Fatores da satisfação, fidelidade e recomendação em serviço de saúde: estudo em setor ambulatorial de hospital

This thesis deals with the factors affecting customer satisfaction, loyalty and recommendation in the health care sector. It is adapted a model proposed by Johnson et al. (2001) of quality and loyalty antecedent factors and it is conducted a survey with a sample of 109 customers of a hospital on the ambulatory in Natal city, a capital of a Northeastern State of Brazil. It is carried descriptive and multiple regression statistical analysis. The main findings related to satisfaction are that quality factors of doctor professionalism, clerical staff efficiency, consultancy room comfort, time to provide the medical consultancy but also hospital localization are the most significant factors affecting satisfaction. Regarding personal full loyalty, satisfaction with the hospital and affective commitment are the main factors yet for partial loyalty image and calculate commitment play the main role. For recommendation satisfaction, image and brand are the main factors. The overall model used fairly explains the satisfaction, loyalty and recommendation outcomes with varying factors regarding each final purpose, e.g. loyalty or recommendation

Avaliação da saúde bucal na atenção básica: a perspectiva do usuário

Nowadays, the basic attention in health works according to the Health Family Program (HFP), which is responsible for the organization of the health services with view to provide an appropriate attendance to the needs of the population. Its expansion is expressive in whole country and, the oral health, included in this process, has been seen as a possibility of change the health practices centered in the disease. In face of this perspective, the proposal of study is to discover possible changes in the health care model of oral health in a district, made possible through the perception, evaluation and degree of satisfaction of the user s health service. To reach such objectives, the district of Macaíba in the State of Rio Grande do Norte, was chosen for operational subjects, such as time of implantation of HFP and great covering of this program. The current research used interviews structured with objectives and subjectives questions and questionnaires of socioeconomic characterization addressed to two hundred and seventy (270) individuals (ninety users of an Urban PSF, ninety of a Rural PSF and ninety of an unit non PSF). The analysis of the data was accomplished through the software SPSS/99, that made possible a statistical and analytic appreciation. The HFP units and non HFP units has shown to sort the common odontology problems of the community, and this didn't establish a direct relationship with the general satisfaction. On the other hands, the programmed consultation is related with lager satisfaction of the users. The access form to the odontology treatment of the Units, the satisfaction with the attendance rendered by the dentist and the equip, enough dentists for the community and the social class of the user were decisive for the general satisfaction with the service of oral health. On the other hand, variables as age and education, resolution of the problem and physical conditions of the unit didn't influence the general satisfaction. In spite of the progresses in the implantation of the oral health in ESF, preventive activities, visits at home, access and social participation still reproduce the traditional model of attendance, showing a primary change process

Dependência química em mulheres :um estudo sobre o consumo de medicamentos ansiolíticos no serviço público de saúde de Natal/RN

This work was concerned to investigate the meaning attributed to anxiolytic drugs by women, in public health service. It proposes a joint analysis through a link between three dimensions: the woman, the drug, and public health service itself, in an hegemonic medical assistance model. It is observed that the relation between these elements has a great influence over the use and construction of a particular meaning, by the user. The medication is analysed as a consumption merchandise and as an health symbol. In this way, it reflects a biologized vision, which believes the drug as a solution for all health problems. It tries to analyse the generalized medical prescription for anxiolythics and it s consequences. It focalizes also the production and utilization of public health services by patients, mainly women. The question related to the use of anxiolytics and the meaning construted by women is analysed focusing the way that relations of masculine/feminine gender are organized in our society. At this point of view, it tries to understand the dimension that these questions have in subjectivity production, and how it acts in the health/disease process. Finally, this work tries to understand, in a broad sense, the use of anxiolytics looking at the problem not only as a biological question, but also as a cultural matter. The research was done over seventeen women, all of them anxiolytic users. It was used, as research instrument, semi-structured interview associated with methodological analysis of user s speeches

Avaliação da qualidade da atenção primária à saúde da criança no Rio Grande do Norte: visão das usuárias

