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Central coke charging (CCC) is a widely used burden distribution method for blast furnaces (BFs). Adjusting the central coke ratio can change the burden temperature field and affect the smooth operation of BF. This study presents a coupled physical and mathematical model, incorporating particle motion, gas flow, and heat transfer between the burden and gas in two 5500 m3 BFs. The central coke ratios of the blast furnace A (BFA) and blast furnace B (BFB) is 15% and 20%, respectively. The root positions of the cohesive zone in the BFA and BFB are in the lower part of the stack and bosh zones, respectively. In the central area of the BF, the gas flow rate, gas temperature, and burden temperature of the BFB are higher. In the edge area of the BF, the gas flow rate, gas temperature, and burden temperature of the BFA are higher. The actual top gas temperature and gas pressure verify the accuracy of the proposed model. This model investigates the influence of the central coke ratio on the position of the cohesive zone, gas flow rate, gas temperature, and burden temperature, providing a cost‐effective method for studying the effect of the burden distribution matrix on the internal state of the BF. [ABSTRACT FROM AUTHOR]

Pyrolysis of two types of pellets (T1: 100% wheat straw, and T2: 70% wheat straw; 10% sawdust, 10% biochar, and 10% bentonite clay) was performed in a pilot‐scale reactor under a nitrogen environment at 20°C to 700°C. This was to investigate slow pyrolysis yields and gas composition as a function of temperature and residence time. The experimental data were obtained between 300°C and 600°C, with a residence time of 90 min, a nitrogen flow rate of 50 cm3/min, and a heating rate of 20°C/min. The results indicated that the maximum pyrolysis temperature is 605°C with a residence time of 55 min. The product analysis showed that the proportion of gas was higher than that of biochar and bio‐oil. The conversion efficiency increased with higher temperatures and varied between 66% and 76%. The results showed that carbon dioxide was the main component in the produced gas, and the maximum gas concentration was 63.6% at 300°C for T1. The higher temperature and longer residence time increased the syngas (CO + H2) composition for both T1 and T2 treatments. Nevertheless, the produced biochar had a high carbon content and retained a high calorific value, indicating slow pyrolysis is the ideal utilization route of wheat straw pellet biomass for biochar. [ABSTRACT FROM AUTHOR]

A 14‐year‐old intact female diabetic dog presented with seizures and hyperglycemic hyperosmolar syndrome. Radiographs revealed gas‐filled tubular structures in the right and left caudal abdomen, raising concerns of emphysematous pyometra or small intestinal ileus. Ultrasonography played a pivotal role in confirming emphysematous pyometra, a technique previously documented only once in veterinary practice. This report also presents the first documented case of emphysematous pyometra in a diabetic dog attributed to Klebsiella pneumoniae and complicated by emphysematous hepatitis. [ABSTRACT FROM AUTHOR]

This paper proposes a new risk measurement model that directly incorporate information from high‐frequency data to predict daily Value‐at‐Risk and expected shortfall. In this model, Regular‐Vine copula and Monte Carlo simulation are applied to produce the predicted intraday returns that have nonlinear dependences. And the time‐varying marginal distribution of intraday returns is estimated under the framework of generalized autoregressive score. The model is so named R‐Vine‐Copula‐GAS (abbreviated as RVCGAS). The predicted intraday returns in the same day are added up to obtain the daily return and form its empirical distribution. The risk measurements are then calculated based on this simulated distribution. An empirical analysis is conducted using data from the index in China's stock market and some of its constituents, and the effects of the proposed model and several Benchmark models are compared through some backtestings. The results show that RVCGAS has an advantage over others in predicting tail risk when the risk level is high, since it could cover more risky returns and reduce more costs. [ABSTRACT FROM AUTHOR]

