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Studies of divorce's effects on children have been oriented toward the parents' characteristics, ignoring their extended families. In the current study we collected data from 414 participants, both divorced parents and the children's extended families in Peru (155) and Spain (259). Participants completed a questionnaire on attitudes toward the parents, and the Short Dark Tetrad questionnaire. Multivariate tests were conducted on participants' responses, showing that negative attitudes toward parents are not very strong but that attitudes toward fathers are more negative than attitudes toward mothers. Custodial parents are perceived less negatively, and parents who share custody are perceived the least negatively. Extended family members hold more negative attitudes against parents than the parents themselves. Mothers have significantly more negative attitudes toward fathers than the fathers towards mothers. Dark traits are a significant predictor of negative attitudes toward the mother but not toward the father. The perception of unhappiness in the child was predicted by negative attitudes toward the parents. Non-parents tend to evaluate both parents more negatively compared to parents' mutual perceptions. There was an effect on dark traits, negative attitudes against parents, and perception of unhappiness in the child. Peruvians scored significantly higher in all variables.

We provide an overview of activities carried out at the TJ-II stellarator for improving our understanding of- and developing plasma physics models for particle density profiles in stellarators. Namely, we report on recent progress in turbulent particle transport simulation, validation of pellet deposition models, density profile shaping for performance control and new experimental techniques for edge turbulence and plasma-neutral interaction.

Abstract In the framework of the Standard Model Effective Field Theory, we compare the lower bounds on the scale of new physics possibly contributing to the f f ¯ h $$ f\overline{f}h $$ effective couplings, obtained from the measurements of different observables, under the assumption that the Wilson coefficients of the relevant dim 6 operators respect certain flavour structure: either the Minimal Flavour Violation (MFV) ansatz or a flavour symmetry, often invoked to explain the observed pattern of fermion masses and mixings. We perform a global analysis of the bounds following from the limits on the diagonal couplings measured in the Higgs boson production and decays at the LHC experiments. Another set of bounds is obtained from the limits on non-diagonal couplings constrained by the variety of flavour changing neutral current (FCNC) and radiative decay processes. With the present precision of the LHC data, the FCNC data give stronger bounds on the scale of new physics than the collider data (obviously, for the MFV ansatz only collider data are relevant): once the Wilson coefficients respect some flavour structure, the obtained bounds are in the TeV range. In the quark case, these limits are compatible with a few percent deviations from the SM Yukawa couplings and only mildly more stringent than those obtained from the available collider data. For leptons, instead, the FCNC bounds are stronger and then a signal in the near future collider data would mean the violation of the flavour symmetry or indicate the presence of additional beyond the Standard Model contributions, affecting the flavour observables, that leads to cancellations.

Abstract Little attention has been given to the development of remediation strategies for soils polluted with mixture of pollution (metal(loid)s and organic compounds). The present study evaluates the effectiveness of different types of commercial iron nanoparticles (nanoscale zero valent iron (nZVI), bimetallic nZVI-Pd, and nano-magnetite (nFe3O4)), for the remediation of an industrial soil co-contaminated with Cr and PCBs. Soil samples were mixed with nZVI, nZVI-Pd, or nFe3O4 at doses selected according to their reactivity with PCBs, homogenized, saturated with water and incubated at controlled conditions for 15, 45 and 70 days. For each sampling time, PCBs and chromium were analyzed in aqueous and soil fractions. Cr(VI) and Cr leachability (TCLP test) were determined in the soil samples. The treatment with the three types of iron nanoparticles showed significant reduction in Cr concentration in aqueous extracts at the three sampling times (> 98%), compared to the control samples. The leachability of Cr in treated soil samples also decreased and was stable throughout the experiment. Results suggested that nZVI and nZVI-Pd immobilized Cr through adsorption of Cr(VI) on the shell and reduction to Cr(III). The mechanism of interaction of nFe3O4 and Cr(VI) included adsorption and reduction although its reducing character was lower than those of ZVI nanoparticles. PCBs significantly decreased in soil samples (up to 68%), after 15 days of treatment with the three types of nanoparticles. However, nFe3O4 evidenced reversible adsorption of PCBs after 45 days. In general, nZVI-Pd reduced PCB concentration in soil faster than nZVI. Control soils showed a similar reduction in PCBs concentration as those obtained with nZVI and nZVI-Pd after a longer time (45 days). This is likely due to natural bioremediation, although it was not effective for Cr remediation. Results suggest that the addition of nZVI or nZVI-Pd and pseudo-anaerobic conditions could be used for the recovery of soil co-contaminated with Cr and PCBs.

