Total Design in the Design and Development Process of a Remotely Operated Vehicle (ROV) with Particular Consideration of Sensorization.

This paper provides a methodological proposal for the design and development process of a remotely operated vehicle (ROV). The design core and product design specifications (PDS) of Pugh's Total Design model are considered, with a focus on the early stages of the product design and development process. A modularization of the functional groups of an ROV is proposed, focusing attention on the sensor system. The main concepts regarding ROVs are presented, Pugh's Total Design model is explained, justifying the application interest in technological projects, a methodological proposal adapted to ROV projects is provided, based on Pugh's Total Design model, with special interest in the early stages of the new product development process (NPD), the suitability of applying our own model of industrial design engineering in an ROV system is analyzed, and the contribution of this study is evaluated, proposing future work and lines of research.

A Hh-driven gene network controls specification, pattern and size of the Drosophila simple eyes.

During development, extracellular signaling molecules interact with intracellular gene networks to control the specification, pattern and size of organs. One such signaling molecule is Hedgehog (Hh). Hh is known to act as a morphogen, instructing different fates depending on the distance to its source. However, how Hh, when signaling across a cell field, impacts organ-specific transcriptional networks is still poorly understood. Here, we investigate this issue during the development of the Drosophila ocellar complex. The development of this sensory structure, which is composed of three simple eyes (or ocelli) located at the vertices of a triangular patch of cuticle on the dorsal head, depends on Hh signaling and on the definition of three domains: two areas of eya and so expression--the prospective anterior and posterior ocelli--and the intervening interocellar domain. Our results highlight the role of the homeodomain transcription factor engrailed (en) both as a target and as a transcriptional repressor of hh signaling in the prospective interocellar region. Furthermore, we identify a requirement for the Notch pathway in the establishment of en maintenance in a Hh-independent manner. Therefore, hh signals transiently during the specification of the interocellar domain, with en being required here for hh signaling attenuation. Computational analysis further suggests that this network design confers robustness to signaling noise and constrains phenotypic variation. In summary, using genetics and modeling we have expanded the ocellar gene network to explain how the interaction between the Hh gradient and this gene network results in the generation of stable mutually exclusive gene expression domains. In addition, we discuss some general implications our model may have in some Hh-driven gene networks.

Six-month efficacy and safety of amfepramone in obese Mexican patients: a double-blinded, randomized, controlled trial.

Amfepramone, also known as diethylpropion, is an anorectic drug used for the short-term treatment of obesity; however, its efficacy and safety during periods greater than 3 months has been scarcely studied. To evaluate the 6-month efficacy and safety of amfepramone treatment in obese adult Mexican patients resistant to diet and exercise, a double-blinded, randomized, and placebo-controlled clinical trial study was designed on 156 volunteers with a body mass index (BMI) greater than 30 kg/m2 and less than 45 kg/m2. Patients were randomized to receive a 75 mg tablet of amfepramone or placebo daily for 6 months. Primary outcome was the absolute body weight loss, whereas secondary outcomes were the percentage of patients who achieved at least 5% or 10% weight loss, as well as the improvement of anthropometric and metabolic parameters. Amfepramone treatment produced a superior efficacy to decrease body weight than placebo at 3 months (-4.9±0.25 kg vs. -0.7±0.32 kg) and 6 months (-7.7±0.52 kg vs. -1.1±0.7 kg). In addition, 64 and 34 patients achieved at least 5% or 10% weight loss, respectively, with amfepramone at 6 months, compared with 8 and 0 patients on placebo. Amfepramone also significantly improved BMI and waist circumference, but it only showed a favorable tendency in the waist-hip index (WHI), glucose, total cholesterol, low-density lipoproteins (LDL), high-density lipoproteins (HDL), triglycerides, heart rate, systolic blood pressure, and diastolic blood pressure at 3 and 6 months. Amfepramone produced only mild adverse events, and they were presented in a greater number than placebo only at 3 months, dry mouth being the the main adverse event. Data suggest that amfepramone is effective and well tolerated in obese Mexican patients during a 6-month regimen.

Factors influencing witnesses' perception of patient safety during pre-hospital health care from emergency medical services: A multi-center cross-sectional study.