Objective: This study sought to evaluate the feasibility of multifunctional gastrodin (GAS)‐containing nano‐drug carrier system against cerebral ischemia–reperfusion injury (CIRI). Methods: The drug‐loaded nanocomposite (Au‐G5.NHAc‐PS/GAS) with certain encapsulation efficiency (EE) was prepared by physical adsorption method using different proportions of GAS and drug‐carrying system (Au‐G5.NHAc‐PS). High‐performance liquid chromatography was used to determine the drug loading and EE. Cultured rat astrocytes and hypothalamic neurons were assigned into four groups: PBS, Au‐G5.NHAc‐PS, Au‐G5.NHAc‐PS/GAS, and GAS. CCK‐8 assay, flow cytometry, and quantitative real‐time PCR were performed to examine the cell viability, apoptosis, and the expression of tumor necrosis factor‐α (TNF‐α), IL‐1β, and IL‐6 in the astrocytes and hypothalamic neurons, respectively. Cellular uptake of GAS and Au‐G5.NHAc‐PS/GAS was analyzed by using Hoechst 33342 staining. The animal model with focal cerebral ischemia was generated by middle cerebral artery occlusion (MCAO) in healthy male Sprague Dawley (SD) rats, and pathological changes of brain tissue and major organs in the rats were identified by hematoxylin and eosin (HE) staining. Apoptosis in rat astrocytes and hypothalamic neurons was detected by TUNEL staining and flow cytometry. Results: Au‐G5.NHAc‐PS had a spherical shape with a uniform size of 157.3 nm. Among the nanoparticles, Au‐G5.NHAc‐PS/GAS with an EE of 70.3% displayed the best release delay effect. Moreover, we observed that in vitro cytotoxicity and cellular uptake of Au‐G5.NHAc‐PS/GAS were higher than those of GAS, whereas the expression of TNF‐α, IL‐1β, and IL‐6 was significantly downregulated in Au‐G5.NHAc‐PS/GAS group as compared to G5.NHAc‐PS group. Notably, HE staining revealed that although Au‐G5.NHAc‐PS/GAS had no toxic and side effects on the main organs of rats, it alleviated the damage of brain tissue in the MCAO rats. Besides, Au‐G5.NHAc/GAS markedly reduced MCAO‐induced apoptosis. Conclusion: Au‐G5.NHAc‐PS showed favorable surface morphology, sustained drug release ability, no measurable toxicity, and good biocompatibility, indicating that GAS exerts anti‐inflammatory and antiapoptotic effects on CIRI. [ABSTRACT FROM AUTHOR]

Introduction: The purpose of this study was to assess whether simethicone reduces the rectal volume (RV) and gas volume (GV), to increase treatment accuracy and to decrease toxicity of prostate radiation therapy. Methods: 30 patients were randomised to simethicone or no intervention. Cone‐beam computed tomography (CBCT) scans were performed on Days 1–3 and weekly until completion of radiation. RV and GV were measured using volume delineation. Toxicity data were collected. Results: 264 CBCTs were analysed. RV and GV were not significantly different in the simethicone group compared with the control group at each time point (P >0.05) after adjusting for Week 0 values as a covariate. The simethicone group showed an average reduction in RV and GV of 10% and 21%, respectively, compared with the control group (P >0.05). Standard deviations were calculated over 10 time points, which were grouped to represent the first 2–3 weeks of radiation therapy versus subsequent weeks. These were not significantly different between the simethicone and control group. However, there was a statistically significant decrease in the variability of RV at time points 6–10 compared with time points 1–5 within the simethicone group (P = 0.012), but no significant difference was found between these grouped time points in the control group (P = 0.581). The toxicity questionnaires showed no significant difference between the groups. Conclusions: Simethicone did not decrease the RV or GV overall. However, simethicone appeared to significantly decrease the RV variability from Week three onwards. This suggests that taking simethicone two to three weeks before starting radiation therapy may reduce RV variability, although a larger study is needed to confirm this. [ABSTRACT FROM AUTHOR]

The organic light‐emitting diode (OLED) panels showed a significant color change in the solar radiation evaluation. After exposure to solar radiation, the luminance of some OLEDs was significantly decreased. In these OLEDs, the purity of electron transport layer (ETL) material was noticeably decreased after light exposure. It was determined that some gasses came out from the pixel‐define layer (PDL) by measuring the thermal desorption spectroscopy (TDS). By these gasses, the degradation was accelerated in organic layers and cathode. When the solar radiation evaluation was done with putting the 420 nm cut‐off filter on the panel, the color variation was absolutely disappeared. We paid attention to this result that the problem was solved by blocking a near‐UV light. A new capping layer (CPL) material increasing the absorption of near‐UV light was used. While the solar radiation evaluation was passed, they had very small process margin on evaporation of red and green interlayer. Moreover, color difference of white light was increased. When a near‐UV light absorbing dye was inserted to the polarizer film, color change in the solar radiation evaluation absolutely disappeared. Finally, we could pass the solar radiation evaluation through this attempt and the OLED panels with this polarizer film applied to mass production. [ABSTRACT FROM AUTHOR]