Resumen: Introducción: La erosión o muesca escapular (notching escapular) es un problema que se observa con frecuencia en las prótesis invertidas de hombro, producido por un choque entre el componente humeral y el cuello de la escápula. El objetivo principal de nuestro trabajo es analizar si disminuye el notching escapular con el aumento de la experiencia del cirujano. Como objetivos secundarios, el valorar si existe una relación entre su aparición y el resultado funcional y clínico en los pacientes. Material y métodos: Se realiza una revisión retrospectiva de 101 pacientes con 105 prótesis invertidas de hombro, valorando radiográficamente la aparición de notching escapular. El tiempo medio de seguimiento fue de 36 meses (rango, 12-72). Se objetivan los resultados clínico-funcionales con la escala Constant y el cuestionario QuickDash. Resultados: Cuarenta y dos pacientes (40%) presentaron algún grado de notching escapular. De ellos, 25 pacientes tenían un grado I, 14 un grado II y tres un grado III. El Constant postoperatorio medio para toda la serie fue de 60,72. Se observó una tendencia a disminuir la incidencia de notching conforme aumentaba el número de casos intervenidos y la experiencia del cirujano (p = 0,04). En el grupo de los pacientes que presentaban notching escapular, el Constant postoperatorio fue de 56 y en el grupo que no desarrolló notching fue del 63. Los pacientes con notching presentaban puntuaciones inferiores en cuanto al dolor siendo la diferencia estadísticamente significativa (p = 0,012). Conclusiones: El notching escapular es un problema frecuente en las prótesis invertidas de hombro, en las cuales la curva de aprendizaje influye positivamente en la diminución de su aparición. La aparición de notching escapular está relacionado con peores resultados clínicos en cuanto al dolor se refiere. Abstract: Background: Scapular Notching is a problem frequently seen in Reverse shoulder arthroplasties (RSAs), produced by a collision between the humeral component and the scapula. The main objective of this study is to analyze whether this problem decreases with the surgeons experience. As secondary objectives, assessing whether there is a relationship between its appearance and the clinical and functional outcome of patients. Methods: We retrospectively reviewed 101 patients with 105 RSAs; we analyzed complications, focusing on scapular notching. Main follow-up time was 36 month (12-72). The clinical and functional outcomes were evaluated with the Constant scale and the QuickDash questionnaire. Results: Forty-two patients (40%) had some degree of scapular notching. Of these, 25 patients had grade I, 14 had grade II and 3 had grade III notching. The average postoperative Constant score for the entire series was 60.72. A tendency toward a reduced incidence of notching was observed with increasing numbers of operated cases and experience of the surgeon (p=0.04). In the group of patients who had notching, the average postoperative Constant score was 56, and in the group that developed notching, the average score was 63. Patients with notching had significantly lower pain scores (p=0.012). Conclusions: Scapular notching is a common problem of RSA. In RSA, the experience of the surgeon reduces the appearance of problems and complications. Scapular notching is related to poorer clinical outcomes with respect to pain.

Abstract The Minimal Linear $$\sigma $$ σ Model is a useful theoretical laboratory. One can investigate in a perturbative renormalisable model the properties of the Higgs boson as a pseudo-Goldstone boson, the phenomenological effects of the radial mode of the field $$\texttt {s}$$ s which spontaneously breaks the global SO(5) symmetry and the validity of conclusions based on the Effective Field Theory approach with the field $$\texttt {s}$$ s in the spectrum, after the decoupling of heavy degrees of freedom. In this paper all those issues are discussed in the framework of the Minimal Linear $$\sigma $$ σ Model with CP violating phases leading to pseudoscalar components in the effective Standard Model Yukawa couplings. Also the character of the electroweak phase transition in the presence of the field $$\texttt {s}$$ s is investigated.

Abstract The origin of the matter-antimatter asymmetry in the Universe is a fundamental question of physics. Electroweak baryogenesis is a compelling scenario for explaining it but it requires beyond the Standard Model sources of the CP symmetry violation. The simplest possibility is CP violation in the third generation fermion Higgs couplings, widely investigated theoretically and searched for experimentally. It has been found that the experimental bounds on the CP violation in the quark Yukawa couplings exclude their significant role in the electroweak baryogenesis, but it can be still played by the τ lepton Yukawa coupling. It is shown in this paper that, within the context of the Standard Model Effective Field Theory and assuming an underlying flavour symmetry of the Wilson coefficients, the electron dipole moment bound on the τ lepton Yukawa coupling is two orders of magnitude stronger than previously reported. This sheds strong doubts on its role in the electroweak baryogenesis, further stimulates the interest in its experimental verification and makes electroweak baryogenesis even more difficult to explain.

Resumen: Antecedentes y objetivo: La luxación congénita de rodilla es una entidad muy infrecuente, caracterizada por la deformidad en genu recurvatum presente al nacimiento, no existiendo en la actualidad consenso sobre el tratamiento óptimo. El objetivo del presente estudio es analizar los resultados funcionales y complicaciones a largo plazo tras la aplicación de un protocolo de actuación terapéutica para el manejo de luxación congénita de rodilla (PLCR) creado en un centro de referencia de ortopedia infantil. Materiales y métodos: Estudio descriptivo retrospectivo de pacientes con luxación congénita de rodilla que siguieron el PLCR entre enero de 1997 y diciembre de 2010. Se estudiaron variables demográficas, tipo de tratamiento, resultados funcionales al finalizar el seguimiento, complicaciones y recidivas. El tratamiento conservador consisitió en yesos seriados, dejando el tratamiento quirúrgico para los casos en los que no se consiguió una flexión pasiva mayor a 30° o fracasó el tratamiento conservador. Resultados: Nueve pacientes (11 rodillas) cumplieron los criterios de inclusión. El 66,7% fueron niñas y el seguimiento medio fue de 15 años (9-22). En todos los casos se inició tratamiento conservador. De las 11 rodillas tratadas en menos de la mitad (36%) se precisó realizar cirugía. El cuestionario Lysholm medio fue de 90,3 puntos, el WOMAC dolor 0,4 (0-1), WOMAC rigidez 1,8 (0-6) y WOMAC función 3,8 (1-12). Conclusiones: La existencia y aplicación del protocolo PLCR en una afección tan infrecuente como la luxación congénita de rodilla sugiere unos buenos resultados funcionales a largo plazo con escasas complicaciones y sin recidivas. Abstract: Background and objective: Congenital knee dislocation is a very rare entity, characterised by deformity in knee recurvatum present at birth, and there is currently no consensus on the optimal treatment. The aim of the present study is to analyse the functional results and long-term complications after the application of a protocol of therapeutic action for the management of congenital knee dislocation (CKD) created in a reference centre for child orthopaedics. Materials and methods: Retrospective descriptive study of patients with congenital dislocation of the knee who followed CRPL between January 1997 and December 2010. Demographic variables, type of treatment, functional outcomes at the end of the follow-up, complications and relapses were studied. The conservative treatment consisted of serial casts, leaving the surgical treatment for cases in which passive flexion was not achieved above 30° or the conservative treatment failed. Results: 9 patients (11 knees) met the inclusion criteria. The 66.7% were girls and the average follow-up was 15 years (9-22). In all cases, conservative treatment was initiated. Of the 11 knees treated, less than half (36%) required surgery. The average Lysholm questionnaire was 90.3 points, the WOMAC pain 0.4 (0-1), WOMAC stiffness 1.8 (0-6) and WOMAC function 3.8 (1-12). Conclusions: The existence and application of the PLCR protocol in a pathology as rare as congenital knee dislocation suggests good long-term functional results with few complications and no recurrences.