AIM: To determine the factors related with the perception of feeling safe during pre-hospital emergency care. METHODS: A multi-centred, cross-sectional study. Data collection from April 2021 to March 2022, in the Centro de Emergencias Sanitarias 061 (Andalusia, Spain). INCLUSION CRITERIA: witnesses of health care by emergency medical services. EXCLUSION CRITERIA: minors, or communication barriers. OUTCOME VARIABLE: Witness Perceived Safety Scale ESPT10. The variables studied were related with sociodemographic data, the request for health care, the patient, the hospital transfer and patient safety incidents. A multivariate linear regression model was constructed for the dependent variable. The study followed STROBE statement. RESULTS: Responses were obtained from 1400 witnesses. The linear regression model showed that the score on the scale increased as the witnesses felt more satisfied (B = 1.302; p < 0.001). On the contrary, the score was lower when the witness reported a patient safety incident (B = -2.856; p < 0.001 and B = -3.166; p < 0.001), or when the assistance took place in a public space (B = -0.722; p = 0.017). CONCLUSIONS: The level of satisfaction, the occurrence of a patient safety incident, and the place of health care are related factors with the perception of the witnesses. The Witness Perceived Safety Scale ESPT10 could be considered a valid and useful patient safety indicator.

Risk of alterations in neurodevelopment in infants and preschool children with cancer.

BACKGROUND: Some cancer survivors experience difficulties with concentration, attention, and memory; however, there are no studies on neurodevelopment in patients under 5 years of age who are undergoing cancer treatment. Our aim was to evaluate neurodevelopment in cancer patients under 5 years of age using the Early Development Instrument (EDI) test, considering factors such as nutritional status, type of cancer, and treatment effect. METHODS: A cross-sectional study was conducted from February 2018 to March 2019. Patients with cancer diagnoses outside the central nervous system in any phase of cancer treatment were included. RESULTS: A total of 45 patients were included. Regarding fine motor skills, 28% of patients with retinoblastoma and 23% of patients with leukemia or lymphoma had a risk of developmental delay compared to 0% of patients with solid tumors (p = 0.025). The final results showed that 19 (42.2%) patients had normal neurodevelopment (gray), 7 (15.5%) had a delay in neurodevelopment (light gray), and 19 (42.2%) had a risk of developmental delay (black). Regarding developmental delay, 52% of patients in the leukemia and lymphoma group, 71% in the retinoblastoma group, and 23% in the solid tumor group presented developmental delay (p = 0.06). CONCLUSIONS: The risk of delay and lag in neurodevelopment is common in cancer patients under 5 years of age undergoing treatment. However, more studies are required to evaluate the effect of treatment on this group of patients as it may be affected by various factors.

INTRODUCCIÓN: En algunos pacientes supervivientes de cáncer se presentan dificultades de concentración, atención y memoria, sin embargo no hay estudios en relación al neurodesarrollo en pacientes menores de 5 años que se encuentran en tratamiento oncológico. Por lo que el objetivo fue valorar el neurodesarrollo en pacientes con cáncer durante el tratamiento oncológico mediante la prueba EDI tomando en cuenta diversos factores como su estado nutricional, tipo de cancer, y el efecto del tratamiento. MÉTODOS: Se realizó un estudio transversal, de febrero de 2018 a marzo de 2019. Se incluyeron pacientes mayores de 1 año y menores de 5 años con diagnóstico de cáncer fuera del sistema nervioso central, en tratamiento oncológico. RESULTADOS: Se incluyeron 45 pacientes. En el área motor fina el 28% de los pacientes con retinoblastoma y 23% con leucemias y linfomas se encontraron en rojo (retraso) en comparación con 0% de los pacientes con tumores sólidos (p = 0.025). En el resultado global se encontró que 19 (42.2%) pacientes tuvieron neurodesarrollo normal (gris), 7 (15.5%) rezago en el neurodesarrollo (gris claro) y 19 (42.2%) con riesgo de retraso en el desarrollo (negro). De los pacientes que presentaron riesgo de retraso el 52% fueron del grupo de leucemias y linfomas, el 71% en el grupo de retinoblastoma y el 23% del grupo de tumores sólidos (p = 0.06). CONCLUSIONES: La presencia de riesgo de retraso y rezago en el neurodesarrollo es frecuente en menores de 5 años con diagnóstico de cáncer. Se requieren más estudios, para evaluar el efecto del tratamiento en este grupo de pacientes, ya que pueden influir diversos factores.