The study aims to evaluate the quality of the work processes of the teams from the Family Health Strategy regarding the comprehensive health care for children, in the view of users in the state of Rio Grande do Norte. This is a cross-sectional observational evaluative research with quantitative approach. The primary data are part of the External Review from the Program of Improving Access and Quality of Primary Care (PMAQ) in 2012. 190 women were interviewed. The inclusion criteria was the presence in the clinic at the time of the survey, have attended the service in the last 12 months and be a mother or companion of a child up to two years old. A research protocol was developed in the dimensions of Growth and Development, Breastfeeding and nutrition, and health problems and its variables. The results revealed that mothers / companions who responded to the questionnaire 71% were aged between 18 and 35 years, 92.1% were literate, 96.3% had a monthly income and 62.6% received financial assistance from the government. As for the children, 39.4% were aged between 13 to 24 months. In promotion and prevention actions for children, 64.2% had consultation up to the 7th day of life, 91.1% underwent the screening test, 95.3% had a health handbook, 98.9% had a vaccine, 17.9% breastfed or breastfeed from 6 to 24 months. As for link and continuity of care, 86.8% of the children were accompanied by the same professional staff and 59.5% left with next consultation scheduled. In acute situations 42.4% of the children went to the health unit and 64% of these were attended. It is concluded that the actions involving prevention and health promotion of children in RN, are evaluated positively by the service users and meet the requirements of MS, as well as link and continuity of care. The weakness in access and reception of users is evident, indicating the need to adapt the service to the demand of health and planning actions to welcome all who seeks basic health unit-UBS

O Serviço Social e a exclusão/inclusão social dos portadores de HIV/AIDS :demandas e desafios nos hospitais públicos

This research presents the labors developed by the Social Service unto socially excluded HIV/Aids positives at public hospitals in Rio Grande do Norte (RN). It purposes to identify and to analyze the demands brought by the holder onto the Social Service professional as well as the challenges the latter face to minister to the former. It privileges, from the methodological viewpoint, the qualitative and quantitative analysis with the application of questionnaires, direct observation, semi-structured interviews and bibliographic references. Data were collected from 12 (twelve) social assistants who work at Giselda Trigueiro Hospital in Natal (7) and Rafael Fernandes Hospital in Mossoró (5). The central hypothesis that guided this study is that the social inclusion/exclusion process experienced by the HIV/Aids positive on society implies a demand for the Social Service that is inserted in the public health context (specially in HIV-referred public hospitals), whose agents, however, when attempting to answer those demands, meet obstacles due to both the precariousness of public health services and the social complexity that concerns the HIV/Aids epidemic. Results point out that, de facto, the HIV/Aids epidemic, because of the social exclusion/inclusion process to which the holder is subject results a demand for the social agents at hospitals. Demands rise principally from the patient s life condition, considering the increasing pauperization in the epidemic context. As to what it is concerned, social assistants, responding to the needs, come across concrete twofold challenges: the illness in itself, for all social, negative aspects that make part of quotidian life of holders; and the precarious state of the public health service in RN State, since that working conditions are unsatisfactory

Representações sociais dos trabalhadores de saúde da atenção básica sobre envelhecimento e o atendimento ao idoso

This study aims to identify the social representations built on senior care health workers of Primary Care. This is an exploratory research within the subsidized social representations held in 100 Basic Health Units in the city of João Pessoa-PB, with a sample of n= 204 workers of both sexes, who agreed to participate. To collect the data used to set an interview in two parts: the first looked at the Test of Free Association of Words using the inductive stimulus "senior care". The interviews were analyzed with the help of a software for quantitative analysis of textual data ALCESTE (version 2010). The results were interpreted from the theoretical framework of social representations. The study included 178 women (87.25%) and 26 men (12.75%), working in Family Health Units in the city of João Pessoa, the majority are aged between 40-49 years of age ( 28.92%), and have higher education with 81.86%. The results of Alceste link to the term inducer six (6) where the hierarchical classes representing senior care workers as synonymous with care and attention, showing situations neglect of the elderly, for that patience is required to promote the increase of disease prevention and living with the elderly to generate humanization in health services. It is considered that the social representations of health workers on assistance to the elderly may support modeling of strategic actions in health services with health promotion programs for large groups, able to modify practices and behavior in elder care and strengthening the policy was directed at the elderly

A pessoa idosa com doença crônica não transmissível atendida em serviços de média complexidade na cidade de Natal/RN

