Brightness Research Articles

Non-Invasive Raman Classification Comparison with pXRF of Monochrome and Related Qing Porcelains: Lead-Rich-, Lead-Poor-, and Alkali-Based Glazes.

Chinese porcelain with an optically clear colored glaze, imported to Europe from the Kangxi period (1662-1722, Qing Dynasty) onwards was highly collected by the French Elite of the 18th century. The bright colors with a clear, shiny glaze were unlike anything produced in Europe at that time. The colors of enamelled artifacts (on biscuits or already glazed porcelain) can be fully monochrome or consist of associations of large monochromatic areas with or without application of gilding. Non-invasive portable XRF and mobile Raman analyses have previously shown their effectiveness in the characterization of (colored) glassy silicates. In this study, we compare the Raman signatures of twenty-one Chinese artifacts fully-or with major monochrome area (sancai)-decorated with blue, turquoise (or celectian blue), honey-yellow, green, eggplant, and red color. Different types of glazes are identified and confirmed by pXRF: lead-rich, lead-poor-alkali, lead-doped alkali, and alkali-based compositions. However, an unexpected low level of lead is observed in the turquoise glazes, likely to optimize the gloss. Raman spectroscopy appears more reliable to compare the Pb content than pXRF. This work presents Raman spectral signatures of glazes that can potentially be used for non-invasive object classification and counterfeit detection.

Demography and natural history of the damselfly Mesamphiagrion gaudiimontanum (Coenagrionidae), a Páramo endemic species in the Colombian Andes

The páramos are high mountain ecosystems in the tropical regions of the New World, and they are particularly threatened by climate change. The Belmira páramo complex in Colombia is home to Mesamphiagrion gaudiimontanum, an endemic and endangered damselfly species. This study presents the first demographic assessment of M. gaudii­montanum using the capture-recapture method to estimate population size, survival, and detection probabilities, focusing on differences in age, sex, female color morphs, and parasite infestation. The population size was estimated to be 730 ± 186.59 individuals, with an average survival probability of 0.89 ± 0.04 and a life expectancy of 8.34 days, these data are like the reported for other populations in the same genus in harsh environmental conditions. Ectoparasitic mites were more common on juveniles than adults. After several hours of observing the species few copula events have been recorded, all of them involving juvenile adult females, which points to a monandrous reproduction syndrome for the species. Another phenomenon observed in the species was a change in coloration due to body temperature in individuals, in which bright coloration becomes grayish in cold weather. This study provides fundamental data for future monitoring and conservation efforts, highlighting the species’ vulnerability to environmental changes and the need for specific conservation strategies.

The influence of different fertigation levels on the functional quality characteristics of three different strawberry (Fragaria × ananassa Duch.) varieties cultivated under protected conditions

The strawberry, a member of the Rosaceae family, is one of the most significant fruit crops due to its widespread cultivation and the high appreciation it garners for its distinctive aroma, bright red colour, juicy texture and delightful sweetness. A field study was conducted during 2021-2022 to assess “the influence of different fertigation levels on the functional quality characteristics of 3different strawberry (Fragaria ×ananassaDuch.) varieties cultivated under protected conditions”. The study employed a Factorial Randomized Complete Block Design, encompassing 12 treatment combinations, replicated3times.The application of 100% RDF of NPK significantlyimpacted the functional quality characteristics of strawberries. The findings indicate that the highest values for total soluble solids (11.00 ºBrix), total sugars (7.70%), reducing sugars (5.40%), non-reducing sugars (2.31%), TSS: acidity ratio (14.28), juice content (45.32%), fruit pH (3.79%), antioxidants (0.19%), phenols (1.20%), fruit volume (12.89 cm3), fruit firmness (1.68 kg/cm2), specific gravity (1.04 g/cc)and shelf life (2.24 days) were observed under the fertigation level F3 (100% RDF of NPK).Additionally, minimum acidity (0.77%) and minimum physiological loss in weight (5.36 g) were also recorded at this fertigation level. The aim of this study is to enhance fruit production, increase yields and extend the shelf life of strawberries. By exploring factors such as fertigation levels and cultivars, this study provides valuable insights that promote sustainable and efficient practices. These findings hold promise for shaping the future of strawberry cultivation, facilitating increased yields and prolonged preservation.

