Marking Patterns Research Articles

Laser wounding pattern in relation to vascular tissue development for the stimulation of adventitious root formation in rose cuttings

The stimulation of adventitious root formation from laser-wounded rose cuttings in our previous study suggests that exposing the phloem proximities is one of the most relevant aspects for a positive effect on rooting response. But, the specific dimensions that wound patterns must fulfill to optimize rooting promotion remain unknown. This study analyzed the effect of wounded area and wound perimeter of laser marking patterns on the development of phloem, xylem, and callus using cross sections of single-leaf cuttings of Rosa canina 'Pfänder'. Four distinct laser patterns were designed and marked along the cutting base. Among these, three patterns were based on longitudinal strips, while one pattern was characterized by small squares, resulting in two distinct wound area levels and four wound perimeter levels. Periodic evaluations of stem sections showed that the development of phloem and xylem was significantly influenced by the pattern's geometry. Larger dimensions of xylem were associated with patterns of greater area and a smaller perimeter, while an increase in phloem was related to patterns of longer perimeter distributed in smaller areas. The maximum rooting success in wounded cuttings reached 44% in contrast to 9% observed in the control group in the absence of additional wounds. The development of vascular tissue was significantly correlated with adventitious rooting, with phloem being more closely linked with a Pearson coefficient of 0.92 compared to 0.30 for xylem. Additionally, a negative Pearson coefficient of −0.92 between the ratio area: perimeter and adventitious root formation showed that laser patterns with large wounded area with less borders led to a reduced rooting response. The results provide evidence of how wounded tissue contributes to the intrinsic development of adventitious roots and reveal the importance of proper wound dimensions.

Comparison of Authorial Stance Between Professional and Amateur Writers in Scientific Correspondence Writing

Writing argumentative correspondences is an art requiring linguistic and rhetorical skills to bring forth the ultimate effect of persuading the audience. However, instruction of this critical language art has been underrepresented in Thai tertiary educational contexts. This study is based on an interventional experiment of teaching an ESP-Science course to 40 students majoring in science, with a strong emphasis on linguistic devices for academic interaction, consisting of stance and engagement marking, as elaborated in Hyland (2005a, 2005b). The interventional experiment made use of the 240 correspondences taken from the scientific journal Nature with the duration of 30 hours over a 10-week period. This study reports the findings from a comparison of the students’ writing before and after the intervention and a comparison of the students’ post-experiment writing and the experts’ writing. The analysis is based on content analysis, inter-rater assessment, and descriptive statistics, and shows that a meaningful level of progress has been obtained as a result of the intervention. The progress is evident in not only that students’ post-experiment writing exceeds in quality their pre-experiment writing, but also that students’ post-experiment writing has become similar to the expert writing to a great extent, with respect, in particular, to the strategic patterns of stance and engagement marking. The success of a relatively short intervention, i.e., 10 weeks, calls for implementation of courses using authentic correspondences in ESP-Science classes, or more broadly, in ESP courses in diverse disciplines (237/250).

Temporary Road Marking Paint for Vehicle Perception Tests

In order to test camera- and LiDAR-based perception of road markings for automated driving, vehicle developers have started to utilize concepts for the agile alteration of road marking patterns on proving grounds. Road marking materials commonly used within this concept are different types of tape that can easily be applied and removed on asphalt and concrete. Due to the elasticity of tape, it cannot be used efficiently for small radii, symbols, lettering, and specific corner shapes (e.g., for parking slots). These road marking patterns are common in urban environments. With the growing capability of automated driving systems and more applications for urban environments, edgy road marking shapes gain importance for proving ground testing. This study examines the use of water-soluble road marking paint specifically designed for the use case of temporary applications on proving grounds for camera- and LiDAR-based perception testing. We found that white, water-soluble paint with 1.5% binder content and 2.25% coalescing agent content can provide realistic road markings for vehicle testing purposes. However, solubility affects the paint’s vulnerability to fading during rain. Hence, renewal activities over the course of longer test drives might be necessary. The paint could be removed using water pressure without significant residue or damaging of the asphalt.

Tensile Specimen Circular Grid Pattern and AI-Based Strain Calculation Method

During tensile testing of materials, strain measurement is conducted using either contact or non-contact methods. Contact methods offer high accuracy and precision but are limited by the specimen’s thickness and dimensions, whereas non-contact methods minimize damage to thin specimens and allow measurements in various environments, though they require longer preparation and calculation times. This paper proposes a circular grid marking pattern and a strain prediction algorithm using artificial intelligence (AI), which simplifies the preparation process and allows strain prediction without additional equipment. The circular grid pattern can be arranged in various configurations from 1 × 5 to 5 × 7, and a laser marker, which requires minimal time, was used to engrave the pattern on the specimen to shorten the preparation time. The AI model, trained on image-based data, enables strain calculation regardless of the specimen’s gauge length and size, and allows measurement of local strain as well as gauge-length strain. The reliability of this concept was verified by applying it to tensile testing.