The demographic and epidemiological transition process caused by a declining in birth rates and in mortality, also changes occurred in morbidity and mortality is represented by the increasing of the aging population and the raising of chronic diseases. These diseases are characterized by multiple etiologies, risk factors, long latency period, a prolonged evolution, non-infectious origin and it has association with functional impairment and disability. Thus, elderly with chronic non-communicable disease has priority because they belong to a vulnerable group to get affection of comorbidities in aging, with increased demand and spending on health services. This study is aimed to analyse the understanding of elderly people with chronic non comunicable disease in the medium complexity service as a contribution to the improvement of health care in the city of Natal / RN. This is a descriptive and exploratory study with a quantitative approach, carried out at the Specialized Center for Elderly Health Care and at the Pescadores Hospital. The population was composed of 4,180 persons with a sample of 124 elderly aged above 60 years, attended in these medium complexity services. The instrument, a structured form, adapted from a questionnaire for monitoring risk and protective factors for chronic disease of the Ministry of Health. To collect data was was used the interview form containing demographic data, habits, health status and health care services. The results were processed using the Statistical Package for Social Science, version 18.0, analyzed by simple statistics. It was found that most seniors were female, predominantly between 70 and 74 years old, married, with a brown skin tone and Catholic religion, more than half had incomplete basic education, family income between one to two minimum wages and living with their families. Regarding the interviewers lifestyle, 94.4%, of them ate chicken and 97.6%, fruits, it was observed a reduction in smoking, alcoholism habits and physical activity according to the increasing age, 58.1 and 18.5% had insomnia18,5 % used sleeping pills. The elderly (51.6%) reported using services in times of sickness, seeking primary care at first (30.6%), 52% did not receive referral and was looking for free demand (38.7%). The most reported morbidity was hypertension, followed by musculoskeletal disorders. Regarding the difficulties in seeking health services, the delay in treatment and the waiting line were the most cited by the elderly. Almost all of them reported no activities to promote health in these services and those who received individual counseling on chronic diseases. Almost always, the health professionals who care of them, were mostly doctors followed by nurses. Based on the results presented, it is considered that the health services of medium complexity must undergone a more continuous dialogue with other attention level and focus on actions of health promotion and prevention. It is also recommended the necessity for qualified professionals to delivery health care to elderly and the implementation of protocols by a multidisciplinary health team, intending to provide better and continous care for the elderly with chronic diseases. The healthcare professionals who served them, were mostly physicians, followed by nurses. Through the results presented, it is considered that the medium complexity healthcare services need to perform a more continuous dialogue with the other levels of attention focusing attention to the health promotion and prevention actions. It is also recommended the necessity for qualified professionals to delivery healthcare for the elderly, in addition, a protocol implementation for the multidisciplinary health care team, to provide better care, and also the care continuity to elderly with chronic diseases

Gestão ambiental na saúde pública: um estudo sobre a percepção ambiental de gerenciamento de resíduos sólidos de serviços de saúde, dos servidores do Hospital Universitário Onofre Lopes do Rio Grande do Norte

This research has aimed at studying the perception of University Hospital Onofre Lopes (HUOL) s workers on the environmental management plan of RSSS. They have been interviewed 250 workers: doctors, nurses, nursing assistants, and cleaners. It was used an exploratory and descriptive research of the type Survey, which aims at obtaining of data or information on characteristics, actions or opinions of any group of people. The questions of the questionnaire were of the kind objective", formulated in a model "scale", analyzed in according to the positioning of the interviewee. The wastes of health service have high potential for environmental impact in the activities from HUOL. Actions or environmental protective policy can improve the image of HUOL. They have been detected divergences on the rigor in application of law of ANVISA. The HUOL s workers unaware of the law of ANVISA and they have little or no knowledge about the practices of environmental control, public health and, they do not know the Environmental Management System ISO 14001. They have divergent views on the degree of importance of ISO 14001. There is not a Waste Management Plan for Health Service and / or is not disclosed for most of HUOL workers. It has not carried out audits or defined the goals and objectives. Besides, it has not been identified legal requirements, and there has not been communication about the service is performed or has been made a critical analysis and no control of documents the environmental management plan. The HUOL have not had a committee of environmental management. The direction of HUOL has not been organized courses, training and recycling of waste on environmental control of the health service. On a scale from 01 to 05, the level of aware level concerning to the waste management from health services of the workers, so is at the threshold between 01 and 02. For the reversal of this situation, the first and urgent step is the creation and institutionalization the environmental management committee of the University Hospital Onofre Lopes