Intelligent Chinese Typesetting Model Based on Information Importance Can Enhance Text Readability

In today’s era of information overload, efficiently extracting valuable information from a large volume of textual data has become a crucial challenge in reading. This study aimed to explore the enhancement of Chinese readability in the digital domain through intelligent typesetting method. This study involved two experiments. The purpose of the first experiment was to achieve the machine learning-based assessment of the importance of individual words in Chinese articles and to automate typesetting based on the importance of words. For the second experiment, readability tests and eye-tracking reading tests were performed and the reading performance and reading attention between intelligent typesetting and general typesetting style was compared. This work proposed three Chinese typesetting methods that distinguished the importance of Chinese text information, based on font size and color. The results showed that first, when reading Chinese text, visual attention was more likely to be drawn to larger font sizes, darker brightness, or warmer-colored characters. Second, intelligent Chinese typography that distinguishes information importance through font size, color brightness, and color hue can enhance Chinese reading comprehension accuracy and subjective evaluation. It was concluded that using the TextRank model to distinguish importance of Chinese vocabulary and intelligent typesetting methods based on visual features of font could obviously improve text readability. Specifically, readability achieved through intelligent typesetting method distinguishing information importance through font color brightness surpasses that of general typesetting significantly. These intelligent typesetting methods can be widely applied in Chinese reading scenarios, such as web pages, e-books, information visualization, and other Chinese reading contexts.

NFL’s dangerous strategies of marketing football to youth: shades of big tobacco

ABSTRACT Comparisons have been made between the tobacco industry’s historic tactics in defending their products with the responses of some key actors in the sports world to head injuries. Both, it is said, have deployed deceptive marketing and advertising techniques to entice youth to engage with a subjective pleasure-producing product that has undeniable short- and long-term health detriments. Unlike what is called euphemistically, ‘Big Tobacco’, however, the National Football League (NFL) has evaded legal restrictions on the promotion of an inherently dangerous product that targets youth. By contrast, in 1997, the Federal Trade Commission charged tobacco company R.J. Reynolds with violating federal law by using a cartoon character, Joe Camel, to allure children under age 18. The NFL has partnered with Nickelodeon to produce programs such as NFL Rush Zone and NFL Slimetime that target youth by using cartoon mascots, bright colors, 3D iconography, and other child-friendly symbols. In addition to fostering positive associations between tackle football and cartoons, these broadcasts have explicitly minimized the risks of tackling. For example, one NFL Playoffs on Nickelodeon announcer equated a forceful head collision with a scrape of the knee that a child might experience during school recess. The NFL’s marketing strategies deflect public attention away from the risks of repetitive head collisions, concussions, traumatic brain injury (TBI), and chronic traumatic encephalopathy (CTE), portraying football as an appealing activity. The ongoing connections between the NFL and youth-oriented television programming raise crucial questions about how risk is communicated in a sport with inherent dangers of long-term cognitive damage. As long as tackle football is portrayed alongside beloved cartoon characters such as Spongebob Squarepants, impressionable children are likely to form undilutedly positive perceptions of the NFL and ignore the substantial risks of repeated, full-body collisions when enchanted by brightly-colored slime, animated bubbles, and goofy dance moves.

Is there an intergenerational discrepancy in the comprehension and aesthetic preference regarding emoji usage? Evidence from WeChat.

