Eastern States Research Articles

Assessment of relationship between emotional intelligence and conflict resolution among nurse managers at tertiary Health Institutions of North Eastern States of Nigeria

Conflict in health care settings may be effectively managed if nurse managers possess conflict management skills such as reconciliation, listening, and effective communication to bring individuals closer and work together to find fair solutions and meet balanced needs. The study aimed at identifying the relationship between emotional intelligence and conflict resolution among nurse managers at tertiary Health Facilities, in the Northern States of Nigeria. The objectives of the study are to assess the level of emotional intelligence among nurse managers, also to identify the most common types of conflict, determine the causes of conflict, determine the conflict resolution strategies applied by the nurse managers and to identify relationship between emotional intelligence and conflict resolution among nurse managers in tertiary health institutions of North Eastern States. A mixed methods research design (quantitative and qualitative methods) was used. A total of 188 nurse managers and three Head Nursing Services departments formed the sample size. The nurse managers were given structured questionnaires and the Head of the Nursing Services department was interviewed (key informant interview). Three instruments were employed for data collection; Interview Guide, Structured Questionnaire and Participants Demographics Sheet. A simple random sampling technique was used for the study. The obtained data were coded and computed in an SPSS Version 26 and analyzed using percentages, mean and standard deviation for descriptive statistics while the Pearson Correlation Coefficient was used for the inferential statistics. The result of the study revealed that most of the nurse managers have a fair level of emotional intelligence when dealing with conflict among nurse managers. It also revealed that the most common type of conflict among nurses was related to environmental factors. The working environment was the highest cause of conflict among nurses. Social skill strategy was mostly used in conflict resolution. The study revealed that there was no significant relationship between years of experience and conflict resolution r=0.173. Based on the findings the researcher concluded that most of the respondents highly make use of social awareness in the application of emotional intelligence in conflict resolution, most of the causes of conflict among nurses were related to a working environment, and social skills were mostly used in conflict resolution among nurses. Based on the findings of the study, the researcher recommended that other sources of conflict management should be identified for nurse managers to manage conflict, nurse managers should use the skills they have to solve problems and conflict management to be part of a school of nursing curriculum.

The gaps and strengths towards effective infection prevention and control on a background of knowledge attitude and perception on COVID-19 among undergraduate students in Southeastern Nigeria: a multicentre online cross-sectional survey

The advent of the Coronavirus Disease (COVID-19) pandemic posed a serious health burden locally and globally as it altered people’s daily activities due to restrictive preventive measures instituted by countries and health authorities to curb its spread like wildfire. The undergraduate population remains at the epicentre for the spread and curbing of COVID-19. This study assessed the knowledge, attitude, and perception of COVID-19 among undergraduate students in Southeastern Nigeria. The gaps and strengths achieved towards effective infection prevention and control in the eastern states were assessed. This was a cross-sectional online population-based survey conducted among undergraduate students attending Universities in 5 states (Abia, Anambra, Ebonyi, Enugu, and Imo), located in Southeastern Nigeria from June 29 to July 20, 2020. A structured pre-tested questionnaire was designed for the Google survey tool (Google Forms), and the generated link was shared with students online. From a total of 1,012 respondents from Universities in Southeastern Nigeria, 560 (55%) were females and 452 (45%) were males. The overall mean age of the respondents was 21.63±0.65years. The age distribution did not vary considerably across states (t=-0.007, p=0.995>0.05). The majority (93.8%) of the respondents were Igbos, Yorubas, and Hausas accounting for 2.6% and 0.4% respectively while 3.3% did not identify their ethnic group. Christians (96.0%) were dominant compared to Islam (2.7%) while traditionalists and other non-captured worshippers accounted for 0.5% and 0.8% respectively. Most of the respondents were in second and fourth years in the university. The variation across the states is statistically significant ( =112.01, p=0.000<0.05). The respondents identified that their main source of information concerning COVID-19 was social media (26.9%). The level of knowledge was highest among people in Anambra state (78.0%); followed by those in Enugu state (74.3%), those in Abia state (72.2%), those in Imo state (70.8%), and lastly, by those in Ebonyi state (65.4%). The participants’ attitudes about COVID-19 safety practices were on average moderately positive (49.2%) with the best result in Imo state (60.5%), followed by Abia state (55.3%), Ebonyi state (52.4%), Enugu state (42.9%) and lastly Anambra state (35.1%). In summary, the respondents’ general perception of the realness, infectiveness, and source is positive (>50.0%) in all the Southeastern states. The knowledge, attitude, and perception of COVID-19 among undergraduate students in Eastern states, of Nigeria were appreciable but a lot has to be done in terms of enhanced public health education, positive behavioural changes as well as proactive preventive measures to curb the progress of the COVID-19 pandemic.

