Search

The primary ground support used in Australian underground coal mines is a rebar rock bolt anchored to the rock mass using polyester resin capsules. The key objective of this research project was to benchmark different types of Australian rockbolt resin capsules, including relatively new formulations. Laboratory test methods were developed based on previous studies conducted in South Africa and subsequently at the University of Wollongong, which used 1.8 m JX bolts for installation in internally threaded steel pipes that simulated the borehole. The encapsulated bolts were cut into 80 mm long sections for push testing to obtain around 20 data points from each bolt. Different resin formulation variables were tested; these included three types of limestone fillers and two types of catalyst. The load transfer capacity ofdifferent resins were determined by evaluating the bond strength, peak strength and area under the push test curve. Significant variation in load transfer capacity was found along the length of all 1.8 m bolts tested. The load transfer capacity and its variations along the bolt length were evaluated to be a characteristic of the type of resin formulation tested. Some resin formulations produced upto 20% higher load transfer capacity with better consistency along the length of the bolt. Results from more than 300 push tests were used to assess and validate this study. The findings from this detailed research project can be used for a better understanding of the ground support performance of different Australian resin capsules.

Continuous rock cutting technology is steadily advancing, with the development of undercutting-disc systems for hard rock applications progressing to the commercial prototype stage. Building on research supported by ACARP that investigates the potential for this technology to be applied to surface coal mining for overburden removal, an economic evaluation is presented to assess potential costs and benefits. A case study deposit was utilised to examine various mining fleets based on a boom-style cutting machine, including comparison with a conventional drill/blast operation. Several material transport systems were considered: haul trucks, conveyors, and hybrid systems incorporating de-coupled tucks with hopper-style transfer stations. A key finding is that the break-and-load Operating Cost (Opex) for the cutting systems is higher in all cases for this deposit scenario than the baseline case (drill/blast/shovel), by 50% or more. The results also indicate that the haulage Opex for the cutting systems varies considerably, depending on the transport method. Direct truck haulage of cut material has higher Opex than the baseline system, due to the larger fleet requirements and increased loading duration, whereas a conveyor transport system provides a more cost-effective haulage solution compared to the baseline. The analysis further suggests that whilst the capital and operating costs on a per unit basis ($/bcm TMM) may be higher for a cutting system, when compared to traditional mining methods however, there are significant benefits that are unique to a cutting system that can indeed result in a better overall economic outcome, depending on the specific nature of the deposit and various operational constraints and opportunities. Such benefits include direct value offered by the potential for steeper pit slopes and increased coal recovery, as well as indirect yet tangible value through elimination of blasting-related impacts (e.g. fumes, noise and vibration), pro

Despite the decades where application of rock bolts and tendons have been the main supporting system for ground in both hard and soft rock formations in mines and tunnels, there remains significant uncertainty about the behaviour and performance of these easy-to-use technologies. The importance of effective support is paramount with regard to ground seismicity and dynamic loading cause by outburst, rock burst and rock blasting activities. The evaluation and assessment of the axial loading and shear behaviour of rock bolts enables the design of a credible methodology for effective and sound ground reinforcement. This paper deals mainly with the development of a pull testing rig that is used for the testing of cable bolts and tendons under both static and dynamic conditions. The dynamic test was carried out by the drop hammer impact test. It was found that a 30 % greater pulling force is needed for the pull testing of cables statically in comparison with the dynamic impact test, this being in agreement with past numerical studies.

A collaborative project was undertaken to obtain an understanding of the goaf gas distribution profile near the tailgate area of the longwall goaf under 2 gateroad and 3 gateroad mining conditions for improved explosion risk management in gassy mines. Extensive computational fluid dynamics (CFD) modelling studies were conducted and calibrated using operational longwall goaf gas distribution data. The results of the simulations indicated that there is a significant difference in the spread of explosive fringe (or close to explosive range) gas distribution profiles near the tailgate side of the longwall goaf under 2 gateroad and 3 gateroad conditions, i.e. a significant increase in the spread of explosive fringe zone under 3 gateroad conditions. The results indicated that under 3 gateroad conditions, explosive fringe gas distribution extends into the middle roadway between the longwall panels thereby significantly increasing the area of explosive fringe distribution and likely relative increase in explosion risk. Results indicate that the explosive fringe area in the middle roadway can extend up to two pillars behind the longwall face position. The details and results of various modelling investigations including recommended strategies for gas control and minimisation of the spread of explosive fringe gas distribution in the longwall goaf are presented in this paper.

