The article discusses the impact of the size of the shading caused by natural obstacles as the depth of the frame on the heat balance of the room, thus the selection and size of air conditioning ...equipment. Taking into account this phenomenon on the design stage, we are able to avoid wrong device selection, and thus reduce cost of whole installation. A thorough analysis of the affection of shading in passive construction through the use of shading elements, is an opportunity to reduce the flow of solar energy in the summer and thereby improve the energy consumption of the building.
The article content the results of study of heat exchanger. Exchanger was made of plastic material: polystyrene. The measurement results were used for efficiency analysis of this type of heat ...exchanger as an alternative to the commonly used heat exchangers made of aluminum.
Photocatalytic water splitting is a promising approach to generating sustainable hydrogen. However, the transport of photoelectrons to the catalyst sites, usually within ps‐to‐ns timescales, is much ...faster than proton delivery (∼μs), which limits the activity. Therefore, the acceleration of ion of protons from water molecules towards the catalytic sites to keep up with the electron transfer rate can significantly promote hydrogen production. The photobasic effect that is the increase in proton affinity upon excitation offers means to achieve this objective. Herein, we design photobasic carbon dots and identify that internal pyridinic N sites are intrinsically photobasic. This is supported by steady‐state and ultrafast spectroscopic measurements that demonstrate proton ion within a few picoseconds of excitation. Furthermore, we show that in water, they form a unique four‐level lasing scheme with optical gain and stimulated emission. The latter competes with photocatalysis, revealing a rather unique mechanism for efficiency loss, such that the stimulated emission can act as a toggle for photocatalytic activity. This provides additional means of controlling the photocatalytic process and helps the rational design of photocatalytic materials.
Pyridinic nitrogen‐containing carbon dots may a proton from the neighbouring water molecules (the so‐called photobasic effect) at the excited state, leading to the significant promotion of photocatalytic performance. Moreover, due to the four‐level energy diagram, the protonated carbon dot shows a net optical gain at the excited state, leading to stimulated emission, revealing a unique competitive mechanism for photocatalytic hydrogen generation.
Impella is a percutaneous mechanical circulatory support device for treatment of cardiogenic shock (CS) and high-risk percutaneous coronary interventions (HR-PCIs). IMPELLA-PL is a national ...retrospective registry of Impella-treated CS and HR-PCI patients in 20 Polish interventional cardiological centers, conducted from January 2014 until December 2021.
We aimed to determine the efficacy and safety of Impella using real-world data from IMPELLA-PL and compare these with other registries.
IMPELLA-PL data were analyzed to determine primary endpoints: in-hospital mortality and rates of mortality and major adverse cardiovascular and cerebrovascular events (MACCE) at 12 months post-discharge.
Of 308 patients, 18% had CS and 82% underwent HR-PCI. In-hospital mortality rates were 76.4% and 8.3% in the CS and HR-PCI groups, respectively. The 12-month mortality rates were 80.0% and 18.2%, and post-discharge MACCE rates were 9.1% and 22.5%, respectively. Any access site bleeding occurred in 30.9% of CS patients and 14.6% of HR-PCI patients, limb ischemia in 12.7% and 2.4%, and hemolysis in 10.9% and 1.6%, respectively.
Impella is safe and effective during HR-PCIs, in accordance with previous registry analyses. The risk profile and mortality in CS patients were higher than in other registries, and the potential benefits of Impella in CS require investigation.
Hemangioma is the most common primary tumor of the spine. Pregnancy is a risk factor increasing the possibility of disclosure or exacerbation of symptoms of spinal hemangioma. This paper presents a ...case of 32-year-old woman with hemangioma of Th6 vertebrae, which was revealed by paresis of the lower limbs and sphincters dysfunction at 34 weeks gestation. Pregnancy has ended with a cesarean section. Then posterolateral thoracotomy and removal of hemangioma were performed. Spinal cord was decompressed and stabilization of the spine with metal implants was carried out. Histological examination discovered cavernous hemangioma weaving. The patient is followed up in the outpatient clinic. Despite the improvement of neurological status--enhancement of the sensory function and development of bladder and rectal sphincter automatism--she did not regain the ability to walk alone.
