ABSTRACT
INTRODUCTION: Caregivers of patients with Alzheimer's Disease experience physical and emotional burnout that can be treated with non-pharmacological interventions. AIM: Assess the efficacy of a group cognitive behavioural psychotherapeutic intervention, for improving well-being perception in caregivers, compared to a support group. Also, we assessed its efficacy after a follow-up period of 1-year post-intervention. SUBJECTS AND METHODS: A multicentre, open, quasi experimental study with control group was conducted. 221 caregivers of patients with Alzheimer's Disease, with mild to moderate-severe dementia, were non-randomly assigned to either IG-intervention group: psychotherapeutic program without active follow-up period (n = 80); IGF-intervention group: psychotherapeutic program with active follow-up period (n = 78); or CG-control group: support program with active follow-up period (n = 63). The psychotherapeutic intervention (IG and IGF) is a structured cognitive behavioural group program, of one weekly session over four months. The CG had the same duration. Caregiver's burden, mood disorders, resilience, perceived functional social support and quality of life were measured at baseline, post-intervention and after 1-year follow-up. RESULTS: At post-intervention, statistically significant improvements were observed in the IG and IGF compared to CG in caregiver burden (p = 0,0216). After one year follow-up, significant improvements were found in IGF compared to IG in emotional state (p = 0,0271), resilience (p = 0,0018), perceived social support (p = 0,014); quality of life (p = 0,0001) and mental health (p = 0,0002); and in CG versus GI in emotional state and social support (p < 0,05). CONCLUSIONS: These results support the efficacy of this psychotherapeutic intervention for improving well-being (burden), and the supportive follow-up period for increasing its efficacy.
TITLE: Efectividad de una intervención psicoterapéutica grupal en la mejora del bienestar de personas cuidadoras de un familiar con enfermedad de Alzheimer: estudio CuiDem.Introducción. Las personas cuidadoras de familiares con enfermedad de Alzheimer presentan agotamiento físico y emocional, que puede abordarse con intervención no farmacológica. Objetivo. Evaluar la efectividad de una intervención psicoterapéutica grupal cognitivo-conductual para mejorar la percepción de bienestar de personas cuidadoras, respecto a una intervención de acompañamiento, y su sostenibilidad tras un período de seguimiento activo de un año postintervención. Sujetos y métodos. Estudio multicéntrico, cuasi experimental, abierto y con grupo control. Se asignó de forma no aleatorizada a 221 personas cuidadoras de familiares con enfermedad de Alzheimer, con demencia leve a moderada-grave, a tres condiciones de intervención: grupo de intervención psicoterapéutica sin seguimiento activo (GI) (n = 80); grupo de intervención psicoterapéutica con seguimiento activo (GIS) (n = 78); y grupo control de acompañamiento con seguimiento activo (GC) (n = 63). La intervención psicoterapéutica grupal (GI y GIS) es un programa estructurado, cognitivo-conductual, de una sesión semanal durante cuatro meses. La del GC tenía la misma duración. Se evaluaron preintervención, postintervención y, al año, sobrecarga percibida, estado de ánimo, resiliencia, apoyo social funcional y calidad de vida. Resultados. Se observó una mejora significativa postintervención en el GI y el GIS respecto al GC en percepción de sobrecarga (p = 0,0216). Al año de seguimiento, se observaron mejoras significativas en el GIS respecto al GI en estado de ánimo (p = 0,0271), resiliencia (p = 0,0018), apoyo social percibido (p = 0,014), calidad de vida (p = 0,0001) y salud mental (p = 0,0002); y en el GC frente al GI en estado de ánimo y apoyo social (p menor de 0,05). Conclusiones. Los resultados respaldan la efectividad de esta intervención psicoterapéutica para mejorar la percepción de bienestar (sobrecarga) y el seguimiento de apoyo para incrementar su eficacia.
