Availability Of Key Resources Research Articles

Регулирование и государственная поддержка малых форм хозяйствования АПК (на примере РТ)

Abstract: Currently, Russia is going through a difficult period in terms of economic development, overcoming internal economic difficulties, among which are demographic problems and limited consumer demand. These factors are aggravated by external factors, such as foreign trade barriers and limited access to borrowed funds in international markets, which leads to a noticeable decrease in state budget revenues. In the agricultural sector, restrictions in the availability of key resources and instability of distribution channels for agricultural products are also highlighted. These difficulties are especially significant for small businesses, both on a nationwide scale and at the regional level, in particular in the Republic of Tatarstan. To eliminate these problems and achieve long-term economic growth in the country, it is necessary to form and develop mechanisms of state regulation and support of small forms of business in the agricultural sector. The object of the study is economic relations that arise in the process of state regulation and state support of small forms of business in the agro-industrial complex. The purpose of the study is to characterize the current state and determine the prospects for the development of state regulation of small businesses in the agro-industrial complex of the Republic of Tatarstan. Research methods – abstract-logical, monographic, tabular-graphic, calculation-constructive, economic-statistical. The scientific novelty lies in the systematization and clarification of theoretical aspects and practical recommendations for the development of state regulation of small forms of management in the agro-industrial complex of the Republic of Tatarstan.

Specialist Perspectives on Delivering High-Quality Telemedicine for Diabetes: A Mixed Methods Survey Study.

Recent recommendations guiding appropriate use of telemedicine for endocrinology care have largely relied on expert opinion due to limited evidence on factors that increase quality of telemedicine care. In this study, we assessed the perspectives of front-line specialists on factors and strategies perceived to increase quality of diabetes care delivered via telemedicine after more than 2 years of widespread use. Adult diabetes specialists in 2 academic health systems who recently used video-based telemedicine to provide diabetes care were invited to participate in an online survey study between March and April 2022. Likert-style questions, followed by related open-ended questions, assessed perspectives on availability of key resources, factors affecting quality, and anticipated benefits from telemedicine for diabetes. Response rate was 52% (56/111). More than half (54%) of participants reported better overall quality of diabetes care with face-to-face care vs telemedicine. Participants reported clinical data supporting high-quality care, such as home blood glucose readings and vital signs, were often not available with telemedicine. Patient factors, including comorbidities and communication barriers, reduced anticipated benefit from telemedicine, while geographic and mobility barriers increased expected benefit. Providers described multiple health care setting resources that could promote high-quality telemedicine diabetes care, including greater support for sharing patient-generated health data and coordinating multidisciplinary care. After 2 years of sustained use, diabetes specialists identified telemedicine as an important way to enhance access to care. However, specialists identified additional supports needed to increase appropriate use and delivery of high-quality telemedicine care for patients with complex clinical needs.

The Malawi emergency and critical care survey: A cross-sectional national facility assessment.

SummaryBackgroundData on emergency and critical care (ECC) capacity in low-income countries (LICs) are needed to improve outcomes and make progress towards realizing the goal of Universal Health Coverage.MethodsWe developed a novel research instrument to assess public sector ECC capacity and service readiness in LICs. From January 20th to February 18th, 2020 we administered the instrument at all four central hospitals and a simple random sample of nine of 24 district hospitals in Malawi, a landlocked and predominantly rural LIC of 19·1 million people in Southern Africa. The instrument contained questions on the availability of key resources across three domains and was administered to hospital administrators and clinicians from outpatient departments, emergency departments, and inpatient units. Results were used to generate an ECC Readiness Score, with a possible range of 0 to 1, for each facility.FindingsA total of 114 staff members across 13 hospitals completed interviews for this study. Three (33%) district hospitals and all four central hospitals had ECC Readiness Scores above 0·5 (p-value 0·070). Absent equipment was identified as the most common barrier to ECC Readiness. Central hospitals had higher median ECC Readiness Scores with less variability 0·82 (interquartile range: 0·80–0·89) than district hospitals (0·33, 0·23 to 0·50, p-value 0·021).InterpretationThis is the first study to employ a systematic approach to assessing ECC capacity and service readiness at both district and central hospitals in Malawi and provides a framework for measuring ECC capacity in other LICs. Prior ECC assessments potentially overestimated equipment availability and our methodology may provide a more accurate approach. There is an urgent need for investments in ECC services, particularly at district hospitals which are more accessible to Malawi's predominantly rural population. These findings highlight the need for long-term investments in health systems strengthening and underscore the importance of understanding capacity in LIC settings to inform these efforts.FundingDivision of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Department of Emergency Medicine, Brigham and Women's Hospital.