The fishing cat: New insights on distribution in the northern sector of Chitwan National Park, Nepal

Fishing cat Prionailurus viverrinus (Bennett, 1833) is an elusive and medium-sized feline species with distinguished marking patterns on their head and body separating them from other feline species. Despite being distributed widely among diverse geographic locations, their abundance has declined due to significant habitat loss and human disturbances. There exists a substantial research gap regarding their abundance and distribution in Nepal. In this article, we presented the updated documentation of the fishing cat distribution in the northern sector of Chitwan National Park through our species-focused camera trapping survey. The study was carried out between April and May 2021 with a total of 130 camera trap nights. We obtained images of fishing cats from three camera trap sites, less than one kilometer of aerial distance from the human settlements, indicating that the species could also be extensively using human-dominated landscapes within and around the parts of CNP. Our research also found that fishing cats are residing close to the Rapti riverbed where seasonal shallow water holes are more common, allowing them to hunt their prey easily.

Expressions of epistemic stance in computer-mediated L2 speaking assessment

Abstract Learner and L2 user corpora are increasingly valued in language testing and assessment as they can inform test design, revision, and validation. This paper illustrates the benefits of using an L2 corpus to explore patterns of epistemic stance marking in computer-mediated speaking tests with no live human interlocutor. Drawing on the British Council-Lancaster Aptis Corpus – comprising over 630,000 words of L2 speech – we explored the frequency of epistemic stance markers (adverbial, adjectival and verbal) across proficiency levels and speaking task types. The analysis revealed that epistemic stance was prevalent in test-taker discourse and that frequency was influenced by L2 proficiency and task type. The findings demonstrate that computer-mediated speaking tests can elicit expressions of epistemic stance in a comparable way to tests which involve human-human interaction. Implications are drawn for examiner training, test preparation, and an enriched understanding of the elements of pragmatic competence that can be elicited in computer-mediated speaking assessment.

Integrative taxonomy of the featherback fish genus Chitala (Osteoglossomorpha: Notopteridae) in Peninsular Malaysia

AbstractThe taxonomy of the freshwater featherback fish genus Chitala (Osteoglossomorpha: Notopteridae) remains unsettled because delimiting and naming Chitala species based solely on morphology led to different hypotheses. In this study, we aim to determine the number and identity of Chitala species present in Peninsular Malaysia by employing an integrative taxonomic approach that combines morphology and two mitochondrial markers: the cytochrome c oxidase subunit I (COI) and cytochrome b genes. A total of 60 specimens of Chitala were collected throughout Peninsular Malaysia. Initially, all specimens were sorted into three distinct categories based on their body marking patterns. A molecular phylogenetic analysis revealed that each of these groups was monophyletic, and an automated species partition method further recognized them as distinct species. These results support the presence of three Chitala species in Peninsular Malaysia, even though a multivariate morphometric analysis failed to fully differentiate each of these three species. Comparison with original species descriptions and genetic data from an additional 70 Chitala specimens from neighbouring regions allowed us to name these species as Chitala lopis, Chitala borneensis, and Chitala ornata. We also showed the presence of two undescribed species in Indonesia.

Conspicuity of staircase configuration: Effects of markings and contrast.

To be able to walk safely up or down a staircase, we must be able to judge the configuration and slope of the staircase and our viewing position. Adding markings to the stairs might help form correct perceptions of the staircase geometry. In this study, we examined how visual judgements about staircase configuration are affected by different marking patterns. Fifteen normally sighted young participants viewed computer-generated images of staircases as seen from the top landing of the stairs. Marking patterns included contrasting baseboard, transverse edge-stripes, longitudinal side-stripes, longitudinal stripes, diamond patterns, longitudinal stripes extended to landing and diamond patterns extended to landing. For comparison, we included the no-marking condition as a control. We tested several contrast levels of marking patterns (3.2%-50%), pitch lines of the staircases (shallow/medium/steep) and viewing positions (left/centre/right). The effect of the overall shape cue of the staircase on participants' performance was also evaluated. We measured participants' accuracies in judging whether the staircase was shallow, medium or steep, and whether the viewing position was located to the left, centre or right. Transverse edge-stripes markings yielded fewer underestimations of slope (9% [transverse] vs. 18% [others]) when compared with other markers. The presence of an overall shape cue helped both slope (67% [presence] vs. 51% [absence]) and viewing position judgements (79% [presence] vs. 62% [absence]). When the overall shape cue was present, only the transverse edge-stripes markings yielded a significant improvement in performance (compared with no-marking condition). When the cue was absent, performance was significantly better with markings with high and moderate contrasts. Adding marking patterns such as high-contrast transverse stripes to stairs may help enhance the visibility of the stairs and judgements of staircase geometry. This might be particularly useful for people with visual impairment or normally sighted individuals under compromised environmental conditions.