Factors related to patients' perception of feeling safe in pre-hospital emergencies: a multicenter cross-sectional study. / Factores relacionados con la percepción de los pacientes de sentirse seguros en emergencias extrahospitalarias: estudio transversal multicéntrico.

OBJECTIVES: To identify factors related to patients' feeling of safety during prehospital emergencies. MATERIAL AND METHODS: Descriptive, multicenter cross-sectional study in the context of "061" emergency response services of Andalusia, Spain. Data were collected from April 2021 to March 2022. Patients attended and transported by emergency responders were eligible for inclusion. Patients were excluded if they were minors or in an altered state of consciousness, or had cognitive impairment or any barrier to communication. We calculated that a minimum sample size of 644 patients would be required. The outcome variable was the score on a 16-item scale of patient-perceived safety (ESP16, as abbreviated in Spanish). Sociodemographic, emergency service response, patient, and hospital transfer variables were studied in relation to ESP16 score. We also collected patient safety incident reports. Multivariate linear regression was used to analyze associations between the independent variables and the dependent outcome variable. Guidelines for Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) were followed. RESULTS: We received 1756 responses. The mean (SD) ESP16 score was 77.7 (5.6); the median score was 80. The ßô€€ƒ coefficients derived from the linear regression model were as follows for the variables associated with the ESP16 score: 2.799 (P .001) for satisfaction; -6.097 (P .001) for incident reports of errors, falls, harm, or injury; -2.742 (P .001) for reports of any other incident during attendance; 2.538 (P = .001) for use of the transport protocol; 1.157 (P .001) for type of emergency transport used; 0.726 (P = .014) for a cardiology diagnosis; and 1.195 (P = .003) for pain intensity. CONCLUSION: Patients' perception of safety is very high, as reflected by level of satisfaction, incident reports, use of a transport protocol, means of transport used, diagnosis, and pain level.

OBJETIVO: Conocer los factores que se relacionan con la percepción de los pacientes de sentirse seguros en emergencias extrahospitalarias. METODO: Estudio observacional descriptivo, transversal, multicéntrico, en los equipos de emergencias 061 de Andalucía. Se recogieron los datos desde abril 2021 hasta marzo 2022. Criterios de inclusión fueron pacientes asistidos y trasladados por equipos de emergencias, y los criterios de exclusión fueron menores de edad, deterioro cognitivo, alteración de consciencia, o barreras comunicativas. Se calculó un tamaño muestral mínimo de 644 sujetos. La variable resultado fue la puntuación de la Escala de Seguridad Percibida (ESP16). Se estudiaron variables sociodemográficas y relacionadas con la demanda asistencial, el paciente y el traslado. Además, se recogieron notificaciones de incidentes relacionados con la seguridad del paciente (IRSP). Se construyó un modelo de regresión lineal multivariable para la variable dependiente. Se siguieron las recomendaciones STROBE. RESULTADOS: Se obtuvieron 1.756 respuestas. La puntuación media en la ESP16 fue 77,7 (DE 5,6), con mediana de 80. El modelo de regresión lineal mostró que el nivel de satisfacción (B = 2,799; p 0,001), la notificación de error, caída, daño o lesión (B = ­6,097; p 0,001), la notificación de cualquier otro IRSP (B = ­2,742; p 0,001), la transferencia protocolizada (B = 2,538; p = 0,001), el tipo de recurso asistencial (B = 1,157; p 0,001), un diagnóstico final cardiológico (B = 0,726; p = 0,014) y un nivel de dolor intenso (B = 1,195; p = 0,003) influían en la escala ESP16. CONCLUSIONES: La percepción de seguridad del paciente es muy alta, y está condicionada por el nivel de satisfacción, la notificación de IRSP, la transferencia protocolizada, el recurso asistencial, el diagnóstico final y el nivel de dolor.

