Search

Background: Florida, which led the country in terms of its number of opioid-prescribing physicians, was unique during the height of the opioid epidemic because of its lax prescribing laws and high number of unregulated pain clinics. Here, we address differences in the distribution rates of oxycodone and hydrocodone across Florida counties during the peak years of the opioid epidemic using an under-utilized database. Methods: The Washington Post and the United States Drug Enforcement Administration's Automation of Reports and Consolidated Orders System (ARCOS) databases provided longitudinal oxycodone and hydrocodone distribution data in grams per county (2006–2014) and state (2006–2021). Grams of oxycodone and hydrocodone were converted into morphine milligram equivalents (MMEs). Results: There was a steep increase in oxycodone from 2006 to 2010, with a subsequent decline. In 2010, the average MME per person across Florida was 729.4, a 120.6% increase from 2006. The three counties with the highest MMEs per person in 2010 were Hillsborough (2271.3), Hernando (1915.3), and Broward (1726.9), and they were significantly (p < 0.05) elevated relative to the average county. Conclusions: The data demonstrated pronounced differences in opioid distribution, particularly oxycodone, between Florida counties during the height of the opioid epidemic. Legislative action taken between 2009 and 2011 aligns with the considerable decline in opioid distribution after 2010. [ABSTRACT FROM AUTHOR]

Copyright of Cuadernos del Centro de Estudios de Diseño y Comunicación is the property of Cuadernos del Centro de Estudios de Diseno y Comunicacion and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background: Florida, which led the country in terms of its number of opioid-prescribing physicians, was unique during the height of the opioid epidemic because of its lax prescribing laws and high number of unregulated pain clinics. Here, we address differences in the distribution rates of oxycodone and hydrocodone across Florida counties during the peak years of the opioid epidemic using an under-utilized database. Methods: The Washington Post and the United States Drug Enforcement Administration’s Automation of Reports and Consolidated Orders System (ARCOS) databases provided longitudinal oxycodone and hydrocodone distribution data in grams per county (2006–2014) and state (2006–2021). Grams of oxycodone and hydrocodone were converted into morphine milligram equivalents (MMEs). Results: There was a steep increase in oxycodone from 2006 to 2010, with a subsequent decline. In 2010, the average MME per person across Florida was 729.4, a 120.6% increase from 2006. The three counties with the highest MMEs per person in 2010 were Hillsborough (2271.3), Hernando (1915.3), and Broward (1726.9), and they were significantly (p < 0.05) elevated relative to the average county. Conclusions: The data demonstrated pronounced differences in opioid distribution, particularly oxycodone, between Florida counties during the height of the opioid epidemic. Legislative action taken between 2009 and 2011 aligns with the considerable decline in opioid distribution after 2010.

The purpose of this article is to introduce and examine the story of Russotürk, which was established as a venture capital company that was established in 1924 with the collaboration of the Soviet Union and Turkey in Istanbul. Russotürk helped the Soviet Union during the 1920s to overcome the obstacles that were put on export goods in the foreign trade of the Russians as it was a joint-stock company. One of the most important tasks undertaken by the company is to promote and increase the export of Soviet goods in the Middle East and Balkan countries such as Turkey, Egypt, Syria, Palestine, and Greece, in which the Soviet Trade Representatives were not allowed to operate. Russotürk, which was trying to attract the attention of the Turkish bourgeoisie, could not prevent the company, with which they were dealing joint business Karadeniz firm, to become partners with White Russians. Thus, the White Russians were effective in the foreign trade of the Soviets until Russotürk was liquidated. Selling Soviet export goods below the average world prices and issuing import licenses in return are among the most criticized issues that the company encountered. Russotürk constantly competed with Arcos and other Soviet economic institutions. The most obvious indication of this competitive situation was the sales of the Soviet agricultural tools in the Turkish market. The founding officials of Russotürk, which had eventful and nontrivial establishment and closure, were tried in the Soviet courts. Russotürk completed its duty and ended its existence when 1927 trade agreement was signed among the Soviet Union and Turkey. [ABSTRACT FROM AUTHOR]

El trabajo tiene como objetivo determinar las características dermatoglíficas de los esgrimistas de iniciación de la E IDE “Cerro Pelado” de Camagüey. Se les determinó los decadactilares a 156 atletas, los cuales se comparan con los resultados de Rivero de la Calle, M. (1984), y se determinan sus características dermatoglíficas. Se demuestra que en la población cubana las proporciones de los diferentes diseños no están afectadas por las características étnicas, y que la proporción de arcos, presillas y verticilos en los deportistas, aun encontrándose en la fase de iniciación, presentan características que las diferencian de la población cubana normal.