The re-identification of mine dust lung diseases in coal mine workers has prompted much work to be done to improve exposure monitoring and health surveillance in Australia. It is now recognised to be inadequate to talk about respirable dust in general terms, because size, shape and chemical content can affect the adverse consequences of excessive exposure. The Minerals Industry Safety and Health Centre within the Sustainable Minerals Institute undertook a gap analysis to identify needs for further research into respirable dust exposure monitoring and control. One such project is characterising the dust present in different mining atmospheres to understand the contribution of the chemical components, particle sizes and shape to the incidence of mine dust lung diseases in Australian mine workers. Exposure standards were first set in British Coal and have subsequently been adopted by the US and Australia. This paper starts with a discussion of the British Pneumoconiosis Field Research data collection methodology and assumptions on which those initial standards were based. From there the discussion moves into the application of these standards to the US and Australia, the history of revisions to the exposure standard and limitations in sampling equipment and radiological diagnosis of disease.

This work presents the results of an investigation on the study of fracture pattern in coal under induced tensile stresses using image processing techniques. Several high-speed recordings captured at 5 kHz and above were examined, and three distinct fracture propagation modes were identified. As the coal tensile strength increases, the fracture behaviour was observed to be a spalling-like rupture in the form of a dominant tensile crack accompanied with multiple large secondary shear fractures that break the test specimen apart into several pieces. Combined localised tensile and shear cracks at intact rock bridges within a coal Brazilian sample (with pre-existing defects) was also observed, indicating a very different failure pattern from that in standard recommendations.

This paper focuses on the experimental study of shear testing of 15.2 mm, 25 t capacity seven wire cables at zero, 30 and 45 degree angles using two different shear testing facilities at the University of Wollongong (UOW) and the University of Southern Queensland (USQ) in Toowoomba. A circular double shear rig MKIV was used for testing cable perpendicular to the sheared joint faces (zero angle of orientation), while testing the cable at 30 and 45 degrees was carried out using a larger size rectangular shaped rig. This study was part of the tri-universities funded ACARP project C27040 awarded jointly to the University of New South Wales, University of Wollongong and University of Southern Queensland. The objective of the experimental testing programme was to provide the essential information for the development of numerical models that included not only the technical parameters but also the behavioural outcomes from various tests with respect to the angles of testing and their effect on the nature of cable failure, be it pure shear, tensile shear or shear tensile, cable pretension and the credibility of the effectiveness of the Barrel and Wedge (B&W) anchorage system were evaluated. Laboratory facilities at both USQ and UOW were used in the study. It was found that increased angle of shear contributes to increased stiffness of the cable in shear with other parameters being equal.

Respirable coal dust is generated during the mechanised mining process and is one of the main occupational health hazards in coal mines. Due to its fine characteristics, it can affect the performance of mining equipment and cause adverse health effects in mine workers. There is a recent focus upon improved dust control measures in Australian mines. This is primarily due to a resurgence in reported cases of coal mine lung dust disease in both NSW and QLD coal mines. New more stringent workplace exposure standards (WES) are currently being introduced for both respirable coal and silica dusts. Considerable research has been carried out in developing coal dust control technologies, and water suppression with added surfactant is one high-level control measure available to coal mines. This paper will review recent dust monitoring results, available control measures and then analyse recent laboratory and field test results for a commercially available surfactant known as DUST KING. These test results will greatly assist mines to consider surfactants as an effective control measure to improve the occupational health of mineworkers.

Pretension plays a critical role in providing active support to control roof sagging and bedding plane slippage in underground coal mines. However, the optimal amount of pretension for cable bolts to achieve effective ground control remains unknown. Applying excessive pretension on cable bolts may cause cable bolt failure. On the other hand, insufficient pretension is ineffective in preventing large roadway deformation and roof fall incidents. This paper investigates the pretension effect on cable bolts at various geological conditions for underground coal mines. A numerical model based on a coal mine in the Western Coalfield, NSW has been developed by considering the variance of in-situ stress, bedding plane and claystone properties. Model results focused on analysing the pretension effect on the cable bolt force distribution and bond failure along the cable bolts. The overall bond failure along the cable bolts at different geological conditions was also analysed with different pretensions. The neutral point, where relative shear movement between the cable bolt and rock mass is zero, is considered as a key position along the cable bolt to describe its loading behaviour. The results suggest that inappropriate high pretension would promote bond failure. This paper is expected to provide a theoretical guidance for applying optimal pretension in the coal mining industry.