Gestão ambiental na saúde pública: um estudo sobre a percepção ambiental em laboratórios de análises clínicas

This objective of this work was to investigate the enviromental perception of technician of clinical laboratories, in the city of the Natal/RN, focusing the generated environmental aspects and impacts in the activities, the strategical importance of the environmental management for the activity, as well as the knowledge about environmental norms and resolutions applied to the sector. A type survey exploratory and descriptive was carried through, using a questionnaire applied in 82 clinical laboratory, getting a return tax of 53,65%, or either, 44 laboratories. The results of the descriptive analyses point with respect to environmental conscience of the interviewed, therefore the majority (75%) described the activities of clinical analyses as great imapact on the environment. Although the interviewed present certain knowledge on the advantages of practical of envivonmental protection and the risks that the activities of clinical analyses offer, some important practical of environmental protection arer not develped by the majority of the iterviewed. The carried through statistical analyses had allowed to investigate the level of environmental knowledge of the professionals of the sector, being consisted themselves that they present little knowledge on practical ISO 14001 and of environmental protection in the health public sector. It can be conclude that, a program of environmental qualification for the sector becomes necessary, in order to improve the knowledge of the professionals of the area, and that the majority of the professionals would have a good recptivity therefore recognize the benefits of the practicadl of environmental protection for the competitiveness of the clinical analyses laboratories

Uma avaliação do serviço de atenção domiciliar/programa melhor em casa: o caso do hospital Monsenhor Walfredo Gurgel

This dissertation try to understand how management actions implemented by Monsenhor Walfredo Gurgel Hospital in the city of Natal promote effectively the benefits of Home Care Services / Programa Melhor em Casa . The research is exploratory and descriptive, qualitative approach. Data were collected through document analysis and the interviews with the managers of the Program in Health Department and Hospital beyond the questionnaires with the home care teams and technical management unit of Hospital Jobs. The information were treatment trough categories that analyzed to implemented actions and program objectives. The results show that: the practices carried out by the host teams produce the humanization of care by seeking to ensure access to health services and solving human form; networks of health care are not yet finalized hindering the referral of patients to other units, the networks allow support from other institutions to minimize the problems encountered, the management unit vacancies allows the reduction of costs, mainly by regulating beds and record of health initiatives in home care assists in the monitoring and evaluation process of the Services Home Care / Programa Melhor em Casa primarily the epidemiological profile and patients individual treatment plan. Concludes that most of the actions implemented by the Hospital contribute to the effectiveness of the goals of Programa Melhor em Casa

Perspectivados cirurgiões-dentistas sobre a inserção da fisioterapia na atenção básica de saúde

This work aims at investigating the surgeons-dentists acceptability in the field of public health in the city of Natal, State of Rio Grande do Norte, about the possibility of medicinal plants insertion in basic attencion of health. Moreover, it searchs to know if during their professinal formation it had some theoretician-pratical basement on this subject, as well as investigating their confidence on the medicinal plants. The basic motivation for developing this study is the possibility of contributing to the insertion of a tradicional health pratical at public assistance scope, endorsed by popular use, but now scientifically proven. For in a such way, the medicinal plants use is emphasized as a way to be followed to increase basic pharmaceutical assistance, improving the acess to the medicine and diminish expenses. Following this logic, family health program constitutes the way through which this pratical will be available to the users of health services. The research was done over thirty surgeonsdentists, all ofthem pertaining to public service ofNatal, state ofRio Grande do Norte. It was used, as research instrument, semi-estructured interview associated with methodological analysis user s speeches. On this form, this work is inserted in a trend observed nowadays not only in Brazil, where the use of the medicinal plants has been stimulated and defended to be inserted at programs ofprimary attenction of health