National schools of diplomatic training: divergences in the global epistemology of international relations

The proposition of establishing “global international relations” (Global IR) as an amalgamation of diverse national epistemologies in the field of international relations, potentially superseding the Western-centric paradigm, presents significant challenges. A critical inquiry emerges: Is it possible to form a discipline based on the polyphony of national approaches, despite the fact that the ontology of international relations has remained fundamentally unchanged since the mid-17th century? This study evaluates the thesis of extant national epistemologies in international relations by examining national traditions of diplomatic training. The primary research question is formulated as follows: What are the foundational approaches employed by leading states in the training of IR specialists, and can these approaches be considered reflective of national epistemologies regarding the nature of international relations? The research methodology involves a synthesis of findings from an examination of diplomatic training institutions across a diverse sample of countries. This sample encompasses Western nations (United Kingdom, Hungary, Poland, United States, Finland, France, and Germany), Asian countries (Vietnam, Indonesia, India, China, and the Republic of Korea), Middle Eastern states (Egypt, Iran, Saudi Arabia, and Turkey), African nations (Nigeria and South Africa), and Latin American countries (Brazil, Mexico, and Cuba). The article is structured in two principal sections. The theoretical section explores the hypothesis of “global international relations” within the context of existing literature and theoretical frameworks. The second section synthesizes the empirical findings from the study of national approaches to diplomatic training, testing the hypothesis of its correlation with national epistemologies in the field of international relations.

Lithuanians and Ukrainians living in exile: traces of political relations in the West

In raising the issue of Lithuania’s freedom the political diaspora of Lithuanians understood that seeking to maintain the relevance of this problem on the international plane it is important not only to further strengthen relations with other Balts of a similar fate but also to establish contacts with the emigrants of other Eastern European nations which live in dependence of the Soviet Union and by communicating with them to seek for concerted actions in the joint liberation activity. Developing relations between the Lithuanian diaspora and the Ukrainian one became one of the directions of such cooperation. The Diplomatic Service of the Republic of Lithuania followed the principle according to which close relations linking only the Baltic States were possible, excluding Belarus and Ukraine which were in the composition of the Soviet Union before World War II; this fact definitely confirmed the international recognition of the statehood of Lithuania, Latvia and Estonia. However, taking into consideration the emerging movement of the United States of Europe whose germs dated back to the period before World War II, and which promoted the idea of uniting the states of Eastern and Western Europe, including also Ukraine, the principles which were becoming predominant changed. Supporting the idea of unification, the Ukrainian side, at the beginning offered to apply this model in Eastern Europe, which, seeking to achieve liberation should strive for unity, come together and play an active part beginning with a smaller nucleus. The block formed on the basis of the region (the Black Sea and the Baltic Sea) was seen in which, apart from Ukraine, there should be Belarus (often referred to as Belorussia), Lithuania, Latvia and Estonia, and Poland – as an ally of the block. Therefore, approving of nonrecognition of Lithuania’s and other Baltic countries’ joining the USSR, it became important to support liberation of other nations under Soviet domination, including that of Ukrainians. Main factors of the Lithuanian diaspora – the Supreme Committee for the Liberation of Lithuania or VLIK, the Lithuanian Freedom Committee (LLK), and later (from the 1960s) the Lithuanian World Community, in cooperation with the Lithuanian American Community – became engaged in a search for political relations with the Ukrainians who did not deny historical links and supported the idea of liberation. They expressed the expectations of their Motherland – Ukraine – in the West through the following organisations: the Ukrainian National Council (UNR), the Ukrainians World Congress, the Ukrainian American Congress. Raising the issue of independence of Vilnius and Lvov brough the positions of both the Lithuanian and Ukrainian diasporas closer together. Hence, it can be stated that since the end of the 1940s, Lithuanian political factors, in establishing contacts with the above-mentioned Ukrainian leaders in the West, spoke for promoting cooperation between themselves in the context of Eastern Europe. The course of the process itself was planned until full independence of Lithuania and Ukraine had been achieved, and after freedom for the nations had been regained, it was assured that cooperation would not be withheld and their historical friendship, which had become a tradition, would continue: cultural, political links would further be developed and strengthened and relations between both states would be fostered in the spirit of partnership that had been formed. It is very important that both Lithuania’s and Ukraine’s aspirations towards emancipation from the iron grip of Communism were professed while the diasporas of both nations conducted public anti-Soviet campaigns in the West. The Helsinki process that started in 1975 provided the movement of liberation of Eastern European nations, including Lithuanians and Ukrainians, with the new impetus. New forces that joined the movement did their utmost to strengthen relations between both nations and the dissidents who arrived in the West expanded their cooperation underlying the importance of a unified fight against the communist regime. At the same time the expectations and conviction of the Eastern European nations that Western democracy could be the best example of governance to that part of the old Continent were expressed.