Resumen: Objetivo: Determinar si existen diferencias en el tamaño de los arcos de NiTi en los calibres 0.012, 0.014 y 0.016 de tres marcas comerciales. Material y métodos: Se utilizaron 180 arcos de NiTi de las marcas American Orthodontics, TD Orthodontics y OrthoPremium. La estadística descriptiva, la ANOVA y el Post Hoc se realizaron en el programa SPSS 18. Resultados: los arcos de American Orthodontics presentaron diferencias estadísticas significativas en la parte anterior y posterior. En los arcos superiores de TD Orthodontics se encontró contracción en el calibre 0.016. En los arcos superiores OrthoPremium presento una contracción en la parte anterior y en el arco inferior de los 10 a los 40mm. Al comparar las tres marcas se encontraron diferencias estadísticas significativas (p

En este artículo se traduce y comenta un manuscrito persa sin fecha sobre el tiro con arco titulado Izá (Revelación), escrito por Tāher Māwarā al-Nahri. Las referencias internas sugieren que algunas partes del texto fueron escritas en épocas tempranas. El autor, Tāher Māwarā al-Nahri, es actualmente desconocido y las fechas de su nacimiento y muerte son inciertas. El autor presenta sus argumentos, y a sí mismo, con seguridad, y está convencido de la corrección de sus enseñanzas magistrales. Este maestro, Ja’far Māwarā al-Nahri, es igualmente desconocido actualmente, aunque el epíteto, Māwarā al-Nahri, aplicado a ambos, significa «desde más allá del río». Este epíteto sugiere que provenían de Transoxania o fueron descendientes de personas de esa zona. Por tanto, es posible que este manual sea el único que ha sobrevivido en relación a las tradiciones de tiro con arco de Asia Central.

In this work, a study of the variation of the parameters of structures for curved roofs was carried out in order to evaluate changes in the rate of steel consumption. Several models have been designed with different geometries and bonding conditions. At first, these models were divided into three groups or structural systems, in order to determine the most efficient from the mass point of view of the structure. Then, the group that presented the best performance was analyzed with a larger amount of data. Structural design was performed using the STRAP® software and based on the requirements of the technical standard ABNT NBR 8800: 2008. Calculating the models, it has been found that the steel rate can vary greatly from one geometry to another and, in the same system, it varies considerably with respect to span and spacing between porticos. For certain support conditions and a certain span, it was observed that the use of small spacing between porticos in order to decrease the load on each curved frame can lead to high steel rates. It has been found that this phenomenon occurs due to the limitation of the slenderness of compressed members. On the other hand, large spacing results in large surrounding areas that, in turn, require larger sections to resist soliciting stresses. Thus, there is an intermediate or optimal spacing that offers a lower rate of material consumption, allowing for the elaboration of more economical structural projects.

Copyright of Journal of Modern Turkish History Studies / Çagdas Türkiye Tarihi Arastirmalari Dergisi is the property of Journal of Modern Turkish History Studies and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Los arcos que podemos mirar en la arquitectura barroca de la Nueva España muchas veces tienen formas tan variadas y ricas que dejan en un observador cuidadoso la impresión de estar mirando cortinas talladas en piedra. Este ensayo es precisamente una invitación a reflexionar acerca de la posibilidad de que la intención de los autores, patronos y propietarios haya sido esa, es decir, representar cortinajes. Las cortinas, los mantos y los doseles tuvieron una gran importancia desde el punto de vista simbólico, pues son representaciones del cielo y, desde el punto de vista formal, cumplen con los principios de movimiento, lujo, riqueza, dramatismo y teatralidad del arte barroco.