A produção das perdas dentárias: narrativas de usuários do SUS

For a complete comprehension of the effect of tooth loss is necessary to listen to the patients that have it. This study, of qualitative approach, investigate, in the dental history of users of SUS, listening to his/her experiences with the services of dental care, the reason that lead his/her to dental lost and the repercussion of this in his/her life. The collect of data was made by narrative interview, obeying to a pre-defined schema. The subjects interviewed were six (three of urban zone and three of rural zone), all of them were users of Family Health Units. The criterions of inclusion were the followings: the presence of tooth lost (total lost in both dental arch or in one of them, or partial lost in at least six elements in one of the arches); age between 25 and 59; male or female; to live in municipal district of São Tomé/RN or Natal/RN. Based on previous interviews was elaborated the odontological history of each patient. Such narratives, systemized in odontological history, were analyzed taking as base the studies of Souza71 and the proposal of Schutze, suggested for Jovchelovitch, Bauer34. The results show that toothache was the main reason for the search of odontological care. The patients confront the ache with home-made medicaments, allopathic ones, and searching for dental care. The searching for exodontics was stimulated for geographic access difficulties or for repressed demand, which as a result produced the aggravation of the lesions and the discredit in restoration s treatment. The self-care practice of tooth-brush with juá or toothpaste and the controlled ingestion of sugar was not sufficient to avoid dental lost. Guilty sentiments were identified in relation with lack of care with teeth. The acceptance of dental lost as a natural factor is an important motivation in lack of pain and in the belief that it was a simple part of life in old age. Life with dental prosthesis makes clear the difference between which was natural and which was unnatural, and difficulties with the prosthesis appeared. The limitation of the prosthesis in its functional aspect can be compensated by esthetic restitution, making possible smiling expression. Starting with this study and considering the high number of dental lost, mainly in low-rent population, which live with toothless limitations or bad-quality prosthesis which do not rehabilitate adequately, we suggested the realization of qualitative researches which include, also, another actors in heath care services such as professionals and administrators

A educação permanente em saúde na ótica dos cirurgiões dentistas

This study aimed to examine the perception of dentist-surgeon about the Permanent Education in Health (PEH). It is characterized as a qualitative research with focus in the field of public health policies. It refers specifically to the development of Permanent Education policy in Health in the state of Rio Grande do Norte. They were participants of this research 42 dentist surgeons and 83.3% females and 16.7% males, participants in Specialization courses approved and agreed by the Permanent Education Center in Health (PEC-RN) in the period 2005 to 2007. These professionals are part of the Family Health Strategy (FHS), and 11.9% work in management at the central level and 88.1% are directly related to oral health care in the Basic Health Units of the Family, 30 cities in the state. Data collection was through a questionnaire, with questions that guided the research development and achieve the objectives proposed. The socio-demographic data were analyzed using the descriptive statistics and subjective content was subjected to content analysis by Bardin. The emerging categories from the textual material generated by respondents were: program content, methodological approach and concepts of Permanent Education in Health. The subjects surveyed reported that the program content is more comprehensive and directs to the reflection of everyday practices, with regard to the methodological approach, concern that occurs through discussion and reflection with dynamic, participative, varied and constructive activities, questioning and putting as the main focus. As for understanding of the concepts of the PEH, there was a consensus that define as education stable strategies which contributing to transform and improve the health workers to have the upgrade, improvement of practices, being based on everyday experience and taking into account the accumulation and renewal of these experiences. Therefore, results presented showed that there is a clear understanding of the subjects on the proposals and guidelines of the PEH. It was concluded that lack continuous access to the policies proposed by Ministry of Health involving health workers, managers, communities, through social control and the teaching-service integration and that they are worked within the health system and can classify all these segments of society favor the existence of a more participatory, effective, fair and better quality health service

Satisfaçã dos Usuários e a qualidade da atenção primária à saúde no Rio Grande do Norte