EU Accession of Western Balkan States: The Role of CEFTA and WTO Membership

The Central European Free Trade Agreement (CEFTA) is known to have positively affected the EU accession of several central and eastern European states. The fairly modest progress of EU accessions of Western Balkan states is in stark contrast to the processes of the EU accession of the parties to the original version of CEFTA. This article analyses the role of WTO membership as an external factor determining the efficacy of CEFTA in advancing the process of EU integration in the Western Balkans (2007–2024). The article identifies two key advantages of WTO membership in the context of CEFTA’s role in the process of EU accession. The first advantage is related to the use of WTO dispute settlement to ensure compliance with standards either identical or similar to those established by CEFTA. The second advantage is based on the relatively new WTO Trade Facilitation Agreement (TFA), aimed at eliminating many of the barriers to international trade, which happen to be the key problems as regards regional economic integration in the Western Balkans. The article concludes that WTO membership could play a decisive role for the coordinated and efficient process of the European integration of Western Balkan states on the basis of CEFTA.

Influence of Intensity of Pruning on Yield and Physico-Chemical

Khasi Mandarin orange is well suited in Arunachal Pradesh as well entire north eastern states of India. Besides the ample rainfall and good shun shine received in Arunachal Pradesh; its productivity is too low as compared national average. The negligence of orchards without proper management practices is the major cause of low productivity. In this regard canopy management play vital role for good yield. The requirement of pruning varies with species therefore, the present experiment was carried out to investigate the influence of pruning intensity on the yield and quality of Khasi mandarin fruit. The highest No. of fruits (245), and highest yield (12.24 T/ha) with T4-( Removal of dried & diseased branches, thin shoots, water sprouts and selected laterals) while, highest average fruit weight (130 g), maximum fruit diameter (6.2 cm), maximum fruit length (5.6 cm) were noticed with T5-(T4+ Removal of selected leaders and formation of open centre canopy) and it was also observed lowest No of fruits, size and yield were recorded in control. Therefore, It is concluded from the result that T4 (Removal of dried & diseased branches, thin shoots, water sprouts and selected laterals) is best practice of higher yield but T5 (T4+ Removal of selected leaders and formation of open centre canopy) is best practice for little lower yield than T4 but for good market quality fruits.