The Rayleigh-Taylor condition for the evolution of irrotational fluid interfaces.

For the free boundary dynamics of the two-phase Hele-Shaw and Muskat problems, and also for the irrotational incompressible Euler equation, we prove existence locally in time when the Rayleigh-Taylor condition is initially satisfied for a 2D interface. The result for water waves was first obtained by Wu in a slightly different scenario (vanishing at infinity), but our approach is different because it emphasizes the active scalar character of the system and does not require the presence of gravity.

Development and Validation of a Safety Scale Perceived by the Witness of Prehospital Emergency Care.

OBJECTIVE: The aim of the study was to design and validate a new tool to measure the security perceived by witnesses of patient care and hospital transfers, after requesting urgent assistance via the "061" phone number. METHODS: This is a descriptive observational, cross-sectional, design, and validation study of a scale conducted by telephone interview. Witnesses of urgent assistance and transfers by prehospital emergency medical services in the province of Cadiz, in the south of Spain, were the subjects of study. A questionnaire was designed after focus groups with patients, witnesses, and professionals. It consisted of 10 items, with Likert-type answers, and a range of 0 to 50 points. In addition to basic criteria (frequency of endorsement and ability to discriminate between groups), their validity (content and construct) and reliability (stability and homogeneity) were evaluated. Stability was evaluated by test-retest and homogeneity by means of two properties: internal consistency of items (corrected item-scale correlation coefficient) and internal consistency of the scale (Cronbach α coefficient). RESULTS: A total of 849 questionnaires were obtained, with scores between 0 and 50 points, with an average of 47.31 (median of 50). The exploratory factor analysis detected a component that explained 61.1% of the total variance. The intraclass correlation coefficient was 0.933 with 95% confidence interval between 0.900 and 0.954. The corrected item-scale correlation coefficient was greater than 0.596, and the Cronbach α coefficient was 0.927 (95% confidence interval, 0.919-0.934). CONCLUSIONS: The ESPT10 Witness Perceived Safety Scale is valid and reliable for quantifying the safety perception of witnesses of emergency assistance and transfers.

Graphics Processing Unit-Enhanced Genetic Algorithms for Solving the Temporal Dynamics of Gene Regulatory Networks.

Understanding the regulation of gene expression is one of the key problems in current biology. A promising method for that purpose is the determination of the temporal dynamics between known initial and ending network states, by using simple acting rules. The huge amount of rule combinations and the nonlinear inherent nature of the problem make genetic algorithms an excellent candidate for finding optimal solutions. As this is a computationally intensive problem that needs long runtimes in conventional architectures for realistic network sizes, it is fundamental to accelerate this task. In this article, we study how to develop efficient parallel implementations of this method for the fine-grained parallel architecture of graphics processing units (GPUs) using the compute unified device architecture (CUDA) platform. An exhaustive and methodical study of various parallel genetic algorithm schemes-master-slave, island, cellular, and hybrid models, and various individual selection methods (roulette, elitist)-is carried out for this problem. Several procedures that optimize the use of the GPU's resources are presented. We conclude that the implementation that produces better results (both from the performance and the genetic algorithm fitness perspectives) is simulating a few thousands of individuals grouped in a few islands using elitist selection. This model comprises 2 mighty factors for discovering the best solutions: finding good individuals in a short number of generations, and introducing genetic diversity via a relatively frequent and numerous migration. As a result, we have even found the optimal solution for the analyzed gene regulatory network (GRN). In addition, a comparative study of the performance obtained by the different parallel implementations on GPU versus a sequential application on CPU is carried out. In our tests, a multifold speedup was obtained for our optimized parallel implementation of the method on medium class GPU over an equivalent sequential single-core implementation running on a recent Intel i7 CPU. This work can provide useful guidance to researchers in biology, medicine, or bioinformatics in how to take advantage of the parallelization on massively parallel devices and GPUs to apply novel metaheuristic algorithms powered by nature for real-world applications (like the method to solve the temporal dynamics of GRNs).

[Advances in early childhood development: from neurons to big scale programs]. / Avances en el desarrollo infantil temprano: desde neuronas hasta programas a gran escala.

