1,340 research outputs found
Development perspectives of relational capital in women-led firms
The purpose of the paper is to analyze the strategic role of relational capital for the achievement of sustainable development in Italian micro and small tourist businesses run by women. The paper focuses on the tourism enterprises because that sector constitute 10 % of the Italian GDP. The qualitative research methodology that has been used is that of case study research (Yin, 2009). Such process consisted in a survey with an ad-hoc questionnaire developed to analyze the distinctive features of a woman-owned micro and small enterprise that can be identified with the CAOS model (Paoloni, 2011). The paper applies the CAOS model examining the personal characteristics of the female entrepreneur (C); the environment in which the in SMEs operates (A); organizational and managerial aspects (O); and the motivations for manage a new business (S). This model is able to link these factors and classify different types of connections, it is possible to identify the kind of existing relations. The paper intends to help address a gap in the existing literature regarding the management and governance of tourism firms run by women. The paper can contribute to improving the competitiveness Italian enterprises studying how women entrepreneurs manage her business
Immigrant women’s entrepreneurship: is there a development model in Italy?
The aim of this paper is to verify if there is a typical enterprise model for the development of immigrant female entrepreneurship in Italy. Based on the literature on the subject, however, it is useful to ask the following research question: “can membership in a national and international network facilitate the development of immigrant female entrepreneurship operating in Italy”? The survey was carried out by submitting a questionnaire to a sample of immigrant women entrepreneurs in the textile and clothing sector based in Italy. The choice fell on this specific economic segment because it represents the third largest sector for the number of female immigrant entrepreneurs (2.271 units) which amounts to 16% of the total number of entrepreneurs operating in the same sector. The percentage of respondents was 35%, with 795 completed questionnaires. The structure of the questionnaire reflects the need to examine the personal features of female entrepreneurs, the organizational aspects and the style of leadership, the task environment in which the enterprise works and the main possible benefits, or
obstacles, they might obtain, or face. In addition to the objective of enlarging the literature regarding the management and governance of businesses run by women entrepreneurs, that is quite limited to date, this paper is a contribution to the analysis of a possible development model of women entrepreneurs
Competitiveness and sustainability in tourism industry: the "albergo diffuso" case study
The objective of the analysis developed in this paper is to verify whether the sustainability of the hotel ospitality model contributes to the competitiveness of tourist destinations. The research question is: does the model of “albergo diffuso” satisfy the requirement for a social, economic and environmental sustainability? The research method adopted consisted in a survey with the submission of a questionnaire to a number of alberghi diffusi operating worldwide, that is 130 units of analysis. The submission period went from October to December 2016. Through the questionnaire submitted to the interviewees it has been possible to analyze the motivation for the business start-up as well as the characteristics of the entrepreneur, the managerial systems and the governance style. The results will be analyzed through the application of the Weaver model (2014; 2017) which is considered essential to evaluate the contribution of the albergo diffuso to tourism sustainability. The implementation of the Weaver matrix to evaluate the contribution of the albergo diffuso to the sustainability of a tourist destination is the original element of the paper. The paper discusses the implications of sustainability with particular regards to the “albergo diffuso”. Therefore, it would be suitable to expand the analysis to additional models of tourist hospitality present in the international tourism scenario
Comment on “early efficacy of intra-articular HYADD® 4 (Hymovis®) injections for symptomatic knee osteoarthritis”
We read with great interest the study by Priano titled“Early
efficacy of intra-articular HYADD® 4 (Hymovis®) injections
for symptomatic knee osteoarthritis.”
1
The author would like
to explore the efficacy of intra-articular HYADD 4 (Hymovis)
injections for symptomatic knee osteoarthritis. Results from
this study are very interesting and promising from a clinical
aspect; however, we believe that studying patient’sclinical
status with visual analog scale and Western Ontario and
McMaster Universities Arthritis Index scale should be supported by biomechanical information. From this point of
view, to have more data that could influence the clinical
practice, it is important to note the possible action that intraarticular injections of different kinds of hyaluronic acid could
have on walking biomechanics using an objective measurement tool as gait analysis. In our opinion, the work by Priano1
is promising because it investigates the efficacy of a new
formulation of hyaluronic acid. Nowadays, many hyaluronic
acid formulations are approved for clinical use in Europe and
the United States. Furthermore, hyaluronic acid injections’
efficacy has been demonstrated also in hip osteoarthritis.
