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The resource water it is a priority, a necessity of first order to guarantee the economic and social development, mainly, for the health and survival of the human species in the whole planet. To achieve a level of environmental education by means of a process of teaching-learning developer is our purpose, however, this process at the present time presents inadequacies. He/she was carried out the study of the theoretical, methodological and practical conditions in that is developed, in order to reach the appropriate preparation about the knowledge of the water and their importance for their acting ulterior.Los applied methods they allowed to corroborate the current state, as well as the revision of documents, on the content to establish the theoretical and methodological foundations of the investigation. The results obtained through the application of these methods allowed the elaboration of reports and to carry out the corresponding qualitative valuations. In the reached preparation, by means of the execution of a system of activities they are identified: that these they manifested in all moment motivation and interest to achieve their preparation, what allowed them the change in their performance way. They elevated the level of commitment, interest and creativity, they were nurtured of knowledge for their present and future application.&nbsp, El recurso agua es una prioridad, una necesidad de primer orden para garantizar el desarrollo económico y social, sobre todo, para la salud y supervivencia de la especie humana en todo el planeta. Lograr un nivel de educación ambiental mediante un proceso de enseñanza-aprendizaje desarrollador es nuestro propósito, sin embargo, este proceso en la actualidad presenta insuficiencias. Se realizó el estudio de las condiciones teóricas, metodológicas y prácticas en que se desarrolla, a fin de alcanzar la preparación adecuada sobre el conocimiento del agua y su importancia para su desempeño ulterior. Los métodos aplicados permitieron corroborar el estado actual, así como la revisión de documentos, sobre el contenido para establecer los fundamentos teóricos y metodológicos de la investigación. Los resultados obtenidos a través de la aplicación de estos métodos permitieron la elaboración de informes y realizar las valoraciones cualitativas correspondientes. En la preparación alcanzada, mediante la ejecución de procederes didácticos a través de un sistema de actividades se identifican: que estos manifestaron en todo momento motivación e interés por lograr su preparación, lo que les permitió el cambio en su modo de actuación. Elevaron el nivel de compromiso, interés y creatividad, se nutrieron de conocimientos para su aplicación presente y futura.

SND@LHC is a compact and stand-alone experiment designed to perform measurements with neutrinos produced at the LHC in the pseudo-rapidity region of ${7.2 < \eta < 8.4}$. The experiment is located 480 m downstream of the ATLAS interaction point, in the TI18 tunnel. The detector is composed of a hybrid system based on an 830 kg target made of tungsten plates, interleaved with emulsion and electronic trackers, also acting as an electromagnetic calorimeter, and followed by a hadronic calorimeter and a muon identification system. The detector is able to distinguish interactions of all three neutrino flavours, which allows probing the physics of heavy flavour production at the LHC in the very forward region. This region is of particular interest for future circular colliders and for very high energy astrophysical neutrino experiments. The detector is also able to search for the scattering of Feebly Interacting Particles. In its first phase, the detector will operate throughout LHC Run 3 and collect a total of 250 $\text{fb}^{-1}$., Comment: 57 pages. To be published in JINST

Answers to the LHCC referees concerning the SND@LHC Technical Proposal

SND@LHC is a proposed, compact and stand-alone experiment to perform measurements with neutrinos produced at the LHC in an hitherto unexplored pseudo-rapidity region of $7.2 < \eta < 8.6$, complementary to all the other experiments at the LHC. The experiment is to be located 480 m downstream of IP1 in the unused TI18 tunnel. The first phase aims at operating the detector throughout LHC Run 3 to collect a total integrated luminosity of 150 fb$^{−1}$. Following the review of the Letter of Intent [1], submitted in August 2020, LHCC recommended the collaboration to proceed with the preparation of a Technical Proposal (TP), reported herein.

