Self-medication consultations in community pharmacy: an exploratory study on teams' performance, client-reported outcomes and satisfaction

BACKGROUND: Community pharmacy teams (CPTs) have an established role in assisting self-medication, contributing to the safe and effective use of non-prescription medicines. OBJECTIVE: The study aimed to describe CPTs' performance in self-medication consultation, client-reported outcomes, and satisfaction. A secondary purpose was to develop an explanatory model for better understanding clients' satisfaction with this service. METHODS: Descriptive, cross-sectional exploratory study. Data were collected in a purposive sample of pharmacy clients recruited in six community pharmacies in Portugal. CPTs adopted a structured approach to self-medication consultations, encompassing 11 quality criteria (five for case evaluation and six for counselling). An evaluation score, a counselling score and an overall quality score were estimated. Client-reported outcomes and satisfaction were ascertained via a follow-up telephone interview. Besides descriptive statistics, the association with several independent variables on the clients' overall satisfaction was explored, using linear regression. RESULTS: Product-based dispensing was more frequent for lower educated clients. Reported compliance with the criteria by CPTs was overall high (93.95% of maximum compliance), mostly missing the 'other medication' questioning. Most clients (93%) reported improvement after the consultation. Clients' satisfaction score was 4.70 out of 5. The variables that seem to better explain clients' overall satisfaction are pharmacy loyalty, the evaluation score, and the female gender. CONCLUSIONS: Clients' reported outcomes were favourable, as well as satisfaction with the service. Clients' satisfaction appears to be determined by consultation quality (evaluation score), suggesting the advancement of the pharmacists' clinical role. A larger study is warranted to confirm these findings

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Self-medication consultations in community pharmacy: an exploratory study on teams' performance, client-reported outcomes and satisfaction.

BACKGROUND: Community pharmacy teams (CPTs) have an established role in assisting self-medication, contributing to the safe and effective use of non-prescription medicines. OBJECTIVE: The study aimed to describe CPTs' performance in self-medication consultation, client-reported outcomes, and satisfaction. A secondary purpose was to develop an explanatory model for better understanding clients' satisfaction with this service. METHODS: Descriptive, cross-sectional exploratory study. Data were collected in a purposive sample of pharmacy clients recruited in six community pharmacies in Portugal. CPTs adopted a structured approach to self-medication consultations, encompassing 11 quality criteria (five for case evaluation and six for counselling). An evaluation score, a counselling score and an overall quality score were estimated. Client-reported outcomes and satisfaction were ascertained via a follow-up telephone interview. Besides descriptive statistics, the association with several independent variables on the clients' overall satisfaction was explored, using linear regression. RESULTS: Product-based dispensing was more frequent for lower educated clients. Reported compliance with the criteria by CPTs was overall high (93.95% of maximum compliance), mostly missing the 'other medication' questioning. Most clients (93%) reported improvement after the consultation. Clients' satisfaction score was 4.70 out of 5. The variables that seem to better explain clients' overall satisfaction are pharmacy loyalty, the evaluation score, and the female gender. CONCLUSIONS: Clients' reported outcomes were favourable, as well as satisfaction with the service. Clients' satisfaction appears to be determined by consultation quality (evaluation score), suggesting the advancement of the pharmacists' clinical role. A larger study is warranted to confirm these findings.

Upgrading from batch to continuous flow process for the pyrolysis of sugarcane bagasse: Structural characterization of the biochars produced.

The waste from agriculture can be used for biochar production by the pyrolysis process. The present work aimed was to produce sugarcane bagasse biochars using different temperatures and processes (batch and pilot-scale continuous flow). The samples were characterized by FTIR, functional group pKa, elemental analysis, zeta potential, Raman spectroscopy, EPR, and SEM. The FTIR spectra showed bands around 1400-1650 cm-1 corresponded to vibrations of CC bonds and pKa revealed the presence of carboxylic acids (pKa ≤5) and lactones (pKa ~5-9). The elemental analyses (H/C ~ 0.31) and Raman spectra (ID/IG ~ 0.55) confirmed greater carbonization and less structural disorder of the material produced using the continuous flow process. SEM images showed that the biochar morphologies were similar to that of the precursor biomass, with the formation of pores. The continuous flow process is a promising technique for the production of biochars with high carbon contents and aromatic structures, as well as lower defect degrees, compared to biochars produced using a batch process.