Emojis are widely used on social media, blogs, and instant messaging to express users' feelings. However, in everyday interactions, the same emoji often has different interpretations and aesthetic preferences among different age groups. This can lead to communication barriers and misunderstandings. Based on social identity theory, this study uses WeChat, a social platform popular in China, to analyze intergenerational differences in emoji understanding and preferences through a questionnaire survey. The results indicate: (1) There are significant intergenerational differences in the usage habits, interpretation, and aesthetic preferences of emojis. (2) Middle-aged and elderly tend to interpret goodbye emoji symbols as simple emotional expressions, such as "goodbye" or "see you later," while younger-age groups lean towards more complex emotions and social intentions, such as "speechlessness" and "end of friendship." (3) Younger-age groups use emojis frequently and with a wide variety, whereas middle-aged and elderly groups use emojis less frequently and with limited variety. Younger individuals' aesthetic preferences for emojis lean towards humor, conflict, and narrative, whereas middle-aged and elderly groups prefer emojis with bright colors and everyday greetings typical of their generation. Based on research findings, we believe that social identity theory provides a framework for understanding how individuals establish their identities through interactions with specific social groups. This study is beneficial for identifying the comprehension and aesthetic biases in emoji usage across generations, sheds light on the broader implications of social identity theory in digital communication contexts, and promotes friendly social interactions in real-time communication applications.

Solid-state brightness and Al3+ ions-triggered flower-shaped nano-luminogen for cascade detection of Al3+ and PO43− ions

Solid-state photoluminescence materials have come out as an emergent material for their versatile optoelectronic applications. In the present contribution, a novel fluorescent probe, HMNS has been introduced which exhibits bright orange color photoluminescence when exposed to a 365 nm UV lamp and with a few drops of dimethyl sulfoxide (DMSO), it can be used as photoluminescence security ink. Further, HMNS is utilized for quickly and accurately detecting Al3+ ions in a water-DMSO (1:1, v/v) media displaying Al3+ ions-triggered aggregation-induced emission (AIE). Scanning electron microscopy and dynamics light scattering investigations revealed that HMNS from Al3+ ions triggered flower-shaped nano-luminogen. Probe HMNS can detect Al3+ ions within μM range and also the probe binds with Al3+ ions under physiological pH. The reaction time to Al3+ ions is only a few minutes (around 6–7 min). The development of J-aggregates and chelation-enhanced fluorescence (CHEF) in the water-DMSO (1:1, v/v) media may be responsible for the AIE behavior. Additionally, using the Al3+ ions triggered HMNS nano-luminogen could be used as a "marker-ink" which could be used as printing material to decipher secret data under UV light. Also, to determine its reversibility and reusability, the tested paper was washed with a PO43− ions solution. A notable decrease in the code's intensity indicates that this material can be used repeatedly. Moreover, the probe is suitable for on-site identification when employed in test strips with better Al3+ ions selectivity. We have also used a smartphone-based method to demonstrate the usefulness of HMNS for the immediate quantification and detection of Al3+ ions. In light of this, probe HMNS is a trustworthy on-site monitoring fluorescence probe that can accurately identify Al3+ and PO43− ions successively even when some other metals and anions compete.

Packaging of disposable vaping products and e-liquids in England, Canada and the United States: A content analysis.

Vaping product packaging is varied and often features bright colours and novel designs, particularly among recently marketed disposable vapes. This study provides an overview of attributes found on the packaging of popular disposable vapes and e-liquid bottles in England, Canada and the United States (US) and assesses compliance with local packaging regulations. Content analysis. Brick-and-mortar and online shops in England (London), Canada (Ontario) and the US (New Hampshire and South Carolina). 108 vaping products (including packaging) from 76 brands in a range of flavours and nicotine levels. Specifically, 48 disposable vapes (15 from England, 16 from Canada, 17 from the US) and 60 e-liquid bottles (20 per country). Textual and graphic branding and marketing elements, independently coded by two researchers and checked by a third. Compliance with local packaging regulations varied across countries. Health warnings were present on the packaging of all but one nicotine-containing product, although 33% of disposables and 17% of e-liquids featuring the warning did not adhere to formatting requirements. Leaflets were seldom included with e-liquid bottles, even in England (45%) where mandatory, and omitted elsewhere. Labelling of nicotine type and batch numbers was inconsistent. Vaping product packaging featured claims relating to sensory perceptions (41%), most often flavours, and some (32%) featured youth-appealing content. Common graphic elements included stylised brand fonts (80%), brand logos (54%), product representations on the external packaging (47%) and abstract graphic elements (64%). Colours on packaging, disposable vapes and e-liquid bottles were associated with product flavour. In England, Canada and the United States, popular disposable vapes and e-liquid bottles appear to have varying compliance with local packaging regulations and inconsistent labelling of nicotine and product characteristics. The use of colourful designs, evocative descriptors and appealing graphics to promote flavours underscores the need for comprehensive packaging regulations and enforcement.