What determines the distribution of a threatened species, the brush‐tailed phascogale Phascogale tapoatafa (Marsupialia: Dasyuridae), in a highly modified region?

AbstractIdentifying factors that affect species’ distributions in highly modified landscapes, especially threatened species, is a key issue for conservation worldwide. Three types of factors commonly are considered important: the extent and pattern of suitable habitat at a landscape scale; the availability of key resources at a local scale; and interactions with other species. The brush‐tailed phascogale (Phascogale tapoatafa) has undergone range contractions and regional extinctions in Australia and falls within the critical weight range of mammal species with high risk of decline. Yet, in some regions, it persists despite marked habitat loss and disturbance. We investigated the distribution of the brush‐tailed phascogale in a highly modified region in central Victoria where it is a ‘flagship’ for community conservation. At 50 sites, stratified geographically and in relation to topography and surrounding forest cover, we carried out surveys using remotely sensed cameras (in parallel with nest box inspections). We used an occupancy modelling framework and information‐theoretic approach to analyse factors influencing detectability and occupancy. The brush‐tailed phascogale was widespread, recorded at 84% (42/50) of sites. The environmental space occupied by sites with camera records matched that of nest boxes containing established nests of this species. Detection probability was influenced by survey effort and site‐level measures of habitat quality (logs, litter, topographic position) likely reflecting population abundance. Dry forested slopes were favoured compared with gullies. The study area, with its dry forests of rough‐barked eucalypts, is a stronghold for this species. The broad distribution of the brush‐tailed phascogale in this highly modified region can be attributed to retention of ˜36% regional forest cover and a relatively high level of structural and functional connectivity. In such modified landscapes, complementary actions by land managers to sustain remaining large tracts of forest and also a mosaic of wooded vegetation across the rural landscape will help such species to persist.

Wildfire and fire mosaic effects on bird species richness and community composition in south-western Australia

BackgroundA fire management strategy of deliberate patch-mosaic burning (PMB) is postulated to promote biodiversity by providing a range of habitat patches with different fire histories, habitat qualities, and vegetation ages at a given scale. We investigated the response of avian fauna to fire, particularly species richness and community composition, in a landscape composed of a diversity of vegetation ages including long-unburned refuges (age 26 years), compared with a landscape of uniform vegetation ages recovering from an extensive and intense fire.ResultsThere was no effect of heterogeneity in vegetation age on species richness at whole forest management block (about 6000 ha), or local (2 ha) scales. There were different responses of particular species to vegetation age. Nine species showed responses to vegetation age at local (2 ha) scales, which is presumably a surrogate for availability of key resources and which changes over time. Australian Pipit (Anthus australis Vieillot, 1818) were absent from swamp vegetation <3.5 years old, while Spotted Pardalote (Pardalotus punctatus Shaw & Nodder, 1792) were only found in forest vegetation <3.5 years old. Year-to-year changes in local assemblages were detected after removing the effect of time since fire. There was no difference in effect of the two fire regimes on assemblage composition or feeding-guild structure.ConclusionsMosaics of different vegetation ages had no net benefit for biodiversity, as measured by species richness and assemblage composition, at the forest block management unit scale. Different responses to vegetation age among bird species did not lead to increased bird richness at the scale of forest management block. A potential advantage of mosaics in conservation of avian biodiversity is through preservation of patches of older vegetation ages in the landscape, compared to the periodic extensive loss of older vegetation ages in wildfires. However, the absence of large-scale effects of vegetation age on bird species richness, the tendency for birds to specialize to fuel ages >5.5 years in the landscape studied, and indications of flexible responses of some species at landscape scales allows some flexibility in fuel management strategies and the scale at which they are applied with respect to avifauna.