L'histoire des villes et des cités de l'Occident romain ne doit plus être écrite comme celle d'un déclin progressif entre le Haut-Empire et l'Antiquité tardive. Néanmoins, l'image laissée par ces ...communautés civiques et la cellule administrative fondamentale de l'Empire se trouble progressivement entre les iie et ive siècles. La documentation tardive, peu abondante, souvent de nature juridique ou ecclésiastique et de portée générale, rend compte de la permanence globale de la vie municipale, mais la disparition progressive des donnés épigraphiques ne permet plus de cerner sa diversité et sa richesse. Or, les vestiges archéologiques livrent un tableau contrasté de l'évolution des espaces civiques. Si leur occupation semble se pérenniser sans changement significatif dans quelques grandes villes, ailleurs la dégradation de monuments et de lieux publics ou leur occupation par des activités privées, voire leur abandon pur et simple, signalent des processus de changement dans l'activité civique qui tranchent avec la perception actuelle de la pérennité de la vie des cités. Comment faut-il interpréter cette évolution ? Faut-il y voir le témoignage d'une crise urbaine ou seulement la transformation de la pratique civique et un changement dans l'utilisation des espaces dédiés à la vie de la communauté ? S'agit-il de phénomènes diffus ou localisés ? Afin de fournir des éléments de réponse à ces questions, ce livre fondé sur un bilan mais également sur des découvertes récentes croise les Histoires provinciales, les trajectoires singulières et les destins trasversaux des villes et de l'urbanisme civique en Occident entre le Haut-Empire et l'Antiquité tardive.
Bibliographie Arce, Javier; Asensio, Sebastián F. Ramallo; Blasco, Pilar Diarte ...
Urbanisme civique en temps de crise : les espaces publics d'Hispanie et de l'Occident romain entre les IIe et IVe s,
03/2017
Journal Article
Abad Casal, Lorenzo (1990), «La romanización», Historia de la ciudad de Alicante, vol. 1, Alicante, Patronato Municipal para la Conmemoración del Quinto Centenario de la Ciudad, pp. 119-148. — ...(1993), «Benalúa, Tossal de Manises y el emplazamiento de la ciudad de Lucentum», Lqnt, I, pp. 153-155. Abascal Palazón, Juan Manuel (1982), Vías de comunicación romanas de la provincia de Guadalajara, Guadalajara, Diputación Provincial, Institución Provincial de Cultura Marqués de Santillana. — (1996),...
Remerciements Arce, Javier; Asensio, Sebastián F. Ramallo; Blasco, Pilar Diarte ...
Urbanisme civique en temps de crise : les espaces publics d'Hispanie et de l'Occident romain entre les IIe et IVe s,
03/2017
Journal Article
Nos remerciements s’adressent en premier lieu aux contributeurs de ce livre qui ont généreusement répondu à notre demande pour participer à ce projet d’étude des espaces civiques dans les provinces ...romaines d’Occident. Nous tenons également à remercier tous les chercheurs, dont les travaux n’apparaissent pas dans ces pages, mais qui nous ont régulièrement fait part de leurs réflexions au cours des différents moments qui nous ont réunis pour réfléchir ensemble à cette question du devenir des e...
Abréviations des sources Arce, Javier; Asensio, Sebastián F. Ramallo; Blasco, Pilar Diarte ...
Urbanisme civique en temps de crise : les espaces publics d'Hispanie et de l'Occident romain entre les IIe et IVe s,
03/2017
Journal Article
AE = Année épigraphique, Paris, 1888-. Cic. Ad fam. = Beaujeu, Jean (1996), Cicéron, correspondance (éd. et trad. française), t. XI, Paris, Les belles Lettres. CIL = Corpus Inscriptionum Latinarum, ...Berlin, 1869-. CIL, II = Hübner, Emil (éd.), Corpus Inscriptionum Latinarum, II. Inscriptiones Hispaniae Latinae, Berlin, 1869. CIL, II2/5 = Stylow, Armin U., Atienza Páez, Rafael, González Fernández, Julián, González Román, Cristobal, Pastor Muñoz, Mauricio, Rodríguez Oliva, Pedro (éds.), Corpus I...