Early childhood development (ECD) is the basis of countries' economic and social development and their ability to meet the Sustainable Development Goals (SDGs). Gestation and the first three years of life are critical for children to have adequate physical, psychosocial, emotional and cognitive development for the rest of their lives. Nurturing care and protection of children during gestation and early childhood are necessary for the development of trillions of neurons and trillions of synapses necessary for development. ECD requires access to good nutrition and health services from gestation, responsive caregiving according to the child's developmental stage, social protection and child welfare, and early stimulation and learning opportunities. Six actions are recommended to improve national ECD programs: expand political will and funding; create a supportive, evidence-based policy environment; build capacity through inter-sectoral coordination; ensure fair and transparent governance of programs and services; increase support for multidisciplinary research; and promote the development of leaders. Mexico has made significant progress under the leadership of the Health Ministry, but still faces significant challenges. The recent creation of a national inter-sectoral framework to enable ECD with support of international organizations and the participation of civil society organizations can help overcome these challenges.

[Association between time of permanence at early education program (Estancias Infantiles) and developmental level for children in situation of poverty]. / Asociación entre el tiempo de permanencia en el Programa de Estancias Infantiles para niños en situación de pobreza y el nivel de desarrollo infantil.

BACKGROUND: Early education program (EEP) was created to support parents with 1 to 3 year olds living in poverty situation in Mexico, and includes education and child daycare for 8h five days per week. The objective of this study was to evaluate the association between length of stay in EEP and the level of development in children. METHODS: Cross sectional, population-based study conducted in two Mexican states. All children aged between 12 to 48 months enrolled in EEP from November 2014 to January 2015 were included. Child Development Evaluation (CDE) test was used to screen early development in every child. Normal early development prevalence odds ratio (OR) was calculated adjusted by gender, impairment and state, using as a reference those children with less than 30 days in the program. RESULTS: The study included 3,387 children from 177 EEP nurseries, from which 53% were male; age by group was divided in 12-24 months (22.3%), 25-36 months (37.6%) and 37-42 months (40.1%). Normal development adjusted OR by age was 1.9 (CI95%: 1.30-2.78) for 6-11 months, 2.36 (CI95%: 1.60-3.50) for 12-17 months, 2.78 (CI95%: 1.65-4.65) for 18-23 months and 3.46 (CI95%: 2.13-5.60) for >24 months. By area of development, a greater probability of having a normal result for language and social areas was observed after 6 months in the program, and for motor (both gross and fine) and knowledge areas after 12 months. CONCLUSION: The length of the stay in the EEP after 6 months significantly and progressively increases the probability of normal development regardless of gender and age.

[Curriculum analysis and comparison between strategies or programs for early child development in Mexico]. / Análisis y comparación curricular de las estrategias o programas para el desarrollo infantil temprano en México.

BACKGROUND: Most of the strategies or programs that support early child development in Mexico are independent efforts that vary in scale, services offered and means of providing them. For the evaluation of the quality of these programs, an important aspect is the curriculum content. The aim of this study was to analyze and compare the curriculum content of the different strategies or programs focused on the promotion and intervention of early child development, which are offered by the Federal Government in Health and Education sectors in Mexico. METHODS: We conducted a review of the curriculum content of the strategies and programs. The qualitative phase consisted of a comparative analysis where 75 indicators proposed by the Inter-American Development Bank were identified. The quantitative phase consisted of a descriptive analysis of the indicators. Finally, the analyses were compared to establish the performance of each one. RESULTS: Six strategies or programs were identified. In the analysis of the presence of indicators, the Oportunidades de Aprendizaje (Learning Opportunities, LO) strategy showed a larger number of indicators. In the amplitude analysis, both PEI-CONAFE and LO were the best balanced. Finally, in-depth analysis of the indicators LO and Skills for life were the best balanced while PEI-CONAFE was the best balanced in the social-emotional area, CeNSIA program for language and LO for cognitive development area. CONCLUSIONS: LO strategy showed the closest level of contents established by the Inter-American Development Bank.

[Steps to transform a necessity into a validated and useful screening tool for early detection of developmental problems in Mexican children]. / Pasos para transformar una necesidad en una herramienta válida y útil para la detección oportuna de problemas en el desarrollo infantil en México.

