Innovating in Organizations: A Model of Climate Components Facilitating the Creation of New Value

This research investigates the influence of components of organizational climate on innovation in organizations, extending previous work on the antecedents of innovation outcomes. Specific aspects of climate are measured utilizing a sample of 249 managers in organizations across industries in Spain and the United States, including respondents' perceptions of collaborative communication, trust and commitment, along with the organization's orientation to innovation. A model is proposed and tested, in which collaborative communication within an organization generates trust, and these constructs are associated with greater commitment. Supported by an orientation to innovation, these variables are associated with innovation outcomes in the organization. Results showed that collaborative communication between employees builds trusting relationships, which then lead to a stronger commitment to the organization. Organizational commitment facilitates both administrative and technical innovation. Orientation to innovation is also found to partially mediate the relationship between organizational commitment and both administrative and technical innovation. Discussion and implications that guide management practices in support of innovation are presented, including the importance of fostering and rewarding behaviours associated with successful innovation outcomes that create new value for the organization.     

Validation of tri-axial accelerometer for the calculation of elevation angles

One of the main issues in occupational studies focusing on musculoskeletal disorders of the upper extremity is how to best quantify workers' exposures to risk factors during a workday. Direct measurement is preferred because it is objective and provides precise measurements. To measure elevation angle exposure of the upper extremity, accelerometers are commonly used. The main problem with the use of accelerometers is the fact that they are sensitive to linear acceleration and can only assess two axes of rotation. In the present study the Virtual Corset, a pager-sized, battery powered, tri-axial linear accelerometer with an integrated data logger, was validated in vitro for the reconstruction of elevation angles under static conditions and angle error prediction under dynamic conditions. For static conditions, the RMS angle error was less than 1°. Under dynamic conditions the elevation angle error was influenced by the radius and angular acceleration. However, the angle error was predicted well with an RMS difference of 3°. It was concluded that the Virtual Corset can be used to accurately predict arm elevation angles under static conditions. Under dynamic conditions, an understanding of the motion being studied and the placement of the Virtual Corset relative to the joint are necessary.

Relevance to industry

A device is tested that could capture posture exposure of the shoulder at the workplace during a workday. Such exposure measurement can be used to test interventions and to develop preventive guidelines to reduce risk factors associated with musculoskeletal injuries of the upper extremity.     

Neighborhood, family, and subjective socioeconomic status: How do they relate to adolescent health?

This study investigated the role of neighborhood, family, and individual subjective socioeconomic status (SES) in predicting adolescent physical health and psychological characteristics. Three hundred fifteen adolescents completed assessments of blood pressure, cortisol, and body mass index (BMI). Results revealed that lower neighborhood SES was associated with higher BMI and lower basal cortisol levels and that these effects persisted after controlling for family SES. Both family SES and neighborhood SES predicted negative psychological characteristics and experiences such as hostility and discrimination. In contrast, only subjective SES predicted positive psychological characteristics. These findings suggest the importance of understanding influences at the individual, family, and neighborhood levels for optimally targeting interventions to reduce health disparities earlier in life. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Mapping forest degradation in the Eastern Amazon from SPOT 4 through spectral mixture models

In this paper, we present a methodology to map classes of degraded forest in the Eastern Amazon. Forest degradation field data, available in the literature, and 1-m resolution IKONOS image were linked with fraction images (vegetation, nonphotosynthetic vegetation (NPV), soil and shade) derived from spectral mixture models applied to a Satellite Pour L'observation de la Terre (SPOT) 4 multispectral image. The forest degradation map was produced in two steps. First, we investigated the relationship between ground (i.e., field and IKONOS data) and satellite scales by analyzing statistics and performing visual analyses of the field classes in terms of fraction values. This procedure allowed us to define four classes of forest at the SPOT 4 image scale, which included: intact forest; logged forest (recent and older logged forests in the field); degraded forest (heavily burned, heavily logged and burned forests in the field); and regeneration (old heavily logged and old heavily burned forest in the field). Next, we used a decision tree classifier (DTC) to define a set of rules to separate the forest classes using the fraction images. We classified 35% of the forest area (2097.3 km²) as intact forest. Logged forest accounted for 56% of the forest area and 9% of the forest area was classified as degraded forest. The resultant forest degradation map showed good agreement (86% overall accuracy) with areas of degraded forest visually interpreted from two IKONOS images. In addition, high correlation (R²=0.97) was observed between the total live aboveground biomass of degraded forest classes (defined at the field scale) and the NPV fraction image. The NPV fraction also improved our ability to mapping of old selectively logged forests.     

