bluuebunny/crossref_metadata_2025 huggingface dataset:
THE ADVANTAGES OF ICT ON THE WORLD ECONOMY
Authors:   Tashkent University Of Applied Sciences, Uzbekistan, Maprat Rasuleva , Nodira Aliyeva ,   Tashkent University Of Applied Sciences, Uzbekistan
Published: February 2023

This article provides information and necessary sources and statistics about the development of ICT in recent years, its impact on the global economy, benefits and benefits in the field of commerce, health care, as well as in the macro and micro economy.
ASSESMENT OF YOUTH REPRODUCTIVE HEALTH SERVICE PREFERENCES, ARAB BORDADE HEALTH CENTER GUMBI BORDERED WOREDA WEST HARARGHE, OROMIA REGION, ETHIOPIA
Authors:   West Hararghe Zonal, Gumbi Bordode Woreda Health Office, Bordode, Ethiopia, Gizaw Jegnaw Zenebe , ah Sal ,   School of Public Health, College of Health & Medical Science, Haramaya University, Ethiopia, uel Aman ,   School of Public Health, College of Health & Medical Science, Haramaya University, Ethiopia
Published: February 2023

Introduction; Worldwide, young women and men suffer a disproportionate share of reproductive health problems, such as unplanned pregnancies, sexually transmitted diseases, including HIV/AIDS, and other serious reproductive health problems. Youth Reproductive Health Service is a special gift from the youth age group, young people all over the world are in need of much better education and health care related to reproduction. Methodology; This cross-sectional community based descriptive study was conducted in West Hararghe, Gumbi Bordade woreda Arba Bordade Health Center, with the main objectives of assessing youth reproductive health service preferences and utilization. Based on probability proportionate to the population size of kebele, the lottery method was used to identify the study population by interviewing 239 youth selected by systematic sampling using per-structured questionnaires Result-. A total of 239 youth aged 15-24, 221 responded to the structured questionnaire, out of which 114 (51.6%) were male, with a male to female ratio of 1.14:1. Among the study participants, 140 (63.3%) were aged 15-19, and 38 (17.2%) were married. In the assessment of utilization and preference of the health institution, 96(43.4%) of the respondents preferred to be served in governmental health institution and 69 (31.2%) of the youth indicated the need to rearrange in the existing health institution having separate youth health institution, and 93(42.1%) of the them preferred to be served by young and of the same sex. Conclusions: -A high figure of the youth not served in the existing health institution for their reproductive health needs, even those who used to be served, they claimed that the existing health institutions were inconvenient and unattractive. Almost half of the respondents preferred the need for rearrangement of youth reproductive health institutions separately, and also to be served by young and the same sex health providers. Family health service, sexual education, partner relation guidance, information and education on STD/HIV AIDS and to having an information center were preferred by almost by all respondents.
LABORATORY CHARACTERISTICS OF PATIENTS WITH DIABETES MELLITUS DEPENDING ON THE RISK OF CONTRAST INDUCED AKI
Authors:   Md, Associate Professor Tashkent Pediatric Medical Institute, Tashkent, Uzbekistan, Sh.K. Muminov , B.B. Nigmonov ,   Tashkent Pediatric Medical Institute Tashkent, Uzbekistan
Published: February 2023

Aim of the work: assessment of laboratory characteristics in patients with type 2 diabetes, depending on the risk of developing CI-AKI. Materials and methods: The study included 56 patients with type 2 diabetes, the average age of the patients was 58 years, the CG consisted of 20 healthy volunteers. In most patients, the reason for which the endovascular radiopaque procedure (EVRCP) was performed was associated with atherosclerotic lesions: coronary artery disease, chronic lower limb ischemia (CLLI), atherosclerosis of the brachiocephalic arteries (BCA). EVRCP was performed on the vessels of the coronary basin, BCA, abdominal aorta and its branches, lower extremities. A retrospective analysis included a comparative analysis of two groups of patients with type 2 diabetes who underwent EVRCP: 29 patients who developed CI-AKI (CI-AKI+ group) and 27 patients in whom the post-procedure period was uneventful. Results: The CI-AKI+ and CI-AKI- groups did not differ in nosological distribution: in both groups, half of the patients with EVRCP were performed due to the presence of coronary pathology (51.72% and 48.15%, respectively), the rest in patients it was comparable for CCI and CVD (27.59% and 20.69% in the CI-AKI+ group and 25.93% each in the CI-AKI- group). Conclusion: Thus, based on the results of this study, it was possible to identify risk factors for the development of CI-AKI in patients with DM in the post-procedure period and to develop a scale that allows identifying DM patients predisposed to the development of CI-AKI as a hospital complication of endovascular interventional procedures, which is especially often observed in patients with DM.
THE PHENOMENON OF SEPARATION OF OWNERSHIP AND CONTROL IN CORPORATE LAW
Authors:   Lecturer At Tashkent State University Of Law, Uzbekistan, Saidov Ibrokhim
Published: February 2023

This essay discusses the phenomenon of separation of ownership and control by arguing who is the real owner of company. By discussing the different interests of members this essay identifies that company is considered as real entity which has own interest from its members. This phenomenon is supported by different cases and current legislative norms. [1] The main concern of the modern company is to find whose interest should be issued as primary purpose of the company. Some scholars argued that company and its employees should serve to desires of shareholders who are owner of the company. [2] However, this argument influences the relationship between principal and agent hence agency problems have been concerned as the most unresolved issue of company.
ISSUES OF CRIMINAL LAW REGULATION OF LIABILITY FOR ILLEGAL MARKET OF NARCOTIC DRUGS OR PSYCHOTROPIC SUBSTANCES
Authors:   Associate Professor Of The Department Of Criminal Law Of The Academy Of The Ministry Of Internal Affairs Of The Republic Of Uzbekistan, Rasulev Akbar A.
Published: February 2023