Measurement and optimization of writing light field uniformity in dual-galvanometer laser scanning lithography system

The light field uniformity (LFU) in lithography system is a key factor in defining the resolution across the entire micro/nano structures. In this work, a cost-effective and straightforward method based on the focused laser marking on heat-mode resist is proposed for measuring and optimizing the LFU. The factors affecting the LFU are analyzed from the perspectives of optical system aberrations and mechanical assembly error. Subsequently, marking patterns with special structures are designed based on the properties of the heat-mode resist. By analyzing the marked patterns, the LFU of the system is obtained with uniformity coefficient is 42.24%. After optimization achieved by dynamic laser power adjustment, the uniformity coefficient was notably enhanced to 96.11%. This work provides an effective method for measuring and optimizing the LFU in dual-galvanometer laser scanning lithography system.

Do languages spoken in multilingual communities converge? A case study of reflexivity marking in Mano and Kpelle

Abstract This paper explores variation in the patterns of reflexivity marking in the Mano language and possible influence from the Kpelle language by using an experimental design with a picture questionnaire. While Kpelle does not have a morphological distinction between reflexive and basic pronouns, the Mano variety spoken by Mano-dominant individuals does possess such a distinction in 3sg. In contrast, the Mano variety spoken by Kpelle-dominant individuals shows a pattern borrowing from Kpelle into Mano, whereby the basic pronoun is used for both coreferential and disjoint readings. In a bilingual village, however, despite daily usage of both languages, almost all speakers from our sample manifest a uniform pattern that aligns closely with the monolingual Mano pattern of reflexivity marking. Therefore, the intensity of contact alone does not predict the amount of influence of Kpelle on Mano. Contrary to predictions by Labov (2010. Principles of linguistic change. Volume 3, Cognitive and cultural factors. Hoboken: Wiley-Blackwell: 5), we conclude that the languages spoken in a multilingual speech community do not necessarily converge and that a balanced multilingual community may provide enough input to acquire monolingual-like competence, at least according to the specific parameter under investigation. In the long run, however, convergence between Mano and Kpelle could indeed be taking place, with Mano losing its reflexivity contrasts, having already lost the contrast in 3pl.

Verbal marking, intransitivity, and argument structure

Abstract This paper provides an intransitive analysis for an array of predicates which exhibit specific marking patterns in Budai Rukai. Contra previous lexical approaches, it is argued that a verbal prefix found on the predicates instantiates a functional head v, which constructs an intransitive vP. Its spell-out form is conditioned by its interaction with other higher functional categories, including tense, causative, passive, and complementizer. With respect to intransitivity, the resulting vP does not admit an accusative object, and it exhibits unergative, unaccusative, and anticausative properties. Regarding argument structure, these predicates are mostly one-place predicates. The sole argument is the grammatical subject which usually denotes an affected theme or an experiencer.

(Heritage) Russian Case Marking: Variation and Paths of Change

Russian’s six cases and multiple noun classes make case marking potentially challenging ground for heritage speakers. Indeed, morphological levelling, “probably the best-described feature of language loss”, has been substantiated. One study from 2006 showed that Heritage Russian speakers in the USA produced canonical or prescribed markers for only 13% of preposition+nominal sequences. Conversely, another study from 2020 found that Heritage Russian speakers in Toronto produce a 94% canonical case marker rate in conversational speech. To explore the effects of methodological differences across several studies, the current paper circumscribes the context to preposition+nominal sequences in Heritage Russian speech from the same Toronto corpus as used by the 2020 study but mirroring the domain investigated by Polinsky and including a Homeland comparison to consider changes in both the rates of use of canonical case marking and distributional patterns of non-canonical use. Regression models show more canonical case marking in more frequent words, an independent effect of slightly more mismatch by later generations, but less morphological levelling than reported by Polinsky. Lexicon size does not predict case marking rates as strongly as language usage patterns do, but generation, since immigration, is the best-fitting social predictor. We confirm (small) rate changes in Heritage (vs. Homeland) Russian canonical case marking but not in patterns of levelling.