Objective: Drowning is a major problem of public health in Spain, with a high number of deaths. The main strategy to address it is prevention, going through knowledge and education. The aim of this study was to analyze from a public health perspective a) the knowledge of young participants from 14 to 16 years old about drowning prevention, swimming skills and risks on the beach and b) to evaluate a pilot program with educational video for drowning prevention due to rip currents. Methods: For this purpose, a three-phase study was carried out: (1) application of a questionnaire to identify bath habits, risk perception in relation to rip currents and swimming level, (2) evaluation of a video for the identification of rip current risk and (3) evaluation of the assimilation of the visualized content one month after the intervention. 120 adolescents participated in this study during march, april and may, 2019. A descriptive analysis and comparisons with Chi-Square were performed in SPSS. Results: 120 adolescents participated in this study during March, April and May, 2019. 96.7% knew how to swim, but 44.1% had a basic level. More than half of the participants did not know rip currents or did not identify them in swimming areas. The video achieves the assimilation of concepts related to rip currents and drowning prevention. Conclusions: These findings suggest that adolescents have a lack of knowledge about rip currents and are not able to identify safe swimming areas. The use of health communication strategies based on the interests and profiles of young people have shown an improvement in the perception of risks at beaches on the sample studied.

Global climate studies show that not only temperatures are increasing and precipitation levels are becoming more varied, all projections indicate these trends will continue. It is therefore imperative that we understand changes in climate over agricultural areas and their impacts on agriculture production and food security. This study presents new analysis on the impact of changing climate on agriculture and food security, by examining the evidence on recent climate variability and extremes over agricultural areas and the impact of these on agriculture and food security. It shows that more countries are exposed to increasing climate variability and extremes and the frequency (the number of years exposed in a five-year period) and intensity (the number of types of climate extremes in a five-year period) of exposure over agricultural areas have increased. The findings of this study are compelling and bring urgency to the fact that climate variability and extremes are proliferating and intensifying and are contributing to a rise in global hunger. The world’s 2.5 billion small-scale farmers, herders, fishers, and forest-dependent people, who derive their food and income from renewable natural resources, are most at risk and affected. Actions to strengthen the resilience of livelihoods and food systems to climate variability and extremes urgently need to be scaled up and accelerated. This publication was developed as a background study for "The State of Food Security and Nutrition in the World 2018" (available at http://www.fao.org/documents/card/en/c/I9553EN)., FAO Document Repository: https://doi.org/10.4060/cb2415en

Fundamento. Describir los factores sociodemográficos de pacientes con parálisis de cuerda vocal unilateral (PCVU) a los que se aplica un tratamiento logopédico y analiza el impacto en la calidad vocal tras la terapia. Metodología. Se incluyeron 47 pacientes con PCVU diagnosticada mediante vídeo-laringoscopia. Todos recibieron intervención logopédica repartida en 15 sesiones y estructurada en tres etapas progresivas. Se instruyó al paciente en técnicas vocales, coordinación fono-respiratoria, control del soplo, tonificación glótica e impostación vocal. Los parámetros incluidos en el estudio antes y después de la terapia fueron: cierre glótico, Voice Handicap Index-10 (VHI-10) para medir la autopercepción de calidad vocal y escala GRABS para la calidad vocal. Resultados. La edad media fue 51 años (rango 20-80), 60% mujeres. La causa quirúrgica fue la más frecuente (72%). El 40% desempeñaban una profesión relacionada con la voz. El tiempo medio desde el diagnóstico hasta el inicio del tratamiento fue 5 meses (2-12). El cierre glótico completo aumentó de 34 a 80% (p

Climate change will impact the productivity of maize-based crop-livestock systems and the livelihoods of smallholders depending on them in semi-arid Zimbabwe. The large diversity in resource endowment and production objectives in rural communities differentially influences this impact and the adaptation potential of households. Also, crops and livestock are affected differently by climate change. Information on the effects on whole-farm productivity, income and food self-sufficiency is scarce and knowledge on the disaggregated benefits of climate-smart interventions for heterogeneous farmer populations is needed to better target decision support. Linking climate with dynamic crop and livestock models, and an economic model, an integrated multi-model framework was developed for analyzing the sensitivity of current systems to climate change and the potential for future systems to adapt. Information on assets and farm management from 160 households in Nkayi district allowed distinguishing categories of low, medium and high resource endowment. Results of 20 GCMs indicated that by mid-century Nkayi will become warmer with a reduction in early-season rainfall. The APSIM and DSSAT crop models predicted a 1-9% and >15% decline in actual and potential maize yield respectively. Using crop model results as input, the LivSim livestock model indicated small impacts on milk and animal production that varied strongly across farms. Integrating crop and livestock model outputs in the whole-farm economic model TOA-MD, we predicted that 60% of Nkayi farmers will be adversely impacted by climate change. Fertilizer and leguminous forages can mitigate climate change effects on crop and livestock production and reduce the proportion of vulnerable households to 20%. Benefits differ by farm type: with small benefits (200-500 US$) from adaptation options, small and medium farms remain poor, while better-off farms increase income more substantially (by 1200 US$). Our integrated modelling framework allows ex-ante impact assessment of incremental but also more transformative climate-smart interventions on heterogeneous farming communities vulnerable to climate change.