Resumen: En el presente artículo, en base a una revisión de la literatura y su experiencia personal, un equipo multidisciplinar de 14 profesionales sanitarios (incluyendo dermatólogos, reumatólogos, neurólogos, gastroenterólogos, farmacéuticos y enfermeras) ha elaborado una serie de recomendaciones generales y específicas (basadas en la fisiopatología) para el manejo de los efectos adversos secundarios a apremilast que con mayor frecuencia conducen a la suspensión del tratamiento (diarrea, náuseas y cefalea). Se aportan algoritmos sencillos de manejo que incluyen aspectos clínicos de evaluación y sugerencias de tratamiento farmacológico.Los efectos adversos de apremilast pueden ser abordados desde un punto de vista multidisciplinar y la optimización en su manejo pretende proporcionar un beneficio clínico a los pacientes que los sufren. Abstract: We present a series of general and specific recommendations based on pathophysiologic considerations for managing the most common adverse effects of apremilast that lead to treatment discontinuation: diarrhea, nausea, and headache. The recommendations are based on a review of the literature and the experience of a multidisciplinary team of 14 experts including dermatologists, rheumatologists, neurologists, gastroenterologists, pharmacists, and nurses. We propose a series of simple algorithms that include clinical actions and suggestions for pharmacologic treatment.The adverse effects of apremilast can be managed from a multidisciplinary approach. The purpose of optimizing management is to bring clinical benefits to patients.

Introduction: Benign strictures are frequent complications following colorectal surgery, with an incidence of up to 20%. Endoscopic treatment is safe and effective but there is not enough evidence for establishing stricture management at that anatomic level. Aim: To determine the risk factors associated with the development of stricture in patients with colorectal cancer and describe endoscopic treatment in those patients. Materials and methods: A retrospective study was conducted on patients with colorectal cancer that underwent surgery and anastomosis, evaluated through colonoscopy, within the time frame of 2014 to 2019. Results: Of the 213 patients included in the study, 18.3% presented with stricture that was associated with the type of surgery. Intersphincteric resection was a risk factor (OR = 18.81, 95% CI: 3.31-189.40, p

Resumen: Introducción: Las estenosis benignas son complicaciones frecuentes posterior a la cirugía colorrectal, con una incidencia de hasta el 20%. El tratamiento endoscópico es seguro y efectivo, pero no hay evidencia suficiente para establecer el manejo de la estenosis a ese nivel anatómico. Objetivo: Determinar los factores de riesgo asociados a el desarrollo de estenosis en pacientes con cáncer colorrectal y describir el tratamiento endoscópico en estos pacientes. Materiales y métodos: Se realizó un estudio retrospectivo en pacientes con cáncer colorrectal sometidos a cirugía y anastomosis, evaluados mediante colonoscopia entre 2014 y 2019. Resultados: De los 213 pacientes incluidos en el estudio, el 18.3% presentó una estenosis que fue asociada con el tipo de cirugía. La resección interesfintérica fue un factor de riesgo (OR = 18.81 IC 95%: 3.31-189.40, p < 0.001). El 69.2% de los pacientes con estenosis tenían un estoma, que fue identificado como factor de riesgo para estenosis (OR = 7.07, IC 95%: 3.10-16.57, p < 0.001). Se realizó anastomosis mecánica con engrapadora en el 87,4% de los pacientes que no presentaron estenosis, identificandose como factor de protección (OR = 0.41, IC 95%: 0.16-1.1, p = 0.04).De los pacientes con estenosis el 69.2% de los pacientes requirieron tratamiento endoscópico con resultados favorables en el 83.3%. Solo el 2.6% de los pacientes tuvieron recurrencia y no se identificaron complicaciones asociadas al procedimiento. Conclusión: La resección interesfintérica y la presencia de un estoma fueron factores de riesgo independientes para el desarrollo de estenosis; la anastomosis mecánica fue un factor protector contra el desarrollo de estenosis. El tratamiento endoscópico fue seguro y efectivo. Abstract: Introduction: Benign strictures are frequent complications following colorectal surgery, with an incidence of up to 20%. Endoscopic treatment is safe and effective but there is not enough evidence for establishing stricture management at that anatomic level. Aim: To determine the risk factors associated with the development of stricture in patients with colorectal cancer and describe endoscopic treatment in those patients. Materials and methods: A retrospective study was conducted on patients with colorectal cancer that underwent surgery and anastomosis, evaluated through colonoscopy, within the time frame of 2014 to 2019. Results: Of the 213 patients included in the study, 18.3% presented with stricture that was associated with the type of surgery. Intersphincteric resection was a risk factor (OR = 18.81, 95% CI: 3.31-189.40, p < .001). A total of 69.2% patients with stricture had a stoma, identifying it as a risk factor for stricture (OR = 7.07, 95% CI: 3.10-16.57, p < .001). Mechanical anastomotic stapling was performed in 87.4% of the patients that did not present with stricture, identifying it as a protective factor (OR = 0.41, 95% CI: 0.16-1.1, p = .04). Endoscopic treatment was required in 69.2% of the patients and provided favorable results in 83.3%. Only 2.6% of the patients had recurrence. No complications were reported. Conclusion: Intersphincteric resection and the presence of a stoma were independent risk factors for stricture, and mechanical anastomosis was a protective factor against stricture development. Endoscopic treatment was safe and effective.