Focus-marking in a tonal language: Prosodic differences between Cantonese-speaking children with and without autism spectrum disorder.

Abnormal speech prosody has been widely reported in individuals with autism. Many studies on children and adults with autism spectrum disorder speaking a non-tonal language showed deficits in using prosodic cues to mark focus. However, focus marking by autistic children speaking a tonal language is rarely examined. Cantonese-speaking children may face additional difficulties because tonal languages require them to use prosodic cues to achieve multiple functions simultaneously such as lexical contrasting and focus marking. This study bridges this research gap by acoustically evaluating the use of Cantonese speech prosody to mark information structure by Cantonese-speaking children with and without autism spectrum disorder. We designed speech production tasks to elicit natural broad and narrow focus production among these children in sentences with different tone combinations. Acoustic correlates of prosodic focus marking like f0, duration and intensity of each syllable were analyzed to examine the effect of participant group, focus condition and lexical tones. Our results showed differences in focus marking patterns between Cantonese-speaking children with and without autism spectrum disorder. The autistic children not only showed insufficient on-focus expansion in terms of f0 range and duration when marking focus, but also produced less distinctive tone shapes in general. There was no evidence that the prosodic complexity (i.e. sentences with single tones or combinations of tones) significantly affected focus marking in these autistic children and their typically-developing (TD) peers.

The role of cognitive schemas in linguistic convergence

Abstract This article reports on some outcomes of language contact and linguistic convergence involving Tibeto-Burman and Indo-Aryan languages in the Northeast Indian state of Nagaland. The primary focus falls on Nagamese, a lingua franca of the region that is undergoing a change in its morphosyntactic alignment typology. Evidence is presented to demonstrate that cognitive schemas are most likely responsible for the spread of replicated case marking patterns from local Tibeto-Burman languages to Nagamese, and that this has triggered a change in the alignment pattern of Nagamese over the past fifty years. The data presented in the paper are significant for demonstrating how language contact and the replication of cognitive schemas can be plausible drivers of grammatical change, even for something as fundamental to the syntax of a language as its morphosyntactic alignment.

Predation of the invasive green crab Carcinus maenas on the edible snail Buccinastrum deforme, targeted as the most important nearshore marine gastropod fishery from Patagonia, Argentina

Biological invasions constitute one of the main problems for the conservation of marine environments and are among the major causes of biodiversity reduction. The green crabs, Carcinus maenas was first reported on the Patagonian Argentinean coast in 2003 and has rapidly spread northwards along the coast. In 2018, many empty shells of the edible gastropod Buccinastrum deforme were observed at the shoreline, showing scars compatible with those caused by crab-crushing predations. This study aimed to evaluate the effect of C. maenas on the edible gastropod B. deforme, a species of great fishing importance in Patagonia, Argentina. In order to characterize the green crab’s predatory marking patterns observed on the shell of B. deforme, aquarium experiments were conducted. At the same time, field sampling census of shells stranded in the intertidal zone were carried out in three different sites where high densities of B. deforme were previously recorded. Empty shells showing the characterized marking patterns were used as an indicator of predation and were randomly collected from the intertidal to quantify the frequency of each type of predatory mark. Additionally, the abundance of snails and crabs was estimated using baited traps in ten sampling sites. Our results are consistent with the fact that the non-native green crab C. maenas presents a highly aggressive behavior that affects native species' abundances once established in a new environment. The most frequent pattern of predation marks was the combined crush of the apex and lip, occurring simultaneously in the same individual. A decrease in B. deforme presence was inversely proportional to the increase in C. maenas populations. This is the first work that records the impact of predation of the invasive species C. maenas on Atlantic Patagonia's sandy bottoms, which negatively affects a fragile species such as the edible snail B. deforme. The dispersal capacity of the green crab, in addition to its predatory strength and voracity, could endanger the artisanal fishery of B. deforme and induce irreversible changes in the coastal ecosystems of Atlantic Patagonia.