The advanced technology of the new photogrammetric systems, whose progressive improvements could be due to both better resolution of the new cameras and the recent development of sophisticated interpolation algorithms, permits nowadays register not only the general aspect of the building architecture plan and elevations but also, learning in detail the geometry of the parts that integrate the building, and more significantly, the main elements of its structure. In fact, it has a great interest in many areas, and specially in masonry structures, where stability analysis require detailed information about the structural joints of the materials that set the element as well as the specific geometry of the junction that appears between the contact of one block with another. In this work, we demonstrate that a complex photogrammetry technique can be used as a geometric base to analyze masonry structures. The San Millan de Segovia's church is used as an example of structure for the study. This study addresses the different parts of the process, from the photogrammetric lifting to the simplification processes used for implementing this procedure automatically to any type of structure, pointing out the operational simplicity that this technique allows. Resumen La precisión de los nuevos sistemas de registro fotogramétrico, cuya progresiva mejora puede atribuirse tanto a la elevada resolución de las cámaras modernas como al reciente desarrollo de sofisticados algoritmos de interpolación, permite en la actualidad registrar no solamente las trazas generales de la planta y los alzados de un edificio sino, además, conocer en detalle la geometría de las piezas que lo componen, y muy señaladamente de los elementos que forman su estructura. Este hecho es de gran interés en muchos campos, y especialmente en el ámbito de las estructuras de fábrica, ya que los análisis de estabilidad de éstas precisan (al menos cuando se pretende incorporar al estudio el comportamiento local) de información detallada sobre la articulación de los materiales que las componen: trabas, aparejos o geometrías específicas de los lechos en los que unas piezas entran en contacto con otras. El presente trabajo desarrolla un caso concreto, el de la iglesia de San Millán de Segovia, un edificio en el que el levantamiento fotogramétrico complejo se ha empleado como base geométrica para el análisis de la estructura de fábrica. En este estudio se desarrollan las distintas fases del proceso, desde el levantamiento hasta los procesos de simplificación geométrica necesarios para poder implementar cualquier tipo de análisis estructural de forma automática, poniendo el énfasis en las facilidades operativas que posibilita esta técnica.

This article displays the structure of the Soviet Union's cement sales to Turkey in the early Turkish Republican era. Import of cement, which had been one of the commodities in the foreign trade between the Ottoman and Russian Empires, descended to Turkey and the Soviet Union. During the imperial period foreign trade was conducted on the basis of free trade, however, as the Soviet Union monopolized foreign trade in the following period and she established various institutions within Turkey, it continued to be carried out through new state trade institutions. Arcos, Russoturk and the Transcaucasia Trade Organization were the most important ones among the institutions that imported cement to Turkey. The majority of the Soviet cement was sold through Arcos, while Egypt, Syria, Palestine and Greece were provisioned through Istanbul. Although, it seems like a market where big profits were made, the Soviet Union faced great difficulties in exporting cement to Turkey and suffered a loss. Turkey implied high tariff rates on cement import, in the second half of the 1920s, in order to protect its cement production. Moreover, cement import was only permitted by the Council of Ministers. In this regard, not only the organizational deficiencies of the institutions of the Soviet Union, but also the precautions that the Turkish governments influenced the cement trade between the two countries. [ABSTRACT FROM AUTHOR]

El principio generador de la madera laminada establece que piezas aserradas, débiles y pequeñas, al unirse con adhesivos artificiales, conforman elementos más grandes, con propiedades físico-mecánicas superiores a las de la misma especie maderable. En esta investigación se analiza la aplicación de la madera laminada del Pinus caribaea Morelet, var. hondurensis; cultivado en la Orinoquia venezolana, para fabricar sistemas estáticos curvos, dentro de procedimientos edificatorios en construcciones ecológicas y sustentables. El objetivo general propone definir un modelo estructural de arcos que simplifique las labores de producción, transporte, pre-ensamblado, montaje, aprovechamiento, transformabilidad, deconstrucción y reciclaje; que justifique los principios de desarrollo tecnológico ecosustentable basados en las innovaciones tecnológicas de la madera laminada de pino Caribe. La metodología empleada permitió analizar comparativamente y describir los predimensionamientos del peralte de distintos componentes estructurales portantes, que responden eficientemente a esfuerzos de flexo-compresión, configurados a partir de los diagramas de momentos flexionantes de vigas rectas simplemente apoyadas y empotradas y son geométricamente análogos a sistemas de arcos bi o triarticulados. Entre las conclusiones se determina que la arquitectura ecosustentable queda definida como el conjunto de medidas que aportan soluciones constructivas que no dañan el medio ambiente; que emplea, además, materiales naturales renovables, respeta los ecosistemas, construye sin desperdicios; que deconstruye y recicla, sin demoler ni generar escombros. Este artículo queda incluido en la línea de Investigación: Innovación Tecnológica como Proceso; sub-línea: Asimilación y Dominio Tecnológico; Postgrado de Gestión de Investigación y Desarrollo - Facultad de Ciencias Económicas y Sociales de la Universidad Central de Venezuela. Palabras clave: Arcos, arquitectura ecosustentable, bosques de la Orinoquia, madera laminada, pino Caribe. Mots-clés: arches, architecture éco-durable, forêts de l'Orénoque, bois stratifié, pin Caraïbe

