Abstract The use of wood is often indicated as a decarbonization strategy for the construction sector. However, the CO 2 footprint of native wood, that is, the emissions during wood harvesting, transportation, and processing, depends on the type of forest management practiced. This study quantifies the CO 2 footprint of native rough sawn lumber from forests with three types of harvesting: sustainable management, conventional management, and conventional selective extraction (deforestation). CO 2 emissions were analyzed from harvesting to the end of wood processing based on data from the literature and the Construction Environmental Performance Information System. The CO 2 footprint of rough sawn lumber varies between 25 and 19,860 kCO 2 /m 3 , with the lowest values for wood from sustainable management and the highest for conventional selective extraction. In addition, managed wood stores temporarily in its cell structure ~353kgC/m 3 . Native wood from sustainable harvesting can contribute to decarbonizing buildings, whereas wood from conventional harvesting and deforestation are relevant sources of CO 2 emissions, considering the wood life cycle. sector However transportation practiced deforestation. (deforestation) System 19860 19 860 19,86 m addition 353kgCm kgCm 353kgC kgC buildings cycle (deforestation 1986 1 86 19,8 198 8 19,

Resmo O uso da madeira é frequentemente apontado como uma estratégia de descarbonização para a construção. Entretanto, a pegada de CO2 da madeira nativa, ou seja, que são as emissões decorrentes da sua exploração florestal, transporte e beneficiamento, depende do tipo de manejo florestal. Este estudo quantifica a pegada de CO2 da madeira nativa serrada bruta, proveniente de três tipos de exploração florestal: manejo sustentável, manejo convencional e extração seletiva convencional (desmatamento). Analisaram-se as emissões de CO2 da exploração florestal até o término do beneficiamento da madeira, com dados da literatura e do Sistema de Informação do Desempenho Ambiental da Construção. A pegada de CO2 da madeira serrada bruta varia entre 25 e 19.860 kgCO2/m3, com os menores valores para a madeira de manejo sustentável e os maiores para a madeira de extração seletiva convencional. Além disso, a madeira manejada estoca temporariamente, em sua estrutura celular, ~353 kgC/m3. Madeiras nativas de manejo florestal sustentável podem contribuir com a descarbonização dos edifícios, enquanto as madeiras de manejo convencional e, sobretudo, de desmatamentosão fontes expressivas de CO2 dentro do seu ciclo de vida. construção Entretanto CO seja desmatamento. desmatamento . (desmatamento) Analisaramse Analisaram se Construção 2 19860 19 860 19.86 kgCO2m3 kgCOm kgCO2 m3 kgCO m kgCO2/m3 disso temporariamente celular 353 ~35 kgCm3 kgCm kgC kgC/m3 edifícios sobretudo vida (desmatamento 1986 1 86 19.8 kgCO2m kgCO2/m 35 ~3 kgC/m 198 8 19. 3 ~

ABSTRACT Objectives: To analyze brain death (BD) notifications received by Central de Transplantes (CET) in the state of Roraima (RR) from 2017 to 2021. Methods: This is a cross-sectional, quantitative, and observational study, where all notifications received by CET from 2017 to 2021 were analyzed, resulting in 120 patients from health the following centers: Hospital Geral de Roraima (HGR), Hospital Confederação Nacional das Cooperativas Médicas (UNIMED), Hospital da Criança Santo Antônio (HCSA), Hospital das Clínicas (HC), and Hospital Lotty Íris (HLI). The data were collected from the center’s data management system and passed on to the collection form developed by the researcher. Results: This study analyzed 119 notifications after excluding one due to conflicting data. There was a predominance of males (58%), with traumatic brain injury being the most frequent cause of BD. Six organ harvestings were carried out, all at the HGR. This study found no significant associations between organ procurement and sex, age, place of hospitalization, and year. Conclusion: There are considerable challenges concerning organ donation in RR, with a low uptake rate over five years. Only the HGR successfully carried out organ harvesting, while other reporting hospitals were unsuccessful. Improvements are needed, highlighting the importance of more studies for a more in-depth data analysis. Objectives BD (BD (CET RR (RR 201 Methods crosssectional, crosssectional cross sectional, sectional cross-sectional quantitative 202 12 centers HGR, , (HGR) UNIMED, UNIMED (UNIMED) HCSA, HCSA (HCSA) HC, HC (HC) HLI. HLI . (HLI) center s researcher Results 11 58%, 58 58% (58%) sex age hospitalization year Conclusion years harvesting unsuccessful needed indepth depth analysis 20 1 (HGR (UNIMED (HCSA (HC (HLI 5 (58% 2 (58 (5 (