The article provides a theoretical analysis of the norms of the current Criminal Code establishing responsibility for the illegal distribution of narcotic drugs and psychotropic substances, and on its basis the author puts forward his proposals for improving the criminal legislation of the Republic of Uzbekistan.
FEATURES OF THE RIGHTS AND OBLIGATIONS OF SHAREHOLDERS OF COMPANIES (LLC AND JSC)
Authors:   Independent Researcher At Tashkent State University Of Law Deputy Chairman Of Tashkent City Court, Uzbekistan, Norboyevich Saidov Maksubbek , Norboyevich Saidov Maqsudbek ,   Toshkent Davlat Yuridik Universiteti Mustaqil Izlanuvchisi Toshkent Shahar Sudi Raisining O‘Rinbosari, Uzbekistan
Published: February 2023

The article discusses the specifics of the rights and obligations of shareholders in business companies, the search for some problems in the exercise of their rights and ways to overcome them, ways to protect the rights of participants, including judicial protection and a legal mechanism for out-of-court settlement of disagreement between participants. The author discusses the basic rights of shareholders, ways to exercise them, as well as the obligations of shareholders in terms of scientific literature and the doctrine of Uzbek law. The author comes to the conclusion that a shareholder who has not completely contributed to the authorized capital of the company is liable to creditors for the company's debts. He believe that the rights and obligations of the participants should be considered in terms of the organizational and legal form of business entities, as the legislation gives the same rights and obligations to the shareholders of Limited liability companies (LLC) and Additional liability companies (ALC), and they differ from the rights and obligations of shareholders of JSC.
FACTORS OF INCREASING SOCIO-POLITICAL ACTIVITY AND STRENGTHENING THE IDEOLOGICAL IMMUNITY OF YOUTH
Authors:   Independent Researcher, National University Of Uzbekistan, Khonimov Sharofiddin
Published: February 2023

This article discusses factors of increasing socio-political activity and strengthening the ideological immunity of youth
On the interplay between time and space perception in discontinuous stimulus displays
Authors: Kirsch Wladimir
Published: February 2023

The present study examined whether and how the mutual perceptual biases of temporal and spatial information, known as the kappa and the tau effects, depend on the duration and spatial extent of sensory stimulation as well as on the magnitude of spatio-temporal discrepancy. Three small circles were presented in succession at different spatial positions. The time points of presentation and the spatial position of the second circle systematically varied. Participants judged either whether the temporal interval between the first and the second circle was longer than the interval between the second and the third circle (Experiment 1) or whether the spatial distance between the first and the second circle was larger than the distance between the second and the third circle (Experiment 2), or both in separate blocks of trials (Experiment 3). The impact of spatial information on temporal perception (i.e., the kappa effect) increased with velocity of motion presumably imputed by the participants to the static displays and decreased with spatio-temporal discrepancy. No inverse biases (i.e., no tau effects) were observed. These results are considered as an indication that integration of spatial and temporal signals follow the same basic principles as multisensory integration of redundant signals, such as those from vision and touch.
Leishmaniasis mucocutánea en paciente femenina de 10 años de la Amazonia Ecuatoriana. Reporte de caso
Authors: Alvarez Saltos Miguel David , Alvarado Quezada Andrés Eduardo , Nina Inca Sandy Giselle , Choez Abendaño Yoselyn Isabel , Saavedra Sarango Josselyne Adriana
Published: February 2023

La leishmaniasis comprende un conjunto de síndromes clínicos causados por protozoos del género Leishmania.  La infección puede localizarse en la piel y/o el tejido subcutáneo con o sin   adenopatías   regionales (leishmaniasis   cutánea), en   la   mucosa oro nasal (leishmaniasis mucocutánea) o afectar de forma generalizada al sistema mononuclear fagocítico (leishmaniasis visceral) Cada año se diagnostican unos 400.000 nuevos casos de leishmaniasis humana en Asia, África,  países  de  la  cuenca  mediterránea,  Oriente  próximo  y  América.  Cada especie de Leishmania tiene una distribución geográfica específica   y causa unos síndromes clínicos característicos. El presente reporte de caso presenta un paciente de 10 años de edad donde se evidencia lesiones ulcerosas dolorosas ubicadas en la región oral y placas blanquecinas en lengua que impiden la ingesta de alimentos. Recibe tratamiento para la clínica de la paciente utilizando Antimoniato de meglumina con un pronóstico favorable.
Modules for Experiments in Stellar Astrophysics (MESA): Time-dependent Convection, Energy Conservation, Automatic Differentiation, and Infrastructure
Authors: Jermyn Adam S. , Bauer Evan B. , Schwab Josiah , Farmer R. , Ball Warrick H. , Bellinger Earl P. , Dotter Aaron , Joyce Meridith , Marchant Pablo , Mombarg Joey S. G. , Wolf William M. , Sunny Wong Tin Long , Cinquegrana Giulia C. , Farrell Eoin , Smolec R. , Thoul Anne , Cantiello Matteo , Herwig Falk , Toloza Odette , Bildsten Lars , Townsend Richard H. D. , Timmes F. X.
Published: February 2023