BACKGROUND The gibberellins (GAs) GA5 (inhibitor of GA3‐oxidase), GA4 (biologically active), GA4/7 (commercially available mixture of Ga4 and GA7) prohexadione‐calcium (ProCa, inhibitor of dioxygenases that render GAs bioactive, negative control), and GA3 (positive control) were applied to bunches of Vitis vinifera cv. Malbec. Different techniques, doses, and timings were used in a 3‐year field experiment. In year 1, GA5, ProCa, and GA3 were applied at 35, 20, and 0 days before veraison (DBV) by dipping bunches three times. In year 2, single applications of GA5 and GA3, also by immersion, were tested at 60, 45, and 30 DBV. In year 3, applications at 60 and 30 DBV of GA5, GA4, and a mixture of GA4/7 were evaluated by dipping or spraying the bunches. RESULTS: Vegetative growth, berry weight, and sugar content were unaffected by treatments. ProCa did not affect the yield with respect to water control, although it reduced the levels of phenolics in berry skins, an undesirable effect for winemaking. GA5, in the dose range 5–50 mg L−1, raised berry numbers, thereby augmenting bunch weight and skin phenolics at harvest, so increasing berry quality for winemaking. GA4 and GA4/7 produced similar benefits to GA5, with similar doses. CONCLUSION: The applications of GA5, GA4, and GA4/7 to developing grape berry bunches, in a range of concentrations and by dipping or spraying, increased berry numbers per bunch at harvest. The method can be used as a viticultural practice to improve the production and quality of wine grapes. © 2021 Society of Chemical Industry. [ABSTRACT FROM AUTHOR]

Wetlands are known for comparatively high production of biogenic ethylene from decomposed sediment. Because the gas has various well‐documented effects on seed physiology, we asked whether it can be a vital seed germination cue for wetland plants. Specifically, we explored whether ethylene plays an ecological role in (i) breaking/weakening seed dormancy, (ii) broadening the germination niche width, (iii) promoting germination speed or (iv) altering the germination requirements of six plant species with different occurrence along a hydroperiod gradient.In a factorial experiment, both ethylene‐treated and untreated seeds were incubated in combinations of temperature (constant versus fluctuating), illumination (light versus darkness) and oxygen (aerobic versus hypoxia) with and without cold stratification.Our results revealed seed exposure to ethylene did not weaken or break dormancy without cold stratification treatment. However, ethylene helped to broaden the germination niche width, increased overall germination percentage and speed of cold‐stratified (non‐dormant) seeds. This indicates that ethylene helps those seeds that lost dormancy (non‐dormant) to sense favourable water‐saturated versus flooded substrate depending on their requirement for aerobic versus hypoxic conditions to trigger germination.We conclude that ethylene does not interfere directly with the dormancy‐breaking process in autumn‐dispersed seeds that are naturally cold‐stratified in winter and germinate in spring/summer. However, ethylene plays a crucial ecological role as a 'flood detector' for different wetland plant communities (reed, mudflat, swamp, shallow water) to synchronize germination of non‐dormant seeds in the most suitable habitat at the right time. [ABSTRACT FROM AUTHOR]

This paper compares Generalized Autoregressive Score (GAS) models and GARCH‐type models on their forecasting abilities for crude oil and natural gas spot and futures returns from developing and developed markets over multiple horizons. The out‐of‐sample forecasting results based on two loss functions and the Diebold–Mariano predictive accuracy test for multiple models show that the GAS framework outperforms GARCH and EGARCH models, particularly for crude oil assets. For natural gas, no specific model retains an advantage over the other two models as the predictive accuracy changes over forecasting horizons and varies across markets. Meanwhile, the GAS model performs well in both developed and developing markets. The cumulated sum of squared forecast error differential (CSSFED) graphically monitors the evolution of the relative forecasting performance of different models and shows that the superiority of GARCH is vulnerable to extraordinary event shocks. Over the short‐term forecasting (less than or equal to 1 month ahead), the GAS framework shows a prominent advantage over GARCH and EGARCH models for crude oil assets. [ABSTRACT FROM AUTHOR]