Polyacrylic acid (poly-A) as a chelant and dispersant

Polyacrylic acid was synthesized in water by persulfate-initiated polymerization (solution polymerization) of glacial acrylic acid in the absence of a chain-transfer agent. The final product is odorless and colorless. Chelation for calcium ions using a calcium electrode show that our poly(acrylic acid) has a higher chelation capacity than that of existing commercial poly(acrylic acids). A design of experiments was performed to optimize the synthesis conditions to obtain poly(acrylic acid) with a high maximum chelation value. These studies also helped us to gain insight into its high chelation capacity. The chelation capacity for calcium reaches its highest values when polymerization near isothermal conditions is done ∼ 95°C with an acrylic acid concentration of ≤21 wt % and an addition time >1 h. These conditions favor higher molecular weight poly(acrylic acid) with a polydispersity ∼ 4. The dispersion properties of our poly(acrylic acid) are similar to those of the commercial ones. This dual capability of chelation and dispersion is absent in commercial chelants such as ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA), and their analogs. At pH > 7, chelation of calcium by our poly(acrylic acid) is much higher than that observed with EDTA. Characterization by NMR, Raman, FTIR, and molecular modeling are included in an attempt to understand structural features that can explain the higher chelation capacity of our atactic poly(acrylic acid).     

Perception of vowel length by Japanese- and English-learning infants.

This study investigated vowel length discrimination in infants from 2 language backgrounds, Japanese and English, in which vowel length is either phonemic or nonphonemic. Experiment 1 revealed that English 18-month-olds discriminate short and long vowels although vowel length is not phonemically contrastive in English. Experiments 2 and 3 revealed that Japanese 18-month-olds also discriminate the pairs but in an asymmetric manner: They detected only the change from long to short vowel, but not the change in the opposite direction, although English infants in Experiment 1 detected the change in both directions. Experiment 4 tested Japanese 10-month-olds and revealed a symmetric pattern of discrimination similar to that of English 18-month-olds. Experiment 5 revealed that native adult Japanese speakers, unlike Japanese 18-month-old infants who are presumably still developing phonological perception, ultimately acquire a symmetrical discrimination pattern for the vowel contrasts. Taken together, our findings suggest that English 18-month-olds and Japanese 10-month-olds perceive vowel length using simple acoustic?phonetic cues, whereas Japanese 18-month-olds perceive it under the influence of the emerging native phonology, which leads to a transient asymmetric pattern in perception. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Examining MMPI-2 F-family scales in PTSD-diagnosed veterans of Operation Enduring Freedom and Operation Iraqi Freedom.

Our study examined Minnesota Multiphasic Personality Inventory-2 (MMPI-2) F-family validity scales (F, Fb, F-K, Fp) in treatment-seeking veterans diagnosed with posttraumatic stress disorder (PTSD) related to Operation Enduring or Iraqi Freedom (OEF/OIF). Seventy-nine percent of veterans had F T scores over 65, 54% elevated F over 80 T; and 71% elevated Fb above 65 or 80. Fewer veterans elevated F-K (>13; 22%) and Fp (>100 T; 5%). Differences emerged between veterans with and without elevated (>65 T) F scores on F-family validity scales, clinical scales, and self-report measures of psychopathology. Elevations for F-family validity scales at various cut points are reported. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

On Rivers and Drawing Practice

This work flows from two propositions: sites and settings are interdependent, and understanding why and how is fundamental and inexhaustible for landscape architecture. It builds on the work of Scottish–American landscape architect Ian McHarg and Scottish town planner Patrick Geddes. Although separated in time by nearly half a century, their shared belief in the role of regional knowledge for local design and planning led to parallels in their canon relative to subject matter and approach. Prompted by a recent comparative study of two rivers influential to McHarg’s work—the Clyde and the Delaware—the essay reflects on transect modeling and related drawing practice that engage incremental change, accumulation, and time. It begins with a discussion of relief maps and their application to river basin research in the United States, Italy, and Scotland. This is followed by a brief retrospective on the contributions of McHarg and Geddes to regional planning theory and practice. The interdisciplinary usefulness of transect-based practice for observing and analyzing landscape phenomena is then presented, and provides context for a recent exhibition by the author, which explored both analog and digital drawing techniques. The essay concludes by reasserting the importance of field study to landscape architecture and other works of environmental imagination.     

Electron back-scattered diffraction of crystallized vanadium dioxide thin films on amorphous silicon dioxide

Crystalline films and isolated particles of vanadium dioxide (VO₂) were obtained through solid phase crystallization of amorphous vanadium oxide thin films sputtered on silicon dioxide. Electron back-scattered diffraction (EBSD) was used to study the crystals obtained in the thin films, to differentiate them from different vanadium oxide stoichiometries that may have formed during the annealing process, and to study their phase and orientation. EBSD showed that the crystallization process yielded crystalline vanadium dioxide thin films, semi-continuous thin films, and films of isolated particles, and did not show evidence of other vanadium oxide stoichiometries present. Indexing of the crystals for the orientation study was performed using EBSD patterns for the tetragonal phase of vanadium dioxide, since it was observed that EBSD patterns for the monoclinic and tetragonal phases of vanadium dioxide are not distinguishable by computer automated indexing. Using the EBSD patterns for the tetragonal phase of vanadium dioxide, orientation maps showed that all VO₂ crystals that were measurable (approximately the thickness of the film) had a preferred orientation with the c-axis of the tetragonal phase parallel to the plane of the specimen.