We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics (MESA). The new auto_diff module implements automatic differentiation in MESA, an enabling capability that alleviates the need for hard-coded analytic expressions or finite-difference approximations. We significantly enhance the treatment of the growth and decay of convection in MESA with a new model for time-dependent convection, which is particularly important during late-stage nuclear burning in massive stars and electron-degenerate ignition events. We strengthen MESA’s implementation of the equation of state, and we quantify continued improvements to energy accounting and solver accuracy through a discussion of different energy equation features and enhancements. To improve the modeling of stars in MESA, we describe key updates to the treatment of stellar atmospheres, molecular opacities, Compton opacities, conductive opacities, element diffusion coefficients, and nuclear reaction rates. We introduce treatments of starspots, an important consideration for low-mass stars, and modifications for superadiabatic convection in radiation-dominated regions. We describe new approaches for increasing the efficiency of calculating monochromatic opacities and radiative levitation, and for increasing the efficiency of evolving the late stages of massive stars with a new operator-split nuclear burning mode. We close by discussing major updates to MESA’s software infrastructure that enhance source code development and community engagement.
GECAM Localization of High-energy Transients and the Systematic Error
Authors: Zhao Yi , Xue Wang-Chen , Xiong Shao-Lin , Wang Yuan-Hao , Liu Jia-Cong , Luo Qi , Zhang Yan-Qiu , Sun Jian-Chao , Zhao Xiao-Yun , Cai Ce , Xiao Shuo , Huang Yue , Li Xiao-Bo , Zhang Zhen , Liao Jin-Yuan , Yang Sheng , Qiao Rui , Guo Dong-Ya , Zheng Chao , Yi Qi-Bin , Xie Sheng-Lun , Guo Zhi-Wei , Li Chao-Yang , Wang Chen-Wei , Tan Wen-Jun , Wang Yue , Peng Wen-Xi , Zheng Shi-Jie , He Jian-Jian , Wang Ping , Wang Jin , Ma Xiang , Song Xin-Ying , Zhang Hong-Mei , Li Bing , Zhang Peng , Wu Hong , Du Yan-Qi , Liang Jing , Zhao Guo-Ying , Li Xin-Qiao , Wen Xiang-Yang , An Zheng-Hua , Sun Xi-Lei , Xu Yan-Bing , Zhang Fan , Zhang Da-Li , Gong Ke , Liu Ya-Qing , Liang Xiao-Hua , Liu Xiao-Jing , Gao Min , Wang Jin-Zhou , Song Li-Ming , Chen Gang , Zhang Ke-Ke , Han Xing-Bo , Wu Hai-Yan , Hu Tai , Geng Hao , Lu Fang-Jun , Zhang Shu , Zhang Shuang-Nan , Lu Gao-Peng , Zeng Ming , Yu Heng
Published: February 2023

The Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a pair of microsatellites (i.e., GECAM-A and GECAM-B) dedicated to monitoring gamma-ray transients including the high-energy electromagnetic counterparts of gravitational waves, such as gamma-ray bursts, soft gamma-ray repeaters, solar flares, and terrestrial gamma-ray flashes. Since launch in 2020 December, GECAM-B has detected hundreds of astronomical and terrestrial events. For these bursts, localization is the key for burst identification and classification as well as follow-up observations in multiple wavelengths. Here, we propose a Bayesian localization method with Poisson data with Gaussian background profile likelihood to localize GECAM bursts based on the distribution of burst counts in detectors with different orientations. We demonstrate that this method can work well for all kinds of bursts, especially extremely short ones. In addition, we propose a new method to estimate the systematic error of localization based on a confidence level test, which can overcome some problems of the existing method in the literature. We validate this method by Monte Carlo simulations, and then apply it to a burst sample with accurate location and find that the mean value of the systematic error of GECAM-B localization is ∼2.°5. By considering this systematic error, we can obtain a reliable localization probability map for GECAM bursts. Our methods can be applied to other gamma-ray monitors.
Inferring More from Less: Prospector as a Photometric Redshift Engine in the Era of JWST
Authors: Wang 王 Bingjie 冰洁 , Leja Joel , Bezanson Rachel , Johnson Benjamin D. , Khullar Gourav , Labbé Ivo , Price Sedona H. , Weaver John R. , Whitaker Katherine E.
Published: February 2023

The advent of the James Webb Space Telescope (JWST) signals a new era in exploring galaxies in the high-z universe. Current and upcoming JWST imaging will potentially detect galaxies at z ∼ 20, creating a new urgency in the quest to infer accurate photometric redshifts (photo-z) for individual galaxies from their spectral energy distributions, as well as masses, ages, and star formation rates. Here we illustrate the utility of informed priors encoding previous observations of galaxies across cosmic time in achieving these goals. We construct three joint priors encoding empirical constraints of redshifts, masses, and star formation histories in the galaxy population within the Prospector Bayesian inference framework. In contrast with uniform priors, our model breaks an age–mass–redshift degeneracy, and thus reduces the mean bias error in masses from 0.3 to 0.1 dex, and in ages from 0.6 to 0.2 dex in tests done on mock JWST observations. Notably, our model recovers redshifts at least as accurately as the state-of-the-art photo-z code EAzY in deep JWST fields, but with two advantages: tailoring a model based on a particular survey is rendered mostly unnecessary given well-motivated priors; obtaining joint posteriors describing stellar, active galactic nuclei, gas, and dust contributions becomes possible. We can now confidently use the joint distribution to propagate full non-Gaussian redshift uncertainties into inferred properties of the galaxy population. This model, “Prospector-β,” is intended for fitting galaxy photometry where the redshift is unknown, and will be instrumental in ensuring the maximum science return from forthcoming photometric surveys with JWST. The code is made publicly available online as a part of Prospector
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The version used in this work corresponds to the state of the Git repository at commit https://github.com/bd-j/prospector/commit/820ad72363a1f9c22cf03610bfe6e361213385cd.