Gold and silver complexes with the N-[bis(isopropoxy)-thiophosphoryl]thiobenzamide (HL1) and N-[bis(isopropoxy)-thiophosphoryl]-N′-phenylthiourea (HL2) ligands are reported, The compounds [M(HL)(PPh3)]TfO, [Ag(HL)(TfO)] and [Ag(HL)(PPh3)2]TfO were obtained by the reaction of both ligands with the corresponding trifluoromethanesulfonate salts. The (acetylacetonato)gold and -silver materials [M(acac)(PPh3)] or [Au(acac)(C6F5)2] cause deprotonation of the ligands and afford [ML(PPh3)] or [AuL(C6F 5)2], whereas the reaction of [Au(TfO)(PPh3)] with HL1 in a 2:1 molar ratio in KOH/MeOH affords [Au 2(L1)(PPh3)2]TfO, The first homoleptic anionic metal compounds [AuIL2]- are also reported. © Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.

The free nido-diphosphine anions [(PR2)2C2B9 H10]- R = Ph, iPr) show luminescence properties whereas the closodiphosphines [(PR2)2C2B10H10] do not. Four families of three-coordinate complexes of stoichiometry [Au- {(PR2)2C2B10H10}L]OTf (L = tertiary phosphine) and [Au{(PR2)2C2B9H10}L] have been studied in order to analyze the influence of the closo- or nido-nature of the diphosphine, the monophosphine coordinated to gold and the substituent at the diphosphine on the luminescence of the complexes. Only the nido-derivatives show luminescence. The maxima of the emissions are shifted to lower energies than those of the corresponding free nido-diphosphines. When the substituent at the diphosphine is phenyl, a new emission appears, which has been assigned as arising from a metal to ligand charge transfer [Au*(L)] excited state.

The reaction of the asymmetric ligand 2-(diphenylphosphino)aniline (PNH2) with gold(I), silver(I) or copper(I) substrates in various molar ratios leads to the complexes [M(PNH2)2]A (M = Au, A = TfO (1); M = Ag, A = TfO (2), ClO4 (3); M = Cu, A = TfO (4)), the homodinuclear derivatives [M(PNH2)]2A2 (M = Ag, A = TfO (7), ClO4 (8); M = Cu, A = TfO (9)) or [M(PNH2)3]A (M = Au, A = TfO (12); M = Ag, A = ClO4 (13); M = Cu; A = TfO (14)). Reaction of [AuCl(PNH2)] with AgClO4 (1:1) in acetone causes the ligand to condense with the solvent, resulting in the synthesis of [Au(PN=CMe2)]2(ClO4)2 (5). Treatment of the gold(I) compound 1 with the same silver(I) or copper(I) starting materials as before gives the heteronuclear species [AuM(PNH2)2](TfO)2 (M = Ag (10); M = Cu (11)). The optical properties of some of these complexes have been studied and the crystal structures of compounds 5, 10 and 12 have been determined by X-ray diffraction.

The dinuclear head-to-tail complexes [M2(PPh2CH2SPh)2]2- (M = Cu (1), Ag (2a, 2b), Au (4)) are obtained either by reaction of [Cu(CH3CN)4]CF3SO3, AgClO4, AgCF3SO3, with equimolecular amounts of PPh2CH2SPh or of [AuCl(PPh2CH2SPh)] (3), prepared by reaction of [AuCl(tht)] and PPh2CH2SPh, with AgCF3SO3. The crystal structures of complexes 2a and 4 have been established by X-ray diffraction studies. Ab initio HF/II and MP2/II calculations have been performed on the [M2(H2PCH:SH)2]2+ model, indicating that metallophilic attraction is indeed present for all the coinage metals as a correlation effect and is strengthened in the case of gold by relativistic effects. Since experimental and theoretically predicted geometries are in close agreement, we assume that our calculations are accurate enough to obtain valid conclusions.