A screening test is an instrument whose primary function is to identify individuals with a probable disease among an apparently healthy population, establishing risk or suspicion of a disease. Caution must be taken when using a screening tool in order to avoid unrealistic measurements, delaying an intervention for those who may benefit from it. Before introducing a screening test into clinical practice, it is necessary to certify the presence of some characteristics making its worth useful. This "certification" process is called validation. The main objective of this paper is to describe the different steps that must be taken, from the identification of a need for early detection through the generation of a validated and reliable screening tool using, as an example, the process for the modified version of the Child Development Evaluation Test (CDE or Prueba EDI) in Mexico.

[Metabolic therapy with iodine 131 in patients with chronic renal failure. Clinical case]. / Terapia metabólica con yodo 131 en paciente con insuficiencia renal crónica. Caso clínico.

CASE REPORT: 62 year-old male with CKD stage 5 in dialysis program since 2012 who underwent surgery for papillary thyroid carcinoma with lymph node metastasis. Subsequently, the patient was admitted to the Unit of Metabolic Therapy at his reference hospital, where he is administered 80 millicuries of iodine-131 as a treatment associated with the surgery, unable to have his conventional dialysis, nursing interventions required in various stages of implementation of the continuous extrarenal clearance techniques (TCDE) were performed. CARE PLAN: The following care values were addressed targeted to patients undergoing treatment with I(131): specific equipment, personal protective measures and major diagnoses and nursing interventions. PROGRESS: TCDE, despite being attributed to very critical patients, they can be extrapolated to other patients in a given time. TCDE allowed these patients to undergo dialysis in a safe environment for staff, ensuring proper disposal of contaminated liquids. CONCLUSIONS: TCDE were an effective treatment for the removal of I131, a single ssesion being necessary to normalize the levels of radioactivity. Coordination between services allewed ensure proper and effective treatment for the patient.

[Population-based study of child developmental screening in Mexican PROSPERA beneficiaries younger than 5 years old]. / Escrutinio poblacional del nivel de desarrollo infantil en menores de 5 años beneficiarios de PROSPERA en México.

BACKGROUND: Evaluación del Desarrollo Infantil or Child Development Evaluation (CDE) test, a screening tool designed and validated in Mexico, classifies child development as normal (green) or abnormal (developmental lag or yellow and risk of delay or red). Population-based results of child development level with this tool are not known. The objective of this work was to evaluate the developmental level of children aged 1-59 months living in poverty (PROSPERA program beneficiaries) through application of the CDE test. METHODS: CDE tests were applied by specifically trained and standardized personnel to children <5 years old who attended primary care facilities for a scheduled appointment for nutrition, growth and development evaluation from November 2013 to May 2014. RESULTS: There were 5,527 children aged 1-59 months who were evaluated; 83.8% (n=4,632) were classified with normal development (green) and 16.2% (n=895) as abnormal: 11.9% (n=655) as yellow and 4.3% (n=240) as red. The proportion of abnormal results was 9.9% in children <1 year of age compared with 20.8% at 4 years old. The most affected areas according to age were language at 2 years (9.35%) and knowledge at 4 years old (11.1%). Gross motor and social areas were more affected in children from rural areas; fine motor skills, language and knowledge were more affected in males. CONCLUSIONS: The proportion of children with abnormal results is similar to other population-based studies. The highest rate in older children reinforces the need for an early-based intervention. The different pattern of areas affected between urban and rural areas suggests the need for a differentiated intervention.

[Impact of a training model for the Child Development Evaluation Test in primary care]. / Impacto de un modelo de capacitación de la prueba Evaluación del Desarrollo Infantil en la atención primaria.