Background: The colonic motor patterns associated with gas transit are poorly understood. This study describes the application of high‐resolution impedance manometry (HRiM) in the human colon in vivo to characterize distal colonic motility and gas transit; (a) after a meal and (b) after intraluminal gas insufflation into the sigmoid colon. Methods: HRiM recordings were performed in 19 healthy volunteers, with sensors positioned from the distal descending colon to the proximal rectum. Protocol 1 (n = 10) compared pressure and impedance prior to and after a meal. Protocol 2 (n = 9) compared pressure and impedance before and after gas insufflation into the sigmoid colon (60 mL total volume). Key Results: Both the meal and gas insufflation resulted in an increase in the prevalence of the 2‐8/minute "cyclic motor pattern" (meal: (t(9) = −6.42, P<0.001); gas insufflation (t(8) = −3.13, P = 0.01)), and an increase in the number of antegrade and retrograde propagating impedance events (meal: Z = −2.80, P = 0.005; gas insufflation Z = −2.67, P = 0.008). Propagating impedance events temporally preceded antegrade and retrograde propagating contractions, representing a column of luminal gas being displaced ahead of a propagating contraction. Three participants reported an urge to pass flatus and/or flatus during the studies. Conclusions and Inferences: Initiation of the 2‐8/minute cyclic motor pattern in the distal colon occurs both following a meal and/or as a localized sensorimotor response to gas. The near‐absence of a flatal urge and the temporal association between propagating contractions and gas transit supports the hypothesis that the 2‐8/minute cyclic motor pattern acts as a physiological "brake" modulating rectal filling. [ABSTRACT FROM AUTHOR]

Rheumatic heart disease (RHD) is a large, preventable, global public health burden. In New Zealand (NZ), acute rheumatic fever (ARF) and RHD rates are highest for Māori and Pacific children. This structured review explores the evidence for primary prevention interventions to diagnose and effectively treat group A Streptococcus (GAS) pharyngitis and skin infections to reduce rates of ARF and RHD. Medline, EMBASE and Scopus databases were searched as well as other electronic publications. Included were 50 publications from 1980 onwards. This review has identified that there is little available evidence for effective primary prevention strategies to reduce ARF rates in NZ. However, two primary intervention strategies that should be considered by communities at high-risk of ARF are: the use of school-based clinics to identify and treat GAS pharyngitis and GAS skin infections; and intramuscular benzathine penicillin G with lignocaine analgesia in children who present with a GAS positive throat. [ABSTRACT FROM AUTHOR]

Assessing the potential and likelihood of explosive eruptions is vital for almost 800 million people living near active volcanoes. Magma reservoirs are not directly accessible, limiting our capability to understand the prerequisites for an explosive eruption and our ability to perform experiments that simulate magmatic processes at depth. Therefore, deciphering volcanic precursors is key to forecasting volcanic eruptions. In this study, we used synchrotron‐based X‐ray tomographic microscopy to observe felsic magma vesiculation at high temperature (1,100°C) to establish the pre‐eruptive conditions that favor explosive activity. Specifically, we studied the increase of seismic attenuation with increasing gas content during magma vesiculation. These results are applied to the natural range of volcanic tremors (0.2–5 Hz) to detect the proximity of gas‐charged magma to the surface prior to volcanic eruption: gas‐rich, crystal‐free felsic magmas are detected at larger depth (40 MPa) than gas‐rich, crystal‐bearing systems (10 MPa). Plain Language Summary: Forecasting the likelihood of explosive eruptions is vital for almost 800 million people living near active volcanoes. To this goal, volcano monitoring that uses seismic waves to image magmas at depth is crucial for deciphering the causes driving an explosive eruption. As we have no direct access to magmatic processes at depth, here we use very high‐resolution 3D imaging techniques to observe the formation of gas bubbles in a lab‐scale magma to establish the conditions that favor explosive activity. In particular, we correlate how the presence of excess gas in magmas can modulate the seismic imaging of magmas prior to their eruption. These results offer the opportunity to better illuminate the causes of explosive eruptions and how to apply seismic imaging for detecting the proximity of gas‐rich magma to the surface prior to a volcanic eruption. Key Points: Seismic wave attenuation can be used to determine gas‐charged magma ascent prior to eruption3D imaging of vesiculation and wave attenuation modeling show crystal‐poor magmas are detected at larger depth than crystal‐rich onesLow‐frequency seismic attenuation can be used to pinpoint the gas accumulation in shallow magma reservoirs prior to eruption [ABSTRACT FROM AUTHOR]