Bi3+/Eu3+ Co‐Activated Multimode Anti‐Counterfeiting Material with White Light Emission and Orange‐Yellow Persistent Luminescence

AbstractTraditional anti‐counterfeiting luminescent phosphors are usually composed of single‐mode photoluminescence materials, which greatly limits the security of encryption by its static fluorescent pattern. Herein, multi‐mode luminescence properties are achieved including fluorescence and persistent luminescence (PersL) within single host by co‐doping Bi3+ and Eu3+ in CaNaSb2O6F (CNSOF). A tunable emission is observed from blue (Bi3+, 3P1→1S0) to white and then to orange‐yellow (Eu3+, 5D1→7F2 and 5D0→7F0, 1, 2, 3, 4) as the excitation schemes, environment temperatures and doping level are modulated. Impressively, the blue emission attributed to the Bi3+ rapidly disappears after stopping the excitation light irradiation, and only the intense orange‐yellow PersL produced by Eu3+ can be observed. And a possible model for the energy transfer and PersL mechanism is proposed by the investigation crystal structure and photoluminescence/PersL. A schematic of security logo and digital information encryption is demonstrated using the prepared samples, which shows the dynamic evolution of the emission color and PersL brightness. The excellent property of multiple color outputs, different decay processes, and external field stimulation modes (including low energy light, thermal, and mechanical stimuli) present in CNSOF:Bi3+, Eu3+ provides a fast, low‐cost, and effective method for advanced anti‐counterfeiting and information encryption applications.

Structural Color Enhancement through Synchronizing Natural Convection and Marangoni Flow in Pendant Drops.

Structural color, renowned for its enduring vibrancy, has been extensively developed and applied in the fields of display and anticounterfeiting. However, its limitations in brightness and saturation hinder further application in these areas. Herein, we propose a pendant evaporation self-assembly method to address these challenges simultaneously. By leveraging natural convection and Marangoni flow synchronization, the self-assembly process enhances the dynamics and duration of colloidal nanoparticles, thereby enhancing the orderliness of colloidal photonic crystals. On average, this technique boosts the brightness of structural color by 20% and its saturation by 35%. Moreover, pendant evaporation self-assembly is simple and convenient to operate, making it suitable for industrial production. We anticipate that its adoption will remarkably advance the industrialization of structural color, facilitating its engineering applications across various fields, such as display technology and anticounterfeiting identification.

Effect of microwave combined with ultrasonic pretreatment on the flavor of composite stewed soup‐stock

AbstractIn order to increase the content of flavoring components and nutrients in the stock, effects of microwave (MW) combined with ultrasonic pretreatment on water‐soluble proteins, flavor nucleotides, volatile gas constituents and sensory evaluation in the stewed stock were explored. The results showed that, compared with the control group (CK), MW, and ultrasonic (US) pretreatment could significantly promote the degradation of nucleotides and form a large number of 5′‐flavor nucleotides. The combined treatment of MW and US promoted protein hydrolysis and increased the content of water‐soluble protein. The microwave combined ultrasonication pretreated stew stock had the brightest color and the overall sensory score was better than that of the CK. In addition, GC–MS analysis showed that a total of 49 volatile substances were detected in the stock samples. After microwave combined ultrasonication pretreatment, the relative contents of aldehydes and alcohols in the stock increased significantly. The sensor response value of the electronic nose was the highest, indicating that the intensity of flavor characteristics increased. Therefore, MW combined with ultrasonic pretreatment can effectively promote the formation and dissolution of nutrients, and increase the content of flavorful nucleotides and volatile gases.Practical applicationThis study provides a novel processing method for traditional stewed stock. Ultrasonic combined with MW treatment can quickly degrade the protein in the raw material and dissolve it into the stock. At the same time, it promotes the formation of flavor nucleotides and accelerates the Maillard reaction to produce more flavor substances. The technology has the advantages of short processing time, environmental protection and safety. It can be used as a potential pretreatment technology to regulate the flavor of stock‐soup.