2
However, even if these formulations differ in their chemical–
physical properties, joint space half-life, rheological properties, and clinical efficacy, there are few studies that investigate hyaluronic acid’s possible action from a biomechanical
point of view.
3,4
From this point of view, we believe that
osteoarthritis management and rehabilitation should be
prescribed after an objective analysis of functional walking
alterations using gait analysis instrumentations. The use
of gait analysis should be desirable during diagnosis and
follow-up. In fact, it is capable to identify different walking
patterns in patient with osteoarthritis of the lower limbs,
whereas the radiology can evaluate the status of the joint’s
structures
Kinematic analysis of reaching movements of the upper limb after total or reverse shoulder arthroplasty
Studies have analyzed three-dimensional complex motion of the shoulder in healthy subjects or patients undergoing total shoulder arthroplasty (TSA) or reverse shoulder arthroplasty (RSA). No study to date has assessed the reaching movements in patients with TSA or RSA. Twelve patients with TSA (Group A) and 12 with RSA (Group B) underwent kinematic analysis of reaching movements directed at four targets. The results were compared to those of 12 healthy subjects (Group C). The assessed parameters were hand-to-target distance, target-approaching velocity, humeral-elevation angular velocity, normalized jerk (indicating motion fluidity), elbow extension and humeral elevation angles. Mean Constant score increased by 38 points in Group A and 47 in Group B after surgery. In three of the tasks, there were no significant differences between healthy subjects and patients in the study groups. Mean target-approaching velocity and humeral-elevation angular velocity were significantly greater in the control group than in study groups and, overall, greater in Group A than Group B. Movement fluidity was significantly greater in the controls, with patients in Group B showing greater fluidity than those in Group A. Reaching movements in the study groups were comparable, in three of the tasks, to those in the control group. However, the latter performed significantly better with regard to target-approaching velocity, humeral-elevation angular velocity and movement fluidity, which are the most representative characteristics of reaching motion. These differences, that may be related to deterioration of shoulder proprioception after prosthetic implant, might possibly be decreased with appropriate rehabilitation
Assessing the cervical range of motion in infants with positional plagiocephaly
Purpose: To determine if infants with positional plagiocephaly
have limitations of active and passive cervical range of motion
measured with simple and reliable methods.
Methods: The examiners assessed bilateral active and passive
cervical rotations and passive cervical lateral flexion. Cervical
assessment was performed twice by 2 different physicians to
assess intertester reliability. To assess intratester reliability the
first investigator performed a second examination 48 hours after
the first one.
Results: One-hundred nine subjects were analyzed; 70.7% of the
sample had head positional preference on the right, while 29.3% had
head positional preference on the left (x2 35.52, P <0.001).
Cervical rotations and lateral flexion showed reliable levels of
agreement for intra and intertester reliability.