Effect evaluation of outpatient long-term video EEGs for people with seizure disorders – study protocol of the ALVEEG project: a randomized controlled trial in Germany

BackgroundEpilepsy and other seizure disorders account for a high disease burden in Germany. As a timely diagnosis and accurate treatment are crucial, improving the management of these disorders is important. Outside of Germany, outpatient long-term video EEGs (ALVEEGs) have demonstrated the potential to support the diagnosis and management of epilepsy and other seizure disorders. This study aims to evaluate the implementation of ALVEEGs as a new diagnostic pathway in eastern parts of Germany to diagnose epilepsy and other seizure disorders and to assess if ALVEEGs are equally effective as the current inpatient-monitoring gold standard, which is currently only available at a limited number of specialized centers in Germany.MethodsALVEEG is a prospective, multicenter, randomized controlled equivalence trial, involving five epilepsy centers in the eastern states of Germany. Patients will be randomized into either intervention (IG) or control group (CG), using a permuted block randomization. The sample size targeted is 688 patients, continuously recruited over the trial. The IG will complete an ALVEEG in a home setting, including getting access to a smartphone app to document seizure activity. The CG will receive care as usual, i.e., inpatient long-term video-EEG monitoring. The primary outcome is the proportion of clinical questions being solved in the IG compared to the CG. Secondary outcomes include hospital stays, time until video EEG, time until diagnosis and result discussion, patients’ health status, quality of life and health competence, and number and form of epilepsy-related events and epileptiform activity. Alongside the trial, a process implementation and health economic evaluation will be conducted.DiscussionThe extensive evaluation of this study, including an implementation and health economic evaluation, will provide valuable information for health policy decision-makers to optimize future delivery of neurological care to patients affected by epilepsy and other seizure disorders and on the uptake of ALVEEG into standard care in Germany.Trial registrationGerman Clinical Trials Register (DRKS00032220), date registered: December 11, 2023.

Power and informality in the polycentric governing of transit and irregular migration on EU’s eastern border with Belarus

ABSTRACT Migration towards the EU has passed for many decades via Russia, Central Asia, and the Caucasus, using Ukraine and Belarus as transit states, yet it adopted new forms under Russia’s intensified ‘hybrid’ warfare, and its 2022 military invasion of Ukraine. This paper seeks to uncover: (1) how formal policies and informal practices were interconnected in the governing of the migration ‘crisis’ on the EU’s eastern border with Belarus (2021–2023); and (2) what different modes of power were used to govern it. The paper advances a polycentric governance perspective. It demonstrates that crisis governance was not simply pursued by the Belarussian government and the EU as direct parties to the conflict. It involved a plethora of other stakeholders including Middle Eastern states, Russia, and travel agencies as non-state actors, all entangled in specific relationships with one another. This paper’s contribution is to show how relational dynamics among these stakeholders governed the crisis via a mixture of formal and informal practices that entailed different levels of coersion. The polycentric perspective advanced here is more useful when studying crisis governance than statist, multilevel governance, or EU-centric approaches emphasising institutional logics, as it emphasises relations among actors, and the power that shapes these relations and the governance system as a whole.

Shoulder Pain in Competitive Swimmers: A Multi-Site Survey Study.