Chromosome Engineering in Tropical Cash Crops

Tropical and subtropical crops such as coffee, cacao, and papaya are valuable commodities, and their consumption is a seemingly indispensable part of the daily lives of billions of people worldwide. Conventional breeding of these crops is long, and yields are threatened by global warming. Traditional chromosome engineering and new synthetic biology methods could be used to engineer new chromosomes, facilitate the transmission of wild traits to improve resistance to stress and disease in these crops, and hopefully boost yields. This review gives an overview of these approaches. The adoption of these approaches may contribute to the resilience of agricultural communities, lead to economic growth and secure the availability of key resources for generations to come.

Mechanisms driving phenological and range change in migratory species.

Many migratory systems are changing rapidly in space and time, and these changes present challenges for conservation. Changes in local abundance and site occupancy across species' ranges have raised concerns over the efficacy of the existing protected area networks, while changes in phenology can potentially create mismatches in the timing of annual events with the availability of key resources. These changes could arise either through individuals shifting in space and time or through generational shifts in the frequency of individuals using different locations or on differing migratory schedules. Using a long-term study of a migratory shorebird in which individuals have been tracked through a period of range expansion and phenological change, we show that these changes occur through generational shifts in spatial and phenological distributions, and that individuals are highly consistent in space and time. Predictions of future rates of changes in range size and phenology, and their implications for species conservation, will require an understanding of the processes that can drive generational shifts. We therefore explore the developmental, demographic and environmental processes that could influence generational shifts in phenology and distribution, and the studies that will be needed to distinguish among these mechanisms of change.This article is part of the theme issue ‘Linking behaviour to dynamics of populations and communities: application of novel approaches in behavioural ecology to conservation’.

The importance of incorporating functional habitats into conservation planning for highly mobile species in dynamic systems.

The distribution of mobile species in dynamic systems can vary greatly over time and space. Estimating their population size and geographic range can be problematic and affect the accuracy of conservation assessments. Scarce data on mobile species and the resources they need can also limit the type of analytical approaches available to derive such estimates. We quantified change in availability and use of key ecological resources required for breeding for a critically endangered nomadic habitat specialist, the Swift Parrot (Lathamus discolor). We compared estimates of occupied habitat derived from dynamic presence-background (i.e., presence-only data) climatic models with estimates derived from dynamic occupancy models that included a direct measure of food availability. We then compared estimates that incorporate fine-resolution spatial data on the availability of key ecological resources (i.e., functional habitats) with more common approaches that focus on broader climatic suitability or vegetation cover (due to the absence of fine-resolution data). The occupancy models produced significantly (P < 0.001) smaller (up to an order of magnitude) and more spatially discrete estimates of the total occupied area than climate-based models. The spatial location and extent of the total area occupied with the occupancy models was highly variable between years (131 and 1498 km2 ). Estimates accounting for the area of functional habitats were significantly smaller (2-58% [SD 16]) than estimates based only on the total area occupied. An increase or decrease in the area of one functional habitat (foraging or nesting) did not necessarily correspond to an increase or decrease in the other. Thus, an increase in the extent of occupied area may not equate to improved habitat quality or function. We argue these patterns are typical for mobile resource specialists but often go unnoticed because of limited data over relevant spatial and temporal scales and lack of spatial data on the availability of key resources. Understanding changes in the relative availability of functional habitats is crucial to informing conservation planning and accurately assessing extinction risk for mobile resource specialists.

The Dynamics of Social Support Inequality: Maintenance Gaps by Socioeconomic Status and Race?

