Risk factors for excessive gestational weight gain in a UK population: A biopsychosocial model approach

Background Gestational weight gain (GWG) can have implications for the health of both mother and child. However, the contributing factors remain unclear. Despite the advantages of using a biopsychosocial approach, this approach has not been applied to study GWG in the UK. This study aimed to investigate the risk factors of excessive GWG in a UK population, employing a biopsychosocial model. Methods This study utilised data from the longitudinal Grown in Wales (GiW) cohort, which recruited women in late pregnancy in South Wales. Specifically, data was collected from midwife recorded notes and an extensive questionnaire completed prior to an elective caesarean section (ELCS) delivery. GWG was categorised according to Institute of Medicine (IOM) guidelines. The analysis was undertaken for 275 participants. Results In this population 56.0% of women had excessive GWG. Increased prenatal depression symptoms (Exp(B)=1.10, p=.019) and an overweight (Exp(B)=4.16, p<.001) or obese (Exp(B)=4.20, p=.010) pre-pregnancy BMI, consuming alcohol in pregnancy (Exp(B)=.37, p=.005) and an income of less than £18,000 (Exp(B)=.24, p=.043) and £25–43,000 (Exp(B)=.25, p=.002) were associated with excessive GWG. Conclusion GWG is complex and influenced by a range of biopsychosocial factors, with the high prevalence of excessive weight gain in this population a cause for concern. Women in the UK may benefit from a revised approach toward GWG within the National Health Service (NHS), such as tracking weight gain throughout pregnancy. Additionally, this research provides evidence for potential targets for future interventions, and potentially at-risk populations to target, to improve GWG outcomes

The Amundsen Sea Polynya International Research Expedition (ASPIRE)

In search of an explanation for some of the greenest waters ever seen in coastal Antarctica and their possible link to some of the fastest melting glaciers and declining summer sea ice, the Amundsen Sea Polynya International Research Expedition (ASPIRE) challenged the capabilities of the US Antarctic Program and RVIB Nathaniel B. Palmer during Austral summer 2010–2011. We were well rewarded by both an extraordinary research platform and a truly remarkable oceanic setting. Here we provide further insights into the key questions that motivated our sampling approach during ASPIRE and present some preliminary findings, while highlighting the value of the Palmer for accomplishing complex, multifaceted oceanographic research in such a challenging environment

Nonorientable spacetime tunneling

Misner space is generalized to have the nonorientable topology of a Klein bottle, and it is shown that in a classical spacetime with multiply connected space slices having such a topology, closed timelike curves are formed. Different regions on the Klein bottle surface can be distinguished which are separated by apparent horizons fixed at particular values of the two angular variables that eneter the metric. Around the throat of this tunnel (which we denote a Klein bottlehole), the position of these horizons dictates an ordinary and exotic matter distribution such that, in addition to the known diverging lensing action of wormholes, a converging lensing action is also present at the mouths. Associated with this matter distribution, the accelerating version of this Klein bottlehole shows four distinct chronology horizons, each with its own nonchronal region. A calculation of the quantum vacuum fluctuations performed by using the regularized two-point Hadamard function shows that each chronology horizon nests a set of polarized hypersurfaces where the renormalized momentum-energy tensor diverges. This quantum instability can be prevented if we take the accelerating Klein bottlehole to be a generalization of a modified Misner space in which the period of the closed spatial direction is time-dependent. In this case, the nonchronal regions and closed timelike curves cannot exceed a minimum size of the order the Planck scale.Comment: 11 pages, RevTex, Accepted in Phys. Rev.

Residuos Orgánicos e Inorgánicos en la Colonia Estrella de Oro Zacatecas, ZAC y en la UAZ

Hasta hace sólo 30 años la producción de desechos sólidos por habitante en América Latinaera de 200 gramos diarios por habitante, hoy se calcula que cada personaproduce una media de 1 kg. de basura al día. La mayoría de los residuos sólidos urbanos que producimos está constituida por materiales que pueden ser clasificados con facilidad como: papel, cartón, vidrio, plásticos, telas, aluminio, materia orgánica, etc. Clasificación de los residuos: Basura orgánica. Es todo desecho de origen biológico, alguna vez estuvo vivo o fue parte de un ser vivo. Basura inorgánica. Es todo desecho de origen no biológico, es decir, de origen industrial o algún otro proceso no natural. Desechos peligrosos. Es todo desecho, ya sea de origen biológico o no, que constituye un peligro potencial y por lo cual debe ser tratado como tal.Universidad Nacional de La Plat