There are 2.8 million youth competitive swimmers in the United States (US), and shoulder pain is the most common complaint among swimmers. To determine prevalence of shoulder pain, disability, and dissatisfaction in youth competitive swimmers. A secondary purpose was to determine influence of age, competitive swimming experience, and previous history of shoulder pain or injury on shoulder pain, disability, and dissatisfaction, and finally to determine if sex, geographic area, and participation in a second sport relate to shoulder pain, disability, and dissatisfaction. Multi-site cross-sectional design. Six-hundred and seventy-one swimmers aged 9-17 years from six states in the US completed surveys which included demographics, the Penn Shoulder Score (PSS), and the Disability of Arm Shoulder Hand (DASH) Sports. Independent t-tests were used to compare pain, disability, dissatisfaction, the influence of age, sex, participation in second sport, geographic region, and history of shoulder pain. Linear regression analyses were performed to determine the interaction of these variables with reported pain and disability. Forty-nine percent of swimmers had shoulder symptoms. Greater shoulder pain and disability were reported in 15 to 17-year-olds compared to 9 to 10-year-olds (pain and disability: p<0.001), in swimmers with greater versus less years of experience (pain and disability: p<0.001), and in swimmers from eastern versus western states (pain: p=0.001, disability: p=0.0014). Swimmers not participating in a second sport had higher shoulder dissatisfaction (p=0.002). History of prior shoulder pain/traumatic injury was the best indicator of increased pain, disability, and dissatisfaction (p<0.001). Almost half of swimmers surveyed had shoulder pain, with a higher prevalence found in older age groups, those with greater experience, and in those with prior shoulder pain or traumatic injury. Further research should investigate shoulder pain prevention programs, and surveillance methods are recommended to identify symptomatic swimmers who may benefit from referral to prevent further pain and disability. III.

First report of Phytopythium vexans causing gummosis and root rot of Khasi Mandarin (Citrus reticulata Blanco) in north eastern states of India.

Khasi mandarin (Citrus reticulata Blanco) is the most economically important crop among the citrus growing region in the north-eastern India (Singh et al. 2016). An extensive survey was conducted to identify the causal agent of citrus root rot and gummosis in north eastern states (Meghalaya, Tripura, Manipur, Arunachal Pradesh, Sikkim, Nagaland and Assam) of India during October 2021-23. The gummosis disease incidence ranged from 5 to 95 % in 10 to 25 years old Khasi mandarin plants showing relatively more chronic symptoms on mature trees. Yellowing and dropping of leaves, twigs die back, gum oozing from infected bark and loss of feeder roots were the typical symptoms of the disease. Infected bark tissue and young lemon leaf baits in rhizosphere soil were plated on corn meal agar medium supplemented with pimaricin (10 µg/ml), ampicillin (250 µg/ml), rifamycin (10 µg/ml) and 300µg/ml carbendazim and incubated at 26℃. Fifty isolates were purified and maintained on Carrot agar medium. These isolates showed similar cultural and morphological characteristics. Two representative isolates from Arunachal Pradesh (AP21 and AP26) were selected for further experiments and deposited to Indian Type culture collection (ITCC), New Delhi with accession no. 9156 and 9157 respectively. The colonies were fast growing, showing rosette pattern along with whitish blooming mycelium appearance with no visual sporulation at the surface. The hyphae were coenocytic with initially right-angled branching. Sporangia were globose or sub globose and papillated. Oogonia were smooth and globose (16.29-21.09 µm) in diameter. Antheridia were irregular, cylindrical and broadly attached to oogonia. Empty sporangia were also observed. Multilocus phylogenetic analysis using internal transcribed spacer region (Das et al. 2011), β tubulin (Blair et al. 2008) and Cytochrome oxidase II gene (Noireung et al. 2020) showed that these isolates formed a stable clade with Phytopythium vexans (CBS119.80) sequence retrieved from NCBI database. BLAST analysis showed that ITS sequence of AP21 (OQ372986) and AP26 (OQ381083) had >99 % identity with P. vexans isolate NS-3 (ON533631). Further, BLAST analysis of β tubulin (AP21 OQ446053, AP26 OR405377) and Cox II gene (AP21 OQ473414, AP26 OR552422) sequences showed that our Indian isolates showed >99 % similarity with P. vexans voucher strain CBS119.80. To fulfil Koch's postulates, Khasi mandarin (Citrus reticulata) seedlings were inoculated by adding 100 ml zoospore suspension of P. vexans (1x105 spores/ml) in sterilized soil (Thao et al. 2020). The experiment was carried out in triplicate. Yellowing of leaves and leaf drop were observed 7 days post inoculation while 30 days post inoculation, treated plants started showing symptoms of root rot, including mild root decay. No symptoms were observed in control treatment. The pathogen was reisolated from symptomatic roots and confirmed through colony and sporangium morphology. Recently, it was reported that P. vexans is associated with apple and pear decline in the Saiss plain of Morocco (Jabiri et al. 2021), root rot on mandarin in Thailand (Noireung et al. 2020) and on Durian in Vietnam (Thao et al. 2020). As per our knowledge, this is the first report of P. vexans causing root rot and gummosis in Khasi mandarin from north eastern states of India. This finding is significantly important for the development of a successful disease management strategy in India.