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Academic Procrastination of Undergraduate Nursing Student: A Cross-Sectional Study
Authors: Budury Syiddatul , Sari Diah Jerita Eka , Widiharti Widiharti , Pramesti Theresia Anita , Hasina Siti Nur
Published: February 2023

BACKGROUND: The learning system carried out online during the COVID-19 pandemic increasingly supports students to delay working on assignments.
AIM: The purpose of this study was to explore the academic procrastination of students during a pandemic.
METHODS: This research using a cross-sectional study research method with 399 nursing students as respondents, data were collected using Google Forms which was circulated online, data were processed using descriptive, Pearson, and linear regression methods.
RESULTS: Pearson’s results show that there is a positive correlation for age, fear of failure, aversiveness of task, difficulty making decisions, dependency, lack of assertion, risk taking, and rebellion against control. The results of the linear regression test showed that aversiveness of task, dependency, and lack of assertion were the strongest predictors of students’ reasons for procrastinating.
CONCLUSION: Academic procrastination by students, if carried out continuously and repeatedly, will have an impact on academic performance, grades, and mental health.
D4.1. List and specifications of EBVs and EESVs for a European wide biodiversity observation network
Authors: Junker Jessi , Beja Pedro , Brotons Lluís , Fernandez Miguel , Fernández Néstor , Kissling W. Daniel , Lumbierres Maria , Lyche Solheim Anne , Maes Joachim , Morán-Ordóñez Alejandra , Moreira Francisco , Musche Martin , Santana Joana , Valdez Jose , Pereira Henrique
Published: February 2023

EuropaBON harnesses the power of modelling Essential Biodiversity Variables (EBVs) to integrate different reporting streams, data sources, and monitoring schemes, and measure biodiversity change across multiple dimensions in space and time. Therefore, EBVs are at the core of the project and form the basis for several of the tasks feeding into the co-design of a biodiversity monitoring system for Europe. In this document, we describe the stepwise process of identifying and specifying the EBVs in the EBV list presented in this deliverable. We further provide a summary of the characteristics of the EBVs identified for EuropaBON, in terms of their desired spatial- and temporal resolutions, as well as the taxonomic/ ecosystem scope to be measured.
Deliverable D6.4 Applications for interoperable access to OpenBiodiv through semantically enhanced queries
Authors: Penev Lyubomir , Dimitrova Mariya , Zhelezov Georgi , Georgiev Teodor
Published: February 2023

To the best of our knowledge, OpenBiodiv is the ﬁrst production-stage  semantic  system running on top  of  a  reasonably-sized biodiversity knowledge graph. It stores biodiversity data in  a semantic interlinked format and oﬀers facilities for working with it (Senderov et Penev 2016, Senderov et al.   2018, Penev et al. 2019, Dimitrova et al. 2021). It is a dynamic system that continuously updates its database as new biodiversity information becomes available by several international biodiversity publishers. It also allows its users to ask complex queries via SPARQL (a query language for semantic graph databases) and a simpliﬁed semantic search interface.

OpenBiodiv was created during two EU-funded Marie Sklodowska-Curie PhD projects: BIG4 (Grant Agreement No 642241) and IGNITE (Grant Agreement No 764840). During those projects, the backend Ontology-0, the ﬁrst versions of RDF converters and the basic website functionalities have been created (see Dimitrova et al. 2021 for overview).

After the start of the BiCIKL project, the entire workﬂow for processing and RDF conversion of full-text articles in XML and Plazi’s treatments in XML has been re-built using up-to-date technological solutions (such as Apache Kaka  and  Elasticsearch)  to  fully  automatise  and speed up the conversion process and to make it trackable and eﬃcient. As a result, the entire graph content has been re-processed and indexed. New user applications described  in Milestone MS27 App speciﬁcations have been discussed and implemented.

The present deliverable describes the newly built workﬂow and tools for data extraction, conversion and indexing and the user applications, created in the BiCIKL project.
Deliverable D3.1 Project logo, marketing pack and website design and development
Authors: Peneva Slavena , Hristova Kristina , Sapundzhieva Anna , Barov Boris , Stoev Pavel , Grudova Margarita , Kostadinova Iva
Published: February 2023

This document presents BiCIKL’s recognizable visual identity, including the project logo, visual identity guide, brochure, poster, document, presentation templates and website design and functionality developed in the ﬁrst three months. These materials will ensure that BiCIKL is communicated eﬀectively and professionally with the aim to raise awareness and build a community from the start of the project.

The modern and user-friendly public website (bicikl-project.eu) provides an easy-to-navigate, continuously updated platform allowing fast access to general information about BiCIKL and its activities, operating on several levels. It also prominently features the participating project partners and Research Infrastructures and their extensive service portfolio.
An acoustic detection dataset of birds (Aves) in montane forests using a deep learning approach
Authors: Wu Shih-Hung , Ko Jerome Chie-Jen , Lin Ruey-Shing , Tsai Wen-Ling , Chang Hsueh-Wen
Published: February 2023

Long-term monitoring is needed to understand the statuses and trends of wildlife communities in montane forests, such as those in Yushan National Park (YSNP), Taiwan. Integrating passive acoustic monitoring (PAM) with an automated sound identifier, a long-term biodiversity monitoring project containing six PAM stations, was launched in YSNP in January 2020 and is currently ongoing. SILIC, an automated wildlife sound identification model, was used to extract sounds and species information from the recordings collected. Animal vocal activity can reflect their breeding status, behaviour, population, movement and distribution, which may be affected by factors, such as habitat loss, climate change and human activity. This massive amount of wildlife vocalisation dataset can provide essential information for the National Park's headquarters on resource management and decision-making. It can also be valuable for those studying the effects of climate change on animal distribution and behaviour at a regional or global scale.

