94 research outputs found
Anna Freud (1895-1982)
No full textAnna Freud, institutrice à Vienne et formée par son père, adapte ses théories à la psychanalyse d'enfant, et ses études sur le processus de développement la conduisent à définir les concepts de normalité et d'anormalité, mettant à jour le processus de distorsion propre à tout développement. L'analyse ayant pour but l'adaptation psychosociale, elle reste pour elle à visée pédagogique. Elle est également partisane d'une formation psychanalytique pour tous ceux qui travaillent avec les enfants. ..
Valutazione strumentale in riabilitazione
No full textLa valutazione strumentale rappresenta, in medicina riabilitativa, un aspetto molto importante, che ha visto notevoli progressi negli ultimi dieci anni grazie agli sviluppi tecnologici e più in generale all’attenzione culturale verso questo settore. Un elevato numero di valutazioni strumentali sono oggigiorno disponibili, sia con metodiche specifiche e peculiari per la medicina riabilitativa (ad es., analisi del cammino, valutazione stabilometrica), sia con metodiche adattate a questo settore e/o condivise con discipline affini (ad es., poli-elettromiografia dinamica di superficie, stimolazione magnetica transcranica, ecografia), altre ancora rimangono di stretta pertinenza di altre specialità per quanto riguarda la loro esecuzione e refertazione (ad es., risonanza magnetica, videofluoroscopia, urodinamica, etc.). Un aspetto importante che va ricordato è che tali procedure sono fondamentali non solo sul versante diagnostico, ma anche nella definizione della prognosi riabilitativa e del programma riabilitativo
Advanced Image Preprocessing and Integrated Modeling for UAV Plant Image Classification
No full textThe automatic identification of plant species using unmanned aerial vehicles (UAVs) is a valuable tool for ecological research. However, challenges such as reduced spatial resolution due to high-altitude operations, image degradation from camera optics and sensor limitations, and information loss caused by terrain shadows hinder the accurate classification of plant species from UAV imagery. This study addresses these issues by proposing a novel image preprocessing pipeline and evaluating its impact on model performance. Our approach improves image quality through a multi-step pipeline that includes Enhanced Super-Resolution Generative Adversarial Networks (ESRGAN) for resolution enhancement, Contrast-Limited Adaptive Histogram Equalization (CLAHE) for contrast improvement, and white balance adjustments for accurate color representation. These preprocessing steps ensure high-quality input data, leading to better model performance. For feature extraction and classification, we employ a pre-trained VGG-16 deep convolutional neural network, followed by machine learning classifiers, including Support Vector Machine (SVM), random forest (RF), and Extreme Gradient Boosting (XGBoost). This hybrid approach, combining deep learning for feature extraction with machine learning for classification, not only enhances classification accuracy but also reduces computational resource requirements compared to relying solely on deep learning models. Notably, the VGG-16 + SVM model achieved an outstanding accuracy of 97.88% on a dataset preprocessed with ESRGAN and white balance adjustments, with a precision of 97.9%, a recall of 97.8%, and an F1 score of 0.978. Through a comprehensive comparative study, we demonstrate that the proposed framework, utilizing VGG-16 for feature extraction, SVM for classification, and preprocessed images with ESRGAN and white balance adjustments, achieves superior performance in plant species identification from UAV imagery
Combined effects of backward treadmill training and botulinum toxin type A therapy on gait and balance in patients with chronic stroke: A pilot, single-blind, randomized controlled trial
No full textBackground: Backward walking is recommended to improve the components of physiological gait in neurological disease. Botulinum toxin type A is an effective safe first line-treatment for post-stroke spasticity. Objective: To compare the effects of backward treadmill training (BTT) versus standard forward treadmill training (FTT) on motor impairment in patients with chronic stroke receiving botulinum toxin type A therapy. Methods: Eighteen chronic stroke patients were randomly assigned to receive BTT (n = 7) or FTT (n = 11) as adjunct to botulinum toxin type A therapy. A total of twelve 40-minute sessions (3 sessions/week for 4 weeks) of either BTT or FTT were conducted. A blinded assessor evaluated the patients before and after treatment. The primary outcome was the 10-meter Walking Test (10 MWT). Secondary outcomes were the modified Ashworth Scale, gait analysis, and stabilometric assessment. Results: Between-group comparison showed a significant change on the 10 MWT (P = 0.008) and on stabilometric assessment [length of centre of pressure CoP (P = 0.001) and sway area (P = 0.002) eyes open and length of CoP (P = 0.021) and sway area (P = 0.008) eyes closed] after treatment. Conclusions: Greater improvement in gait and balance was noted after BTT than after FTT as an adjunct to botulinum toxin therapy in patients with chronic stroke