Genetic Tracking of a Rabid Coyote (Canis latrans) Detected beyond a Rabies Enzootic Area in West Virginia, USA.

Wildlife translocation and cross-species transmission can impede control and elimination of emerging zoonotic diseases. Tracking the geographic origin of both host and virus (i.e., translocation versus local infection) may help determine the most effective response when high-risk cases of emerging pathogens are identified in wildlife. In May 2022, a coyote (Canis latrans) infected with the raccoon (Procyon lotor) rabies virus variant (RRV) was collected in Lewis County, West Virginia, USA, an area free from RRV. We applied host population genomics and RRV phylogenetic analyses to determine the most likely geographic origin of the rabid coyote. Coyote genomic analyses included animals from multiple eastern states bordering West Virginia, with the probable origin of the rabid coyote being the county of collection. The RRV phylogenetic analyses included cases detected from West Virginia and neighboring states, with most similar RRV sequences collected in a county 80 km to the northeast, within the oral rabies vaccination zone. The combined results suggest that the coyote was infected in an RRV management area and carried the RRV to Lewis County, a pattern consistent with coyote local movement ecology. Distant cross-species transmission and subsequent host movement presents a low risk for onward transmission in raccoon populations. This information helped with emergency response decision-making, thereby saving time and resources.

Compound hazard mapping for tropical cyclone-induced concurrent wind and rainfall extremes over India

India is the worst affected region in the world by tropical cyclones (TCs), causing an average 2% annual GDP loss. TCs instigate many other natural hazards that have a compounding effect on the adversely affected population and present significant challenges to the resilience of emergency response systems and infrastructure. Hence, any risk assessment on TC is inherently multivariate/compound in nature. This study investigates co-occurring wind and rainfall extremes during TCs across India (1979–2020) using a novel quasi-Lagrangian approach, focusing on location-specific hazards. Eastern coastal states and adjacent inland areas experience the highest frequency (≥10 cyclones in 40 years) of concurrent extremes (wind gusts ≥ 16 m/s and rainfall ≥ 18 mm/h). Whereas duration-wise, the eastern coastal states and Gujarat state experience frequent concurrent extremes lasting more than a day annually, with the Krishna–Godavari delta region particularly vulnerable to highly severe events (duration of concurrent extremes ≥ 24 h). This study provides a high-resolution cartographic product of compound hazard from TC-induced extremes for the first time over the entire India, highlighting regional heterogeneity and aiding targeted national-level risk mitigation and adaptation planning.

Are crimes against women in India converging? Some empirical observations

ABSTRACT Using the Indian state-level panel data on crimes against women for the period 2000–2019, we examined whether various rates of crime against women were converging. The second-generation unit-root test proposed by Pesaran (2007) was employed to check for absolute β-convergence after conforming to cross-sectional dependence in our panel analysis. The results showed no convergence for various rates of crime against women at the aggregate level, barring dowry deaths. The disaggregated zone-wise results revealed convergence in Eastern and North Eastern states for the Composite Crime Index (CI). The rate of rape was convergent in the west zone, while dowry deaths and cruelty by husbands were convergent only in the Eastern zone. Note that there was a weak convergence in dowry deaths in the North zone. In short, our study fails to find robust evidence of strong convergence in various categories of crime against women in India. The system-GMM results of conditional β-convergence broadly supported the no-convergence results of Pesaran’s unit-root test, as divergence was found in most crime categories. The prominent sources of divergence are women’s employment, female foeticide rate, number of pending cases, rate of arrest, and the proportion of Schedule Castes (SCs) people in the total population.