The flow of gas through shallow marine sediments is an important component of the global carbon cycle and affects methane release to the ocean and atmosphere as well as submarine slope stability. Seafloor methane venting is often linked to dissociating hydrates or gas migration from a deep source, and subsurface evidence of gas‐driven tensile fracturing is abundant. However, the physical links among hydrate dissociation, gas flow, and fracturing have not been rigorously investigated. We used mercury intrusion data to model the capillary drainage curves of shallow marine muds as a function of clay content and porosity. We combined these with estimates of in situ tensile strength to determine the critical gas saturation at which the pressure of the gas phase would exceed the pressure required to generate tensile fractures. Our work showed that fracturing is favored in the shallowest 38 m of sediment when the clay‐sized fraction is 0.2, but fracturing may be possible to a depth of 132 m below seafloor (mbsf) with a clay‐sized fraction of 0.5 and to a depth of nearly 500 mbsf with a clay‐sized fraction of 0.7. Dissociating hydrate may supply sufficient quantities of gas to cause fracturing, but this is only likely near the updip limit of the hydrate stability zone. Gas‐driven tensile fracturing is probably a common occurrence in the upper 10–20 mbsf regardless of clay‐sized fraction, does not require much gas (far less than 10% gas saturation), and is not necessarily an indication of hydrate dissociation. Plain Language Summary: Gas bubble emissions from discrete locations on the seafloor are observed at many locations worldwide. Bubble emissions are often linked to hazards such as submarine landslides and may contribute to ocean acidification and release of methane to the atmosphere. Observations indicate that the gas tends to move through fractures or cracks, but the role of gas in potentially forming those fractures and the overall process of gas accumulation and flow in shallow marine sediments are not well understood. Using a new model based on laboratory data to predict how much gas is needed to generate fractures in shallow marine sediments, we show that gas can easily generate fractures near the seafloor, particularly when the sediments contain a significant amount of clay. Our results demonstrate that gas‐driven fracturing is probably a common occurrence near the seafloor, does not require very much gas, and may not necessarily be an indication of gas hydrate melting caused by ocean temperature increase. Key Points: Gas‐driven tensile fracturing can occur in the upper 40 m below seafloor if the clay‐sized fraction is greater than 20%If the clay‐sized fraction exceeds 60%–70%, gas saturations <10% can generate tensile fractures in sediments as deep as 2 km below seafloorHydrate dissociation can cause fracturing and venting where the base of the hydrate stability zone intersects the seafloor [ABSTRACT FROM AUTHOR]

The molar composition of gas mixtures in fluid inclusions is one of the most important properties to reconstruct the Pressure, molar Volume, Temperature Composition properties of geofluids. Raman spectroscopy is a powerful tool for quantitative analysis of the composition of fluids trapped in inclusions as the peak area of each species is directly linked to concentration by its Raman scattering cross section. Previous studies proved the effect of host mineral birefringence on the shape of the stretching vibration band of liquid water, and hence on the quantitative determination of salinity, but the influence on gas‐mixture inclusions was never evaluated. In this study, the Raman signals of coexisting CO2, CH4, and N2 in two natural fluid inclusions in quartz were collected with sample rotation on the microscope stage. Peak area ratios (CO2+/CH4, CO2+/N2, and N2/CH4) showed sinusoidal variations with a period of 45°. On the contrary, the area ratio of the two peaks of CO2 (CO2+/CO2−) and the Fermi diad splitting remained constant with sample rotation. This effect is most probably due to a combination of polarization effects as previously observed for liquid water: depolarization ratios of each gas species, birefringence of the host mineral, and polarization response curve of the spectrometer. It can be canceled by placing the sample at crystal extinction position. [ABSTRACT FROM AUTHOR]