RESUMO Objetivos: Analisar as notificações de morte encefálica (ME) recebidas pela Central de Transplantes (CET) do estado de Roraima (RR) de 2017 a 2021. Métodos: Trata-se de estudo transversal, quantitativo e observacional no qual foram analisadas todas as notificações recebidas pela CET no período de 2017 a 2021, resultando em 120 pacientes, dos seguintes centros de saúde: Hospital Geral de Roraima (HGR), Hospital Confederação Nacional das Cooperativas Médicas (UNIMED), Hospital da Criança Santo Antônio (HCSA), Hospital das Clínicas (HC) e Hospital Lotty Íris (HLI). Os dados foram coletados do sistema de gerenciamento de dados da central e repassados para a ficha de coleta desenvolvida pela pesquisadora. Resultados: Este estudo analisou 119 notificações após a exclusão de uma devido a dados conflitantes. Houve predominância do sexo masculino (58%), com trauma cranioencefálico sendo a causa mais frequente de ME. Ao todo, foram realizadas seis captações de órgãos, todas no HGR. Este estudo não encontrou associações significativas entre a captação de órgãos e sexo, idade, local de internação e ano. Conclusão: Há grandes desafios em relação à doação de órgãos em RR, com uma taxa de captação baixa ao longo de 5 anos. Apenas o HGR obteve sucesso em realizar captações de órgãos, diferentemente de outros hospitais notificadores. São necessárias melhorias, destacando a importância de se realizarem mais estudos para uma análise mais aprofundada dos dados. Objetivos ME (ME (CET RR (RR 201 2021 Métodos Tratase Trata transversal 12 pacientes saúde HGR, , (HGR) UNIMED, UNIMED (UNIMED) HCSA, HCSA (HCSA) HC (HC HLI. HLI . (HLI) pesquisadora Resultados 11 conflitantes 58%, 58 58% (58%) todo idade ano Conclusão anos notificadores melhorias 20 202 1 (HGR (UNIMED (HCSA (HLI (58% 2 (58 (5 (

Resumen La tendencia en el consumo de alimentos funcionales, con pocas calorías y con propie dades biológicamente activas, ha ido en aumento. El consumo de raíces tuberosas de yacón se adapta a este concepto por los altos niveles de fructooligosacáridos, lo que le confiere propiedades nutracéuticas. Sin embargo, estas propiedades pueden modularse mediante el manejo de la fertilización en el cultivo de esta planta. Así, nuestro estudio tiene como objetivo evaluar diferentes dosis de fertilización potásica en las características fisico químicas de las raíces de yacón. El diseño experimental utilizado fue de bloques al azar, con 4 repeticiones y 5 tratamientos: cuatro dosis de fertilización potásica (50%; 100%; 150%; 200%) del valor de referencia, correspondiente a 178,7 kg.ha-1; 357,4 kg.ha-1; 536,1 kg.ha-1; 714,8 kg.ha-1 de cloruro de potasio - (KCl), y un testigo (suelo sin fertilizar). Las carac terísticas químicas evaluadas fueron pH, acidez total titulable, sólidos solubles, conduc tividad, turbidez, porcentaje de humedad y cenizas. El perfil de textura se elaboró anali zando la tenacidad, la adhesividad, la cohesión, el índice de masticabilidad, la elasticidad y la pegajosidad. La fertilización con potasio mejoró las características químicas (mayores niveles de sólidos solubles y menor acidez) y las características físicas (menor dureza, masticabilidad, cohesión y adherencia) de las raíces tuberosas de yacón, aportando mayor calidad al producto final.