To our best knowledge, this is the first open-access dataset with species occurrence data extracted from sounds in soundscape recordings by artificial intelligence. We obtained seven bird species for the first release, with more bird species and other taxa, such as mammals and frogs, to be updated annually. Raw recordings containing over 1.7 million one-minute recordings collected between the years 2020 and 2021 were analysed and SILIC identified 6,243,820 vocalisations of seven bird species in 439,275 recordings. The automatic detection had a precision of 0.95 and the recall ranged from 0.48 to 0.80. In terms of the balance between precision and recall, we prioritised increasing precision over recall in order to minimise false positive detections. In this dataset, we summarised the count of vocalisations detected per sound class per recording which resulted in 802,670 occurrence records. Unlike data from traditional human observation methods, the number of observations in the Darwin Core "organismQuantity" column refers to the number of vocalisations detected for a specific bird species and cannot be directly linked to the number of individuals.

We expect our dataset will be able to help fill the data gaps of fine-scale avian temporal activity patterns in montane forests and contribute to studies concerning the impacts of climate change on montane forest ecosystems on regional or global scales.
Contributions to the Knowledge of Callichthyidae. III. Corydoras longipinnis sp. n. - a new Callichtyid fish from the Rio Dulce, Argentina (Teleostei: Siluriformes: Callichthyidae)
Authors: Knaak Joachim
Published: February 2023

Eine neue Corydoras-Art (Teleostei: Siluriformes: Callichthyidae) – Corydoras longipinnis sp. n. – aus dem río Dulce in Argentinien wird beschrieben. Artcharakteristisch sind (1) die kurze Schnauze (8,7–6,9 mal in sl, 2,3–1,9 mal in hl), (2) die Anzahl der Knochenplatten in der oberen (dbs) Längsreihe 21 (20–21), (3) die Anzahl der Knochenplatten in der unteren (vbs) Längsreihe 19 (18–20) und (4) die verlängerte Dorsale und Pectoralen der PP. Die Abgrenzung von züchterisch erzeugten langfl ossigen Corydoras cf. paleatus und die eventuelle Zuordnung zur Gattung Scleromystax GÜNTHER, 1864 werden diskutiert.
Hyphessobrycon khardinae sp. n. - a new rosy-tetra from Brazil (Teleostei: Characiformes: Characidae)
Authors: Zarske Axel
Published: February 2023

Hyphessobrycon khardinae sp. n., a new characid fish (Teleostei: Characiformes: Characidae), is described from the surroundings of Tapaua, rio Itaparana, Brazil. The new species belongs according to HOEDEMAN (1954) and G ÉRY (1961, 1978) to the callistus-group, according to WEITZMAN & PALMER (1997) to the „rosy tetra clade“ and is characterized by the following combination of features: (1) two to five broad tri- to quincuspid maxillary teeth, (2) two to three tricuspid premaxillary teeth in the external row, (3) five broad quincuspid premaxillary teeth in the internal row, (4) 31–34 scales in a longitudinal row, (5) body relatively deep (2.62–2.93 times in SL), (6) head relatively short (4.07–4.41 times in SL) and (7) a triangular, horizontal, with the tip to the head directed humeral spot.
Contributions to the Knowledge of Callichthidae (Teleostei: Siluriformes). IV. The lectotype of Corydoras peleatus (Jenyns, 1842)
Authors: Knaak Joachim
Published: February 2023

K NAACK (2007) legte einen Neotypus von Corydoras paleatus (J ENYNS , 1842) fest, nachdem der Lectotypus, welcher von NIJSSEN & ISBRÜCKER (1980) festgelegt worden war, als verschollen gelten musste. Weitere Nachforschungen führten im Internet zu Bildern eines Fisches, der als Lectotypus von C. paleatus bezeichnet wurde. Dabei handelte es sich zweifelsfrei um den Fisch der Syntypenserie, der von NIJSSEN & ISBRÜCKER (1980) als Lectotypus festgelegt wurde. Somit wird die Festlegung des Neotypus hinfällig. Mess- und Zählwerten des wieder aufgefundenen Lectotypus werden mitgeteilt.
Apistogramma barlowi sp. n. - description of a new facultative mouth-brooding cichlid species (Teleostei: Perciformes: Geophaginae) from Northern Peru
Authors: Römer Uwe , Hahn Ingo
Published: February 2023

Apistogramma barlowi sp. n. is described based on a total of 32 specimens from small tributaries of the Rio Ampiyacu near the village of El Pozo, District Santa Maria, Province Mariscal Ramon Castilla, Departamento Loreto, Peru (near 71°55 ́W and 03°10 ́S). Apistogramma barlowi sp. n. is separated from all other Apistogramma species by the combination of over-proportionally large head and jaws, in males lyrate caudal-fin horizontally divided in two colour zones, extended first membranes of the dorsal fin, a distinct breast band in basal part of vertical bar 2 and posterior lateral spot in females, missing caudal peduncle spot, and, unique in Apistogramma, facultative biparental mouth-breeding. Apistogramma barlowi sp. n. is a representative of the Apistogramma-cacatuoides-complex living in small brooks.
Two new hylid frogs (Anura: Hylidae: Litoria) from western New Guinea
Authors: Günther Rainer
Published: February 2023