A vast literature demonstrates how personal networks mirror and reproduce broader patterns of social inequality. The availability of key resources through informal mechanisms is an important way that high-status Americans retain a host of social advantages. Largely absent from this account of social capital inequality, however, is an explicit temporal dimension. The current article addresses that gap by targeting the dynamic nature of personal networks. Specifically, we consider whether race/ethnicity and socioeconomic status (SES) are associated with how US adults’ resource-providing ties persist or vanish between two time points. Using panel data from the Portraits of American Life Study, we find that non-Whites and lower-SES Americans tend to receive useful advice and practical help from fewer close ties than do White and higher-SES adults, while Black Americans are especially likely to receive financial assistance from their network members. Models fail to indicate that non-Whites lose these resourceful ties at a disproportionate rate over time. On the other hand, we find that income has a robust association with the ability to retain ties initially providing advice and help. We interpret the latter findings as a temporal manifestation of network-based inequality. The maintenance gap between higher- and lower-SES Americans, we argue, can reinforce other social capital disparities by shaping dependable access to important resources and by altering their ability to effectively mobilize resources. Network maintenance is a concept that could be useful to researchers studying how social capital matters for a variety of instrumental and expressive outcomes.

Large size and high light do not lower the cost of reproduction for the Neotropical herb Goeppertia marantifolia

• Sexual reproduction is often associated with a cost in terms of reduced survival, growth, or future reproduction. It has been proposed that plant size and the environment (availability of key resources) can sometimes lower or even nullify the cost of reproduction.• We address this issue experimentally with the Neotropical herb Goeppertia marantifolia, by manipulating sexual reproductive effort and measuring the demographic performance of plants and of their clonal offspring, in the context of natural variation in light availability.• Plants in the high-reproductive-effort treatment grew less between seasons but did not differ in their probability of flowering the second season or in inflorescence size compared with plants in the low-effort treatment. Reproductive effort of parent plants influenced the leaf area of their clonal offspring. Plants that invested less in sexual reproduction produced clonal offspring that were initially larger than those produced by plants that invested more in reproduction. The magnitude of this effect was greater in parent plants that received two seasons of the manipulated reproductive effort than in those that received a single season. The trade-off between reproductive modes dampened with time, leading to smaller differences in clonal offspring leaf area between treatments over time.• We found evidence of a cost of reproduction and trade-offs between reproductive modes, although the magnitude of these costs was small. However, we found no evidence of lower costs of reproduction for larger plants or for plants in higher-light environments over our 2-yr study period.

Shrub expansion alters forest structure but has little impact on native mammal occurrence

AbstractThe expansion (or encroachment) of shrubs in forests and woodlands is generally considered a serious threat to biodiversity. The effects of shrub expansion on forest fauna, however, are poorly understood and likely to depend on the availability of key resources in shrub‐encroached forest. Coranderrk Bushland, like many conservation reserves in south‐eastern Australia, is considered threatened by the spread of an indigenous shrub. We investigated the associations between cover of Yarra burgan (Kunzea leptospermoides (Myrtaceae)), vegetation structure and the occurrence of terrestrial native mammals within the reserve, basing our predictions on prior knowledge of burgan growth habits and fauna habitat preferences. We quantified burgan cover and other potentially important habitat attributes using structure surveys, and used motion‐sensing cameras to detect terrestrial mammals. Dense burgan cover was associated with less grass, a sparser understorey, and more cryptogams, dead trees and coarse woody debris. However, there was no evidence that these changes negatively affected native mammals: burgan cover had little influence on the occurrence of any species except swamp wallabies (Wallabia bicolor), which occurred in all areas of the reserve but shifted from sites with high burgan cover during the day to sites with low cover at night. Our findings contrast with those from grassland shrub‐expansion studies, where fauna generally show strong responses to shrub cover. The effects of shrub expansion on forest fauna may be mitigated by the greater pre‐existing structural diversity in forests or the longer time required for structural changes to be fully realized. The large quantities of dead wood in areas with high shrub cover may also provide compensatory resources for small mammals, while the proximity to un‐encroached areas may enable large herbivores to move between dense shelter and forage. Shrub‐encroached forests clearly provide resources for some native fauna, and management strategies need to consider the potential impacts of shrub removal on these taxa.