Abstract The already marked tendency for functional food consumption, low in calories, and with biologically active properties, has been increasing. In this scenario, yacon tuberous roots, with high levels of nutraceutical fructooligosaccharides, gain importance. However, these nutraceutical properties depend on fertilization management. Thus, our study aims to evaluate different doses of potassium fertilization on the physicochemical characteristics of yacon roots. The experimental design consisted of randomized blocks, with 4 replications and 5 treatments: four doses of potassium fertilization (50%; 100%; 150%; 200%) of the reference value, corresponding to 178.7 kg.ha-1; 357.4 kg.ha-1; 536.1 kg.ha-1; 714.8 kg.ha-1 of potassium chloride - (KCl), and a control (soil without fertilization). The chemical features evaluated were pH, total titratable acidity, soluble solids, conductivity, turbidity, moisture and ashes. The texture profile was analyzed through toughness, adhesiveness, cohesiveness, chewability index, elasticity, and gooeyness. Most of the variables were influenced by potassium soil fertilization. Only turbidity, conductivity and gumminess showed no response to the applied doses, not fitting the tested models. Potassium fertilization improved both chemical (higher levels of soluble solids and less acidity) and physical characteristics (less hardness, chewability, cohesiveness, and adhesion) of yacon tuberous roots, bringing greater quality to the final product.

Abstract Paper aims Investigate whether the results of time series models can be adjusted with the AHP method towards a more assertive forecast. Originality Considering demand forecasting as a complex decision-making situation, this research investigated the use of the AHP as a complement to traditional forecasting methods. Research method This applied research employed, as main procedures, literature review and mathematical modeling. Main findings Two models were proposed that presented satisfactory results: model I reduced the forecast error by 16% in January, 25% in February, 37% in March, 3% in April, and 7% in May; model II reduced it by 17% in January, 21% in February, 29% in March, 2% in April, and 5% in May. Implications for theory and practice We conclude that the AHP has the potential to correct the results of time series in the textile industry by allowing the incorporation of quantitative and qualitative variables.

Resumo Devido à escassez de maciços cristalinos no norte do Brasil, produtores de concreto têm usado pedra britada e cimento de fornecedores localizados a centenas de quilômetros. Nesse caso, as emissões de CO2 relacionadas ao transporte de materiais na produção de concreto podem ser significativas. Assim, este estudo tem como objetivo analisar a influência do transporte dos materiais nas emissões de CO2 da produção de concreto usinado em Rio Branco (Acre). As composições de concreto foram obtidas de um produtor de concreto local. Os métodos brasileiros de dosagem não foram aplicáveis devido à alta finura da areia regional disponível; os traços foram ajustados empiricamente. Dois tipos de cimento (CP V-ARI e CP IV) foram considerados para criar os cenários estudados. As distâncias de transporte das matérias-primas (cimento e agregados) variaram de 20 km (fornecedor local de areia) a 3.592 km (fornecedor de cimento de Sete Lagoas, MG). As emissões de CO2 para a produção de concreto (fck de 25 MPa, consumo de cimento de 426 kg/m3) variaram de 208 kgCO2/m3 a 573 kgCO2/m3. O transporte foi responsável por até 20% do total de emissões. As emissões neste estudo são consideravelmente maiores do que os dados nacional de produção de concreto disponíveis no Sistema de Informação do Desempenho Ambiental da Construção (Sidac) devido ao maior consumo de cimento e maiores distâncias de transporte. Embora o consumo de cimento no Acre represente menos de 1% do consumo brasileiro, os resultados revelam o impacto das distâncias de transporte nas emissões de CO2 do concreto em cidades que lidam com a escassez local.

Abstract Due to the scarcity of crystalline massifs in the north of Brazil, concrete producers have been using crushed stone and cement from suppliers located hundreds of kilometers away. In this case, CO2 emissions related to material transportation for concrete production may become significant. Thus, this study aims to analyze the influence of the transportation of the materials in CO2 emissions of ready-mix concrete production in Rio Branco (Acre). Concrete compositions were obtained from a local concrete producer. Brazilian methods of dosage were not applicable due to the high fineness of the regional sand available; the mix designs were adjusted empirically. Two types of cement (CP V-ARI and CP IV) were considered to create the studied scenarios. Transportation distances of the raw materials (cement and aggregates) ranged from 20 km (local sand supplier) to 3,592 km (cement supplier from Sete Lagoas, MG). CO2 emissions to produce concrete (fck of 25 MPa, cement consumption of 426 kg/m3) ranged from 208 kgCO2/m3 to 573 kgCO2/m3. Transportation was responsible for up to 20% of total emissions. The emissions in this study are considerably higher than the national data of concrete production available in the Construction Environmental Performance Information System (Sidac) due to the higher cement consumption and higher transportation distances. Although cement consumption in Acre represents less than 1% of Brazilian consumption, the results reveal the impact of transportation distances in CO2 emissions of concrete in cities that deal with local scarcity.