Marketing mix analysis of JOSS organic rice based on consumer acceptance

Abstract The Special Region of Yogyakarta has the potential to develop organic rice, both from organic rice production and the organic rice market. JOSS Organic Rice is a superior organic rice product in the Special Region of Yogyakarta because it is a pilot project in the Kulon Progo Regency Government program. This research aims to analyze consumer preferences and marketing strategies based on the marketing mix for JOSS (Jatisarono Organik Sehat Sejahtera) Organic Rice market in Yogyakarta. Consumer preferences refer to people or groups’ personal likes, desires, and tendencies when they choose between various goods, services, or experiences. Marketing mix consists of four attributes, there are attributes product, price, place and promotion. Marketing mix analysis is carried out using descriptive analysis, using a combination of primary and secondary data analysis methods to identify factors that influence the analysis of each variable in the marketing mix. Primary data was obtained through direct surveys of consumers, while secondary data was obtained from previous research, regional statistical data and company data. The result of research shows that consumer preferences for JOSS organic rice are still dominant in product attributes and affordable price attributes. Based on marketing mix analysis, it shows that organic rice consumers in the DIY region prefer product attributes that have a bright white bright white color with total 36 consumers (76.6%) and rice which has a high level of rice integrity with total 44 consumers (93.6%). Place attributes of rice are easy to get in shops and supermarkets. Affordable price attributes and many price choices according to packaging weight. Organic rice is placed at the introductory stage in the product life cycle. It is hoped that the results of this research will provide important insights for JOSS Organic Rice producers and other organic rice business actors to pay more attention to the current condition of their products so they can implement more effective and sustainable marketing strategies to support growth. organic rice industry in the Special Region of Yogyakarta.

FROM STAMPS TO STICKERS: THE EVOLUTION OF CHILDREN’S COLLECTIONS IN THE DIGITAL

Abstract : The growth of online shopping has created new opportunities for selling children’s products. This research paper explores the creation of an e-commerce website specifically for kids’ collections. The goal is to design a site that is fun, safe, and easy to use for both children and their parents. By focusing on kid-friendly design, useful shopping features, and strong security, this study addresses the unique needs of this market.The research method involves gathering user requirements through surveys and focus groups, followed by a step-by-step design and development process. The website is built using popular web technologies like HTML, CSS, JavaScript, and React. The site’s structure is carefully planned to ensure ease of use and efficiency.Special attention is given to user experience and interface design, using bright colors, simple navigation, and interactive elements to keep children engaged. Key features of the site include clear product listings, an easy-to-use shopping cart, a simple checkout process, and tools for parents to monitor their children’s activities.Security and privacy are prioritized to protect children’s data. The website is tested with real users to ensure it is easy to use and works well on different devices. Regular security checks are conducted to keep the site safe. Index term : HTML, CSS, JavaScript, and React, ,Deep learning , Machine learning, python, Django.

Abstract Art as an Inspiration to Create Textile Patterns through Computer Aided Designing