Residuos Orgánicos e Inorgánicos en la Colonia Estrella de Oro Zacatecas, ZAC y en la UAZ

Hasta hace sólo 30 años la producción de desechos sólidos por habitante en América Latinaera de 200 gramos diarios por habitante, hoy se calcula que cada personaproduce una media de 1 kg. de basura al día. La mayoría de los residuos sólidos urbanos que producimos está constituida por materiales que pueden ser clasificados con facilidad como: papel, cartón, vidrio, plásticos, telas, aluminio, materia orgánica, etc. Clasificación de los residuos: Basura orgánica. Es todo desecho de origen biológico, alguna vez estuvo vivo o fue parte de un ser vivo. Basura inorgánica. Es todo desecho de origen no biológico, es decir, de origen industrial o algún otro proceso no natural. Desechos peligrosos. Es todo desecho, ya sea de origen biológico o no, que constituye un peligro potencial y por lo cual debe ser tratado como tal.Universidad Nacional de La Plat

Residuos Orgánicos e Inorgánicos en la Colonia Estrella de Oro Zacatecas, ZAC y en la UAZ

Hasta hace sólo 30 años la producción de desechos sólidos por habitante en América Latinaera de 200 gramos diarios por habitante, hoy se calcula que cada personaproduce una media de 1 kg. de basura al día. La mayoría de los residuos sólidos urbanos que producimos está constituida por materiales que pueden ser clasificados con facilidad como: papel, cartón, vidrio, plásticos, telas, aluminio, materia orgánica, etc. Clasificación de los residuos: Basura orgánica. Es todo desecho de origen biológico, alguna vez estuvo vivo o fue parte de un ser vivo. Basura inorgánica. Es todo desecho de origen no biológico, es decir, de origen industrial o algún otro proceso no natural. Desechos peligrosos. Es todo desecho, ya sea de origen biológico o no, que constituye un peligro potencial y por lo cual debe ser tratado como tal.Universidad Nacional de La Plat

Implications of Space-Time foam for Entanglement Correlations of Neutral Kaons

The role of $CPT$ invariance and consequences for bipartite entanglement of neutral (K) mesons are discussed. A relaxation of $CPT$ leads to a modification of the entanglement which is known as the $\omega$ effect. The relaxation of assumptions required to prove the $CPT$ theorem are examined within the context of models of space-time foam. It is shown that the evasion of the EPR type entanglement implied by $CPT$ (which is connected with spin statistics) is rather elusive. Relaxation of locality (through non-commutative geometry) or the introduction of decoherence by themselves do not lead to a destruction of the entanglement. So far we find only one model which is based on non-critical strings and D-particle capture and recoil that leads to a stochastic contribution to the space-time metric and consequent change in the neutral meson bipartite entanglement. The lack of an omega effect is demonstrated for a class of models based on thermal like baths which are generally considered as generic models of decoherence

Erratum: ''The link between turbulence, magnetic fields, filaments, and star formation in the Central Molecular Zone cloud G0.253+0.016'' (2016, ApJ, 832, 143)

This is a correction for 2016 ApJ 832 143DOI 10.3847/1538-4357/ac93fdInterstellar matter and star formatio

Gravity wave analogs of black holes

It is demonstrated that gravity waves of a flowing fluid in a shallow basin can be used to simulate phenomena around black holes in the laboratory. Since the speed of the gravity waves as well as their high-wavenumber dispersion (subluminal vs. superluminal) can be adjusted easily by varying the height of the fluid (and its surface tension) this scenario has certain advantages over the sonic and dielectric black hole analogs, for example, although its use in testing quantum effects is dubious. It can be used to investigate the various classical instabilities associated with black (and white) holes experimentally, including positive and negative norm mode mixing at horizons. PACS: 04.70.-s, 47.90.+a, 92.60.Dj, 04.80.-y.Comment: 14 pages RevTeX, 5 figures, section VI modifie