BACKGROUND: The Child Development Evaluation (CDE) Test is a screening tool designed and validated in Mexico for the early detection of child developmental problems. For professionals who will be administering the test in primary care facilities, previous acquisition of knowledge about the test is required in order to generate reliable results. The aim of this work was to evaluate the impact of a training model for primary care workers from different professions through the comparison of knowledge acquired during the training course. METHODS: The study design was a before/after type considering the participation in a training course for the CDE test as the intervention. The course took place in six different Mexican states from October to December 2013. The same questions were used before and after. RESULTS: There were 394 participants included. Distribution according to professional profile was as follows: general physicians 73.4%, nursing 7.7%, psychology 7.1%, nutrition 6.1% and other professions 5.6%. The questions with the lowest correct answer rates were associated with the scoring of the CDE test. In the initial evaluation, 64.9% obtained a grade lower than 20 compared with 1.8% in the final evaluation. In the initial evaluation only 1.8% passed compared with 75.15% in the final evaluation. CONCLUSIONS: The proposed model allows the participants to acquire general knowledge about the CDE Test. To improve the general results in future training courses, it is required to reinforce during training the scoring and interpretation of the test together with the previous lecture of the material by the participants.

[Design of a supervision model for administration of the Child Development Evaluation Test at primary care facilities in Mexico]. / Diseño de un modelo de supervisión para la aplicación de la prueba de Evaluación del Desarrollo Infantil en las unidades de atención primaria en México.

BACKGROUND: The Child Development Evaluation (CDE) test designed and validated in Mexico has been used as a screening tool for developmental problems in primary care facilities across Mexico. Heterogeneous results were found among those states where these were applied, despite using the same standardized training model for application. The objective was to evaluate a supervision model for quality of application of the CDE test at primary care facilities. METHODS: A study was carried out in primary care facilities from three Mexican states to evaluate concordance of the results between supervisor and primary care personnel who administered the test using two different methods: direct observation (shadow study) or reapplication of the CDE test (consistency study). RESULTS: There were 380 shadow studies applied to 51 psychologists. General concordance of the shadow study was 86.1% according to the supervisor: green 94.5%, yellow 73.2% and red 80.0%. There were 302 re-test evaluations with a concordance of 88.1% (n=266): green 96.8%, yellow 71.7% and red 81.8%. There were no differences between CDE test subgroups by age. CONCLUSIONS: Both shadow and re-test study were adequate for the evaluation of the quality of the administration of the CDE Test and may be useful as a model of supervision in primary care facilities. The decision of which test to use relies on the availability of supervisors.

[Diagnostic evaluation of the developmental level in children identified at risk of delay through the Child Development Evaluation Test]. / Evaluación diagnóstica del nivel de desarrollo en niños identificados con riesgo de retraso mediante la prueba de Evaluación del Desarrollo Infantil.

BACKGROUND: The Child Development Evaluation (or CDE Test) was developed in Mexico as a screening tool for child developmental problems. It yields three possible results: normal, slow development or risk of delay. The modified version was elaborated using the information obtained during the validation study but its properties according to the base population are not known. The objective of this work was to establish diagnostic confirmation of developmental delay in children 16- to 59-months of age previously identified as having risk of delay through the CDE Test in primary care facilities. METHODS: A population-based cross-sectional study was conducted in one Mexican state. CDE test was administered to 11,455 children 16- to 59-months of age from December/2013 to March/2014. The eligible population represented the 6.2% of the children (n=714) who were identified at risk of delay through the CDE Test. For inclusion in the study, a block randomization stratified by sex and age group was performed. Each participant included in the study had a diagnostic evaluation using the Battelle Development Inventory, 2nd edition. RESULTS: From the 355 participants included with risk of delay, 65.9% were male and 80.2% were from rural areas; 6.5% were false positives (Total Development Quotient ˃90) and 6.8% did not have any domain with delay (Domain Developmental Quotient <80). The proportion of delay for each domain was as follows: communication 82.5%; cognitive 80.8%; social-personal 33.8%; motor 55.5%; and adaptive 41.7%. There were significant differences in the percentages of delay both by age and by domain/subdomain evaluated. CONCLUSIONS: In 93.2% of the participants, developmental delay was corroborated in at least one domain evaluated.

[Reliability for detection of developmental problems using the semaphore from the Child Development Evaluation test: Is a yellow result different from a red result?] / Confiabilidad de la detección de problemas de desarrollo mediante el semáforo de la prueba de Evaluación del Desarrollo Infantil: ¿es diferente un resultado amarillo de uno rojo?