This study aimed to establish three-dimensional finite element models of micro-implants-lingual straight wire appliance and to investigate the effects of different wire patterns on the initial displacement of the maxillary anterior teeth and the stress of the periodontal ligament and tooth root during retracting maxillary anterior teeth in lingual orthodontics. A three-dimensional geometric models of maxilla with maxillary dentition was established using Cone-beam CT scan. Three types of maxilla models including microimplants and Duet-Slot Lingual Bracket appliance with three different arch wires (model A: 0.016 inch ' 0.022 inch stainless steel square wire; modelB: 0.016 inch stainless steel round wire; model C: double wire of 0.016 inch ' 0.022 inch stainless steel square wire + anterior teeth 0.016 inch stainless steel round wire) were assembled by Unigraphics NX 8.5 software. The labial intrusion force and lingual retraction force were simulatively loaded to obtain initial displacement of the anterior teeth and the stresses of each tooth root and periodontal ligament, using three-dimensional finite element calculation software Ansys Workbench 15. The initial displacement of the lateral incisors was close to the bodily movement; and central incisors and lateral incisors slightly extruded. Compared with group A and group C, canine teeth appeared obviously horizontal "arched effect" by crown labial tipping in group B. The stress distribution of the tooth root and periodontal ligament was minimal and uniform in the group C. The 0.016 ' 0.022- in stainless steel rectangular wire combined with 0.016- in stainless steel round wire used in the anterior teeth can better control the torque of the maxillary anterior teeth for space close in lingual orthodontics. Moreover, the stress distribution of tooth root and periodontal ligament is even, which is difficult to damage the periodontal ligament or result in external resorption of tooth root. [ABSTRACT FROM AUTHOR]

A simulação consistente de processos de falha progressiva e colapso estrutural ainda é um problema aberto de grande interesse para a engenharia. Dentre as teorias que são capazes de modelar de alguma forma tal classe de problemas, a mecânica do dano contínuo é a maisrecente. Entretanto, um dos gargalos que ainda persistem é quando nas simulações numéricas a estrutura passa a apresentar o fenômenode localização de deformações, com consequente dependência dos resultados sobre a malha empregada. Para sanar este problema diversosmétodos ditos de regularização foram desenvolvidos. Todavia, apesar de eficazes, estes métodos podem inserir um grau de complexidadesignificativo nas abordagens numéricas. Neste trabalho propõe-se uma metodologia simplificada para análise estrutural não linear de pórticose arcos por meio da localização prévia dos fenômenos inelásticos em rótulas, posicionadas nas extremidades dos elementos finitos de barra earco. Desta forma é possível contornar a dependência de malha e reproduzir de forma satisfatória problemas reais, como mostram os exemplos de estruturas de concreto armado reunidos no fim deste artigo.

The origin and evolution of Bambuí Basin has been a matter of debate, in much intensified by the recent exploratory efforts carried out by public and private companies looking for natural gas. In the southeastern portion of the basin there are rare opportunities to access the contact between the sedimentary rocks and its basement, whose characteristics are crucial to understanding the processes of basin installation and the early sedimentation. The analysis of drill cores allowed us to describe the lowermost Bambuí Group in Arcos (MG) region, including its basement. The sampled section displays as basement an archean granodiorite (ca. 2.8 – 2.9 Ga), fractured at the time of sedimentation. The Bambuí Group basal unit is dm-thick, massive lodgment tillite. Grains of zircon separated from the tillite matrix were dated and show a main age peak at ca. 2.8 Ga, indicating provenance from the own basement. On the tillite rests an impure limestone that passes gradually to a muddy unit, in a retrogradational filling trend. Terrigenous fragments in the impure limestone suggests that the basement has continued to be a source of sediments in the bottom of the section. The pelitic rocks that occurs to the top has a litochemical signature compatible with acidic source rocks, and shows Sm-Nd model ages of 1.7 Ga. These data suggests that rocks from the Brasília Belt have acted as a source for the pelitic rocks, supporting the interpretation of a foreland set for the basin.