The Pike River mine exploded on the 19 November 2010. Thirty-one (31) men were working underground at the time of the explosion and only two men were able to escape. The Pike River Recovery Agency was established in January 2018 to conduct a safe manned re-entry and recovery of the Pike River mine drift to gather evidence to better understand what happened in 2010. SCT Operations Pty Ltd (SCT) have been engaged to assist with the management of strata control hazards as part of the planning and implementation phases of the drift recovery. Initial geotechnical assessments comprised review of available historical geological and geotechnical information to develop a geotechnical baseline report and hazard map to assist with future planning and risk management. A range of controls have been implemented to manage geotechnical risk to acceptable levels and to ensure that adequate levels of inspection, mapping, monitoring, assessment, and review are maintained at all stages of drift recovery. Additionally, 3D FLAC modelling, surface tunnelling simulations and field loading trials have been conducted to support proposed tunnelling through a Rocsil plug located at the top end of the drift to provide access the rock fall area which marks the end of the mandated drift recovery. Given most of the drift had not been physically inspected following the explosion a range of drillhole assessments comprising downhole camera and laser scanning was also conducted to improve understanding of the drift environment both prior to and during re-entry. As part of operational implementation and continuous improvement processes modifications were made to both ground support systems and bolting equipment which significantly improved support cycle installation times. SCT also supplied real-time roof monitoring instrumentation to the site which supplies an almost continuous data feed to the mine control room for interpretation and automatic alerting if Trigger Action Response Plan (TARP)

Mining subsidence has been a major hazard in most underground coal mines, particularly those where designs and practices are based on the wrong assumption of fixed, permanent and nondeteriorating coal pillars. Mining induced subsidence significantly affects mining costs where major surface structures and natural environment need to be protected. Remedial measures to manage damage caused by subsidence can often be very costly with potentially damaging impacts and irreversible consequences. Backfilling and injection of granular materials into the mining induced voids, separated beddings and cracks, as either diluted granular slurry or concrete paste, is widely used to control mine subsidence overseas. Granular grouts and slurries made of mine and power plant wastes and rejects are viable environmental backfill solutions to both ground stability and mine waste management problems. Like concrete paste, the flowing slurry can be categorised as a generally nonlinear frictional viscous cohesive (Bingham Herschel-Bulkley) fluid. The general frictional viscous, cohesive, non-Newtonian fluid model has been applied to concrete flowability problems such as L-box and slump tests. While slump test is used in shallow foundations, L-box test is used in difficult deep foundations. It is designed to measure workability and flowability of tremie pipe concrete as an indirect index measure of concrete viscosity and plastic yield. Tremie pipes are used to control concrete flow rate and minimise bleeding and dilution when placed into deep submerged excavations. Mathematical and experimental models have been developed to not only solve the flow velocity along the L-box channel length as a function of time and distance, but also simulate the flow of the backfill material and demonstrate the detailed process of filling the voids to minimise any further subsidence.

Accurate and timely monitoring of strata stability in underground excavations is a critical activity that forms part of the fundamental daily mine safety processes and is mandated by law to be carried out in all operations. Coal mine strata monitoring includes the use of instrumentation and observations carried out by personnel. Mechanical tell-tales are an instrument widely used throughout the coal mining industry and are used to measure displacement of roof rock horizons. They comprise of either 2 or 4 reading indicators that are connected by stainless steel wires to anchors secured up a purposely drilled hole and require personnel to read them individually and record displacements manually. Prompted by the desire to improve safety and provide a system that could offer continuous monitoring of areas within the mine, without the requirement for manual recording of tell-tale data, Moranbah North Mine (MNM) initiated installation of a remote reading monitoring scheme in 2012. The monitoring system is entirely automated, and the data is automatically collected and transferred to the surface via an optical fibre cable. Alarms are pre-set to defined triggers and alerts are sent out automatically if triggers are reached. The real time data can be accessed anywhere with available internet connections and log on details. Significant amounts of data, previously not accessible, has been recorded and collected since the initial remote reading system was installed. This has provided critical information for support design work, remedial works, and development of accurate Trigger Action Response Plans (TARP). The data is increasingly being used for optimising mine support. Upgrades to the remote reading technology in recent time mean that the available system uses cutting edge technology and can be manipulated to meet different applications. All Anglo American underground metallurgical coal mines within Australia now employ Remote Reading Tell-Tales (RRTTs) in longwal