Patterns of scent marking by African wild dogs, Lycaon pictus, at shared marking sites

Patterns of scent marking by African wild dogs, Lycaon pictus, at shared marking sites

PRAME/MELAN-A double immunostaining as a diagnostic tool for conjunctival melanocytic lesions: A South American experience

IntroductionPRAME (PReferentially expressed Antigen in Melanoma) is an antigen that is predominantly expressed in human melanomas. In cutaneous melanocytic lesions, PRAME expression is associated with malignancy. The objective of this study was to evaluate the co-expression of PRAME and Melan A to evaluate their diagnostic value in different conjunctival melanocytic lesions (CML). Methods37 CML (23 nevi, 9 primary acquired melanosis (PAM), and 5 conjunctival melanomas) were evaluated by immunohistochemistry for PRAME and Melan-A. The percentage of melanocytic cells co-expressing PRAME and Melan-A was qualitatively evaluated as follows: negative, 0%; 1 + , 1–25%; 2 + , 26–50%; 3 + , 51–75% and 4 + , ≥ 76%. ResultsOf the invasive melanoma cases, 80% showed a 4 + pattern of marking, whereas 20% showed a 3 + pattern. 11% of the PAMs showed a 4 + pattern and 88.9% showed a 1 + pattern. All the nevi showed a 1 + pattern. The sensitivity and specificity of PRAME 4 + for differentiating high-grade CML from the benign and low-grade grouped CML are 93% and 100%, respectively. ConclusionPRAME/MELAN-A double immunostain is particularly useful to differentiate benign from malignant conjunctival melanocytic lesions.

The polymorphism of vespid wasps (Hymenoptera: Vespidae) from Indonesia with morphology-based cladistic

Wasps in the family of Vespidae often have a yellowish black color with white or brown markings, but some species have variations in their markings and coloring. There is limited information available about the distribution of these marking patterns within the Vespidae Family. To clarify their taxonomic status, this study aims to examine the marking patterns of Vespid wasps that are widely distributed in the Indonesian Archipelago and to explore correlations with their biogeographical distribution patterns. In this study, specimens from three different locations (Bandung, Sumedang, and Purworejo) and specimens from the Museum Zoologicum Bogoriense (MZB) were examined. A total of 31 individuals from five different species were analyzed based on their morphological features. The data collected was coded and analyzed using cladistic methods, and the results were used to create cladogram trees for each of the five species i.e., Phimenes flavopictus, Polistes stigma, Apodynerus troglodytes, Vespa affinis, and Vespa velutina, showing their biogeographical distribution. The cladistic analysis in this study showed the relationships between the different species based on their morphological characteristics. The arrangements of the clades were determined using the Euclidean method in R studio. The results showed that P. flavopictus has two clades based on the marking patterns on their thorax and abdomen, while the other species i.e., Po. stigma, V. affinis, V. velutina, and A. troglodytes have three clades based on their coloring and marking patterns on all segments. The distribution of the Vespidae species appears to be scattered, with their patterns randomly distributed among locations.

Filipino Children’s Acquisition of Nominal and Verbal Markers in L1 and L2 Tagalog

Western Austronesian languages, like Tagalog, have unique, complex voice systems that require the correct combinations of verbal and nominal markers, raising many questions about their learnability. In this article, we review the experimental and observational studies on both the L1 and L2 acquisition of Tagalog. The reviewed studies reveal error patterns that reflect the complex nature of the Tagalog voice system. The main goal of the article is to present a full picture of commission errors in young Filipino children’s expression of causation and agency in Tagalog by describing patterns of nominal marking and voice marking in L1 Tagalog and L2 Tagalog. It also aims to provide an overview of existing research, as well as characterize research on nominal and verbal acquisition, specifically in terms of research problems, data sources, and methodology. Additionally, we discuss the research gaps in at least fifty years’ worth of studies in the area from the 1960’s to the present, as well as ideas for future research to advance the state of the art.

Possible Batesian mimicry to sexually different models in the tussock moth Numenes albofascia with a great sexual color dimorphism

AbstractMimicry with warning colors includes Batesian and Müllerian mimicries. If we divide mimicry by sex, there are theoretically four types of mimicry: unimodal, female‐limited, male‐limited and dual mimicry. The latter three cases cause sexual dimorphism in body color and marking pattern but are rarely reported. In this study, we show that the tussock moth Numenes albofascia is possibly a dual mimic. The wing color and marking pattern of male and female N. albofascia are completely different, with the male's pattern resembling that of the smoky moth Pidorus atratus, while the female pattern resembles that of the tiger moth Arctia caja. Body size also differs greatly between the sexes of N. albofascia, matching the mimicry model species of each sex. These moths are distributed sympatrically in Japan, and their adult seasons overlap with each other. According to lizard feeding experiments, N. albofascia is palatable, while both male and female model species are unpalatable. Actograms in the laboratory and the light trapping in the field suggest that females of N. albofascia fly actively from sunset to midnight, while males fly during the twilight period around dawn. Therefore, male and female N. albofascia might be Batesian mimics of diurnally active P. atratus and nocturnally active A. caja, respectively, and the great sexual dimorphism of this moth could be caused by dual mimicry.