Relationship of the physicochemical properties of novel ZnO/biochar composites to their efficiencies in the degradation of sulfamethoxazole and methyl orange.

Three different composites were produced, based on zinc oxide and biochar (ZnO/biochar), varying the type of biomass (Salvinia molesta: SM; exhausted husk of black wattle: EH; and sugarcane bagasse: SB), with pyrolysis under mild conditions at 350 and 450 °C. Evaluation was made of the capacities of the composites for photocatalytic degradation of sulfamethoxazole antibiotic (SMX) and methyl orange dye (MO). The properties of the prepared composites were influenced by the biomass source, with larger crystallite size (SB), lower band gap energy (SM), higher specific surface area (SB), and larger pore size (SM) resulting in higher photocatalytic efficiency. Good degradation results were obtained using these innovative photocatalysts prepared at low temperatures, when compared to ZnO/biochar materials reported in previous studies. The best degradation capacities were obtained for the composites produced at 450 °C from SB and SM, with 99.3 and 97% degradation of SMX after 45 min, and 90.8 and 88.3% degradation of MO after 120 min, respectively.

Quality supply of nonprescription medicines in Portuguese community pharmacy: An exploratory case study.

BACKGROUND: Inappropriate use of non-prescription medicines (NPM) can increase morbidity, mortality and health care associated costs. Pharmacists have a well-established role in self-medication; however, the literature shows that pharmacies performance in the supply of NPM is often suboptimal. OBJECTIVE: To explore the interaction and dependability of pharmacy staff use of oral language, as well as staff's own assessment of reasons underlying their behavior during consultation regarding NPM. METHODS: In a case-study design, a high street urban community pharmacy was purposively selected as the setting. Covert patient simulation, using trained simulated patients (SPs), was used to ascertain staff's performance in dispensing NPM, via 4 symptom-based scenarios (SbS) and 3 product-based scenarios (PbS). Performance data were converted into 2 composite indexes: the Interpersonal Performance Index (IPI) and Technical Performance Index (TPI). Audiotaped interactions were transcribed verbatim and participants' utterances were identified, time stamped and coded employing the eight higher level categories of a framework inspired by the Roter interaction analysis system (RIAS). The transcripts of the in-depth interviews were analyzed using the Framework Approach. The tripartite model of attitudes was employed to develop the thematic framework. RESULTS: Ten SP visits were considered for analysis. Overall, the mean TPI score was 50% and the mean IPI score was 78%. TPI was higher for SbS (63%) than PbS (31%), whilst there was little difference IPI between SbS (79%) and PbS (76%). The mean number of questions in the evaluation section of technical performance was 4 for SbS and 1 for PbS. There was a clear predominance of closed questions (32%), when compared with open questions (5.5%). Providing advice was more frequent (23.5%) than giving information (12.5%). In line with the SPs data, comparison of information-gathering in SbS and PbS shows that more questions were asked in the former (44% versus 31%), which resulted in more information given by SPs (56% and 49%, respectively). Staff's reaction to their performance showed all the 3 dimensions of attitude: affective, cognitive and behavioral. Divergence between staff's views on what should be done in NPM consultations and performance data surfaced in the interviewees' accounts on direct product requests. While performance data shows that information gathering was scarce, its importance was overtly acknowledged. CONCLUSIONS: The supply of NPM appears to be influenced by both cognitive and emotional issues. This suggests that multimodal improvement interventions are needed, targeting not only technical and interpersonal communication skills but also the organizational context. Managerial tools such as the balanced scorecard, may prove valuable in addressing improvement in the quality supply of NPM.

Proprioceptive neuromuscular facilitation and strength training to gain muscle strength in elderly women / Facilitação neuromuscular proprioceptiva e musculação para ganho de força muscular em idosas

Introduction: The world population is aging, and this leads to progressive physiological changes and increased incidence of acute and chronic degenerative diseases. In this sense, one of the main changes occurring during this period is sarcopenia, characterized by decreased skeletal muscle mass. Objective: To perform comparative analyze of results of proprioceptive neuromuscular facilitation (PNF) techniques and strength training to gain muscle strength of biceps and quadriceps and grip in the elderly. Method: This is a prospective randomized study with purposive sample of 17 elderly patients undergoing a program of strength training and evaluation with a dynamometer, before and after applying the treatment protocol. After evaluation, subjects were randomly divided into two groups: PNF and Bodybuilding. Results: The group trained with PNF had more significant gain in muscle strength, biceps (p=0.0392*) and quadriceps (p=0.0230*) did not show statistically significant relevance in the grip (p=0.1075). In the group trained with weights there was no statistically significant difference: biceps (p=0.5338), quadriceps femoris (p=0.0679) and palmar (p=0.3758). Comparing both techniques, however, there was no statistical difference: biceps (p=0.5739), quadriceps (p=0.8450) and palmar (p=0.2457). Conclusion: This study showed that the period of 12 weeks of intervention seems to be sufficient to achieve gains in muscle strength with PNF technique, but when comparing the two techniques it was not statistically significant. .