En este trabajo se enuncian los teoremas de rotura y sus corolarios para aplicarlos al cálculo en rotura de arcos. Después de analizar la teoría de arcos, se estudia el significado de la línea de presiones y de la línea de empujes desde el punto de vista del cálculo a rotura.

El artículo aborda el estudio de la evolución constructiva de un puente de origen medieval, utilizando casi exclusivamente el método estratigráfico tanto en el análisis del subsuelo como en los paramentos de la estructura. El estudio ha permitido documentar la interacción entre el puente y el río con las sucesivas destrucciones y recomposiciones de la estructura, así como las mejoras que cada reparación aportaba respecto de la situación anterior.

En este artículo se analizan las aportaciones de Carlos Fernández Casado al cálculo de estructuras. Tras exponer el contexto internacional, se describen sus contribuciones y su relación con la formación que recibió en la Escuela de Ingenieros de Caminos de Madrid. Se finaliza indicando algunos de los méritos más interesantes de su obra escrita.

Objectives: To compare the frictional resistance of orthodontic self-ligating and conventionally ligated archwire brackets in vivo. Materials and methods: The electronic databases of Medline and PubMed were searched. In vivo studies, split-mouth investigations that addressed the archwires' frictional resistance of self-ligating and conventional brackets were selected and reviewed. Moreover, a secondary search was conducted examining the reference list of each article of the original search so as to identify any article that met our inclusion criteria, but may have been lost in the initial electronic search. Results: The initial electronic search resulted in a total of 112 articles and three additional articles obtained through a manual search of the reference list. After applying the selection criteria, only 10 studies were included in this review. Conclusion: Self-ligating brackets produce less friction in aligned dental arches when used with round archwires. Nevertheless, there is no scientific proof that self-ligating brackets produce less friction with rectangular archwires in severely malpositioned teeth. [ABSTRACT FROM AUTHOR]

This paper mainly addresses the construction methods used to build several iconical Bridges. Firstly, a short introductory enumeration of most used construction methods for Spanish Bridges is presented as a starting point. Secondly three multi-construction- methods-Bridges are briefly presented, those being: The Tamaraceite Bridge (1994, Las Palmas de G.C.), the Tercer Milenio Bridge (2008, Zaragoza) and the Railway Bridge over Ulla River Stuary (2015, between Catoira and Rianxo, respectively at Pontevedra and A Coruna Provinces). [ABSTRACT FROM AUTHOR]

The construction of reinforced concrete arches from 1930 to nowdays is shown. Reinforced concrete material is appropriate for the construction of small arches, from a 30 m span initially designed by Ribera to modern arches with span lengths greater than 300 m like the bridge over the Almonte river reaching the Alcantara reservoir. The great evolution in the construction procedures of arches (key features in the construction of arches) has allowed the construction of all modern arch bridges. During the years 60 and 70 of last century, it was thought that prestressed concrete technology would produce the extinction of concrete arches but reality has shown the strength of concrete arches technology. [ABSTRACT FROM AUTHOR]

The engineering of infrastructures is one of the engineering activities that makes the transformation of nature more evident as these act upon the land and the works are inserted within the geographic medium. The majority of what may be considered as modern bridge structures and materials were developed in the 19th century and 20th century engineers continued on with this same form of action, though gradually dividing up into the two areas of construction company engineers and project engineers. The 21st century is in its early stages and it is difficult to speculate on the form that engineers may take throughout this century, though the appearance of the computer in the second half of the 20th century has given rise to almost limitless possibilities in the study of structures and their optimization. [ABSTRACT FROM AUTHOR]

Throughout the history of all human activity there have been events and people that have changed the course of these activities. In the history of engineering and in the history of bridges in particular, evolution has similarly played a very important part on account of the many engineers that have designed and built bridges. The first period in the history of bridges, that of stone and wooden bridges, concluded at the end of the 18th century on the advent of the first iron bridge. In this, the construction of bridges becomes part of the art of building, incorporating both engineering and architecture. [ABSTRACT FROM AUTHOR]