BACKGROUND: The Child Development Evaluation (CDE) is a screening tool designed and validated in Mexico for detecting developmental problems. The result is expressed through a semaphore. In the CDE test, both yellow and red results are considered positive, although a different intervention is proposed for each. The aim of this work was to evaluate the reliability of the CDE test to discriminate between children with yellow/red result based on the developmental domain quotient (DDQ) obtained through the Battelle Development Inventory, 2nd edition (in Spanish) (BDI-2). METHODS: The information was obtained for the study from the validation. Children with a normal (green) result in the CDE were excluded. Two different cut-off points of the DDQ were used (BDI-2): <90 to include low average, and developmental delay was considered with a cut-off<80 per domain. Results were analyzed based on the correlation of the CDE test and each domain from the BDI-2 and by subgroups of age. RESULTS: With a cut-off DDQ<90, 86.8% of tests with yellow result (CDE) indicated at least one domain affected and 50% 3 or more compared with 93.8% and 78.8% for red result, respectively. There were differences in every domain (P<0.001) for the percent of children with DDQ<80 between yellow and red result (CDE): cognitive 36.1% vs. 61.9%; communication: 27.8% vs. 50.4%, motor: 18.1% vs. 39.9%; personal-social: 20.1% vs. 28.9%; and adaptive: 6.9% vs. 20.4%. CONCLUSIONS: The semaphore result yellow/red allows identifying different magnitudes of delay in developmental domains or subdomains, supporting the recommendation of different interventions for each one.

Avances en el desarrollo infantil temprano: desde neuronas hasta programas a gran escala / Advances in early childhood development: from neurons to big scale programs

Resumen: El desarrollo infantil temprano (DIT) es la base del desarrollo económico y social de los países y de su capacidad de cumplir con los Objetivos de Desarrollo Sostenible (ODS). La gestación y los primeros 3 años de vida son fundamentales para que los niños tengan un desarrollo físico, psicosocial, emocional y cognitivo adecuado para el resto de sus vidas. La crianza y el cuidado cariñoso y sensible a las necesidades de los niños durante la gestación y la primera infancia son esenciales para el desarrollo de los billones de neuronas y trillones de sinapsis necesarias. El DIT requiere de acceso a buena nutrición y servicios de salud desde la gestación, crianza sensible de acuerdo a la etapa de desarrollo del niño, protección social y del bienestar del niño, y oportunidades de estimulación y aprendizaje temprano. Para mejorar el DIT a nivel nacional se recomiendan seis acciones con fuerte participación de la sociedad civil: expandir la voluntad política y financiamiento, crear un entorno de políticas favorables basadas en evidencia, construir capacidad con coordinación intersectorial, asegurar una gobernanza justa y transparente de los programas y servicios, aumentar apoyo a la investigación multidisciplinaria y promover el desarrollo de líderes. México ha logrado avances importantes en DIT bajo el liderazgo del Sector Salud, pero enfrenta retos significativos para implementar estas recomendaciones. La reciente creación de un marco nacional intersectorial favorable al DIT con apoyo de los organismos internacionales y la participación de la sociedad civil pueden ayudar a sobreponer estos retos.

Abstract: Early childhood development (ECD) is the basis of countries' economic and social development and their ability to meet the Sustainable Development Goals (SDGs). Gestation and the first three years of life are critical for children to have adequate physical, psychosocial, emotional and cognitive development for the rest of their lives. Nurturing care and protection of children during gestation and early childhood are necessary for the development of trillions of neurons and trillions of synapses necessary for development. ECD requires access to good nutrition and health services from gestation, responsive caregiving according to the child's developmental stage, social protection and child welfare, and early stimulation and learning opportunities. Six actions are recommended to improve national ECD programs: expand political will and funding; create a supportive, evidence-based policy environment; build capacity through intersectoral coordination; ensure fair and transparent governance of programs and services; increase support for multidisciplinary research; and promote the development of leaders. Mexico has made significant progress under the leadership of the Health Ministry, but still faces significant challenges. The recent creation of a national intersectoral framework to enable ECD with support of international organizations and the participation of civil society organizations can help overcome these challenges.