Predicting chronic wasting disease in white-tailed deer at the county scale using machine learning

Continued spread of chronic wasting disease (CWD) through wild cervid herds negatively impacts populations, erodes wildlife conservation, drains resource dollars, and challenges wildlife management agencies. Risk factors for CWD have been investigated at state scales, but a regional model to predict locations of new infections can guide increasingly efficient surveillance efforts. We predicted CWD incidence by county using CWD surveillance data depicting white-tailed deer (Odocoileus virginianus) in 16 eastern and midwestern US states. We predicted the binary outcome of CWD-status using four machine learning models, utilized five-fold cross-validation and grid search to pinpoint the best model, then compared model predictions against the subsequent year of surveillance data. Cross validation revealed that the Light Boosting Gradient model was the most reliable predictor given the regional data. The predictive model could be helpful for surveillance planning. Predictions of false positives emphasize areas that warrant targeted CWD surveillance because of similar conditions with counties known to harbor CWD. However, disagreements in positives and negatives between the CWD Prediction Web App predictions and the on-the-ground surveillance data one year later underscore the need for state wildlife agency professionals to use a layered modeling approach to ensure robust surveillance planning. The CWD Prediction Web App is at https://cwd-predict.streamlit.app/.

Book Review: Iraq: Power, Institutions, and Identities

Iraq, with its natural resources, strategic location, population, army, historical and cultural richness, is an important actor in the Middle East. At the same time, Iraq struggles with similar problems as many other Middle Eastern states: poverty, unemployment, proxy wars, terrorist attacks, political instability, weak institutionalization, and authoritarian regimes. Therefore, analyzing Iraq's recent history will also help to understand the current issues in the Middle East. In this book, the author analyzes Iraq from various perspectives such as economy, politics, history, culture, and demographic structure, addressing the underlying reasons for the country's chronic problems.

Variation in Cooper’s Hawk (Accipiter cooperii) Eggshell Thickness: DDT, Measurement Methods, and Location

Abstract We collected Cooper’s Hawk (Accipiter cooperii) eggshells from nests in the Tucson, Arizona, USA, area in the 1990s incidental to other activities and compared them to pre-DDT Cooper’s Hawk eggshells (119 museum specimens from 14 states, 1894–1939) ranging from 0.284–0.402 mm (x̄ = 0.348 mm, SD = 0.0243) and we also compared them to reported thicknesses found in the literature. We found that within-state eggshell thickness varied as did eggshell thickness among states. Of the pre-DDT eggshells measured, those from Arizona, Utah, and Nevada were thinnest and generally eggs from western states (x̄ = 0.339 mm, SD = 0.0184) had significantly thinner eggshells than those for eastern states (x̄ = 0.359 mm, SD = 0.0256). Other published measurements of pre-DDT Cooper’s Hawk eggshells were slightly lower than ours but were generally within the lower range of our measurements, which was expected because of the measuring technique used in earlier studies versus our method. Cooper’s Hawk eggshells that were collected from nests in the Tucson area in the 1990s had a mean thickness of 0.309 mm (SD = 0.0191) and the pre-DDT mean thickness of museum eggshells from Arizona was 0.333 mm (SD = 0.018). Although the Tucson eggshells were significantly thinner than pre-DDT eggshells overall (t = 10.8, df = 100.4, P &amp;lt; 0.001), some individual pre-DDT eggshells and even some means from other regions (e.g., New Hampshire, New York, and Nevada) were similarly thin. Measurements of these pre-DDT eggshells show wide variation and demonstrate the importance of comparing eggs from the same geographical area and having an adequate sample size.