As mining progresses into deep ore deposits in Australia, geo-hazards such as coal burst and outbursts are becoming a major concern for mine workers. The occurrence of these hazards involved the ejection of coal lumps and sometimes large volumes of hazardous gases such as methane and carbon dioxide. Whilst it is extremely important to de-stress and de-gas the seam and adjacent strata before roadway development, and install competent support systems such as steel mesh and bolt, the last line of protection will be the installation of a protective canopy on the Continuous Miner to shield mine workers from these deadly dynamic impact of coal and rock resulting from a burst or outburst. The aim of this paper is to introduce the design, manufacture, and testing of an innovative protection structure on Continuous Miner in underground coal mines.

The results of extensive hydrogeological investigations in the Bowen, Styx and Galilee Basins are described in this paper. These are coal mining areas with saline groundwater resulting from predominantly marine deposition. Small aquifers occur in Quaternary and Tertiary deposits and within coal measures strata. Tertiary Basalt flows sometimes contain larger aquifers. Mining results in localised groundwater drawdown. Testing has included determination of in situ permeability, pump-out flow rates, salinity and pH values of groundwater. Piezometer monitoring of aquifer drawdown during mining has been completed. Computer modelling and inflow calculations have been used to determine inflow rates during longwall mining. Accurate permeability results are required to obtain design parameters for mine dewatering systems. Mining results in aquifer drawdown, surface subsidence and the formation of open tension cracks. Because significant leakages can occur into underground workings from overlying water bodies within the critical tensile strain zone, extensive modelling has been completed to obtain accurate inflow values. Results indicate that only minor aquifers occur within coal measures strata. The groundwater is generally highly saline and is classified as contaminated. It can only be used for washing coal. The main impact from mining is potential inundation of underground workings from subsided, overlying water bodies. Groundwater drawdown recharges back to original levels following mining.

Ashton Underground Mine (Ashton) is an underground longwall mine located northwest of Singleton in the Hunter Valley of NSW. The mine has so far extracted longwall panels in three seams with mining in a fourth seam planned and each seam progressively deeper than the last. The mining geometry in each of the seams is regular, parallel and either offset or stacked relative to the panels in the seams above. A subsidence line crossing all panels in each seam has been regularly surveyed in three dimensions since the commencement of mining. The high quality data set available from this line provides insight into the mechanics of ground behaviour in a multi-seam environment. This paper presents an update of the observations and interpretation presented in Mills and Wilson (2017) for mining in two seams with the inclusion of results from mining in a third seam. Observations of the characteristics of multi-seam subsidence continue to indicate that although subsidence movements above multi-seam mining are more complex than single seam mining, these movements are nevertheless regular and predictable. In an offset geometry, remote from pillar and goaf edges, tilt and strain levels are similar or lower than single seam levels, despite the greater vertical subsidence, due to the general softening or reduction in shear stiffness of the overburden with each episode of subsidence. At stacked and undercut goaf edges, transient tilts and strains are significantly elevated. Cumulative vertical subsidence after longwall mining in three seams has now reached 5.8m with incremental vertical subsidence increasing as a percentage of incremental mining height with each episode of subsidence. Latent subsidence from near stacked goaf edges is recovered when mining in the seam below. A site-specific methodology developed to forecast subsidence behaviour is allowing measured subsidence effects to be estimated reliably.

Cable bolts as one of the most common means of ground support in surface and underground projects are attracting more attention due to their advantages over more expensive and cumbersome support elements. Thus, newer cables with new configurations and surface properties are emerging on a regular basis. Conventionally, the performance of cable bolts is studied in two main categories of axial and shear load transfer mechanisms. This paper focuses on the former by developing and proposing an experimental plan to cast light on the effect of surface profile on axial performance of cable bolts. Consequently, 15 representative surface profiles were designed and machined on metal base plates using a CNC machine. Later, these plates were used as moulds for casting cylindrical samples of Stratabinder cementitious grout. Three curing times of one day, 7 days, and 28 days were studied under static compression loading. It was observed that the surface roughness of the samples plays a major role in failure as it inhibits free movement of grout metal interface and inflicts end effect as well as introducing stress concentration point. These two drastically reduce the performance of grout and cause tensile crack growth.