Introdução: A população mundial está envelhecendo, o que acarreta alterações fisiológicas progressivas e aumento da incidência de doenças agudas e crônico-degenerativas. Nesse sentido, uma das principais alterações que ocorre nesse período é a sarcopenia, caracterizada pela diminuição da massa muscular esquelética. Objetivo: Analisar comparativamente os resultados das técnicas de Facilitação Neuromuscular Proprioceptiva (FNP) e musculação para ganho de força dos músculos bíceps braquial e quadríceps femoral e preensão palmar em idosas. Método: Trata-se de estudo prospectivo, randomizado com amostra intencional de 17 idosas submetidas a um programa de treinamento de força e avaliação com dinamômetro, antes e após aplicação do protocolo de tratamento. Após a avaliação, os indivíduos foram divididos aleatoriamente em dois grupos: FNP e Musculação. Resultados: O grupo treinado com FNP apresentou ganho de força mais expressivo no músculo, bíceps braquial (p=0,0392*) e quadríceps femoral (p=0,0230*), não apresentando relevância estatística significante na preensão palmar (p=0,1075). No grupo treinado com musculação, não houve diferenças estatisticamente significantes: bíceps braquial (p=0,5338), quadríceps femoral (p=0,0679) e na preensão palmar (p=0,3758). Na comparação entre as duas técnicas, porém, não foram observadas diferenças estatísticas: bíceps (p=0,5739), quadríceps (p=0,8450) e preensão palmar (p=0,2457). Conclusão: O presente estudo demonstrou que o período de 12 semanas de intervenção parece ser suficiente para conseguir ganhos de força muscular com a técnica ...

Alterações posturais e flexibilidade da cadeia posterior nas lesões em atletas de futebol de campo / Postural alterations and flexibility of the posterior chain in soccer´s injuries / Cambios posturales y flexibilidad de cadena posterior en lesiones en atletas de fútbol

OBJETIVO: Demonstrar se existe relação entre as lesões esportivas com as alterações posturais e a flexibilidade da cadeia posterior. MÉTODOS: Foram avaliados 28 atletas de futebol de campo do sexo masculino, idade entre 17 e 20 anos, divididos em dois grupos: com lesão (G1) e sem lesão (G2). Inicialmente foi verificado peso, idade, tempo de prática e ocorrência de lesões. Em seguida foi realizada avaliação postural para verificar retrações das cadeias musculares e avaliação postural computadorizada. RESULTADOS: Os atletas apresentaram joelhos varo, anteversão pélvica e assimetria no triângulo de Tales. O segmento corpóreo acometido mais frequente foi o tornozelo, seguido de joelhos, virilha e coxas. CONCLUSÕES: Não foi possível estabelecer relação entre as lesões no presente estudo.

PURPOSE: To determine whether a relationship exists between sports injuries with postural changes and flexibility of the posterior chain. METHODS: A total of 28 soccer players in the field of male, aged between 17 and 20 years, divided into two groups: lesion (G1) and without injury (G2). It was initially established weight, age, practice time and occurrence of injuries. Next postural assessment was performed to verify retraction of the muscle and postural assessment computerized. RESULTS: The athletes had knee varus, anterior pelvic tilt and asymmetry in the triangle of Tales. The body segment was the most common ankle, followed by knees, groin and thighs. CONCLUSIONS: Unable to establish the relationship between the lesions in this study.

OBJETIVO: Determinar si existe relación entre las lesiones deportivas con los cambios de postura y la flexibilidad de la cadena posterior. MÉTODOS: Un total de 28 jugadores de fútbol, de edades entre 17 y 20 años, en dos grupos: las lesiones (G1), y sin perjuicio (G2). Se estableció el peso, edad, tiempo de práctica y la aparición de lesiones. Siguiente evaluación postural se realizó para comprobar la retracción de los músculos y la evaluación postural computarizado. RESULTADOS: Los atletas había varo de la rodilla, la inclinación pélvica anterior y la asimetría en el triángulo de cuentos. El segmento del cuerpo era el tobillo más común, seguida por las rodillas, la ingle y los muslos. CONCLUSIONES: No se puede establecer la relación entre las lesiones en este estudio.

