in-a-burrow-nesting-seabird-leach-s-storm-petrel
#6
Mindaugas Mitkus, Gabrielle A Nevitt, Almut Kelber
Little is known about the development of vision in wild birds. It is unknown, for example, whether the ability to see can be predicted by the level of prenatal growth or whether the eyes are open at hatching in a particular species. In this study, we investigated the growth of eyes, the formation of retinal ganglion cell topography, and the appearance of simple, visually guided behaviours in chicks of a small procellariiform seabird, Leach's storm petrel (Oceanodroma leucorhoa). This semi-precocial species, which has a well-developed sense of smell, nests in underground burrows where adults provision chicks for 6-8 weeks in the dark before fledging...
December 7, 2017: Brain, Behavior and Evolution
https://www.readbyqxmd.com/read/29211325/climate-change-leads-to-differential-shifts-in-the-timing-of-annual-cycle-stages-in-a-migratory-bird
#7
Barbara M Tomotani, Henk van der Jeugd, Phillip Gienapp, Iván de la Hera, Jos Pilzecker, Corry Teichmann, Marcel E Visser
Shifts in reproductive phenology due to climate change have been well documented in many species but how, within the same species, other annual cycle stages (e.g., moult, migration) shift relative to the timing of breeding has rarely been studied. When stages shift at different rates, the interval between stages may change resulting in overlaps, and as each stage is energetically demanding, these overlaps may have negative fitness consequences. We used long-term data of a population of European pied flycatchers (Ficedula hypoleuca) to investigate phenological shifts in three annual cycle stages: spring migration (arrival dates), breeding (egg-laying and hatching dates) and the onset of post-breeding moult...
December 6, 2017: Global Change Biology
https://www.readbyqxmd.com/read/29195009/ontogeny-of-surface-texture-of-limb-bones-in-modern-aquatic-birds-and-applicability-of-textural-ageing
#8
Junya Watanabe
Despite its importance in various disciplines, a general method to assess ontogenetic ages of skeletal and fossil specimens has been lacking for birds. Although the textural ageing method was formulated to assess relative ontogenetic ages of specimens from inspection of bone surface textures, the exact correspondence of surface textures to ontogenetic stages has not yet been clear. In this study, bone surface textures of six major limb bones (humerus, ulna, carpometacarpus, femur, tibiotarsus, and tarsometatarsus) were described in postnatal ontogenies of four species of modern birds (Calonectris leucomelas, Phalacrocorax capillatus, Larus crassirostris, and Cerorhinca monocerata) from 14-28 individuals of known ontogenetic stages for each species...
December 1, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29185818/teaming-with-a-synthetic-teammate-insights-into-human-autonomy-teaming
#9
Nathan J McNeese, Mustafa Demir, Nancy J Cooke, Christopher Myers
Objective Three different team configurations are compared with the goal of better understanding human-autonomy teaming (HAT). Background Although an extensive literature on human-automation interaction exists, much less is known about HAT in which humans and autonomous agents interact as coordinated units. Further research must be conducted to better understand how all-human teams compare to HAT. Methods In an unmanned aerial system (UAS) context, a comparison was made among three types of three-member teams: (1) synthetic teams in which the pilot role is assigned to a synthetic teammate, (2) control teams in which the pilot was an inexperienced human, and (3) experimenter teams in which an experimenter served as an experienced pilot...