Cracking is a primary mode of distress in asphalt pavements that is generally caused due to repeated traffic loadings, exposure to temperature fluctuations, aging or reflection of cracks in underlying layers. Such cracking can readily lead to higher maintenance and rehabilitation costs for pavement infrastructure, hence negatively affecting the economy both directly and indirectly. To prevent excessive cracking, it is important to understand the cracking characteristics of asphalt mixtures for implementation in road, airport and port pavements. This study aims to investigate the effect of loading and temperature on the cracking behaviour of asphalt using the Indirect Tensile Test (IDT), along with high-speed photography analysis techniques. The results indicate that cracking can occur prior to the asphalt reaching its peak strength in the IDT test. Furthermore, it was observed that increasing temperature can cause a decrease in the peak strength of the asphalt samples and change its fracturing behaviour as well.

A new Underground Research Facility (URF) is planned to be constructed in the Rožná Mine, Czech Republic. It is essential to evaluate the feasibility of the current excavation design before the start of the excavation. Numerical simulation using the software FLAC3D was adopted to investigate the stability or the strength-stress ratio of the URF. Laboratory tensile strength and uniaxial compressive strength tests on the rock specimens at various inclinations of the weak planes combined with the Geological Strength Index (GSI) system provide reliable deformation and strength input parameters for the explicit continuum model. The well-known modified Hoek-Brown constitutive model was employed for the numerical evaluation of the URF stability. In situ three-dimensional stress tensors were measured from the field and applied to the model boundaries. Displacement/convergence and distribution patterns of the stress state and strength-stress ratio were analysed. It was found that the current URF layout is on the safe side and the total displacement is minor and acceptable. Locations with potentially low strength-stress ratios were mainly around the roadway-chamber intersections. The current study can provide a valuable reference to similar numerical works since such large-scale numerical simulations are rare, due to the complexity and the time-consuming nature of the study.

This paper presents a study, the design and implementation of the Longwall Remote Operations centre that incorporates all aspects of automation for Longwall and coal clearance systems. Developing the existing Longwall technology strategy and the design of coal transferring conveyors to smart systems incorporating emerging technologies such as artificial intelligence, automation and business strategy development. The design phase of the project is structured to bring together the overall findings of the diagnose phase, business strategic direction, value case and options analysis to develop an overall project that covers people, technology, systems and process for the automated control of the Longwall. As part of this process a draft implementation plan that includes risk and change management, capability transfer and a roadmap for optimisation is included. The site engagement team cooperates closely with the analysis team on collecting real data and analysing data in-depth by considering safety regulation and analysis of the business value case for incorporating any current and proposed automation technologies. The achieved designs introduced the opportunity to incorporate in the future of the mining industry as one of the main pillars of Australia’s economy. A key objective is to remove people, as far as practically possible, from potentially hazardous operational areas through applying remote operations and control concepts. There is a strong value case for this change. In a Longwall operation this change reduced exposure to underground operational hazards by some 50,000 hours per year, add 3 hours per day to operations, and increase cutting rate by 150 tonnes per hour. The strategy and design apply to limited mines and their successful outcomes provides a wide approach and an open discussion platform for the current mining industry and make us propose a new strategy for coal clearance methodology. This paper proposes a practical strategy to revolutionis

Rock mechanical properties (e.g., uniaxial compressive strength or UCS, Young’s modulus, and Poisson’s ratio) are important input parameters for geotechnical assessment and excavation designs. Two common methods used to obtain these parameters are laboratory testing and geophysical logging. The former delivers probably the most reliable results, but can be costly and time-consuming and for a lot of the time it is challenging to source sufficient samples. Alternative ways to better predict rock mechanical properties are needed. In this case study, the XGBoost machine learning algorithm was applied to correlate laboratory and geophysical logging data with the three mechanaical properties of UCS, Young’s modulus, and Poisson’s ratio. The proposed machine learning approach better predicted UCS values with a smaller Mean Absolute Error (MAE) and Root Mean Square Error (RMSE) and a larger R2. Similarly, better results were obtained for the Young’s modulus prediction using the XGBoost algorithm. However, poor correlations existed between the inputs of geophysical and Poisson’s ratio, most likely due to the uncertainties associated with the acquisition of Poisson’s ratio data and the nature of this parameter. This study concluded that a machine learning approach has the potential to predict rock mechanical properties more reliably than the conventional methods, and further study is underway to have more quantitative and detailed analysis with more data inputs and other machina learning models.