Abstract Background Scores on an outcome measurement instrument depend on the type and settings of the instrument used, how instructions are given to patients, how professionals administer and score the instrument, etc. The impact of all these sources of variation on scores can be assessed in studies on reliability and measurement error, if properly designed and analyzed. The aim of this study was to develop standards to assess the quality of studies on reliability and measurement error of clinician-reported outcome measurement instruments, performance-based outcome measurement instrument, and laboratory values. Methods We conducted a 3-round Delphi study involving 52 panelists. Results Consensus was reached on how a comprehensive research question can be deduced from the design of a reliability study to determine how the results of a study inform us about the quality of the outcome measurement instrument at issue. Consensus was reached on components of outcome measurement instruments, i.e. the potential sources of variation. Next, we reached consensus on standards on design requirements (n = 5), standards on preferred statistical methods for reliability (n = 3) and measurement error (n = 2), and their ratings on a four-point scale. There was one term for a component and one rating of one standard on which no consensus was reached, and therefore required a decision by the steering committee. Conclusion We developed a tool that enables researchers with and without thorough knowledge on measurement properties to assess the quality of a study on reliability and measurement error of outcome measurement instruments.

La caracterización de la distribución de la humedad en el suelo situado bajo los edificios es de la máxima importancia para describir su funcionamiento y tiene una gran influencia en patologías criticas como son los asientos diferenciales. El elevado coste y la dificultad de acceder al suelo situado bajo los edificios hace que los ejemplos de monitorización de la distribución del contenido de humedad no sean numerosos. En este trabajo, se presenta un caso práctico de toma de datos para el estudio de las variables impuestas por el medio ambiente (precipitaciones, humedad, temperatura, nivel freático) de cara la caracterización de la respuesta estructural esperada y al mantenimiento preventivo de la edificación. Los resultados obtenidos han puesto de manifiesto el interés de la metodología, ilustrando su capacidad para caracterizar la distribución real del contenido de humedad bajo las edificaciones, con procedimientos muy sencillos que pueden adaptarse fácilmente a nuestros edificios y que pueden servir de herramientas para un mantenimiento preventivo, en un contexto donde se esperan grandes variaciones en el régimen de humedad de los suelos por los efectos del cambio climático. Abstract The characterization of the distribution of humidity in the soil located under the buildings is of the utmost importance to describe their operation and has a great influence on critical pathologies such as differential settlements. The high cost and the difficulty of accessing the ground under buildings means that the examples of monitoring the distribution of moisture content are not numerous. In this work, a practical case of data collection is presented for the study of the variables imposed by the environment (rainfall, humidity, temperature, water table) in order to characterize the expected structural response and preventive maintenance of the building. . The results obtained have shown the interest of the methodology, illustrating its ability to characterize the real distribution of moisture content under buildings, with very simple procedures that can be easily adapted to our buildings and that can serve as tools for preventive maintenance , in a context where large variations in the soil moisture regime are expected due to the effects of climate change.

Introduction The prevalence of depression based on the Patient Health Questionnaire-8 (PHQ-8) may vary depending on the scoring method. Objectives 1) To describe the prevalence of depression in Europe using two PHQ-8 scoring methods. 2) To identify the countries with the highest prevalence according to each method. Methods Data from 27 countries included in the European Health Survey (EHIS-2) for the year 2014/2015 were used (n=258,888). All participants who completed the PHQ-8 were included. The prevalence of depression and its 95% Confidence Interval (95%CI) were calculated overall for the whole of Europe and for each country using a PHQ-8≥10 cut-off point and the PHQ-8 algorithm scoring method. Weights derived from the complex sample design were considered for their calculation. Results The overall prevalence of depression for all Europe was lower using the PHQ-8>=10 cut-off point (6.38%, 95%CI 6.24-6.52) than the PHQ-8 algorithm (7.01%, 95%CI, 6.86-7.16). Using the PHQ-8≥10 cut-off point, the highest prevalence was observed in Iceland (10.33%, 95%CI, 9.33-11.32), Luxembourg (9.74%, 95%CI, 8.76-10.72) and Germany (9.24%, 95%CI, 8.82-9.66). Using the PHQ-8 algorithm the highest rates were observed in Hungary (10.99%, 95%CI,10.14-11.84), Portugal (10.63%, 95%CI, 9.96-11.29) and Iceland (9.80%, 95%CI, 8.77-10.83). Conclusions There is variability in the prevalence of depression rates in Europe according to the PHQ-8 scoring method. These findings suggest the necessity of identify the method of choice for each country comparing with a gold standard measure (clinical diagnosis). Countries with consistent higher prevalence of depression based on PHQ-8 regardless of scoring method deserve further study. Disclosure This work has been funded by CIBERESP (ESP21PI05)