November 1, 2017: Human Factors
https://www.readbyqxmd.com/read/29179453/microrna-deregulation-in-nonalcoholic-steatohepatitis-associated-liver-carcinogenesis
#10
Aline de Conti, Juliana Festa Ortega, Volodymyr Tryndyak, Kostiantyn Dreval, Fernando Salvador Moreno, Ivan Rusyn, Frederick A Beland, Igor P Pogribny
Hepatocellular carcinoma (HCC) is the fastest-rising cause of cancer-related death in the United States. Recent epidemiological studies have identified nonalcoholic steatohepatitis (NASH), a progressive form of nonalcoholic fatty liver disease (NAFLD), as a major risk factor for HCC. Elucidating the underlying mechanisms associated with the development of NASH-derived HCC is critical for identifying early biomarkers for the progression of the disease and for treatment and prevention. In the present study, using liver samples from C57BL/6J mice submitted to the Stelic Animal Model (STAM) of NASH-associated liver carcinogenesis, we investigated the role of microRNA (miRNA) alterations in the pathogenesis of NASH-derived HCC...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29169995/towards-a-fully-fledged-integration-of-spiritual-care-and-medical-care
#11
R Kruizinga, M Scherer-Rath, J B A M Schilderman, C M Puchalski, H W M van Laarhoven
In this article we aim to set out current problems that hinder a fully-fledged integration of spiritual and medical care that address these obstacles. We discuss the following five statements: 1. Spiritual care requires a clear and inclusive definition of spirituality; 2. Empirical evidence for spiritual care interventions should be improved; 3. Understanding patients' experiences of contingency is paramount to deliver effective spiritual care; 4. Attention to spiritual needs of patients is a task for every health care practitioner; 5...
November 20, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/29164156/disseminated-mycobacterium-avium-intracellulare-complex-infection-presenting-with-disseminated-intravascular-coagulation-in-an-aids-patient
#12
Folusakin Ayoade, James Cotelingam, Andrew Stevenson Joel Chandranesan
Disseminated Mycobacterium avium-intracellulare complex (MAC) infection is one of the relatively common opportunistic infections seen in severely immunocompromised AIDS patients. A constellation of clinical, laboratory, and pathological features involving multiple organ systems are often present in disseminated MAC infection but disseminated intravascular coagulation (DIC) has not been previously described in association with this condition. To our knowledge, this is the first reported case of DIC complicating disseminated MAC infection in an AIDS patient...
October 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/29134087/do-glucocorticoids-predict-fitness-linking-environmental-conditions-corticosterone-and-reproductive-success-in-the-blue-tit-cyanistes-caeruleus
#13
L J Henderson, N P Evans, B J Heidinger, K A Herborn, K E Arnold
Glucocorticoids, including corticosterone (CORT), have been suggested to provide a physiological link between ecological conditions and fitness. Specifically, CORT, which is elevated in response to harsh conditions, is predicted to be correlated with reduced fitness. Yet, empirical studies show that CORT can be non-significantly, positively and negatively linked with fitness. Divergent environmental conditions between years or study systems may influence whether CORT is linked to fitness. To test this, we monitored free-living blue tits (Cyanistes caeruleus) during breeding over 3 years...
October 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/29127934/experimental-manipulation-of-dietary-arsenic-levels-in-great-tit-nestlings-accumulation-pattern-and-effects-on-growth-survival-and-plasma-biochemistry
#14
Pablo Sánchez-Virosta, Silvia Espín, Sandra Ruiz, Juha-Pekka Salminen, Antonio J García-Fernández, Tapio Eeva
Arsenic (As) is a ubiquitous metalloid classified as one of the most hazardous substances, but information about its exposure and effects in free-living passerines is lacking. The aim of this study is to elucidate the effect of an As manipulation experiment on survival, growth and physiology of great tits (Parus major). Wild P. major nestlings inhabiting an unpolluted area were dosed with water, 0.2 or 1 μg g(-1) d(-1) of sodium arsenite (Control, Low and High As groups), whereas those living in a metal-polluted area were dosed with water (Smelter group)...
November 8, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29102182/the-spatial-and-temporal-variation-of-total-suspended-solid-concentration-in-pearl-river-estuary-during-1987-2015-based-on-remote-sensing
#15
Chongyang Wang, Weijiao Li, Shuisen Chen, Dan Li, Danni Wang, Jia Liu
The movement and migration of total suspended solid (TSS) are the essential component of global material cycling and change. Based on the TSS concentrations retrieved from 112 scenes of Landsat remote sensing imageries during 1987-2015, the spatial and temporal variations of TSS concentration in high flow season and low flow seasons of six sub-regions (west shoal, west channel, middle shoal, east channel, east shoal and Pearl River Estuary Chinese White Dolphin National Nature Reserve and its adjacent waters (NNR)) of Pearl River Estuary (PRE) were analyzed and compared by statistical simulation...