This paper discusses how to supply sufficient water to meet industrial water demand. Australia is not running out of water, but water is running out of Australia’s rivers. About 440km3/year of runoff is lost to the sea, and the total water usage is only about 5-6% of the water availability. Australia is one of the most resourceful countries in the world. All industrial water for the coastal areas can be supplied from coastal reservoirs, even the high-quality cooling water for steel making. To supply sufficient water to inland areas, the author has suggested that the Murray-Darling basin’s cotton farms should be relocated to downstream areas near its coastal reservoir, thus the agricultural water demand is fully met and also the environmental flow is increased significantly. Therefore, its existing dams can be used for mining industry. Water pipelines may be needed to pump water from these dams to the mining sites, trains can also transport water bags from ports to inland areas.

Several experiments were carried out to investigate the effect of curing time and water to grout ratio on the ultimate load capacity of fully grouted rock bolts subject to pulling out loads. For this purpose, various samples were cast with water to grout ratios of 30%, 36% and 40 %. Pull-out tests were conducted on samples with different curing times, ranging from 7 to 28 days. Results indicate that the peak value of the pull out load increased as curing time increased. In contrast, increasing water to grout ratio weakens the pulling out resistance of fully grouted rock bolts.

Proceedings of the 2021 Resource Operators Conference. All papers in these proceedings are peer reviewed. ISBN (ebook): 978-1-74128-336-5 ISBN (paperback): 978-1-74128-335-8.

Introduction: The training of human talent in nursing requires the articulation with the health services institutions (IPS, in Spanish) as an essential feature.Objective: To analyze the teaching- service relationship for the train-ing of human talent in nursing in Colombia.Materials and methods:Descriptive study using an elec-tronic survey with structured and semi-structured questions sent to 53 higher education institutions (IES, in spanish). Institutions with nurs-ing programs and teaching service agreements for training practices were included.Results: 48 nursing programs from private (60.4 %) and public (39.6 %) IESparticipated in this study. 62.5 % of these did not have an IPS in charge of providing their own health services for the development of training prac-tices. This situation leads to the struc-turing of teaching service agreements and payments in money or services by IES. The main forms of compensa-tion were human resource training, continuing education, and technolog-ical endowment.Conclusions:The teaching-service integration of public and private universities with differ-ent institutions is necessary for the comprehensive training of nursing professionals. IES are forced to offer compensation activities according to their capacity and assessment of joint needs. A low percentage have their own IPS, whose majority are private institutions. The teaching-service rela-tionship improves care, education, patient and family orientation and credibility due to the presence of the academy in health care units, Introdução: para a formação do talento humano em enfermagem, é essencial articular-se com as insti-tuições prestadoras de serviços de saúde (IPS).Objetivo: analisar a relação ensino- serviço para a formação do talento humano em enfermagem na Colômbia.Materiais e métodos:estudo descritivo, o qual utilizou enquete eletrônica com perguntas estruturadas e semiestruturadas enviadas a 53 Insti-tuições de Ensino Superior (IES). Foram incluídas instituições com programas de enfermagem e convênios docentes para as práticas de formação.Resultados:participaram 48 programas de enfermagem de IESprivadas (60,4 %) e públicas (39,6 %). 62,5 % não contavam com IPS própria para o desenvolvimento de estágios em saúde; essa situação leva à estrutura-ção de convênios de prestação de servi-ços docentes e pagamentos em dinhei-ro ou serviços pelas IES. As principais formas de contraprestação foram trei-namento do recurso humano, educa-ção continuada e dotação tecnológica.Conclusões: a integração ensino-serviço de universidades públicas e privadas com diferentes instituições é necessária na formação integral dos profissionais de enfermagem. As IES são forçadas a oferecer atividades de compensação e remuneração de acordo com sua capacidade e avalia-ção de necessidades conjuntas. Uma porcentagem baixa tem suas IPS, e a maioria é privada. A relação ensino-serviço melhora o atendimento, a educação, a orientação e a credibili-dade do paciente e da família, devido à presença da academia nas unida-des de atendimento., Introducción: la formación del talento humano en enfermería requiere de la articulación, de manera imprescindible, con las Instituciones Prestadoras de Servicios de Salud (IPS).Objetivo: analizar la relación docencia-servicio para la formación de talento humano en enfermería en Colombia.Materiales y métodos: estu-dio de tipo descriptivo. Se envió una encuesta electrónica con preguntas estructuradas y semiestructuradas a 53 Instituciones de Educación Supe-rior (IES). Se incluyeron instituciones con programas de enfermería y con convenios docencia-servicio para prácticas formativas.Resultados:participaron 48 programas de enfermería de IES priva-das (60,4 %) y públicas (39,6 %). El 62,5 % no contaban con una IPS propia para el desarrollo de prácticas formativas en salud, situación que deriva en estructu-ración de convenios docencia-servicio y pagos en dinero o servicios por las IES. Las principales modalidades de contraprestación fueron capacitación del recurso humano, educación conti-nuada y dotación tecnológica.Conclusiones: la integración docencia-servicio de universidades públicas y privadas con diferentes insti-tuciones es necesaria en la formación integral de profesionales de enferme-ría. Las IES se ven abocadas a ofrecer actividades de compensación y contra-prestación según su capacidad y valo-ración de las necesidades conjuntas. Un bajo porcentaje cuenta con IPS propias, cuya mayoría es de carácter privado. La relación docencia-servicio mejora la atención, educación, orientación a los pacientes y familiares y la credibilidad por la presencia de la academia en las unidades asistenciales.