Art breaks away from the traditional representation of everyday objects and familiar subjects. The viewer is not distracted by meaningful images, so the mind is stirred into felling the energy and spirit of a design. Art does not reflect any form of realism, in fact, it breaks the rules. This study aimed at creating unique patterns for textiles through computer-aided design by taking abstract art as a source of inspiration. It was completed in three phases. First phase comprised of a selection of various inspirational themes from Abstract Art. In the second phase, an experimental approach was taken by developing various patterns through a range of colours and layouts to discover the best and most suitable for the end products. The created patterns were then applied to each category of apparel as 2D and 3D models through Adobe Illustrator and Adobe Photoshop. In the third phase, an online survey was conducted to investigate the market demand of consumers towards developed designs. The results showed that 60% respondents strongly appreciated the uniqueness of design, 56% respondents liked the colour scheme, and 62% of respondents preferred to have this design in their wardrobe. 57% respondents were strongly agreed that the principles of design were well balanced. It was concluded that Marbling Abstract art becoming more popular pattern for apparel due to its bright colour shades, different lines and triangle shapes which attract the participants. The study will be beneficial for the textile designers to opt for multiple categories from abstract art for developing patterns in apparel.

Reflectivity and Angular Anisotropy of Liquid Crystal Microcapsules with Different Particle Sizes by Complex Coalescence.

Cholesteric liquid crystal microcapsules (CLCMs) are used to improve the stability of liquid crystals while ensuring their stimulus response performance and versatility, with representative applications such as sensing, anticounterfeiting, and smart fabrics. However, the reflectivity and angular anisotropy decrease because of the anchoring effect of the polymer shell matrix, and the influence of particle size on this has not been thoroughly studied. In this study, the effect of synthesis technology on microcapsule particle size was investigated using a complex coalescence method, and the effect of particle size on the reflectivity and angular anisotropy of CLCMs was investigated in detail. A particle size of approximately 66 µm with polyvinyl alcohol (PVA, 1:1) exhibited a relative reflectivity of 16.6% and a bandwidth of 20 nm, as well as a narrow particle size distribution of 22 µm. The thermosetting of microcapsules coated with PVA was adjusted and systematically investigated by controlling the mass ratio. The optimized mass ratio of microcapsules (66 µm) to PVA was 2:1, increasing the relative reflectivity from 16.6% (1:1) to 32.0% (2:1) because of both the higher CLCM content and the matching between the birefringence of the gelatin-arabic shell system and PVA. Furthermore, color based on Bragg reflections was observed in the CLCM-coated ortho-axis and blue-shifted off-axis, and this change was correlated with the CLCM particle size. Such materials are promising for anticounterfeiting and color-based applications with bright colors and angular anisotropy in reflection.

2D Photonic Colloidal Liquid Crystals Composed of Self-Assembled Rod-Shaped Particles.

Photonic crystals, characterized by their periodic structures, have been extensively studied for their ability to manipulate light. Typically, the development of 2D photonic crystals requires either sophisticated equipment or precise orientation of spherical nanoparticles. However, liquid-crystalline (LC) materials offer a promising alternative, facilitating the formation of periodic structures without the need for complex manipulation. Despite this advantage, the development of 2D photonic periodic structures using LC materials is limited to a few colloidal nanodisk liquid crystals. Herein, 2D photonic colloidal liquid crystals composed of biomineral-based nanorods and water is reported. The soft photonic materials with 2D structure by self-assembled LC colloidal nanorods are unique and a new class of photonic materials different from conventional solid 2D photonic materials. These colloids exhibit bright structural colors with high reflectance (>50%) and significant angular dependency. The structural colors are adjusted by controlling the concentration and size of the LC colloidal nanorods. Furthermore, mechanochromic hydrogel thin films with 2D photonic structure are developed. The hydrogels exhibit reversible mechanochromic properties with angular dependency, which can be used for an advanced stimuli responsible sensor.

Characteristics of Pumice from Cicurug and Its Application as a Bleacher for Crude Palm Oil

Pumice is relatively abundant in Indonesia, especially in Cicurug District, Sukabumi. Pumice has unique characteristics, so it has the potential to be an alternative bleaching agent or a bleacher for crude palm oil. Bleaching is one of the stages in processing crude palm oil into palm cooking oil. In the cooking oil industry, the bleaching of crude palm oil generally uses bentonite as a bleacher. This research aims to determine the characteristics of pumice and the optimum conditions for the bleaching process of crude palm oil with pumice as a bleacher. The research method consists of pumice activation, activated pumice characterization, degumming of crude palm oil, bleaching of crude palm oil, and analysis of processed palm oil. The results show that the metal oxide composition in activated pumice is dominated by silica (62.99%) and alumina (14.79%) and has a non-uniform pore size distribution. Optimum bleaching conditions are achieved when using 30% pumice and a bleaching temperature of 105 oC for 30 minutes. Under optimal bleaching conditions, pumice can reduce the color brightness level of crude palm oil from 600 to 125 mg/L Pt, or a bleaching power of 79.2%.