ABSTRACT The present study aimed to estimate genetic parameters of 20 common bean genotypes, commercial and regional bean on weed interference. The agronomic characters analyzed were: average stem diameter (ASD); average plant length (APL); number of pods per pot (NPP); number of locules per pod (NLP); number of grains per pod (NGP); percentage of empty locules (% EL); total grains per pot (TGP); total grain weight per pot (TGW) and average grain weight (AGW). High heritability values were found for most of the characters studied, except for NGP and EL; in addition to great genetic variability among genotypes. Therefore, for most of the characteristics of agronomic interest studied, simple selection methods can be applied with great potential to identify superior genotypes and consequent genetic progress in common bean breeding.

RESUMO Considerado fonte de proteína mais acessível à população, o feijão-comum é consumido diariamente, principalmente nos países em desenvolvimento, das regiões tropicais e subtropicais do planeta. Estudos que utilizam tanto descritores morfológicos quanto marcadores moleculares, vêm sendo utilizados em programas de melhoramento vegetal do feijoeiro. O presente artigo tem por objetivo reportar o estudo da diversidade de linhagens endogâmicas recombinantes e seus genitores utilizando descritores morfológicos e marcadores SSR. Foram avaliadas 22 linhagens recombinantes derivadas dos genitores BRS Agreste e a linhagem preto-01. Para a caracterização foram utilizados 18 marcadores microssatélites e os seguintes descritores morfológicos: presença de antocianina, número de dias após a germinação, dias para floração, cor da asa, cor do estandarte, cor da semente, cor do tegumento, brilho da semente, grupo comercial. Para caracterização molecular foram usados sete marcadores que apresentaram polimorfismo. Os valores de dissimilaridade, utilizando-se os dados morfológicos, variaram de 0 a 8.5; organizando as linhagens em três grupos distintos. Nas análises moleculares, dos 18 primers testados, 11 foram monomórficos e 7 apresentaram-se polimorfismo. Os valores de dissimilaridade para análise molecular variarando de 0 a 0.8; com média de 0.57. Além de informativos, esses marcadores estão associados a características importantes para o feijoeiro. A análise conjunta dos dados apresentou valores de dissimilaridade variando de 0.0 a 12.5, com média de 6.89, formando três grupos. A análise conjunta dos dados morfológicos e moleculares foi eficiente em caracterizar e distinguir as linhagens endogâmicas. Os marcadores moleculares utilizados mostraram-se adequados para o estudo realizado neste trabalho. As linhagens 18 e 19 podem ser consideradas duplicadas, pois na análise de diversidade obteve dissimilaridade zero.

ABSTRACT Considred a more accessible protein source for the population, common beans are consumed daily, mainly in developing countries, in the tropical and subtropical regions of the planet. Studies that use both morphological descriptors and molecular markers have been used in plant breeding programs for common beans. This article aims to report the study of the diversity of recombinant inbred lines and their parents using morphologial descriptors and SSR markers. 22 recombinant inbreeding lines were evaluated derived from the BRS Agreste parents and the black-01 line.For the characterization, 18 microsatellite markers and the following morphological descriptors were used: presence of anthocyanin, number of days after germination, days for flowering, wing color, standard color, seed color, tegument color, seed brightness, commercial group. For molecular characterization, seven markers were used that presented polymorphism The dissimilarity values, using morphological data, ranged from 0 to 8.5; organizing the lineages into three distinct groups. In the molecular analyzes, of the 18 primers tested, 11 were monomorphic and 7 presented polymorphism. The dissimilarity values for molecular analysis ranged from 0 to 0.8; with an average of 0.57. In addition to being informative, these markers are associated with important characteristics for common beans. Joint analysis of the data presented dissimilarity values ranging from 0.0 to 12.5, with an average of 6.89, forming three groups. The joint analysis of morphological and molecular data was efficient to characterize and distinguish inbred lines. The molecular markers used were suitable to the present study. The lines 18 and 19 can be considered duplicate because in all analyzes they remained together.