Background: Scapular Notching is a problem frequently seen in Reverse shoulder arthroplasties (RSAs), produced by a collision between the humeral component and the scapula. The main objective of this study is to analyze whether this problem decreases with the surgeons experience. As secondary objectives, assessing whether there is a relationship between its appearance and the clinical and functional outcome of patients. Methods: We retrospectively reviewed 101 patients with 105 RSAs; we analyzed complications, focusing on scapular notching. Main follow-up time was 36 month (12–72). The clinical and functional outcomes were evaluated with the Constant scale and the QuickDash questionnaire. Results: Forty-two patients (40%) had some degree of scapular notching. Of these, 25 patients had grade I, 14 had grade II and 3 had grade III notching. The average postoperative Constant score for the entire series was 60.72. A tendency toward a reduced incidence of notching was observed with increasing numbers of operated cases and experience of the surgeon (p = 0.04). In the group of patients who had notching, the average postoperative Constant score was 56, and in the group that developed notching, the average score was 63. Patients with notching had significantly lower pain scores (p = 0.012). Conclusions: Scapular notching is a common problem of RSA. In RSA, the experience of the surgeon reduces the appearance of problems and complications. Scapular notching is related to poorer clinical outcomes with respect to pain. Resumen: Introducción: La erosión o muesca escapular (notching escapular) es un problema que se observa con frecuencia en las prótesis invertidas de hombro, producido por un choque entre el componente humeral y el cuello de la escápula. El objetivo principal de nuestro trabajo es analizar si disminuye el notching escapular con el aumento de la experiencia del cirujano. Como objetivos secundarios, el valorar si existe una relación entre su aparición y el resultado funcional y clínico en los pacientes. Material y métodos: Se realiza una revisión retrospectiva de 101 pacientes con 105 prótesis invertidas de hombro, valorando radiográficamente la aparición de notching escapular. El tiempo medio de seguimiento fue de 36 meses (rango, 12–72). Se objetivan los resultados clínico-funcionales con la escala Constant y el cuestionario QuickDash. Resultados: Cuarenta y dos pacientes (40%) presentaron algún grado de notching escapular. De ellos, 25 pacientes tenían un grado I, 14 un grado II y tres un grado III. El Constant postoperatorio medio para toda la serie fue de 60,72. Se observó una tendencia a disminuir la incidencia de notching conforme aumentaba el número de casos intervenidos y la experiencia del cirujano (p = 0,04). En el grupo de los pacientes que presentaban notching escapular, el Constant postoperatorio fue de 56 y en el grupo que no desarrolló notching fue del 63. Los pacientes con notching presentaban puntuaciones inferiores en cuanto al dolor siendo la diferencia estadísticamente significativa (p = 0,012). Conclusiones: El notching escapular es un problema frecuente en las prótesis invertidas de hombro, en las cuales la curva de aprendizaje influye positivamente en la diminución de su aparición. La aparición de notching escapular está relacionado con peores resultados clínicos en cuanto al dolor se refiere.

One of the major challenges facing 3D printing for construction is the technological suitability, ‘printability’, of the materials used. These cement-based materials differ from those used in other sectors, which has a series of conditioning factors that are the object of the present analysis. This article first reviews the definition of the term ‘printability’ and its constituent stages. Those stages condition the requirements to be met by cement-based materials, whether designed for other uses or developed ad hoc, and therefore the tests applicable to determine their aptitude for use in additive manufacturing for construction. That is followed by a review of the standardised tests presently in place for mortars and concretes that can be used to verify a material’s compliance with such requirements. The paper concludes with a recommendation on the advisability of developing a standard test or suite of tests to ascertain printability.

A sepiolite mining by-product (SEP) has been studied as major component for lightweight aggregate (LWA) manufacture. Pellet bursting during firing was avoided by the addition of 2.5 wt% of thermoplastic waste (P) and 2.5 wt% P + 2.5 wt% carbon fiber residue (FC) in powder form. The mixtures were pelletized and then sintered at 1225º˚C for 4 minutes in a rotary kiln. Highly porous white LWAs with good mechanical strength were produced. A mineralogical study revealed the formation of amorphous phase ( > 50%) and minor proportions of enstatite, protoenstatite and diopside. Quartz was the only inherited mineral, appearing in the form of isolated phenocrysts within a general porphyritic texture. The result of this study suggests the promising use of sepiolite (whether or not in residue form) for the manufacture of high quality LWAs.

Axion and axion-like particle models are typically affected by a strong fine-tuning problem in conceiving the electroweak and the Peccei-Quinn breaking scales. Within the context of the Minimal Linear σ Model, axion-like particle constructions are identified where this hierarchy problem is solved, accounting for a TeV Peccei-Quinn breaking scale and a pseudoscalar particle with a mass larger than 10 MeV. Potential signatures at colliders and B-factories are discussed.