Subject(s)
Alzheimer Disease , Caregivers , Alzheimer Disease/psychology , Alzheimer Disease/therapy , Caregivers/psychology , Humans , Quality of Life , Social SupportABSTRACT
Introducción: Las personas cuidadoras de familiares con enfermedad de Alzheimer presentan agotamiento físico y emocional, que puede abordarse con intervención no farmacológica. Objetivo: Evaluar la efectividad de una intervención psicoterapéutica grupal cognitivo-conductual para mejorar la percepción de bienestar de personas cuidadoras, respecto a una intervención de acompañamiento, y su sostenibilidad tras un período de seguimiento activo de un año postintervención. Sujetos y métodos: Estudio multicéntrico, cuasi experimental, abierto y con grupo control. Se asignó de forma no aleatorizada a 221 personas cuidadoras de familiares con enfermedad de Alzheimer, con demencia leve a moderada-grave, a tres condiciones de intervención: grupo de intervención psicoterapéutica sin seguimiento activo (GI) (n = 80); grupo de intervención psicoterapéutica con seguimiento activo (GIS) (n = 78); y grupo control de acompañamiento con seguimiento activo (GC) (n = 63). La intervención psicoterapéutica grupal (GI y GIS) es un programa estructurado, cognitivo-conductual, de una sesión semanal durante cuatro meses. La del GC tenía la misma duración. Se evaluaron preintervención, postintervención y, al año, sobrecarga percibida, estado de ánimo, resiliencia, apoyo social funcional y calidad de vida. Resultados: Se observó una mejora significativa postintervención en el GI y el GIS respecto al GC en percepción de sobrecarga (p = 0,0216). Al año de seguimiento, se observaron mejoras significativas en el GIS respecto al GI en estado de ánimo (p = 0,0271), resiliencia (p = 0,0018), apoyo social percibido (p = 0,014), calidad de vida (p = 0,0001) y salud mental (p = 0,0002); y en el GC frente al GI en estado de ánimo y apoyo social (p < 0,05). Conclusiones: Los resultados respaldan la efectividad de esta intervención psicoterapéutica para mejorar la percepción de bienestar (sobrecarga) y el seguimiento de apoyo para incrementar su eficacia.(AU)
Introduction: Caregivers of patients with Alzheimers Disease experience physical and emotional burnout that can be treated with non-pharmacological interventions. Aim: Assess the efficacy of a group cognitive behavioural psychotherapeutic intervention, for improving well-being perception in caregivers, compared to a support group. Also, we assessed its efficacy after a follow-up period of 1-year post-intervention. Subjects and methods: A multicentre, open, quasi experimental study with control group was conducted. 221 caregivers of patients with Alzheimers Disease, with mild to moderate-severe dementia, were non-randomly assigned to either IG-intervention group: psychotherapeutic program without active follow-up period (n = 80); IGF-intervention group: psychotherapeutic program with active follow-up period (n = 78); or CG-control group: support program with active follow-up period (n = 63). The psychotherapeutic intervention (IG and IGF) is a structured cognitive behavioural group program, of one weekly session over four months. The CG had the same duration. Caregivers burden, mood disorders, resilience, perceived functional social support and quality of life were measured at baseline, post-intervention and after 1-year follow-up. Results: At post-intervention, statistically significant improvements were observed in the IG and IGF compared to CG in caregiver burden (p = 0,0216). After one year follow-up, significant improvements were found in IGF compared to IG in emotional state (p = 0,0271), resilience (p = 0,0018), perceived social support (p = 0,014); quality of life (p = 0,0001) and mental health (p = 0,0002); and in CG versus GI in emotional state and social support (p < 0,05). Conclusions: These results support the efficacy of this psychotherapeutic intervention for improving well-being (burden), and the supportive follow-up period for increasing its efficacy.(AU)
Subject(s)
Humans , Male , Female , Middle Aged , Caregivers , Family Health , Alzheimer Disease , Burnout, Psychological , Psychotherapy , Neurology , Nervous System Diseases , Case-Control StudiesABSTRACT
We demonstrate the first simplified coherent receiver using a 120° hybrid on silicon-on-insulator (SOI) for high speed PON applications. This coherent receiver integrates an inverse taper edge coupler for the received signal, a vertical grating coupler for the local oscillator input, a polarization splitter and rotator (PSR), a 120° hybrid based on a 3×3 multimode interference (MMI) coupler, and three germanium photodetectors. We achieved 25 Gbit/s two-level pulse amplitude modulation (PAM-2) transmission over 30 km standard single mode fiber (SMF) in the C-band without any digital signal processing (DSP) (e.g., pre-emphasis, pulse shaping, equalization, nonlinearity compensation) and dispersion compensation (e.g., optical or digital) either at the transmitter or at the receiver. The requirements for frequency and phase locking of the local oscillator (LO) were avoided due to the use of intensity modulated signals. Receiver sensitivities of -23.70 dBm, -20.30 dBm, and -15.10 dBm are achieved at a bit error rate (BER) below the hard-decision forward error correction (HD-FEC) threshold (i.e., 3.8 × 10-3) in back-to-back (B2B), after 21 km and 30 km, respectively. We also demonstrate 25 Gbit/s PAM-4 transmission achieving receiver sensitivities of -15.30 dBm, -13.90 dBm, and -9.50 dBm below the HD-FEC threshold in B2B, after 10.5 km and 21 km, respectively.