A efIcácia dos recursos fIsioterapêuticos no ganho da amplitude de abertura bucal em pacientes com disfunções craniomandibulares / The effectiveness of the physiotherapeutic resources in the gain of the amplitude of bucal opening in patients with craniomandibular dysfunctions

Introdução: A Articulação Temporomandibular (ATM) é um dos componentes do sistema estomatognático e vem sendo estudada por diversas áreas das ciências da saúde. Qualquer alteração em um dos constituintes articulares e musculares da ATM predispõe ao aparecimento das Disfunções Craniomandibulares (DCMs). A DCM caracteriza-se por diversos sinais e sintomas, como a limitação dos movimentos mandibulares, sendo classificada em musculares, articulares e musculoarticulares. A limitação dos movimentos da mandíbula pode estar associada à dor e aos desarranjos internos da ATM. Com isso, a fisioterapia é uma alternativa de tratamento das DCMs, melhorando os sinais e sintomas que as envolvem. Objetivo: Identificar a eficácia dos recursos fisioterapêuticos no ganho da amplitude de abertura bucal em pacientes com DCM, por meio de uma revisão de literatura. Metodologia: Foi realizado um levantamento bibliográfico nas seguintes bases de dados: PUBMED, SciELO, PEDro, HighWire Press e PERIÓDICOS CAPES no período de 1998 a 2008. Além disso, foram utilizados livros atualizados referentes ao tema abordado. Resultado: Dezessete artigos foram analisados, sendo cinco constatando a limitação de abertura bucal; os demais descreveram e sugeriram tratamentos para melhorar a amplitude de abertura bucal em pacientes com DCM. Conclusão: Foi observada melhora na amplitude de abertura da boca em pacientes com DCM, mediante os tratamentos propostos nos artigos revisados.

Introduction: The Temporomandibular joint (TMJ) is one of the components of the stomatognathic system and has been studied by several areas of health sciences. Any change in one of the constituents of the TMJ joint and muscle predisposes to the appearance of Craniomandibular disfunction (CMD). The CMD is characterized for several signs and symptoms, among them the limitation of the mandibular movements, being classified as muscle, to articulate and muscle to articulate. The limitation of movements of the jaw can be associated to the pain and to the internal disorders of the TMJ. With that, the physiotherapy is an alternative of treatment of the CMDs, improving the signs and symptoms that involve them. Objective: To identify the effectiveness of physiotherapy in the gain range of mouth opening in patients with DCM by means of a literature review. Methodology: A survey in the following bibliographic databases: PUBMED, SciELO, PEDro, and HighWire Press PERIODIC CAPES during 1998 to 2008. Furthermore, we used updated books on the subject addressed. Result: Seventeen articles were reviewed, with 5 noting the limitation of mouth opening, the other described and suggested treatments to improve the range of mouth opening in patients with DCM. Conclusion: There was improvement in range of mouth opening in patients with DCM, the treatments offered by the reviewed articles.

A eficácia dos recursos fisioterapêuticos no ganho da amplitude de abertura bucal em pacientes com disfunções craniomandibulares / The effectiveness of the physiotherapeutic resources in the gain of the amplitude of bucal opening in patients with craniomandibular dysfunctions

Introdução: A Articulação Temporomandibular (ATM) é um dos componentes do sistema estomatognático e vem sendo estudada por diversas áreas das ciências da saúde. Qualquer alteração em um dos constituintes articulares e musculares da ATM predispõe ao aparecimento das Disfunções Craniomandibulares (DCMs). A DCM caracteriza-se por diversos sinais e sintomas, como a limitação dos movimentos mandibulares, sendo classificada em musculares, articulares e musculoarticulares. A limitação dos movimentos da mandíbula pode estar associada à dor e aos desarranjos internos da ATM. Com isso, a fisioterapia é uma alternativa de tratamento das DCMs, melhorando os sinais e sintomas que as envolvem. Objetivo: Identificar a eficácia dos recursos fisioterapêuticos no ganho da amplitude de abertura bucal em pacientes com DCM, por meio de uma revisão de literatura. Metodologia: Foi realizado um levantamento bibliográfico nas seguintes bases de dados: PUBMED, SciELO, PEDro, HighWire Press e PERIÓDICOS CAPES no período de 1998 a 2008. Além disso, foram utilizados livros atualizados referentes ao tema abordado. Resultado: Dezessete artigos foram analisados, sendo cinco constatando a limitação de abertura bucal; os demais descreveram e sugeriram tratamentos para melhorar a amplitude de abertura bucal em pacientes com DCM. Conclusão: Foi observada melhora na amplitude de abertura da boca em pacientes com DCM, mediante os tratamentos propostos nos artigos revisados.