The suitability of three new lightweight aggregates containing carbon fiber residues (CAs) as components in structural lightweight concrete has been studied. Prismatic concrete specimens were prepared using these CAs as a coarse fraction. Additional specimens of normal-weight aggregate, commercial lightweight aggregate and mortar were prepared for comparison. The CA-concrete samples (CACs) have yielded compressive strength values between 35 and 55 MPa as well as low density and thermal conductivity results. Furthermore, the CACs have displayed the highest ratios of mechanical strength over density and the thermal conductivity, which means that there is a better balance between their mechanical and physical properties than in the other samples studied. These results indicate that the new CAs could have great potential for use in structural lightweight concrete, also complying with the principles of the Circular Economy.

Fast control of quantum systems is essential to exploit their properties for information processing before they are lost to decoherence. Here the authors demonstrate the use of quasi instantaneous changes to the trapping potential of a trapped-ion to create highly-excited quantum coherent states.

We propose the use of two-dimensional Penning trap arrays as a scalable platform for quantum simulation and quantum computing with trapped atomic ions. This approach involves placing arrays of microstructured electrodes defining static electric quadrupole sites in a magnetic field, with single ions trapped at each site and coupled to neighbors via the Coulomb interaction. We solve for the normal modes of ion motion in such arrays and derive a generalized multi-ion invariance theorem for stable motion even in the presence of trap imperfections. We use these techniques to investigate the feasibility of quantum simulation and quantum computation in fixed ion lattices. In homogeneous arrays, we show that sufficiently dense arrays are achievable, with axial, magnetron, and cyclotron motions exhibiting interion dipolar coupling with rates significantly higher than expected decoherence. With the addition of laser fields, these can realize tunable-range interacting spin Hamiltonians. We also show how local control of potentials allows isolation of small numbers of ions in a fixed array and can be used to implement high-fidelity gates. The use of static trapping fields means that our approach is not limited by power requirements as the system size increases, removing a major challenge for scaling which is present in standard radio-frequency traps. Thus, the architecture and methods provided here appear to open a path for trapped-ion quantum computing to reach fault-tolerant scale devices.

A series of GdCu 2 nanoparticles with controlled sizes ranging from 7 nm to 40 nm has been produced via high-energy inert-gas ball milling. Rietveld refinements on the X-ray diffraction measurements ensure that the bulk crystalline I m m a structure is retained within the nanoparticles, thanks to the employed low milling times ranging from t = 0.5 to t = 5 h. The analysis of the magnetic measurements shows a crossover from Superantiferromagnetism (SAF) to a Super Spin Glass state as the size decreases at NP size of 〈 D 〉 ≈ 18 nm. The microstrain contribution, which is always kept below 1%, together with the increasing surface-to-core ratio of the magnetic moments, trigger the magnetic disorder. Additionally, an extra contribution to the magnetic disorder is revealed within the SAF state, as the oscillating RKKY indirect exchange achieves to couple with the aforementioned contribution that emerges from the size reduction. The combination of both sources of disorder leads to a maximised frustration for 〈 D 〉 ≈ 25 nm sized NPs.

Background: Peroral endoscopic myotomy has recently been developed and performed on patients with good results. Aims: To evaluate the technical feasibility of peroral endoscopic full-thickness and partial thickness myotomy in a porcine model. Material and methods: Eighteen criollo pigs were randomly assigned to 2 groups: group A (partial-thickness myotomy) and group B (full-thickness myotomy). The mucosal defect proximal to the myotomy site was left open. On the seventh postoperative day the pig was euthanized and follow-up surgical exploration was performed. The duration of each procedure, postoperative progression of the animal, complications, and anatomopathologic findings were registered. Results: The procedure was viable in all the pigs. The mean surgery duration was 81 ± 35.3 min (group A 51.11 ± 11.12, group B 111 ± 22.61; P

Antecedentes: Recientemente la miotomía endoscópica por vía oral ha sido desarrollada y realizada en pacientes, con buenos resultados. Objetivo: Evaluar la factibilidad técnica de la miotomía endoscópica por vía oral de espesor total y parcial en un modelo porcino. Material y métodos: Dieciocho cerdos criollos se asignaron al azar a 2 grupos: grupo A (miotomía de espesor parcial) y grupo B (miotomía de espesor total). El defecto mucoso proximal al sitio de la miotomía se dejó abierto. Al séptimo día el cerdo fue sacrificado, realizándose exploración quirúrgica de seguimiento. Se registró el tiempo de cada procedimiento, la evolución del animal en el postoperatorio, la presencia de complicaciones y los hallazgos anatomopatológicos. Resultados: El procedimiento fue factible en todos los cerdos. El tiempo promedio fue de 81 ± 35.3 min (grupo A 51.11 ± 11.12, grupo B 111 ± 22.61; P

El género Otidea en México está representado por 8 taxones, 6 especies y 2 variedades. Otidea concinna es un nuevo registro para México. Se citan nuevas recolectas del género para los estados de Chiapas, Distrito Federal, Morelos y Veracruz.The genus Otidea in Mexico is represented by 8 taxa, 6 species and 2 varieties. Otidea concinna is a new record for Mexico and new collections of Otidea from the states of Chiapas, Distrito Federal, Morelos and Veracruz are cited.

Se presenta un estudio metalográficos de dos armas prerromanas afectadas por un proceso de cremación. Las armas poseen un recubrimiento exterior de magnetita que las confieren unas altas propiedades de protección frente a la corrosión. Esta capa es extraordinariamente tenaz y posee un espesor muy homogéneo, indicando que son producto de un proceso de fabricación intencionado más que una formación accidental durante los varios ciclos de calentamiento/ enfriamiento que han sufrido los objetos. Hasta la fecha, la producción intencional de este tipo de recubrimientos ha sido atribuida a un proceso de soldadura de tres láminas metálicas diferentes. En este trabajo se propone un modelo alternativo de formación, el cual permite una simulación en el laboratorio en la que se forma exclusivamente una capa de magnetita.