The release of greenhouse gases from both natural and man‐made sites has been identified as a major cause of global climate change. Extensive work has addressed quantifying gas seeps in the terrestrial setting while little has been done to refine accurate methods for determining gas flux emerging through the seabed into the water column. This paper investigates large‐scale methane seepage from the Scanner Pockmark in the North Sea with a new methodology that integrates data from both multibeam and single‐beam acoustics, with single‐beam data covering a bandwidth (3.5 to 200 kHz) far wider than that used in previous studies, to quantify the rate of gas release from the seabed into the water column. The multibeam data imaged a distinct fork‐shaped methane plume in the water column, the upper arm of which was consistently visible in the single‐beam data, while the lower arm was only intermittently visible. Using a novel acoustic inversion method, we determine the depth‐dependent gas bubble size distribution and the gas flux for each plume arm. Our results show that the upper plume arm comprises bubbles with radii ranging from 1 to 15 mm, while the lower arm consists of smaller bubbles with radii ranging from 0.01 to 0.15 mm. We extrapolate from these estimates to calculate the gas flux from the Scanner Pockmark as between 1.6 and 2.7 × 106 kg/year (272 to 456 L/min). This range was calculated by considering uncertainties together with Monte Carlo simulation. Our improved methodology allows more accurate quantification of natural and anthropogenic gas plumes in the water column. Plain Language Summary: Understanding the rate of gas release from natural ebullition sites, such as pockmarks, into the water column is a major factor in understanding the input of greenhouse gases, such as methane and carbon dioxide, into the global ocean system. The detection and quantification of gas flux in the marine environment have relied upon acoustics. However, current active acoustic methods are mainly based on single‐frequency quantification, which can never unambiguously quantify the gas flux due to the bubble size distribution and the scattering across a range of frequencies, and lead to an ill‐conditioned inversion problem. This paper proposes a solution to this dilemma using two elements. First, we employ a wider range of frequencies than previously used, so that more of the bubble resonances are encompassed. Second, it assumes a form for the bubble size distribution, further constraining the solution and effectively regularizing the inversion. The broadband methodology enables us to quantify gas flux with frequencies spanning the resonances of all the bubbles in the plume, allowing more accurate quantification of natural and anthropogenic gas plumes in the water column. Key Points: A broadband active acoustic method for determining the bubble size distribution and gas flux of gas plumes in the water column is presentedImaging of the methane plume in the North Sea showed two distinct arms with larger bubbles and smaller bubbles, respectivelyTotal in situ methane flux from the pockmark into the water column is quantified as between 1.6 and 2.7 × 106 kg/year (272 to 456 L/min) [ABSTRACT FROM AUTHOR]

Streptococcal toxic shock‐like syndrome (TSLS) is a rare and fatal infection associated with Streptococcus pyogens (group A streptococcus). While there are documented cases of TSLS, it is rarely observed following extraction on non‐infected wisdom teeth. We describe the diagnostic criteria and successful treatment of a case of TSLS resulting in multisystem organ failure following uncomplicated extraction of his wisdom teeth in a healthy 18‐year‐old male. [ABSTRACT FROM AUTHOR]

This paper applies generalized autoregressive score‐driven (GAS) models to futures hedging of crude oil and natural gas. For both commodities, the GAS framework captures the marginal distributions of spot and futures returns and corresponding dynamic copula correlations. We compare within‐sample and out‐of‐sample hedging effectiveness of GAS models against constant ordinary least square (OLS) strategy and time‐varying copula‐based GARCH models in terms of volatility reduction and Value at Risk reduction. We show that the constant OLS hedge ratio is not inherently inferior to the time‐varying alternatives. Nonetheless, GAS models tend to exhibit better hedging effectiveness than other strategies, particularly for natural gas. [ABSTRACT FROM AUTHOR]

Decades of atmospheric research have focused on the Western North Atlantic Ocean (WNAO) region because of its unique location that offers accessibility for airborne and ship measurements, gradients in important atmospheric parameters, and a range of meteorological regimes leading to diverse conditions that are poorly understood. This work reviews these scientific investigations for the WNAO region, including the East Coast of North America and the island of Bermuda. Over 50 field campaigns and long‐term monitoring programs, in addition to 715 peer‐reviewed publications between 1946 and 2019, have provided a firm foundation of knowledge for these areas. Of particular importance in this region has been extensive work at the island of Bermuda that is host to important time series records of oceanic and atmospheric variables. Our review categorizes WNAO atmospheric research into eight major categories, with some studies fitting into multiple categories (relative %): aerosols (25%); gases (24%); development/validation of techniques, models, and retrievals (18%); meteorology and transport (9%); air‐sea interactions (8%); clouds/storms (8%); atmospheric deposition (7%); and aerosol‐cloud interactions (2%). Recommendations for future research are provided in the categories highlighted above. Key Points: A total of 50+ field studies and 700+ papers illustrate the complexity of atmospheric phenomena over the West North Atlantic and North American East CoastThe widest body of work has been devoted to atmospheric chemistry and has characterized urban outflow and marine emissionsMultidisciplinary topics such as aerosol‐cloud and air‐sea interactions have not been sufficiently addressed and warrant high priority [ABSTRACT FROM AUTHOR]