Introduction: The Temporomandibular joint (TMJ) is one of the components of the stomatognathic system and has been studied by several areas of health sciences. Any change in one of the constituents of the TMJ joint and muscle predisposes to the appearance of Craniomandibular disfunction (CMD). The CMD is characterized for several signs and symptoms, among them the limitation of the mandibular movements, being classified as muscle, to articulate and muscle to articulate. The limitation of movements of the jaw can be associated to the pain and to the internal disorders of the TMJ. With that, the physiotherapy is an alternative of treatment of the CMDs, improving the signs and symptoms that involve them. Objective: To identify the effectiveness of physiotherapy in the gain range of mouth opening in patients with DCM by means of a literature review. Methodology: A survey in the following bibliographic databases: PUBMED, SciELO, PEDro, and HighWire Press PERIODIC CAPES during 1998 to 2008. Furthermore, we used updated books on the subject addressed. Result: Seventeen articles were reviewed, with 5 noting the limitation of mouth opening, the other described and suggested treatments to improve the range of mouth opening in patients with DCM. Conclusion: There was improvement in range of mouth opening in patients with DCM, the treatments offered by the reviewed articles.

Análise da prevalência dos transtornos psíquicos na região metropolitana do Recife / Analysis of the prevalence of psychic disorders in the metropolitan region of Recife

A saúde mental é um estado de bem-estar em que o indivíduo tem consciência das suas capacidades, é capaz de lidar com o estresse normal da vida, trabalhar produtivamente e contribuir para a sua comunidade. O presente trabalho tem como objetivo analisar quantitativamente a prevalência dos transtornos psíquicos, usando parâmetros referenciais como sexo, idade, tipos de distúrbios e assistência prestada aos portadores. Foi realizada uma abordagem quantitativa através de uma adaptação do questionário Self Reporting Questionnaire (SRQ - 20), em que foram entrevistadas assistentes sociais de três hospitais psiquiátricos da Região Metropolitana do Recife (RMR) - Hospital Psiquiátrico Ulysses Pernambucano, Núcleo de Atenção Psicossocial de Pernambuco (NAPPE) e Hospital Colônia Aucides Codiceira. O resultado mostrou uma maior incidência dos transtornos nas mulheres, entre a faixa etária de 41 - 60 anos, destacando-se a esquizofrenia como o principal tipo de patologia dentre as encontradas. Entre os diversos tratamentos oferecidos, prevalecem as terapias medicamentosas, em grupo e individual, estas apresentando melhor resultado.

Mental health is a state of well-being, in which the individual is aware of its capacities, capable of coping with the ordinary stress of everyday life, of working productively and of functioning in society. The purpose of the present work is a quantitative analysis of the prevalence of psychic disorders, using references such as sex, age, kind of disorder and care delivered to the carriers. Social assistants of three psychiatric hospitals of the Metropolitan Region of Recife - the Psychiatric Hospital Ulysses Pernambucano, the Nucleus for Psychosocial Care of Pernambuco (NAPPE) and the Hospital Colony Alcides Codeceira - answered an adapted version of the Self Reporting Questionnaire (SRQ-20). The results showed a higher incidence of disorders in women in the age group between 41 and 60 years. Schizophrenia was the most frequently observed kind of mental disorder. Among the different treatments offered were drug therapy and individual and group therapy, the latter showing better results.

[Analysis of the prevalence of psychic disorders in the metropolitan region of Recife]. / Análise da prevalência dos transtornos psíquicos na região metropolitana do Recife.