Two new Litoria species with affinities to the L. nigropunctata species-group are described on the basis of recently collected material from the base of the Wandammen Peninsula and from the Onin Peninsula, western Papua (formerly Irian Jaya), Province of Indonesia. The descriptions include mainly data on morphology, bioacoustics and osteology.
Revision of the Hyphessobrycon heterorhabdus-group (Teleostei: Characiformes: Characidae), with description of two new species from Venezuela
Authors: Garcia-Alzate Carlos , Valencia Cèsar , Taphorn Donald
Published: February 2023

Five valid species of the Hyphessobrycon heterorhabdus-group are recognized as occurring in Venezuela: Hyphessobrycon diancistrus, H. sovichthys, H. fernandezi, and two new species from Caribbean coastal drainages, H. paucilepis and H. tuyensis. A redescription of H. fernandezi is included and a neotype is designated. The distribution of these species is analyzed and a key is provided to aid identifi cation
Apistogramma erythrura sp. n. - a new geophagine dwarf cichlid (Teleostei: Perciformes: Cichlidae) from the río Mamoré drainage in Bolivia
Authors: Staeck Wolfgang , Schindler Ingo
Published: February 2023

Apistogramma erythrura sp.n. is described from the drainage of the lower río Mamoré in the province of Beni in Bolivia. It is most similar to Apistogramma trifasciata, but differs from this species by the complete absence of any abdominal markings below the lateral band. It can be distinguished from all the other described Apistogramma species by the following combination of characters: only two postlacrymal infraorbital lateralis canal pores, fi ve dentary lateralis canal pores, a broad lateral band with even borders that widens posteriorly to a height of at least two and a half scales and extends into the caudal fin without a caudal spot. Adult males usually with a partly or even completely bright red colouration of their rounded caudal fin, extremely produced anterior dorsal-fin lappets and prolonged pelvic-fin fi laments reaching the posterior end of the analfin base.
Early tooth transformation in the paedomorphic Hellbender Cryptobranchus alleganiensis (DAUDIN, 1803) (Amphibia: Urodela)
Authors: Greven Hartmut , Clemen Günter
Published: February 2023

Dentition of the upper and lower jaws and the palate of three larvae of different sizes (29 mm, 47 mm, 53 mm long) and one adult specimen of the paedomorphic Cryptobranchus alleganiensis is described. The 29 mm larvae had ossifi ed, but not fully developed premaxillae and vomeres, partly ossifi ed incomplete palatines, dentaries and still developing coronoids. Teeth were present only on the premaxillae, dentaries and vomeres, but were still not ankylosed to the bones; they were monocuspid and non-pedicellate. However, in the 47 mm larva teeth on all dentigerous bones were bicuspid and pedicellate as typical for urodele teeth after metamorphosis. Thus, paedomorphosis infl uences dentition already in a relatively early time in ontogeny in C. alleganiensis. Such heterochronous effects on dentition obviously occur in different degrees within paedomorphic Urodela and deserve closer attention. Presently, however, knowledge of them is still fragmentary. With the exception of the palatines and the coronoids, which were toothless, praemaxillae, vomeres and dentaries bore a single row of established teeth. Course and number of dental laminae was consistent with the conditions found in other Urodela (a continuous dental lamina in the upper jaw arcade; a discontinuous in the lower jaw arcade and two vomerine dental laminae). However, in contrast to other Urodela we found no signs of dental laminae accompanying the coronoids and the palatines, which explains the total absence of teeth on these bones.
Re-description of Laetacara curviceps (Teleostei: Cichlidae: Cichlinae)
Authors: Ottoni Felipe , Mattos José L. O. , Schindler Ingo
Published: February 2023

Laetacara curviceps is re-described based both on the types and additional material. Laetacara curviceps is similar to both L. dorsigera and L. araguaiae in general appearance and body shape and comparative small size. It is distinguished from its congeners, except for L. dorsigera, by having a dark spot on dorsal fin above trunk bar 5. Laetacara curviceops differs from L. dorsigera by having a deeper head, a longer pelvic-fin spine and no conspicuous red belly in breeding specimens.
Notes on the cranium of the paedomorphic Eurycea rathbuni (STEJNEGER, 1896) (Urodela: Plethodontidae) with special regard to the dentition
Authors: Clemen Günter , Sever David , Greven Hartmut
Published: February 2023

We illustrate the skull, the lower jaw, and especially the dentition of the highly specialized troglobitic salamander Eurycea rathbuni using cleared and stained specimens, scanning electron microscopy, and a few histological sections. Arrangement of the skeletal elements corresponds to earlier descriptions. Dentigerous bones are the fused premaxillae, the vomeres, the palatinal portions of the palatopterygoid in the upper jaw and palate, and the dentaries and coronoids in the lower jaw. Each bone bears a single row of teeth, which are especially numerous and small on the premaxillae and dentaries. Generally, teeth are monocuspid and most are recurved. The dividing zones are unrecognisable to slightly distinct, but do not reach the fully transformed state. Absence or only traces of pedicellation, monocuspidity and an enlarged base are typical for urodele teeth in a relative early stage of development.
A clarification of the status of Indian Chevrotain Moschiola indica in Nepal
Authors: Baral H.S. , Shah Karan , Duckwoth J.
Published: February 2023