Serina prostoma Ancey 1884
No full text4. <i>Serina prostoma</i> (Ancey, 1884) <p>Figs. 1, 2 K– O, 4, 9, 10; Tables 1–3, 6</p> <p> <i>Bulimus prostomus</i> Ancey, 1884: 395.</p> <p> <i>Bulimus prostomus</i> var. <i>leucochila</i> Ancey, 1884: 396 (Type locality: Yerkalo).</p> <p> <i>Buliminus</i> (<i>Serina</i>) <i>prostoma—</i> Kobelt, 1902: 933, pl. 131, figs. 8–10.</p> <p> <i>Buliminus</i> (<i>Holcauchen</i>) <i>tubios</i> Annandale, 1924: 394, pl.16, figs. 6, 6a (Type locality: Gorges in the Yangtsa district of the Upper Mekong).</p> <p> <i>Ena</i> (<i>Serina</i>) <i>prostomus—</i> Yen, 1938: 442.</p> <p> <i>Serina prostoma</i> –Yen, 1939: 87, pl. 8, fig. 24. Yen, 1942: 255. Chen, Zhou, Luo & Zhang, 2003: 442.</p> <p> <i>Serina deqenensis</i> Chen, Zhou & Luo, 2003: 444, figs. 1–4 (Type locality: Meilishi Town).</p> <p> <b>Type locality.</b> Tsé-kou (Xizang Autonomous Region).</p> <p> <b>Material examined.</b> HBUMM-04287: 16 fma (all measured and 1 dissected) and 1 juv.; Deqing County, Yunnan, 2003–VIII–28, colln. KS. HBUMM-04296: 171 fma (20 measured and 2 dissected) and 15 juv.; eastern bank of Lancangjiang River, western to Yanjing Town, Mangkang County, Xizang Autonomous Region, 2583 m a.s.l., 29º02ʹ0 0.0ʹ N, 098º36ʹ22.9ʹ E), red Sandstone + sandy loam, bushes and grass, 2002–VII–11, colln. AW & MW (Fig. 10 in this work). NHM-1920.8.10.38 Reg.: 1 full matured shell. Mekong, Thibet. NHM- 1912.6.27.69–71 Reg.: 3 fms, all measured. Mekong (imprecise locality), Upper Yangtze, Tibet. NHM: 1 fms. Mekong, Ancey, Thibet. Trechmann Acc. No. 2176. NHM-1923.5.24.17–36: paratypes of <i>Buliminus</i> (<i>Holcauchen</i>) <i>tubios</i>, numerous fms; 5 measured. Gorge of Mekong above Yangtsa; alt. 2134 m to 2286 m, arid. SMF-42050: Paratype, measured. Dshy-kow (unrecognised locality belonged to Xizang Autonomous Region today), Szechwan, China (Ancey in Slg. Möllendorff—see Yen, 1939: 87).</p> <p> <b>Distribution.</b> Xizang Autonomous Region (type locality, Mangkang, Mekong), Yunnan (Deqing).</p> <p> <b>Diagnosis.</b> Shell with the most swollen part occurred at penultimate whorl. Whorls with a narrow, defined zone below the suture. Last whorl descending in front; straight or concaved at periphery. Aperture not duplicate; separated from body whorl; not armed.</p> <p> <b>Shell.</b> Turrited, or fusiform; dextral; apically more or less abruptly pointed; opaque (except apical 4 whorls slightly semitransparent); more or less glossy; with the most swollen part occurred at penultimate whorl; height 11.2–13.3–14.9, diameter major 3.4–4.5–5.5, ratio of height /diameter major 2.53–2.96–3.50. Growth lines fine and clear. Whorls 7 7/8–8 1/2–9 1/4, convex (except ultimate two whorls); with a narrow, defined zone below the suture. Embryonic shell 1 5/8–1 7/8+–2 1/8 whorls. Postnuclear whorls smooth. Last whorl slightly descending in front; slightly concaved or straight at periphery; abaperturally with a rugate region with crowded and/or thickened growthlinelike folds. Aperture almost in a plane and straight; ovate; rather oblique; separated from body whorl; not armed; height 3.2–3.9–4.5, width 2.8–3.5–3.9, ratio of shell height /apertural height 2.99–3.41–4.02. Aperture not duplicate. Peristome and parietal callus almost completely fusing except for a channel at upper insertion of peristome. Reflexed part of peristome straight and not curved backward. Abapertural peripheral depression on body whorl spirally extending for ca. 1 whorl. Columellar margin reflexed. Columella oblique. Umbilicus widely open. Apical four whorls reddish brown; subsequent whorls white with a few streaks in light brown; bandless. Aperture white. Apical whorls differently tinted. Measured specimens: NHM- 1912.6.27.69-71, NHM- 1923.5.24.17-36, HBUMM-04287, HBUMM-04296, SMF-42050: 45 shells.</p> <p> <b>Genitalia.</b> Vas deferens proximally swollen; entering epiphallus laterally with distinct demarcation. Epiphallus short; straight; cylindrical and of uniform thickness. Epiphallic caecum blunt apically; located in middle of epiphallus. Flagellum short; tubular; proximally normal; with tip blunt. Penis clavate; evenly thick; laterally entering epiphallus; thin-walled. Longitudinal pilasters more than two; not fused at epiphallic pore; forming 2 Vshaped structures. V-shaped pilaster with proximal free end approaching at penial retractor insertion; without papilla formed by fused distal pilasters. Penial process absent. Penial appendix short; branched off from penis at some distance from atrium; with A-1 fused with A-2, A-3 distinct, and A-4 fused with A-5. A-1 long; without verge toward penial chamber. A-2 