Abstract The authenticity of the Shroud of Turin, also known as the ‘Síndone’ or ‘Holy Shroud’, faces significant doubt based on scientific evidence. Carbon‐14 testing conducted decades ago placed ...its origin in the Middle Ages, raising questions about its connection to Jesus Christ. This article highlights an anatomical anomaly: the hand placement covering the genitals appears inconsistent with human proportions, suggesting a possible artistic intervention.
Según el Climate Reanalyzer de la Universidad de Maine, una plataforma en línea que ofrece representaciones visuales de los modelos climáticos (Granshaw, 2020), se ha registrado un acontecimiento sin ...precedentes en la historia de nuestro planeta: durante cuatro días consecutivos, desde el 3 hasta el 6 de julio del 2023, se ha vivido la temperatura más elevada jamás registrada (Ecoavant.com, 2023). Los datos proporcionados por esta herramienta son impactantes. Por su parte, la OMS nos advierte de la inminencia de una posible nueva pandemia (WHO, 2023). Los riesgos de futuros acontecimientos catastróficos globales empiezan a atisbarse en el horizonte (Pierrehumbert, 2005); tal vez sería el momento de empezar a desarrollar, y sobre todo legislar, medidas preventivas para cuando lo inevitable llegue. ...
Weed management systems have had and have a major importance for agriculture, although it can be done in various ways, the important thing is to obtain good control with those that are the most ...economical and at useful. A study was carried out with the objective of evaluating the environmental and economic impact of different weed management systems, which was conducted in commercial production areas of the Basic Production Unit "Vitalio Acuña", belonging to the Enterprise Unit of Base "Dos Ríos" of the Santiago de Cuba province. Four weed management systems were studied: Chemical (total application of herbicide), Mechanical (weeding with mechanical cultivation), Chemical / Mechanical (application of herbicide located in bands), and Cultural (unaltered coverage of crop residues). A strip experimental design with three replications was used. The coverage of weeds was determined at 30, 60 and 90 days after the treatments were applied, the economic expenses incurred were calculated and the pollutant load to the atmosphere was determined. At 90 days the lowest percentage of weed cover was obtained in the Cultural and Chemical / Mechanical management systems. The weed management system that had the best overall behavior from the point of view of control, environmental and economic impact, was the Cultural, followed by the Chemical / Mechanical management system.
The search for extraterrestrial intelligence on exoplanets is a rich field of conceptual exploration. Author introduces two definitions that could help to narrow down the possibilities that an ...extraterrestrial civilization may or may not have initiated exploration of its own star system and beyond. It is concluded that in some cases certain extraterrestrial civilizations may not be able to leave their home worlds to biological extinction, purely because of physical limitations.
The objective of this work was to evaluate the effects of nitrogen (N), phosphorus (P), and potassium (K) levels on the yield and fiber quality of cotton cultivars with different maturation cycles ...and chemical fertility gradients. The experimental design was a randomized block design with five replicates. The treatments consisted of a combination of 13 cotton cultivars (FM 910, FM 993, IMA 12427, IMA 1595, IMA 1600, IMA 2059, IMA 278, IMA 2968, IMA 3869, IMA 474, IMA 6035, IMA 690, and IMA 8276) at three levels of fertilization (50%, 100%, and 150% of the recommended dose of each nutrient) with nitrogen, phosphorus, and potassium. Cultivars IMA 2059, IMA 2968, and IMA 8276 had little or no response to increase fertility levels. However, they all produced more than 1000 kg ha
−1
of lint. Cultivars IMA 1600, IMA 3869, IMA 474, IMA 6035, and IMA 690 presented higher yields at the 150% level when compared to the 50% level, but these same yields were achieved with just the 100% recommended dose. IMA 6035 was the most productive. It had a lint yield of 1500 kg ha
−1
. In general, the use of 100% or 150% of the recommended nitrogen (N), phosphorus (P) and potassium (K) dose increased fiber quality, though this did not apply to micronaire values. These values decreased with increased fertility in 70% of the analyzed cultivars. We concluded that the level of soil fertility affects cotton yield and fiber quality responses. We found that demanding cultivars may increase yield. However, increasing the dose of nutrients can increase the cost of production in less demanding cultivars.
Traffic jams are a significant problem in urban cities that cause pollution and waste fuel, money, and time. Therefore, there is an urgent need to build tools that enable authorities to monitor and ...understand traffic dynamics and their causes. However, exploring these large complex data presents a challenge to domain experts. This paper proposes JamVis, a web-based visual analytics framework that leverages Waze’s multi-modal spatio-temporal data to this end. JamVis comprises two main components designed based on requirements elicited from domain experts. The first one supports the exploration of Waze’s traffic jam information through multiple linked views. The second component allows identifying events through alerts reported by Waze users about different problems (e.g., potholes, floods, or heavy traffic). A new algorithm called TST-clustering is introduced to perform event detection, which is an adaptation of the DB-Scan algorithm that allows clustering alerts by space, time, and type. Furthermore, to provide an overview of this algorithm’s spatio-temporal results, we introduce a novel visualization called ST-Heatmap. JamVis is validated through three usage scenarios analyzing different events in Rio de Janeiro.
M57 is one of the most observed and popular planetary nebulae. Recently, the James Webb Space Telescope photographed it, capturing fascinating images (NASA, 2023). As is the case with other ...well-known and popular objects, there are other nearby astronomical objects of interest that can sometimes go unnoticed. Very close to this nebula (at coordinates 18:53:18.81 +33:03:59.89 -in j2000-), there is an intriguing spiral galaxy of type SBbc, known as IC 1296. At a greater angular distance from M57 and IC 1296, at coordinates 18:53:09.625 +33:05:38.85, there is a very faint object called WISEA J185309.64+330538.7. The author presents preliminary results of the spectral analyses of both galaxies, obtained at the Skinakas Observatory (Greece), providing some conclusions about their types and, in the case of WISEA J185309.64+330538.7, its distance. Both galaxies exhibit traces of having active galactic nuclei, with WISEA J185309.64+330538.7 being a radio galaxy with Seyfert 1 characteristics, while IC 1296 shows some lines that could indicate its membership in the intermediate category Seyfert 1.5 (between Seyfert 1 and 2), in addition to being a known X-ray emitter.
Nitrogen (N) is one of the most absorbed and exported nutrients by cotton plants (Gossypium hirsutum L.), but excessive rates can result in excessive growth and reduce fiber yield and quality. ...Combinations of high N rates and high plant density reduced yields, especially in locations where yield is higher than 2000 kg ha−1 of fiber. The effect on fiber quality (mainly micronaire and fiber strength) was lower in a location with the yield lower than 1600 kg ha−1 of fiber and higher where the yield is higher than 2000 kg ha−1 of fiber. Increasing the N rate is a strategy to boost yields with low soil fertility in low plant density crops and early maturation cultivars. The highest fiber yields were obtained with plant populations between 6.6 and 8.6 plants m−2 (66,000–86,000 plants ha−1) and the best N dose depends on the plant population. Proper management of plant density and N fertilization must consider the specific cultivar, yield environment, and cotton yield potential.
•High yield can be obtained with low plant density and higher doses of N.•Yield decreases with intermediate maturing cultivar, high N and density of plants in sandy soil.•In sandy soil environments low plant density is compensated by the increase N doses.•Fiber quality is lower when sowing is late with high dose of N and density of plants.
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