International literature generally excludes Nepal from the range of Indian Chevrotain Moschiola indica (Gray, 1852), despite a number of reports and records, some certainly valid, of the genus over the last 150 years. There are no records in the last few decades, refl ecting major habitat loss in the terai and, perhaps, a lack of specifi c search.
A microscopic and microanalytical study (Fe, Ca) of the teeth of the larval and juvenile Ambystoma mexicanum (Amphibia: Urodela: Ambystomatidae)
Authors: Richter Heiko , Kierdorf Horst , Kierdorf Uwe , Clemen Günter , Greven Hartmut
Published: February 2023

We studied the teeth of larvae and one juvenile of the axolotl Ambystoma mexicanum, a urodele species that undergoes partial metamorphosis, by light microscopy of ground sections, backscattered electron imaging and semi-quantitative microanalysis in the scanning electron microscope. By applying these techniques it was possible to identify enamel, enameloid and dentin in the teeth. Iron was found to be present in enamel and enameloid, the concentrations being highest in the enamel. A staining indicative of the presence of iron was observed in the inner dental epithelium of tooth germs. Dentinal tubules mostly followed a straight course, but some recurved over a short distance distally. In larval teeth and teeth of “larval type” in the juvenile individual the dentinal tubules ended in the basal portion of the enameloid. Our results show that in the axolotl, monocuspid teeth of the “larval type” that developed after partial transformation still possess an enameloid layer beneath a thin enamel cap. The findings of the present study are consistent with the view that enameloid matrix is secreted by odontoblasts, while enameloid maturation is (largely) controlled by ameloblasts.
Heros acaroides HENSEL, 1870 - a valid species of Australoheros (Teleostei: Perciformes: Cichlidae) from the Patos-Mirim lagoon system, south Brazil
Authors: Schindler Ingo , Ottoni Felipe , Cheffe Morevy
Published: February 2023

Heros acaroides Hensel, 1870 is resurrected from synonymy of Chromis facetus Jenyns, 1842 (currently known as Australoheros facetus) and re-described on the basis of its type series and fresh material, collected in the vicinity of its type locality (Porto Alegre, Rio Grande de Sul, Brazil). A lectotype is designated. It differs from Australoheros facetus by its mouth shape (jaws subequal versus lower jaw projecting over upper jaw; comparative thick lips versus thin lips) and smaller scales on cheeks (cheek scale rows 4 or usually 5 vs. usually 3 in A. facetus). It differs from A. taura (a species occurring in the same drainage) by the presence of a conspicuous midlateral stripe, a well developed caudal fin base spot (vs. no prominent spot in A. taura) and by a higher body depth (42.7 – 49.0 % SL versus 40.1 – 42.4 % of SL in A. taura).
Morphometrics, distribution and ecology of the amphibians in Jordan
Authors: Disi Ahmad , Amr Zuhair
Published: February 2023

One urodele amphibian species (Ommatotriton vittatus) and four anuran species (Pseudepidalea viridis, Pelophylax bedriagae, Hyla savignyi and Pelobates syriacus) were recorded from Jordan. Alcohol-preserved specimens (n = 340) were examined. Seventeen measurements were taken and are compared between the sexes. The distribution and habitat for each species are discussed. The current status of the amphibians of Jordan is discussed.
Badis juergenschmidti - a new species of the Indo-Burmese fish family Badidae (Teleostei: Perciformes) from Myanmar
Authors: Schindler Ingo , Linke Horst
Published: February 2023

Badis juergenschmidti sp. n. is described from south central Myanmar. The new species is easily distinguished from its congeners by the lack of conspicuous spots on posterodorsal corner of opercle and superfi cial part of cleithrum, caudal fin with contrasted white margin posterodorsally and posteroventrally in adult males. A new numbering standard for the vertical bar pattern is provided. Notes on habitat and reproductive behaviour of the herein described species are given.
Hemigrammus filamentosus spec. nov. - der Südamerikanische Fadensalmler, ein neuer Salmler (Teleostei: Characiformes: Characidae) aus dem Araguaya-Becken in Brasilien
Authors: Zarske Axel
Published: February 2023

Hemigrammus fi lamentosus spec. nov. from the rio Araguaya basin is described. There are a typical and a pathological form of the species. The species is closely related with H. taphorni Benine & Lopez, 2007. Typically are (1) the sexualdimorphism and sexualdichromatism, (2) the development of a humeral spot (no humeral spot in H. fi lamentosus spec. nov. vs. a humeral spot in H. taphorni), (3) the development of a caudal spot (a longitudinal band in the caudal region of the body and no caudal spot in H. fi lamentosus spec. nov. vs. a caudal spot in H. taphorni), (4) the number of lateral scales (32 to 35 in H. fi lamentosus spec. nov. vs. 30 to 32 in H. taphorni).
Rivulus albae, a new species of killifish (Teleostei: Cyprinodontiformes: Rivulidae) from northeastern Brazil
Authors: Valdesalici Stefano , García Gil José Ramón , Nielsen Dalton Tavares Bressane
Published: February 2023

Rivulus albae, new species, from northeastern Brazil, is described. It is a member of the subgenus Melanorivulus and distinguished from all other species of this assemblage having brown oblique bars on the entire flank often form chevron-like marks with a posterior vertex and differs from R. decoratus by having less scales on lateral series and more branchiostegal and anal fin rays.
Australoheros perdi, new species (Teleostei: Labroidei: Cichlidae) from the lacustrine region of the Doce River Valley, southeastern Brazil, with biological information
Authors: Ottoni Felipe , Lezama Antônio Q. , Triques Mauro L. , Fragoso-Moura Evelise N. , Lucas Cínthia C. T. , Barbosa Francisco A. R.
Published: February 2023