internally with longitudinal pilasters; near A-3 internally with a ring of papilla. A-3 opening into A-2 by a long needle-like papilla. A-5 short; straight. Penial retractor biramous; with arms arising from diaphragm separately, or with arms arising from diaphragm closed to each other; with penial branch attaching to proxmal penis; with appendical branch attaching to A-1+A-2. Atrium short; with weak atrial retractor. Free oviduct moderately long; subequal to vagina in length. Vagina moderately long; not swollen; straight; unpigmented. Bursa copulatrix duct moderately long; proximally straight. Bursa copulatrix in normal size; well defined; with stalk; without apical ligament; with long neck. Diverticle longer than or subequal to reservoir in length; unexpanded. Bursa copulatrix and diverticle distinguishable; forked more distally from their base. Measurement of genitalia: See Table 2 (HBUMM-04287–specimen 1 and HBUMM-04296–specimen 21 are measured).</p> <p> <b>Taxonomic remarks.</b> <i>Buliminus</i> (<i>Holcauchen</i>) <i>tubios</i> is a obvious synonym of <i>Serina prostoma</i>. <i>Bulimus prostomus leucochila</i>, was established by the diagnosis “ <i>Testa minore, exiliore, pallid caerulea; apice corneo; aperture intus subcornea; peristomate albido;-alt. 12 millim</i> ” (Ancey 1884). Such shell size and main coloration feature is also observed in the specimens HBUMM-04287 of which 16 shells have the white aperture and with shell height range 11.2–12.7–14.0 mm. Therefore it is insufficient to be distinguished from <i>S</i>. <i>prostoma</i>. Since no reliable diagnosis of <i>Serina deqenensis</i> was given by Chen, et al. (2003), this taxon is here regarded as a synonym of <i>S. prostoma</i>.</p> <p> <b>Ecological remarks.</b> This species dwells in the very arid environment near the bank of Langcangjiang River (Yanjing) (Fig. 10 A). In the same season, as observed by the first author at the locality situated nearby, another enid snail <i>Holcauchen</i> sp. inhabits a relatively wet environment characterized by the rich coverage of periodically hydrophilous moss, algae and lichen. This slightly indicates there might be different habitat preference by these two genera/species.</p>Published as part of <i>Wu, Min & Xu, Qin, 2013, Serina Gredler (Gastropoda, Stylommatophora: Enidae), the continuous-peristomed mountain snails endemic to the eastern slope of the Qinghai-Xizang Plateau, pp. 43-66 in Zootaxa 3620 (1)</i> on pages 51-53, DOI: 10.11646/zootaxa.3620.1.2, <a href="http://zenodo.org/record/283400">http://zenodo.org/record/283400</a>
Machine Learning Models for Predicting Short-Long Length of Stay of COVID-19 Patients
No full textDuring 2020 and 2021, managing limited healthcare resources and hospital beds has been a fundamental aspect of the fight against the COVID-19 pandemic. Predicting in advance the length of stay, and in particular identifying whether a patient is going to stay in the hospital longer or less than a week, can provide important support in handling resources allocation. However, there have been significant changes in terms of containment measures, virus diffusion, new treatments, vaccines, and new variants of SARS-CoV-2 during the last period. These changes pose several conceptual drift issues that can limit the usefulness of machine learning in this context. In this work, we present a machine learning system trained and tested using data from more than 6000 hospitalised patients in northern Italy, distributed over almost two years of pandemic. We show how machine learning can be effective even by analysing data over this long period of time, also exploiting a model that predicts the patient's outcome in terms of discharge or death. Furthermore, learning from data that also consider deceased patients is a common issue in predicting the length of stay because they have severe conditions similar to patients with a long stay period, but may actually have a very short duration of hospitalisation. For this purpose, we present a method for handling data from alive and deceased patients, exploiting more patient records, increasing the robustness of the model and its performance in this task. Finally, we investigate the features that are most relevant to the prediction of the simplified length of stay
Short-wave diathermy for spastic equinus foot in chronic stroke patients: a proof-of-concept pilot study