Abstract Measurements of luminosity obtained using the ATLAS detector during early running of the Large Hadron Collider (LHC) at $\sqrt{s} = 7$ TeV are presented. The luminosity is independently determined using several detectors and multiple algorithms, each having different acceptances, systematic uncertainties and sensitivity to background. The ratios of the luminosities obtained from these methods are monitored as a function of time and of μ, the average number of inelastic interactions per bunch crossing. Residual time- and μ-dependence between the methods is less than 2% for 0

Resumen: Uno de los objetivos más importantes de los Sistemas Inteligentes de Transporte (ITS) es evitar la pérdida de precisión en el posicionamiento y guiado del vehículo, debido a la disminución en la calidad de la señal del Sistema de Posicionamiento Global (GPS). En este artículo, se presenta un sistema de posicionamiento formado por la combinación de un GPS con una unidad de medida inercial ayudada por los sensores embarcados en el coche para realizar el guiado. En función de la precisión proporcionada por el GPS, el sistema discrimina entre tres posibles comportamientos: 1) Si la precisión es centimétrica, el GPS se encarga en solitario del guiado. 2) Si no se recibe la señal GPS, el control lo toma la unidad inercial. 3) Si la precisión de la señal del GPS no es centimétrica, la posición del vehículo se calcula mediante una combinación de ambas medidas. El sistema se ha instalado en un Citroën C3 Pluriel. Los resultados muestran un correcto comportamiento del vehículo en diferentes situaciones y prueban la necesidad de integrar la información sensorial para realizar un control de navegación óptimo. Palabras Clave: guiado automatizado de vehículos, sistemas de posicionamiento global, unidad de medida inercial

Este material tiene como objetivo abundar acerca de aquellos factores del manejo que conduzcan a estabilizar la producción de biomasa en sistemas ganaderos en el trópico. Es obvio que los sistemas mejorados y bien manejados de pasturas de gramíneas y leguminosas, en cualquiera de sus alternativas, son opciones para lograr la sostenibilidad. Una concepción más amplia y profunda es la relativa a los estudios de pasturas mixtas; éstos, deben tener un enfoque más biológico por lo que, además de considerar el ambiente en el cual se desarrollan y crecen, hay que incluir la forma en que los componentes vegetales se manifiestan en las especies implicadas del agroecosistema. Aquí no podemos olvidar el efecto del animal. Los problemas asociados con la persistencia se reconocen cada vez más como una preocupación real. Los diversos factores que controlan la permanencia de las especies forrajeras se agrupan en aquellos que pueden ser manejados y controlados por el productor, así como en los que éste no puede intervenir. Es por ello que las producciones animales y de otro tipo, derivados de estos sistemas, varían positivamente en el tiempo, en la medida en que se va consolidando la relación suelo /planta /animal. De esta correspondencia no puede quedar excluido el papel interactuante y modificador del hombre con los elementos antes señalados. La producción de biomasa es una actividad multidisciplinaria; de ahí que el éxito de su funcionamiento esté condicionado al conocimiento de las interacciones entre sus componentes, así como entre éstos y el medio ambiente, lo cual permitirá la generación de estrategias de manejo acordes con la ecología que conduzcan a mejorar la productividad y la sostenibilidad del agroecosistema. Por tanto, la producción de biomasa constituye un elemento determinante en el éxito y la eficiencia de los sistemas con leguminosas.

At the present work, limpet (Patella vulgata L.) and seaweed (Ulva lactuca) specimens have been monthly sampled at the same point from the Vigo estuary, during a year. Heavy metal (cadmium and lead) content has been determined by means of differential pulse anodic stripping voltammetry in both limpet and seaweed tissues, as well as in seawater. The obtained results have shown the main heavy metal content in limpet soft tissues with respect to shell, with maximum concentrations of 3 ppm (limpet shell) for lead, whereas the highest content for cadmium was identified in seaweed samples (1.1 ppm). The statistical study revealed the existence of a clear correlation between cadmium and lead concentrations in seaweed samples.En el presente trabajo se han recogido muestras de lapa (Patella vulgata L.) y alga verde (Ulva lactuca) en un mismo punto de muestreo de la ría de Vigo, con una periodicidad mensual, a lo largo de un año, analizándose por medio de voltamperometría de redisolución anódica la concentración en dos metales pesados con claras repercusiones toxicológicas, cadmio y plomo, en estas muestras, así como en el agua marina. Los resultados obtenidos mostraron la mayor concentración de ambos metales en los tejidos blandos de las lapas frente a las valvas de estos moluscos, con valores máximos en el caso del plomo próximos a 3 ppm (valva de lapa), mientras que para el cadmio se situó en torno a 1,1 ppm (alga verde). El estudio estadístico permitió poner en evidencia una clara correlación estadística entre los valores de cadmio y plomo cuantificados en las muestras de algas.