Con el objeto de establecer características morfológicas, funcionales y genéticas que sirvan de criterio para la selección de nuevas generaciones de atletas para el pentatlón militar, fueron valorados 6 deportistas masculinos miembros de la Selección Colombia que participaron en el 56º Campeonato Mundial de Pentatlón Militar, realizado en el año 2009 en Munich, Alemania, y pertenecientes a la Escuela Militar de Cadetes “General José María Córdova”. n el estudio se evaluaron variables morfológicas, se calcularon los valores del somatotipo (Carter, 1996), la potencia de los miembros inferiores se estableció mediante saltos verticales con y sin impulso de brazos, la capacidad funcional se determinó mediante trabajo en banda para lo cual se empleó el protocolo modificado de Bruce y el analizador de gases expirados marca Cortex Metalyzer 3B. En la recolección y análisis de los dibujos dactilares se utilizó el protocolo de Cummins y Midlo (1942). La edad promedio de los participantes fue de 23,7±3,2 años. Los valores para la talla fueron de 173,7±8,8 cm, el somatotipo predominante se clasificó como Meso-ectomórfico, el VO2Máx alcanzó 63,3 ± 3,8 ml/min/kg; la dermatoglifia dactilar se caracterizó en relación con los indicadores cuantitativos por una mayor presencia de presillas 8,33±1,5, seguida por los verticilos 1,50±1,6 y poca presencia de arcos. En lo que respecta a indicadores cualitativos, se encontraron los siguientes valores: D10=11,3 ± 1,86; SCTL=131 ± 48,8, con fórmulas digitales de 10L=16,7%; AL=16,7%; LW=66,7%.

En el trabajo en cuestión se trata de indicar que el libro de danzas que escribiera Juan Ignacio de Iztieta trasciende el hecho coreográfico y se dirige, fundamentalmente, a ser una exposición, como lengua, la historia y otras, alineada en la defensa de los Fueros. Prueba de ello son algunas contradicciones coreográficas y la crítica general que mantiene en su libro ante la actitud de abandono para con la personalidad vasca de la provincia de Guipúzcoa.

In the Laboratory of physics of the plasma of the Universidad Nacional de Colombia of Manizales (Colombia) an industrial reactor has been constructed, with the purpose of covering pieces of the toolbox of the machineries to improve its performance and life utility. The technical variants are based on the auxiliary equipment. One of them is the system tree carries samples that must rotate the objects to process to obtain the homogeneity of the covering in all the pieces, in a movement of transfering and planetary rotation, with a speed that can be controlled according to the type of sample and of covering that is desired to make to eliminate in a high percentage the own micro-drops of the technique. An important factor in the design of the turn system is torque of the rotor of the used motor, which depends on the weight of the tree, of the pieces to cover, the friction between the gears and of these with the trays. With this aim I implement a system made up of you connect electronic (speed controller) and connect mechanics (reducers and pinions set). This way the speed of rotation between 0 and 60 rpms can be varied. [ABSTRACT FROM AUTHOR]

The summer phytoplankton population in the Arcos reservoir (Spain), an oligotrophic/mesotrophic waterbody, was dominated by the cyanobacterium Aphanizomenon ovalisporum , accompanied by Planktothrix cf. agardhii and smaller proportions of other cyanobacterial species. The bloom remained for approximately 1 month in the summer of 2004. The Arcos reservoir had moderate conductivity, up to 1756?µS?cm -1 , and relatively high nutrient concentrations. Planktonic biomass collected during the bloom period was found to be toxic by the Artemia salina bioassay. Analytical procedures based on high-performance liquid chromatography (HPLC) indicated the absence of microcystins and anatoxin-a but clearly demonstrated the presence of cylindrospermopsin (CYN), suggesting that CYN from Aphanizomenon ovalisporum was the compound responsible for the toxicity in the bioassay. Measurements indicate that up to 9.4?µg CYN?l -1 were present in the sestonic fraction. This is the first report of high concentrations of this cyanotoxin in European waters and the first known instance of a massive bloom of the cyanobacterium Aphanizomenon ovalisporum in Spain. [ABSTRACT FROM AUTHOR]

Este trabajo describe las patologías presentadas, el estudio completo del problema, el proyecto y reparación estructural de un conjunto de 21 bóvedas sheed, de la cubierta del depósito de materiales y talleres de la fábrica de Portland de ANCAP, Ciudad de Minas, República Oriental del Uruguay. Las patologías consistían en desprendimientos del material cerámico, produciéndose después de cada lluvia verdaderas “inundaciones” dentro de los locales y se verificaron importantes deformaciones en la cubierta, con riesgo real de colapso. Luego de un exhaustivo estudio, se diagnosticaron las causas de los problemas, y se proyectó y ejecutó una reparación que básicamente consistió en volver las bóvedas a su posición original mediante apuntalamiento con andamios tubulares, y la construcción de arcos de rigidización de hormigón.