Searching the Pinus taeda foliar mycobiome for emerging pathogens among brown spot needle blight and needlecast outbreaks in the Southeast United States

Needle pathogens cause the discoloration, death, or premature abscission of conifer foliage, reducing growth and vigor, and repeated defoliation may eventually result in tree mortality. Since 2016, forest managers in the southeast United States have reported an increasing scale, frequency, and severity of needle disease outbreaks on the region’s principal timber species, loblolly pine (Pinus taeda L.). These recent outbreaks are raising concern throughout the region, as needle diseases are not traditionally considered a threat to P. taeda. Lecanosticta acicola (Thum.) Syd., the native causal agent of brown-spot needle blight, has been recovered from some outbreaks, however, the full array of fungi associated with symptoms has not been explored. In this research, P. taeda foliage was collected from affected stands throughout the region and analyzed to identify fungi associated with needle disease symptoms. We employed targeted molecular diagnostics, to confirm the presence or absence of L. acicola, and DNA metabarcoding, to characterize the foliar mycobiome and screen for other potential pathogens. Lecanosticta acicola was detected among symptomatic needles from multiple states, particularly in western portions of the P. taeda range but rarely from stands in eastern states. Metabarcoding revealed pathogens in needles and identified associations among pathogenic fungi, differing symptoms, including needle discoloration and necrosis, and signs of fungal fruiting bodies. Additionally, the fungal community of needles varied with patterns of symptom presentation. This study is the first regionwide assessment of fungi associated with recent large-scale needle disease outbreaks on P. taeda and identifies multiple pathogens that warrant further study.

A 2021–2023 közötti inflációs hullám okai és háttere

In the decade of 2020, overlapping inflationary waves followed each other consecutively. The demand-supply frictions after the COVID-pandemic, the energy crisis and the Russian-Ukrainian war had a significant impact globally but affected the European Union and its eastern member states more severely. High energy usage and the dependence on energy imports from Russia made the Eastern European region more vulnerable to the shocks of the previous years. In Hungary, however, six additional country-specific factors also played a role in having the largest inflation rate among the EU countries between November 2022 and October 2023. The (1) deficiencies in the food industry’s competitiveness and its higher cost sensitivity, (2) the largest increase in enterprises’ energy prices in the EU, (3) the strongest profit-­driven inflation, (4) the expansionary fiscal policy, (5) the negative effects of market distortion, and the (6) weakening forint with stronger exchange rate pass-­through into prices were all responsible for the inflation peak of almost 26 percent at the beginning of 2023.

Taxonomic insight on some newly recorded species of the springtails (Hexapoda: Collembola) from North Eastern and Eastern states of India

Taxonomic insight on some newly recorded species of the springtails (Hexapoda: Collembola) from North Eastern and Eastern states of India

Enhancing Eastern Equine Encephalitis Virus Surveillance in New Jersey: Optimized Collection of Culiseta melanura.

Eastern equine encephalitis virus (EEEV) causes the most clinically severe neuroinvasive arboviral disease in the United States. The virus is endemic in eastern and Gulf Coast states and the Great Lakes region, causing cases annually. To detect EEEV circulation in its enzootic cycle before the virus infects humans and other mammals, mosquito control agencies in New Jersey have conducted mosquito surveillance using a series of permanent wooden resting box sites since 1975. We conducted 2 field studies, 1 evaluating resting traps and 1 evaluating efficacy of CO2 lures, to optimize collection of Culiseta melanura, the primary enzootic vector of EEEV. Resulting mosquito samples were subjected to molecular analysis to determine EEEV infection rates. Corrugated plastic boxes trapped more bloodfed Cs. melanura than other resting trap types (resting boxes, Centers for Disease Control and Prevention [CDC] resting traps, or fiber pots) and were similar to resting boxes in total number of female Cs. melanura caught. Further, non-baited CDC light traps were more successful in trapping host-seeking Cs. melanura than those baited with dry ice, a CO2 lure. The EEEV RNA was identified in Cs. melanura, Aedes vexans, Anopheles quadrimaculatus, and Uranotaenia sapphirina. Our findings indicate that corrugated plastic boxes and non-CO2 baited traps could improve detection of Cs. melanura. Mosquito control agencies are encouraged to periodically assess their surveillance strategy for EEEV.