Se exponen los resultados preliminares de las excavaciones arqueológicas llevadas a cabo en la Cueva de El Sidrón entre 2000 y 2002, de acuerdo con los tres objetivos principales que conciernen al registro fósil humano: las características antropológicas, cómo y cuándo llegaron allí y la relación entre fósiles y cultura. Las primeras conclusiones obtenidas son que los restos humanos pertenecen al Neandertal, que el registro arqueológico corresponde a un tecno-complejo del Paleolítico Medio y que están en posición secundaria

Objetivo: El perfil de salud CHIP-AE (Child Health and Illness Profile, Adolescent Edition) es un instrumento genérico para adolescentes de 12 a 19 años que ha sido adaptado para uso en España. El objetivo del estudio fue obtener los valores poblacionales de referencia de la versión española del CHIP-AE. Métodos: Se administró el CHIP-AE a una muestra representativa de adolescentes escolarizados de Barcelona, mediante muestreo por conglomerados, estratificado según la titularidad del centro (público o concertado) y el índice de capacidad económica familiar (bajo, medio y alto). Se estandarizaron las puntuaciones a una media de 20 y desviación estándar (DE) de 5. Se calcularon las medias y los percentiles. Las medias se compararon por edad, género y nivel socioeconómico mediante análisis de la varianza. Resultados: Las proporción de respuesta fue del 81% (n = 902). Las puntuaciones presentaron un amplio rango de distribución, y aunque en general fueron algo sesgadas hacia las puntuaciones de buena salud, sugieren que la muestra de población general no está exenta de problemas de salud. El 25% presentó puntuaciones por debajo de 17,2 en la dimensión de bienestar, lo que indica un tamaño de efecto de 0,56 unidades estandarizadas de DE. La distribución de las puntuaciones de las muestras de referencia de Barcelona fueron muy similares a las originales de Baltimore (Estados Unidos), con diferencias mínimas en riesgo individual. Conclusiones: El CHIP-AE recoge de manera sistemática las dimensiones propias de la salud de los adolescentes. Los resultados permitirán establecer comparaciones con adolescentes de otras regiones, y/o con diferentes problemas de salud y analizar las desigualdades en salud durante la adolescencia.Aim: The Child Health and Illness Profile (CHIP-AE) is a generic health status instrument for adolescents aged 12-19 years adapted for use in Spain. The aim of this study was to obtain reference population values of the Spanish version of the CHIP-AE. Methods: The CHIP-AE was administered to a representative sample of adolescents from schools in Barcelona. The sample was selected by using cluster-sampling, stratified by type of school (public or private) and an ecological socioeconomic index (Índice de Capacidad Familiar: low, middle, and high). The CHIP-AE scores were standardized to a mean of 20 and a standard deviation (SD) of 5. Means and percentiles were computed. Means were compared by age, gender, and socioeconomic status using analysis of variance. Results: The response rate was 81% (n = 902). The distribution of the CHIP-AE scores presented a wide range with scores generally skewed toward positive health status. Nevertheless, the results suggest that the sample selected from a general population was not free of health problems. Twenty-five percent of adolescents presented scores below 17.2 in the domain of discomfort, indicating an effect size of 0.56 standardized SD units. The distribution of scores in the reference samples from Barcelona was similar to the original results in Baltimore (USA), with some marginal differences in individual risks. Conclusions: The CHIP-AE systematically gathers information on health domains in adolescents. The results from this reference sample will allow comparisons with adolescents from other regions, and/or with different health problems, as well as description of inequalities in health during adolescence.

As we enter the age of precision measurement in neutrino physics, improved flux sources are required. These must have a well defined flavor content with energies in ranges where backgrounds are low and cross-section knowledge is high. Very few sources of neutrinos can meet these requirements. However, pion/muon and isotope decay-at-rest sources qualify. The ideal drivers for decay-at-rest sources are cyclotron accelerators, which are compact and relatively inexpensive. This paper describes a scheme to produce decay-at-rest sources driven by such cyclotrons, developed within the DAEδALUS program. Examples of the value of the high precision beams for pursuing Beyond Standard Model interactions are reviewed. New results on a combined DAEδALUS—Hyper-K search for CP violation that achieve errors on the mixing matrix parameter of 4° to 12° are presented.

Se describe a continuación, brevemente y a modo de avance, un interesante detalle de procedimiento y tecnología aplicada en la elaboración de objetos férreos procedentes de la necrópolis de La Hoya (Laguardia, Alava), puesto en evidencia durante los trabajos de conservación y restauración, y que, por su novedad, sin duda debe abrir nuevas vías tanto en la investigación de las culturas del hierro prerromano, en particular, como en los estudios de arqueometalúrgica, en general.

Nanoparticles of iron oxides (MNPs) were prepared using the electric explosion of wire technique (EEW). The main focus was on the fabrication of de-aggregated spherical nanoparticles with a narrow size distribution. According to XRD the major crystalline phase was magnetite with an average diameter of MNPs, depending on the fraction. Further separation of air-dry EEW nanoparticles was performed in aqueous suspensions. In order to provide the stability of magnetite suspension in water, we found the optimum concentration of the electrostatic stabilizer (sodium citrate and optimum pH level) based on zeta-potential measurements. The stable suspensions still contained a substantial fraction of aggregates which were disintegrated by the excessive ultrasound treatment. The separation of the large particles out of the suspension was performed by centrifuging. The structural features, magnetic properties and microwave absorption of MNPs and their aqueous solutions confirm that we were able to obtain an ensemble in which the magnetic contributions come from the spherical MNPs. The particle size distribution in fractionated samples was narrow and they showed a similar behaviour to that expected of the superparamagnetic ensemble. Maximum obtained concentration was as high as 5 % of magnetic material (by weight). Designed assembly of de-aggregated nanoparticles is an example of on-purpose developed magnetic nanofluid.