RESUMO JUSTIFICATIVA E OBJETIVOS: Entende-se que diante da crescente incidência no diagnóstico de câncer, deve-se intensificar a qualidade da assistência oferecida a esses pacientes, com o intuito de melhorar a qualidade de vida e amenizar o sofrimento dos pacientes e dos familiares. A assistência de enfermagem deve ser aprimorada e focada na avaliação da dor do paciente oncológico, para facilitar a caracterização da dor e, consequentemente, melhorar o tratamento multiprofissional. O objetivo deste estudo foi caracterizar a dor dos pacientes onco-hematológicos e associar com a analgesia ofertada. MÉTODOS: Estudo descritivo, prospectivo, longitudinal, desenvolvido com 20 pacientes que apresentaram diagnóstico de doença onco-hematológica e que estivesse internado na unidade de hematologia do Hospital Universitário Walter Cantídeo. Foram aplicadas as escalas analógicas visual e numérica da dor, multidimensional de avaliação de dor e o questionário de McGill. RESULTADOS: A principal causa de dor foi por infecção intestinal. Prevaleceu a dor aguda e que durava o dia todo. Pela escala multidimensional de avaliação de dor o descritor agudo mais relatado foi profundo e do crônico persistente. A palavra mais citada no McGill foi insuportável, com a categoria avaliativa sendo a mais utilizada. Na avaliação da analgesia, percebeu-se que 13 das 20 prescrições médicas estavam incompatíveis com as recomendações da Organização Mundial da Saúde. CONCLUSÃO: As escalas são de extrema importância na mensuração e caracterização da dor. A enfermagem deve estar à frente na sua implantação e utilização nas unidades hospitalares, de maneira especial nas oncológicas pela alta incidência desse sintoma.

ABSTRACT BACKGROUND AND OBJECTIVES: It is understood that in light of the increasing number of cancer diagnoses, one should intensify the quality of assistance offered to those patients, aiming at improving quality of life and minimizing suffering of patients and their relatives. Nursing assistance should be enhanced and focused on cancer patients' pain evaluation, to help pain characterization and, as a consequence, to improve multiprofessional assistance. This study aimed at characterizing onco-hematologic patients' pain and at associating it to offered analgesia. METHODS: This is a descriptive, prospective and longitudinal study developed with 20 patients with onco-hematologic disease admitted to the hematology unit, Hospital Universitário Walter Cantídeo. Visual analog scale and pain numerical scale were applied, in addition to multidimensional pain evaluation scale and McGil questionnaire. RESULTS: Primary cause of pain was intestinal infection. Acute pain lasting the whole day has prevailed. According to multidimensional pain evaluation scale, most commonly reported acute descriptor was deep, and of chronic persistent. Most commonly mentioned word of McGill questionnaire was unbearable, being the evaluative category the most commonly used. When evaluating analgesia, it was noted that 12 out of 20 medical prescriptions were incompatible with World Health Organization recommendations. CONCLUSION: Scales are extremely important to measure and characterize pain. The nursing team should be at the front for its implementation and use in hospital units, especially in cancer units due to the high incidence of this symptom.

The isolation of Cryptococcosis agents from environmental samples may be difficult due to the presence of groups of fast-growing fungi. We propose a new culture medium based on a modification of Dichloran Rose-Bengal Chloramphenicol Medium (DRBCm) to detect colonies of Cryptococcus neoformans. Our results indicate that DRBCm is superior to the classical Bird Seed Agar in its ability to detect colonies of C. neoformans.

The aim of this study was to evaluate in vitro and in vivo the effects of 2 brands of probiotic fermented milk on biofilms, oral microbiota, and enamel. For the in situ experiment, ten volunteers wore palatine devices containing four blocks of bovine dental enamel over 3 phases, during which 20% sucrose solution, Yakult® (Treatment A), and Batavito® (Treatment B) were dropped on the enamel blocks. Salivary microbial counts were obtained and biofilm samples were analyzed after each phase. For the in vivo experiment, the same ten volunteers drunk Yakult® (Treatment C) and Batavito® (Treatment D) in two phases. Saliva samples were collected for microbial analysis after each phase. The in situ study showed that in comparison with Treatment A, Treatment B resulted in fewer total cultivable anaerobes and facultative microorganisms in biofilms, higher final microhardness, lower percentage change in surface hardness, and smaller integrated subsurface enamel hardness. In the in vivo study, Treatment D resulted in a reduction in the counts of all microorganisms. The results suggested that the probiotic fermented milk Batavito®, but not Yakult®, reduced the amount of oral microorganisms and mineral loss in bovine enamel.