Objective: To determine the psychometric properties of the instru-ment “Assessment of nurse-family interpersonal relationships in the Intensive Care Unit (VriEF-icU).”Materiales and method:Five-phase instrumental study: i) content validity through expert judg-ment, ii) construct validity by imple-menting exploratory factor analysis, iii) criterion validity analyzing correla-tion with a theoretically compatible instrument, iv) reliability with the reliability index by halves, and v) anal-ysis of difficulty/consistency through the Rasch model. The pilot sample consisted of 430 relatives of adult patients admitted to the icU of two university hospitals. The sample for the expert judgment was 7 specialists.Results: The VriEF-Uci showed a global concordance index of 0.96; construct validity determined that the instrument is one-dimensional with an explained variance of 68.6% for one factor; criterion valid-ity evidenced a correlation index with the external criterion of 0.876; the reliability of the instrument is determined with a reliability index by halves of 0.90. The Rasch model showed adequate levels of difficulty, which translates into a high prob-ability that participants adequate-ly develop the instrument (mean square residuals of 0.99 and stan-dardized statistical fit of -0.1 for internal fit, and mean square resid-uals of 1.01 and standardized statisti-cal fit of 0.1 for external fit). Conclusions:The psychometric properties of the VriEF-Uci instrument are suitable for assessing the inter-personal relationships between nurse and family in the intensive care unit, Objetivo: determinar as proprie-dades psicométricas do instrumento “Avaliação das relações interpessoais enfermeira-família em Unidade de Terapia Intensiva (VriEF-UTi)”.Materiais e método: estudo instrumental em cinco fases: i) vali-dade de conteúdo por meio de julga-mento de especialistas; ii) validade de construto por meio da implemen-tação de análise fatorial explorató-ria; iii) validade de critério a partir da análise da correlação com um instrumento teoricamente compatí-vel; iv) confiabilidade com o índice de correlação pela metade e v) análise de dificuldade/consistência por meio do modelo Rasch. A amostra-piloto foi composta por 430 familiares de pacientes adultos internados em UTi de dois hospitais universitários. A amostra para o julgamento do espe-cialista foi de sete especialistas. Resultados: o VriEF-Uci apresen-tou índice de concordância global de 0,96; a validade de construto determi-nou que o instrumento é unidimensio-nal com variância explicada de 68,6 % para um fator; a validade de critério evidenciou índice de correlação com o critério externo de 0,876; a confiabi-lidade do instrumento é determina-da com um índice de confiabilidade pela metade de 0,90. O modelo Rasch apresentou níveis de dificuldade adequados, o que se traduz em uma alta probabilidade de os participan-tes desenvolverem adequadamente o instrumento (resíduos quadrados médios de 0,99 e ajuste estatístico padronizado de -0,1 para ajuste inter-no e resíduos quadrados médios de 1,01 e ajuste estatístico padronizado de 0,1 para ajuste externo).Conclusões: as propriedades psico-métricas do instrumento Vri EF-Uci são adequadas para avaliar as relações interpessoais entre enfermeiro e famí-lia em unidade de terapia intensiva, Objetivo:determinar las propie-dades psicométricas del instrumento “Valoración de relaciones interperso-nales enfermera-familia en Unidad de Cuidados Intensivos (VriEF-Uci)”.Materiales y método: estudio de tipo instrumental de cinco fases: i) validez de contenido a través de juicio de expertos, ii) validez de cons-tructo implementando análisis facto-rial exploratorio, iii) validez de criterio analizando correlación con instrumen-to compatible teóricamente, iv) confia-bilidad con el índice de correlación por mitades y v) análisis de dificultad/consistencia a través del modelo de Rasch. La muestra del pilotaje fue de 430 familiares de pacientes adultos internados en uci de dos hospitales universitarios. La muestra para el juicio de expertos fue de 7 expertos. Resultados:el VriEF-Uci mostró un índice de concordancia global de 0,96; la validez de constructo determi-nó que el instrumento es unidimen-sional con una varianza explicada de 68,6 % para un factor; la validez de criterio evidenció un índice de corre-lación con el criterio externo de 0,876; la confiabilidad del instrumento es determinada con un índice de confia-bilidad por mitades de 0,90. El modelo de Rasch evidenció adecuados niveles de dificultad, lo que se traduce en una alta probabilidad de que los partici-pantes desarrollen adecuadamente el instrumento (residuales cuadráticos medios de 0,99 y de ajuste estadístico estandarizado de -0,1 para ajuste inter-no, y residuales cuadráticos medios de 1,01 y de ajuste estadístico estandari-zado de 0,1 para ajuste externo). Conclusiones: las propiedades psicométricas del instrumento VriEF-Uci son adecuadas para la valora-ción de las relaciones interpersona-les entre enfermera y familia en la unidad de cuidados intensivos.