Influence of Critical Parameters on the Extraction of Concentrated C-PE from Thermotolerant Cyanobacteria.

This work aimed to identify the influence of pH, molarity, w/v fraction, extraction time, agitation, and either a sodium (Na2HPO4·7H2O-NaH2PO4·H2O) or potassium buffer (K2HPO4-KH2PO4) used in the extraction of C-phycoerythrin (C-PE) from a thermotolerant strain of Potamosiphon sp. An experimental design (Minimum Run Resolution V Factorial Design) and a Central Composite Design (CCD) were used. According to the statistical results of the first design, the K-PO4 buffer, pH, molarity, and w/v fraction are vital factors that enhance the extractability of C-PE. The construction of a CCD design of the experiments suggests that the potassium phosphate buffer at pH 5.8, longer extraction times (50 min), and minimal extraction speed (1000 rpm) are ideal for maximizing C-PE concentration, while purity is unaffected by the design conditions. This optimization improves extraction yields and maintains the desired bright purple color of the phycobiliprotein.

The World of Color in I.A. Bunin's short story "Henry": coloratives and sense of Motherland

The composition, semantics and functioning of words with color meanings (coloratives) are of interest to researchers specializing in various fields of scientific knowledge. The relevance of studying this group of words is determined with an important trend: to describe the facts of culture fixed in the units of the language, as well as to highlight culturally significant information in them. This tendency is manifested in the study of the writer's language. The analysis of coloratives, their composition and role in Ivan Bunin's multi-genre works is actively conducted, but it is often carried out without focusing on a specific work of art. The article analyzes the coloratives functioning in the text of the story «Henry» (a collection of short stories «Dark Avenues»), which is called a gloomy, or twilight, story. The analysis showed that the writer uses about 120 coloratives in the text of the story, most of which denote bright («daytime») colors (Rus. лиловый, индиго, янтарно-коричневый, цвета луковой шелухи). The nature of the selection of words naming the main colors of the spectrum and their shades in the text of the story shows the author's likes and dislikes. Semantic, lexicographic and linguocultural analysis of landscape and portrait descriptions is carried out against the background of materials from the National Corpus of the Russian language (the Main and Poetic subcorps). The analysis has shown that the coloratives become for the author not only a means of accurately and figuratively describing the world around them, but also a way of expressing the hero's condition and his attitude towards Russia and Europe.

Pattern Matters in the Aposematic Colouration of Papilio polytes Butterflies.

Many toxic animals display bright colour patterns to warn predators about their toxicity. This sometimes leads other sympatric palatable organisms to evolve mimetic colour patterns to also evade predation. These mimics, however, are often imperfect, and it is unclear how much their colour patterns can vary away from the model before they become ineffective. In this study, we investigated how predation risk of the palatable Common Mormon butterfly (Papilio polytes) is affected by two alterations of its wing pattern that make it progressively more distinct from its model, the Common Rose (Pachliopta aristolochiae). We deployed butterfly paper models in the field, where all models displayed the same colours but had different patterns. In the first modification from the Wildtype pattern, we exchanged the position of the red and white colour patches but kept the overall pattern constant. In the second modification, we created an eyespot-like shape from the pre-existing pattern elements by moving their positions in the wing, altering the overall wing pattern. Both modifications increased attack risk from predators relative to Wildtype patterns, with the eyespot-like modification having the highest predation risk. Our results show that avian predators can distinguish between all three patterns tested, and that pattern is important in aposematic signals. Predators learn to avoid aposematic colours, not in isolation, but as part of specific patterns.