ABSTRACT
Near edge x-ray absorption fine structure spectra have been measured and interpreted by means of density functional theory for five different azabenzenes (pyridine, pyridazine, pyrimidine, pyrazine, and s-triazine) in the gas phase. The experimental and theoretical spectra at the N 1s and C 1s edges show a strong resonance assigned to the transition of the 1s electron in the respective N or C atoms to the lowest unoccupied molecular orbital with pi(*) symmetry. As opposed to the N 1s edge, at the C 1s edge this resonance is split due to the different environments of the core hole atom in the molecule. The shift in atomic core-level energy due to a specific chemical environment is explained with the higher electronegativity of the N atom compared to the C atom. The remaining resonances below the ionization potential (IP) are assigned to sigma or pi [corrected] orbitals with mixed valence/Rydberg [corrected] character. Upon N addition, a reduction of intensity is observed in the Rydberg region at both edges as compared to the intensity in the continuum. Above the IP one or more resonances are seen and ascribed here to transitions to sigma(*) orbitals. Calculating the experimental and theoretical Delta(pi) term values at both edges, we observe that they are almost the same within +/-1 eV as expected for isoelectronic bonded pairs. The term values of the pi(*) and sigma(*) resonances are discussed in terms of the total Z number of the atoms participating in the bond.
Subject(s)
Aza Compounds/chemistry , Benzene Derivatives/chemistry , Carbon/chemistry , Gases , Nitrogen/chemistry , Absorption , Electrons , Energy Transfer , Photons , Pyrazines/chemistry , Pyridines/chemistry , Pyrimidines/chemistry , Spectrum Analysis/methods , Triazines/chemistry , X-RaysABSTRACT
Visible-UV fluorescence emission of gas-phase hydrogen sulfide, H(2)S, has been studied at the S 2p edge with synchrotron radiation excitation. Dispersed fluorescence measurements in the wavelength range 300-900 nm were taken at several photon energies corresponding to the excitations of the S 2p electrons to the unoccupied molecular and Rydberg orbitals. The spectra reveal fluorescence from the H, S, S(+), HS and HS(+) photo-fragments. H is found to be the strongest emitter at Rydberg excitations, while the emission from S(+) is dominant at the molecular resonances and above the S 2p ionization thresholds. The intensities of hydrogen Lyman-alpha (122 nm), Balmer-alpha (656 nm), Balmer-beta (486 nm) transitions as well as the visible-UV total fluorescence yield (300-900 nm) and the total ion yield were measured by scanning the photon energy in small steps across the S 2p edge. The different Balmer lines show some sensitivity to the specific core excitations, which is, however, not so strong as that recently observed in the water molecule [E. Melero García, A. Kivimäki, L. G. M. Pettersson, J. Alvarez Ruiz, M. Coreno, M. de Simone, R. Richter and K. C. Prince, Phys. Rev. Lett., 2006, 96, 063003].