October 25, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29092255/tunable-high-harmonic-pulses-from-nanorings-swirled-by-optical-vortices
#16
J Wätzel, J Berakdar
Irradiating intercalated nanorings by optical vortices ignites a charge flow that emits coherent trains of high harmonic bursts with frequencies and time structures that are controllable by the topological charge of the driving vortex beam. Similar to synchrotron radiation, the polarization of emitted harmonics is also selectable by tuning to the appropriate emission angle with respect to the ring plane. The nonequilibrium orbital magnetic moment triggered in a ring tunnels quantum mechanically to smaller and larger rings leading respectively to high and low-frequency harmonic generation...
October 30, 2017: Optics Express
https://www.readbyqxmd.com/read/29078397/silent-memory-engrams-as-the-basis-for-retrograde-amnesia
#17
Dheeraj S Roy, Shruti Muralidhar, Lillian M Smith, Susumu Tonegawa
Recent studies identified neuronal ensembles and circuits that hold specific memory information (memory engrams). Memory engrams are retained under protein synthesis inhibition-induced retrograde amnesia. These engram cells can be activated by optogenetic stimulation for full-fledged recall, but not by stimulation using natural recall cues (thus, amnesia). We call this state of engrams "silent engrams" and the cells bearing them "silent engram cells." The retention of memory information under amnesia suggests that the time-limited protein synthesis following learning is dispensable for memory storage, but may be necessary for effective memory retrieval processes...
October 23, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29074327/thyrotropic-activity-of-corticotropin-releasing-hormone-in-an-altricial-bird-species-the-zebra-finch-taeniopygia-guttata
#18
Yugo Watanabe, Sylvia V H Grommen, Bert De Groef
In chicken, corticotropin-releasing hormone (CRH) acts as a thyrotropin (TSH)-releasing factor, mediated by the type 2 CRH receptor (CRHR2) on the thyrotropes of the pituitary gland. It is not known whether CRH also controls TSH release in non-precocial avian species that have a different pattern of thyroidal activity during their life cycle. Therefore, we investigated the TSH-releasing capacity of CRH in an altricial species, the zebra finch (Taeniopygia guttata). Cellular localisation of type 1 CRH receptor (CRHR1) and CRHR2 mRNA in the pituitary was determined by in situ hybridisation, combined with immunohistochemical staining of pituitary thyrotropes...
October 23, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29066750/ontogeny-of-foraging-behaviour-in-juvenile-red-footed-boobies-sula-sula
#19
Loriane Mendez, Aurélien Prudor, Henri Weimerskirch
The early life stages represent a crucial period that can strongly influence population dynamics. We studied the development of foraging behaviour in the red-footed booby, a tropical seabird with an extensive post-fledging care period (3 to 6 months). Adults and juveniles were observed from shore and tracked at sea using GPS loggers over 3 consecutive 12-day periods. Juveniles initially made a majority of flights inland, likely to practice flying, and formed groups of up to 10 juveniles before making short trips at sea...
October 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29044747/evidence-for-a-17-%C3%AF-electronic-full-fledged-non-innocent-gallium-iii-corrole-radical
#20
Biju Basumatary, Jyoti Rai, R V Ramana Reddy, Jeyaraman Sankar
One-electron oxidation of a GaIII -corrole with N(4-BrC6 H4 )3 SbCl6 resulted in an air-stable non-innocent GaIII -corrole radical. The single-crystal X-ray crystallography of the 2,17-bis-formyl-5,10,15-tris(pentafluorophenyl)corrolato gallium(III)(chloride) radical ([3-Cl]. ) revealed delocalization of the unpaired electron, which was further confirmed by electron spin resonance (ESR) spectroscopy and spin density distribution plot. In addition, the nucleus-independent chemical shift (NICS), anisotropy-induced current density (AICD) and harmonic oscillator model of aromaticity (HOMA) supported a [17] π-electron-conjugated (or antiaromatic) radical...
December 11, 2017: Chemistry: a European Journal
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