The Nordic Genetic Resource Center (NordGen) is the joint genebank and knowledge center for genetic resources in the Nordic countries. Our mission is to conserve and promote the sustainable use of genetic diversity among animals, forests and plants that are important for Nordic agriculture and forestry. Statistics: Forest Seeds and Plants in the Nordic Region is a report with statistics on forest seeds and plant material in the Nordic countries. The report is primarily based on country reports (2013-2020), from the Nordic cooperation, through NordGen Forest Regeneration Council.

Dagstuhl Manifestos, Table of Contents, Volume 9, Issue 1, 2021

O artigo investiga a questão da eficácia das normas da nova lei de licitações, a Lei nº 14.133/2021, com ênfase na análise do Portal Nacional de Contratações Públicas (PNCP), do Sistema de Registro de Preços (SRP) e do registro cadastral. Por ser uma legislação nova, que ainda gera dúvidas quanto a sua interpretação e aplicação, aliado ao fato de possuir muitas remissões à necessidade de regulamentação, há na doutrina e no exercício da função pública diversas indagações sobre sua eficácia. Assim, pretende-se discorrer sobre se a Lei já teria eficácia plena ou não, estando pendente a implementação do PNCP, bem como se já seria possível utilizar o SRP e o registro cadastral nela previstos. Para a realização do artigo, utiliza-se o método de abordagem indutivo, possuindo natureza descritiva e exploratória quanto aos fins e bibliográfica em relação aos meios. Ao final, conclui-se que, no que tange à realização das licitações e consequentes contratos administrativos, enquanto não estiver em funcionamento o PNCP, a Lei nº 14.133/2021 não possui eficácia técnica. Além disso, mesmo após a implementação do PNCP, há normas que ainda dependem de regulamentação, por serem de eficácia limitada, como as relativas ao sistema de registro de preços. Há, entretanto, outros dispositivos que poderão ser aplicados após a implantação do PNCP, por veicularem norma de eficácia contida, tal qual a hipótese prevista no artigo 70, II, da nova lei., The article investigates the question of the effectiveness of the rules in the new Brazilian procurement law, Law Nº 14.133/2021, with an emphasis on the analysis of the National Public Procurement Portal (PNCP), the Price Registry System (SRP) and the “Registro Cadastral”. As it is a new legislation, which still raises doubts about its interpretation and application, coupled with the fact that it has many references to the need for regulation, there are several questions in the doctrine and in the exercise of public function about its effectiveness. Thus, it is intended to discuss whether the Law would already be fully effective while pending the implementation of the PNCP, as well as whether it would already be possible to use the SRP and the cadastral registration. For the realization of the article, the method of inductive approach is used, having descriptive and exploratory nature regarding the purposes and bibliographical as regards the means. In the end, it is concluded that with regard to bidding and consequent administrative contracts, while the PNCP is not in operation, Law Nº 14.133/2021 is not technically effective. In addition, even after the implementation of the PNCP, there are rules that still depend on regulation, as they are of limited effectiveness, such as those related to the Price Registry System. There are, however, other provisions that may be applied after the implementation of the PNCP, as they contain rules of contained effectiveness, such as the hypothesis provided in Article 70, II, of the new law