Australoheros perdi is a new species herein described from the lacustrine region of the middle Doce River basin, Doce River Valley, southeastern Brazil. The new species is distinguished from all its congeners by having only 25 vertebrae and by a combination of characters states listed below: three abdominal bars in all stages of life, a conspicuous, rounded caudalfin base spot, a conspicuous wide longitudinal stripe, head with depression in the region above the eyes, tip of pelvic fin reaching vertical through third to sixth anal fin spine base, fewer dorsal-fin spines, fewer pectoral-fin rays, fewer caudal vertebrae, fewer proximal radials on dorsal-fin base, more proximal radials on anal-fin base, more pleural ribs, a longer caudal peduncle, a deeper caudal peduncle, a wide ectopterygoid, a longer last anal-fin spine and a longer lower jaw. The available phylogenetic tree of the genus does not include the species from southeastern Brazil, thus impeding any discussion of the phylogeny of these species.
Apteronotus acidops, new species of long snouted electric fish (Teleostei: Gymnotiformes: Apteronotidae) from the upper rio Paraná basin in Brazil, with a key to the apteronotid species from the area
Authors: Triques Mauro
Published: February 2023

Apteronotus acidops, new species, is described from the upper Paraná River basin, Brazil. It can be diagnosed from the remaining species of the genus by the following combination of characters: dorsal snout profi le pointed; snout length 46.4 – 63.7 % of head length; oculo-nasal distance 39.2 – 72.1 % of postocular distance; lateral ethmoid with both dorsal and ventral extremities expanded, strongly oblique in orientation; mouth rictus surpassing vertical through anterior eye margin, including its skin folds, in all ages; dorsal head profi le nearly horizontal from a vertical through anus to posterior extremity of occipital bone; absence of mid-dorsal white or clear stripe on head and body anteriorly; chin brown; upper lip clear to a vertical through anterior nostril; transversal unpigmented bar or bars posteriorly on the body absent; flanks brown, darker dorsally and pectoral fin hyaline, with chromatophores over rays. Moreover, a key for the apteronotid species from the upper rio Paraná is provided.
Three new species of Australoheros from southeastern Brazil, with taxonomic notes on Chromys oblonga, Heros autochton and H. jenynsii (Teleostei: Labrodei: Cichlidae)
Authors: Ottoni Felipe
Published: February 2023

Three new species of Australoheros are described from the São Francisco, Paraná and Paraíba do Sul river basins, southeastern Brazil. Australoheros mattosi sp. n., from the rio São Francisco basin, by having anal-fin base squamation beginning at the third anal-fin spine; A. montanus sp. n., from the rio Paquequer drainage, by having a complete red bar on the posterior margin of the caudal fin; and, A. tavaresi sp. n., from the rio Tietê drainage, by having prognathous mouth. Three currently listed synonyms of Australoheros facetus are discussed: Chromys oblonga is considered a nomen dubium. The type specimens of Heros autochton (lectotype herein designated) indicate that the species does not belong to the genus Australoheros. Finally, the status of H. jenynsii as synonym of A. facetus is confirmed.
Territorial song does not isolate Yellowhammers (Emberiza citrinella) from Pine Buntings (E. leucocephalos)
Authors: Tietze Thomas , Wassmann Christine , Martens Jochen
Published: February 2023

Western Palearctic Yellowhammer and eastern Palearctic Pine Bunting are considered a pair of young sister species. A huge area of sympatry is in western Siberia where they hybridize extensively despite striking plumage differences. The somehow dominant Yellowhammer pushes the hybrid zone further east. Territorial songs of the two taxa are almost indistinguishable. We tested 15 song types from both species from various localities inside and outside the hybrid zone in playback experiments on German Yellowhammer males. All songs elicited territorial behavior in almost every experiment. Reaction intensity depended on one out of 25 investigated sonagraphic parameters and was the weaker the further away the recording site of the playback was from the experimental site regardless of the taxon. Songs from the hybrid zone elicited disproportionately strong response so that a reinforcement of reproductive isolation through song can be excluded. Song seems to be more conserved than morphological features and has thus prevented a complete genetic divergence in this pair of subspecies groups.
Distribution, diet and winter ecology of the Imperial Eagle Aquila heliaca in Jordan
Authors: Hasani Ibrahim K. Al , Azar Joseph , Nishimura Keita , Amr Zuhair , Katzner Todd
Published: February 2023

The present study is the first attempt to investigate the diet, seasonality and distribution of the globally vulnerable Imperial Eagle Aquila heliaca in a wintering habitat in Jordan. There was a temporal pattern of observations, with nearly all observations in the northwestern part of the country occurring in late December or January. The main wintering period for Imperial Eagles occurs in January and February where (84.3%) of observations were recorded, peaking in January. Adults predominated, followed by immature birds, with sub-adults being least common. Diet includes 14 identified species of mammals, birds and reptiles. Large domestic animals, most likely consumed as carrion, predominated the food composition of wintering eagles and formed 53.7 % of analyzed food items, followed by presumably live-caught birds (26%) and small and medium sized mammals (19.7%) and reptiles (0.6%) respectively. Trapping was the major threat affecting the Imperial Eagle in its wintering habitat in the eastern desert.