No full textBACKGROUND: Physical modalities may be useful to manage post-stroke spasticity. Shortwave diathermy has been demonstrated to improve extensibility of the myotendinous tissue. Spasticity may alter morphology of the muscle and its elastic properties. Our main aim was to evaluate the effects of shortwave diathermy on spastic equinus foot in stroke patients. METHODS: Ten chronic stroke patients with spastic equinus foot received 10 shortwave diathermy sessions, 5 days/week for 2 consecutive weeks to the spastic calf muscles. Clinical (modified Ashworth scale and ankle dorsiflexion passive range of motion) and ultrasound (spastic gastrocnemius muscle echo intensity and hardness percentage measured by sonoelastography) evaluation was done before, after treatment, and at two weeks of follow-up. RESULTS: A significant difference in calf muscle spasticity (P=0.004), ankle passive range of motion (P=0.014), and spastic gastrocnemius muscle hardness percentage (P=0.004) was found after treatment. A significant difference in calf muscle spasticity (P=0.004) was found also at the follow-up evaluation. CONCLUSIONS: Our preliminary findings support the hypothesis that shortwave diathermy might improve calf muscle tone, ankle passive range of motion, and gastrocnemius muscle elasticity in chronic stroke patients with spastic equinus. This might be due to the deep thermal effects coupled with the rheological direct action of shortwave diathermy on spastic muscle
Deep-Learning-Based Land Cover Mapping in Franciacorta Wine Growing Area
No full textLand cover mapping is essential to understanding global land-use patterns and studying biodiversity composition and the functioning of eco-systems. The introduction of remote sensing technologies and artificial intelligence models made it possible to base land cover mapping on satellite imagery in order to monitor changes, assess ecosystem health, support conservation efforts, and reduce monitoring time. However, significant challenges remain in managing large, complex satellite imagery datasets, acquiring specialized datasets due to high costs and labor intensity, including a lack of comparative studies for the selection of optimal deep learning models. No less important is the scarcity of aerial datasets specifically tailored for agricultural areas. This study addresses these gaps by presenting a methodology for semantic segmentation of land covers in agricultural areas using satellite images and deep learning models with pre-trained backbones. We introduce an efficient methodology for preparing semantic segmentation datasets and contribute the “Land Cover Aerial Imagery” (LICAI) dataset for semantic segmentation. The study focuses on the Franciacorta area, Lombardy Region, leveraging the rich diversity of the dataset to effectively train and evaluate the models. We conducted a comparative study, using cutting-edge deep-learning-based segmentation models (U-Net, SegNet, DeepLabV3) with various pre-trained backbones (ResNet, Inception, DenseNet, EfficientNet) on our dataset acquired from Google Earth Pro. Through meticulous data acquisition, preprocessing, model selection, and evaluation, we demonstrate the effectiveness of these techniques in accurately identifying land cover classes. Integrating pre-trained feature extraction networks significantly improves performance across various metrics. Additionally, addressing challenges such as data availability, computational resources, and model interpretability is essential for advancing the field of remote sensing, in support of biodiversity conservation and the provision of ecosystem services and sustainable agriculture
Effects of deep heating modalities on the morphological and elastic properties of the non-insertional region of achilles tendon: a pilot study
No full textBackground: Over the last 20 years, both diathermy and ultrasound have been popular choices for many clinicians in treating musculoskeletal disorders. However, there is a lack of clinical evidence of deep heating modalities to treat tendon pathology, There is no study to investigate the effects of such as physical modalities on morphological and elastic properties on the human tendons. Objective: the objective of the present study was to compare the effects of diathermy and ultrasound therapies on cross sectional area, transversal height and hardness percentage of the non-insertional region of the Achilles tendon in able-bodied subjects. Methods: healthy volunteers were divided in diathermy and ultrasound group received six 15-min treatment sessions. Before and after treatment a sonographic assessment was conducted by mean of ultrasonography and the following parameters were recorded: cross sectional area, transversal height and hardness percentage. Results: thirty-two subjects were enrolled. Between-group comparisons showed a significant change on hardness percentage (p = 0.004) after treatment in diathermy therapy group. Within-group comparison showed a significant improvement in the hardness percentage for the diathermy (p = 0.001) and ultrasound (p = 0.046) after two weeks of treatment. Conclusion: this pilot study demonstrated larger effects on morphological and elastic properties of the non-insertional region of the Achilles tendon after diathermy than ultrasound therapy in normal tendons. Diathermy may be a useful deep heat modality for treating non-insertional Achilles tendinopathy
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