Mental health is a state of well-being, in which the individual is aware of its capacities, capable of coping with the ordinary stress of everyday life, of working productively and of functioning in society. The purpose of the present work is a quantitative analysis of the prevalence of psychic disorders, using references such as sex, age, kind of disorder and care delivered to the carriers. Social assistants of three psychiatric hospitals of the Metropolitan Region of Recife - the Psychiatric Hospital Ulysses Pernambucano, the Nucleus for Psychosocial Care of Pernambuco (NAPPE) and the Hospital Colony Alcides Codeceira - answered an adapted version of the Self Reporting Questionnaire (SRQ-20). The results showed a higher incidence of disorders in women in the age group between 41 and 60 years. Schizophrenia was the most frequently observed kind of mental disorder. Among the different treatments offered were drug therapy and individual and group therapy, the latter showing better results.

Análise eletromiográfica como base para o tratamento das luxações recidivas da patela / Analysis electromyographic as base for the treatment of the dislocations recidia of the patella

A análise dos estudos das respostas eletromiográficas da musculatura que envolve a articulação do joelho juntamente com os procedimentos terapêuticos, pode fornecer ao terapeuta uma gama de informações importantes para o tratamento das luxações recidivas d apatela. Saber que o fortalecimento seletivo do vasto medial pode ser realizado entre 90º e 50ºde flexão do joelho e que os vastos medial e lateral podem ser trabalhados com exercícios de curta duração e alta intensidade são apenas algumas das conclusões a que chegamos. Apresentaremos os resultados obtidos visando principalmente a prevenção precoce da agressão tissular da articulação femoro-patelar, bem como fornecer ao leitor subsídios para construir programas de reabilitação que atuem com recursos bem fundamentdos, evitando e alertando para o problema sério que é a degeneração da articulação femoro-patelar no processo terapêutico

Excitation spectrum and staggering transformations in lattice quantum models.

We consider the energy-momentum excitation spectrum of diverse lattice Hamiltonian operators: the generator of the Markov semigroup of Ginzburg-Landau models with Langevin stochastic dynamics, the Hamiltonian of a scalar quantum field theory, and the Hamiltonian associated with the transfer matrix of a classical ferromagnetic spin system at high temperature. The low-lying spectrum consists of a one-particle state and a two-particle band. The two-particle spectrum is determined using a lattice version of the Bethe-Salpeter equation. In addition to the two-particle band, depending on the lattice dimension and on the attractive or repulsive character of the interaction between the particles of the system, there is, respectively, a bound state below or above the two-particle band. We show how the existence or nonexistence of these bound states can be understood in terms of a nonrelativistic single-particle lattice Schrödinger Hamiltonian with a delta potential. A staggering transformation relates the spectra of the attractive and the repulsive cases.

Energy-momentum spectrum of some two-particle lattice Schrödinger Hamiltonians.

We determine the excitation spectrum of some one and two-particle Z(d) lattice Schrödinger Hamiltonians. They occur as approximate Hamiltonians for the low-lying energy-momentum spectrum of diverse infinite lattice nonlinear quantum systems. A unitary staggering transformation relates the low-energy-momentum spectrum to the high-energy-momentum spectrum of the transformed operators. A feature for the one-particle repulsive delta function Hamiltonian is that, in addition to the continuous band spectrum, there is a bound state above the band, and the repulsive case spectrum and scattering can be obtained from the attractive potential case by staggering. For the two-particle pair potential Hamiltonian, there are commuting self-adjoint energy-momentum operators, and we determine the joint spectrum. For the case of a lambda delta pair potential, and equal particle masses, for arbitrarily small /lambda/, lambda < 0, and d >or = 3, there is no bound state for small system momentum, but a bound state exists below the band if the momentum is large. We find that the binding energy is an increasing function of the system momentum. The existence of this bound state is in contrast with the continuum case, where the Birman-Schwinger bound excludes negative-energy bound states for small couplings; this bound state is absent if the two masses are different. Other spectral results are also obtained for the large coupling case. An eigenfunction expansion that uses products of plane waves in the sum and difference coordinates is used to obtain the spectral results.

Interband spectrum of weakly coupled stochastic lattice Ginzburg-Landau models.

We analyze the excitation spectrum of the generator associated with the relaxation rate to equilibrium in weakly coupled stochastic Ginzburg-Landau models on a spatial lattice Z(d). The spectrum has a quasiparticle interpretation. Depending on d and on the specific interaction, by solving the Bethe-Salpeter equation in the ladder approximation, we show the existence of a stable particle above the upper envelope of the two-particle band, possessing a concave dispersion curve. This result furthers our knowledge about the spectrum of the stochastic dynamics generator.