Conclusions: The most limited range of motion in infants with
positional plagiocephaly was cervical active rotation which affected
more than 90% of patients. Passive cervical rotations and lateral
flexion were limited in more than 60% of patient
Reactive postural responses to continuous yaw perturbations in healthy humans: the effect of aging
Maintaining balance stability while turning in a quasi-static stance and/or in dynamic motion requires proper recovery mechanisms to manage sudden center-of-mass displacement. Furthermore, falls during turning are among the main concerns of community-dwelling elderly population. This study investigates the effect of aging on reactive postural responses to continuous yaw perturbations on a cohort of 10 young adults (mean age 28 ± 3 years old) and 10 older adults (mean age 61 ± 4 years old). Subjects underwent external continuous yaw perturbations provided by the RotoBit1D platform. Different conditions of visual feedback (eyes opened and eyes closed) and perturbation intensity, i.e., sinusoidal rotations on the horizontal plane at different frequencies (0.2 Hz and 0.3 Hz), were applied. Kinematics of axial body segments was gathered using three inertial measurement units. In order to measure reactive postural responses, we measured body-absolute and joint absolute rotations, center-of-mass displacement, body sway, and inter-joint coordination. Older adults showed significant reduction in horizontal rotations of body segments and joints, as well as in center-of-mass displacement. Furthermore, older adults manifested a greater variability in reactive postural responses than younger adults. The abnormal reactive postural responses observed in older adults might contribute to the well-known age-related difficulty in dealing with balance control during turning
Motor recovery after stroke: from a vespa scooter ride over the roman sampietrini to focal muscle vibration (fMV) treatment. A 99mTc-HMPAO SPECT and neurophysiological case study
Focal repetitive muscle vibration (fMV) is a safe and well-tolerated non-invasive brain and peripheral stimulation (NIBS) technique, easy to perform at the bedside, and able to promote the post-stroke motor recovery through conditioning the stroke-related dysfunctional structures and pathways. Here we describe the concurrent cortical and spinal plasticity induced by fMV in a chronic stroke survivor, as assessed with 99mTc-HMPAO SPECT, peripheral nerve stimulation, and gait analysis. A 72-years-old patient was referred to our stroke clinic for a right leg hemiparesis and spasticity resulting from a previous (4 years before) hemorrhagic stroke. He reported a subjective improvement of his right leg's spasticity and dysesthesia that occurred after a30-min ride on a Vespa scooter as a passenger over the Roman Sampietrini (i.e., cubic-shaped cobblestones). Taking into account both the patient's anecdote and the current guidelines that recommend fMV for the treatment of post-stroke spasticity, we then decided to start fMV treatment. 12 fMV sessions (frequency 100 Hz; amplitude range 0.2-0.5 mm, three 10-min daily sessions per week for 4 consecutive weeks) were applied over the quadriceps femoris, triceps surae, and hamstring muscles through a specific commercial device (Cro®System, NEMOCOsrl). A standardized clinical and instrumental evaluation was performed before (T0) the first fMV session and after (T1) the last one. After fMV treatment, we observed a clinically relevant motor and functional improvement, as assessed by comparing the post-treatment changes in the score of the Fugl-Meyer assessment, the Motricity Index score, the gait analysis, and the Ashworth modified scale, with the respective minimal detectable change at the 95% confidence level (MDC95). Data from SPECT and peripheral nerve stimulation supported the evidence of a concurrent brain and spinal plasticity promoted by fMV treatment trough activity-dependent changes in cortical perfusion and motoneuron excitability, respectively. In conclusion, the substrate of post-stroke motor recovery induced by fMV involves a concurrently acting multisite plasticity (i.e., cortical and spinal plasticity). In our patient, operant conditioning of both cortical perfusion and motoneuron excitability throughout a month of fMV treatment was related to a clinically relevant improvement in his strength, step symmetry (with reduced limping), and spasticity
PixFEL: development of an X-ray diffraction imager for future FEL applications
A readout chip for diffraction imaging applications at new generation X-ray FELs (Free Electron
Lasers) has been designed in a 65 nm CMOS technology. It consists of a 32 Ă— 32 matrix, with
square pixels and a pixel pitch of 110 µm. Each cell includes a low-noise charge sensitive amplifier
(CSA) with dynamic signal compression, covering an input dynamic range from 1 to 104 photons
and featuring single photon resolution at small signals at energies from 1 to 10 keV. The CSA
output is processed by a time-variant shaper performing gated integration and correlated double
sampling. Each pixel includes also a small area, low power 10-bit time-interleaved Successive
Approximation Register (SAR) ADC for in-pixel digitization of the amplitude measurement. The
channel can be operated at rates up to 4.5 MHz, to be compliant with the rates foreseen for future
X-ray FEL machines. The ASIC has been designed in order to be bump bonded to a slim/active
edge pixel sensor, in order to build the first demonstrator for the PixFEL (advanced X-ray PIXel
cameras at FELs) imager
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