Pathological changes in the vertebral column of farmed Atlantic salmon in Norway have been reported since the 1990s. Based on the characteristic radiographic findings, we here present a vertebral column deformity named "curved cross‐stitch vertebrae" that mainly affects the middle aspect of the vertebral column. Sixty fish, from the west/northwest coast of mid‐Norway, were sampled at slaughter and examined by radiography, computed tomography (CT), necropsy, macrophotography, and histology. The vertebral deformities were radiographically graded as mild, moderate, or marked. The main differences between these grades of changes were defined by increased curving of the peripheries of endplates, reduced intervertebral spaces, and vertical displacement of the vertebrae. The curved rims of endplates were located peripheral to a continuous and approximately circular borderline. The CT studies revealed small, multifocal, hypo‐attenuating, round to crescent‐shaped areas in the notochord, compatible with the presence of gas. Additionally, histology revealed that the axial parts of endplates had circular zones with perforations, through which either notochordal tissue prolapsed into the vertebrae or vascularized fibrochondroid proliferations extended from the vertebrae into the notochord. Inflammation was present in many vertebral bodies. To the best of our knowledge, this is the first report of gas in the notochord of fish. [ABSTRACT FROM AUTHOR]

This paper presents some fundamental factors that influence the reliability of fire and gas (F&G) alarm systems by incorporating human factor's principles. As compared, standard alarm and the safety‐related alarm will show two different values of IPF given in process hazard analysis (PHA) studies. In this study, fault tree diagram has been used to calculate the process flow diagram (PFD) value, to identify which alarm type could meet the standard of safety integrity level (SIL1) for F&G system for a single train process. Comparison of both alarms is done for three types of selected detectors; flammable gas detectors, flame detectors, and toxic gas detectors. It has been identified that standard alarm for all type of detectors does not meet the SIL1 requirement. Compared to safety‐related alarm, all detectors are able to meet the requirement of SIL1. Since the greater IPF will be given for safety‐related alarm, it is crucial to study the holistic factor that could maintain the system with good efficiency and performance. The human factor has been identified as the most critical element for safety‐related alarm. A complete coordinated approach is needed to ensure the performance and efficiency of the F&G alarm system can be maintained while process plants are able to be safely operated within as low as reasonably achievable region. [ABSTRACT FROM AUTHOR]

This article discusses EU energy and climate policy through the prism of multidimensional power. In so doing, it explores the forms of power EU policy draws from and employs. The article argues that through its gas first policy the EU misused its productive power and failed to shift structural power dynamics, while overplaying its institutional and compulsory power to fulfil its energy/climate goals despite the EU's obvious limitations in the former and impotence in the latter. This mismatch between means and goals points to the need for an alternative power toolbox. This consists in the exercise of productive power to signify clean energy as the new normal; the use of coercive structural and market power to shape and regulate clean energy markets and the increased use of institutional power deriving from a comprehensive energy transition. This power toolbox relaxes the shortcomings of the EU's gas first policy, cements EU energy security and supports the global uptake of transitions to renewable energy. [ABSTRACT FROM AUTHOR]

In this work, the structural characteristics of Wangqing oil shale were investigated using 13C nuclear magnetic resonance spectroscopy (NMR) and Fourier‐transform infrared spectroscopy (FTIR) techniques. The thermogravimetric‐Fourier‐transform infrared spectroscopy (TG‐FTIR) was used to pyrolyze samples and study their kinetics at four different heating rates. Meanwhile, the peak fitting method was used to study the carbon monoxide (CO) produced during the pyrolysis process. The results indicated that the oil shale was mainly composed of aromatic, aliphatic, hydroxyl, and oxygen‐containing functional groups, among which the aliphatic group was the most abundant. The pyrolysis process of oil shale was divided into four stages, whereas the pyrolysis weight loss and volatilization were concentrated in the second stage. When the number of peaks was 4, the fitting results were the best, which indicated that the precipitation of CO gas was affected by the four different types of reactions and was mainly the result of oxygen group and its side chain fracture. [ABSTRACT FROM AUTHOR]

Summary: This piece is part of a special section of "hundreds" for Kathleen Stewart. [ABSTRACT FROM AUTHOR]