O presente estudo tem por objetivo avaliar a satisfação dos usuários em relação à qualidade da Atenção Primária à Saúde no Rio Grande do Norte. Trata-se de Pesquisa Avaliativa observacional transversal, com abordagem quantitativa, a qual faz parte da Avaliação Externa do Programa de Melhoria do Acesso e da Qualidade da Atenção Básica (PMAQ), da Universidade Federal do Rio Grande do Norte. Foram utilizados dados secundários de todas as entrevistas com usuários das equipes que participaram da Avaliação Externa do PMAQ no Estado do RN. A pesquisa foi realizada em 167 municípios do Estado do Rio Grande do Norte, na qual a população foi composta por 1.650 usuários. A amostra se deu por conveniência a partir dos seguintes critérios: usuários que estavam presentes na Unidade Básica de Saúde (UBS) para realizar qualquer tipo de procedimento e que consentisse em participar da avaliação. Foram excluídos os que tinham ido pela primeira vez na unidade e aqueles que não frequentaram há mais de 12 meses. A coleta dos dados foi realizada no período de setembro a novembro de 2013. Para tanto, foi elaborado um protocolo de pesquisa contendo as seguintes dimensões: organizacional, interpessoal e estrutural. Em relação à dimensão organizacional os resultados mostram que a marcação de consultas tem se configurado em empecilho ao acesso do usuário ao serviço de saúde, uma vez que se faz necessário para o atendimento, enfrentar filas, antes da abertura da unidade para pegar fichas. No tocante ao funcionamento da unidade, se destaca o fato dos usuários referirem que o horário de funcionamento da unidade atende à suas necessidades, apesar de funcionar 5 (cinco) dias por semana, a maioria das unidades permanece fechada no horário de almoço. Outro dado importante refere-se à coordenação do cuidado, cujos resultados apresentam diferenças maiores entre os usuários da região metropolitana e do interior do Estado em relação à Capital. Essa diferença se expressa principalmente em relação de marcação de consulta com outros profissionais especialistas. A dimensão interpessoal, no que diz respeito à categorias interação usuário-serviço-equipe e vínculo, demonstraram alguns avanços, contudo os melhores resultados foram observados em relação a satisfação com o cuidado, onde mais de 50% dos usuários se mostraram satisfeitos com o cuidado recebido nas unidades. Em contrapartida, o estudo mostrou que, na opinião de 56% dos usuários da capital, a falta de materiais e equipamentos influencia negativamente no cuidado. Por fim, o estudo contribuiu para reforçar a ideia de que a avaliação da satisfação dos usuários dos serviços de saúde pode ser uma ferramenta importante para subsidiar o processo de decisão compartilhada, de forma a se repensar as práticas profissionais, reorganizar o processo de trabalho desenvolvido, realocar recursos, readequar ações e redefinir objetivos que estejam coerentes com o projeto de saúde estabelecido

Promoção da alimentação saudável na atenção primária à saúde: contribuição para construção coletiva do saber-fazer

The recognition of the food as determinant and health-disease process etching requires new explanations and interventions of the food and nutrition policy action and demand health care model based on the completeness of the actions and focused on health promotion. This study, characterized as research-action of interventionist character, sought to develop strategies to support the transverse insertion of healthy eating promotion in professionals practices a core of support for the health of the family and a family health strategy Unit in the city of Natal, capital of Rio Grande do Norte, from the analysis of perceptions and work processes of these teams. Several methodological strategies were adopted: Dialectical Hermeneutical Circle, direct observation, reflective and Thematic Meetings Workshop "Rethinking the educational practices for promoting healthy eating". For data logging, search diaries - SD were used and moments. The analysis of procedural form occurred in conjunction with research participants, in constant movement of reflection-action-reflection, based on hermeneutics-dialectic. About the results, in relation to the promotion of health, showed the following insights: health promotion and disease prevention-related harms; health promotion related to quality of life and well-being, in its various dimensions; health promotion as a responsibility of the State; health promotion related to the actions of health education; health promotion as an expression of efficaciousness and accessibility to health services. Regarding healthy nutrition, predominated the perceptions relating to nutritional aspects. With regard to food and nutritional education - FNE, it was observed a predominance of perception of FNE as information, guidance and knowledge transfer for changes of dietary practices. As regards the working process, it was observed that among the actions for health promotion, educational activities predominate, such as lectures, conversations, groups that mostly occur in fragmentary form, without joint planning teams, varying according to the professionals and the moment of work in which they are carried out. The results pointed to the need for reorganization of the work processes, in the context of intra-and intersectoral coordination and the construction of new technologies, such as: Health project of the territory – HPT, Unique Therapeutic Project- UPT, Expanded Clinic and educational practices, Shared with active teaching and learning methodologies. From the results we believe that it is necessary to "thought reform", from changes in vocational training and strengthening of the permanent education spaces, whereas the complexity that involves feeding, food and nutrition education and health promotion. The reformation of thought must be articulate and closely tied to the production of knowledge and practices that encourage intersectoral approach, the transversality, dialogue and democratic and supportive attitude, based on the collective construction of know-how. We hope that this study can contribute with reflections and initiatives that encourage building practices that promote healthy eating in primary health care, in terms of completeness of the care and the attainment of food security and nutrition.