Esta pesquisa de abordagem qualitativa tem por objetivo estabelecer a trajetória de mulheres em situação de violência de gênero na cidade de Porto Alegre, Rio Grande do Sul, Brasil. A metodologia incluiu entrevistas em profundidade com mulheres e operadores sociais, procurando mapear a rota crítica das mulheres quando decidem procurar ajuda. Foram entrevistadas 21 mulheres em situação de violência e 25 operadores das áreas jurídica, policial, ação social, saúde e organizações não governamentais. A rota percorrida pelas mulheres nos serviços foi mapeada e analisada, sendo identificados aspectos facilitadores e limitadores no processo de romper com a violência. As mulheres relataram a pressão dos operadores para que retornem ao casamento e a ineficiência do setor policial para dar-lhes proteção. Nos depoimentos dos operadores, perceberam-se as diferentes concepções de violência entre os serviços, a medicalização da violência e a fragmentação da rede.

This qualitative study aims to describe the trajectories of female victims of gender violence in Porto Alegre, Rio Grande do Sul State, Brazil. The methodology included in-depth interviews with women and staff, attempting to map the critical paths of women when they made the decision to seek professional help. We interviewed 21 women victims of gender violence and 25 professionals, including law enforcement officials, health and social workers, and nongovernmental organizations. The women's trajectories in the services were mapped, identifying facilitating factors and obstacles in the process of breaking with gender violence. The victims reported: pressure by professional staff to return to their marriages and police inefficiency in providing protection. The discourse of law enforcement officials and health and social workers showed a range of different concepts regarding violence, medicalization of violence, and network fragmentation.

Esta pesquisa de abordagem qualitativa tem por objetivo estabelecer a trajetória de mulheres em situação de violência de gênero na cidade de Porto Alegre, Rio Grande do Sul, Brasil. A metodologia incluiu entrevistas em profundidade com mulheres e operadores sociais, procurando mapear a rota crítica das mulheres quando decidem procurar ajuda. Foram entrevistadas 21 mulheres em situação de violência e 25 operadores das áreas jurídica, policial, ação social, saúde e organizações não governamentais. A rota percorrida pelas mulheres nos serviços foi mapeada e analisada, sendo identificados aspectos facilitadores e limitadores no processo de romper com a violência. As mulheres relataram a pressão dos operadores para que retornem ao casamento e a ineficiência do setor policial para dar-lhes proteção. Nos depoimentos dos operadores, perceberam-se as diferentes concepções de violência entre os serviços, a medicalização da violência e a fragmentação da rede.

This qualitative study aims to describe the trajectories of female victims of gender violence in Porto Alegre, Rio Grande do Sul State, Brazil. The methodology included in-depth interviews with women and staff, attempting to map the critical paths of women when they made the decision to seek professional help. We interviewed 21 women victims of gender violence and 25 professionals, including law enforcement officials, health and social workers, and nongovernmental organizations. The women's trajectories in the services were mapped, identifying facilitating factors and obstacles in the process of breaking with gender violence. The victims reported: pressure by professional staff to return to their marriages and police inefficiency in providing protection. The discourse of law enforcement officials and health and social workers showed a range of different concepts regarding violence, medicalization of violence, and network fragmentation.

Optimization problems often involve situations in which the user's goal is to minimize and/or maximize not a single objective function, but several, usually conflicting, functions simultaneously. Such situations are formulated as multiobjective optimization problems, also known as multicriteria, multiperformance or vector optimizations. Because multiobjective optimization problems arise in different scientific applications, many researches have focused on developing methods for their solution. Thus, there are several criteria that can be considered to solve such complex optimizations. This paper contributes to the study of optimization problems, by comparing some of these methods. The classical method, based on function scalarization, in which a vector function is transformed into a scalar function, is represented here by the weighted objectives and global criterion methods. A different approach involves hierarchical, trade-off and goal programming, which treats the objective functions as additional constraints. Some multicriteria optimization problems are given to illustrate each methodology studied here. The techniques are initially applied to an environmentally friendly and economically feasible electric power distribution problem. The second application involves a dynamics optimization problem aimed at optimizing the first three natural frequencies.