Using a Campaign Approach Among Health Workers to Increase Access to Antiretroviral Therapy for Pregnant HIV-Infected Women in South Africa

In 2010, WHO guidelines modified eligibility criteria for persons living with HIV to start on lifelong antiretroviral therapy. Pregnant HIV-infected women were identified as a priority group. Yet, despite the availability of key resources and medications, antiretroviral treatment rates for pregnant women in South Africa remained low. A prospective, nonrandomized, controlled study to evaluate the impact of a campaign approach among health workers to improve referral and initiation rates of antiretroviral therapy for eligible pregnant HIV-infected women in 2 matched districts in KwaZulu-Natal Province. The average number of referrals of pregnant women for antiretroviral therapy increased from 79 per month (95% confidence interval [CI]: 69 to 89) at baseline to 188 per month (95% CI: 167 to 209) 6 months after the intervention (P < 0.001). Similarly, the number of pregnant women initiated on antiretroviral therapy increased from 21 per month (95% CI: 2 to 40) at baseline to 124 per month (95% CI: 108 to 140) after the intervention (P < 0.001). Unlike in the control district, where no improvements were seen, the intervention district showed a greater than 4-fold increase in women initiated on antiretroviral therapy. A targeted campaign among health workers can accelerate access to antiretroviral therapy for pregnant HIV-infected women.

Evaluation of how integrated HIV and TB programs are implemented in South Africa and the implications for rural-urban equity

In countries such as South Africa with a high prevalence of HIV and TB policy directives support program integration. Operational research suggests this is desirable, at least for increasing coverage of HIV and TB services, but warns that implementation models must take local health service infrastructure into account. A program evaluation of HIV and TB prevention and therapeutic services was performed at facility level in two purposefully selected districts in South Africa - one deep rural and an urban district - in order to describe integration and how it is implemented. Twenty-six rural and 146 urban public primary-care facilities were evaluated using secondary data generated from two large evaluations of HIV/TB/Sexually Transmitted Infections (STI) programs conducted in December 2008 and May 2009. The data collection tools consisted of a review of data in the routine health information system, a facility manager interview, a checklist for equipment and supplies, register reviews and a series of patient folder (health record) reviews. Data were collected on extent to which clients receive integrated services, as well as the quality of care, and the availability of key resources and system capacity to support quality care. Data were entered into MS Excel spreadsheets and proportions calculated for all indicators, and confidence intervals for proportions. Evidence of integration was found across two dimensions - disease programs and the prevention-therapeutic axis. Integration was enabled in both the rural and urban districts because HIV and TB services were co-located in the extensive network of general primary-care services. Smaller rural facilities did not always have staff trained in all the required services, nurses worked without the support of a doctor and supervision was weaker, threatening quality of care. In the rural district there were instances of clients receiving more integrated services. The quality of care in the TB program was high in both districts. In both the districts evaluated, integration across programs and the prevention-care-rehabilitation axis of services was achieved through co-location at primary-care level. Coupled with health system strengthening, this has the potential to improve access across the HIV/TB/STI cluster of services. The benefit is likely to be greater in rural areas. Quality of care was maintained in the long established TB programs in both settings.

Spring wheat response to timing of water deficit through sink and grain filling capacity

Water and nitrogen (N) availability are the main factors influencing crop growth globally. Poorly distributed or insufficient water for crop growth requirements decreases yields in drought-prone areas such as those with a Mediterranean type environment. Cereal grain yield is a complex trait of interrelated components: plants per unit land area, spikes per plant, spikelets per spike, grains per spikelet, and single grain weight (SGW). The effect of water limitation and timing on development of yield components was studied in detail at the spike level in spring wheat ( Triticum aestivum L.) cultivar Amaretto. An experiment with three watering treatments (control watering, CONT; drought prior to pollination, DR1 and terminal drought, DR2) was arranged in a large greenhouse (20 m × 30 m), with the use of standard field-trial machinery. Automated blackout curtains were used to control day length, which was set to correspond to that at 40°N. With watering treatments, two N application rates (60 and 120 kg N ha −1) were used to investigate the N effect and potential watering × N interaction on yield formation and realisation. The water deficit effect exceeded the effect of N on fertile floret and grain number and SGW. DR1 strongly reduced the number of fertile florets and grains, whereas terminal drought reduced the number of grains per spike. Resuming the watering at pollination markedly enhanced photosynthesis, and hence grain filling capacity, resulting in the highest SGW in DR1. Enhancement in availability of key resources was associated with reduced rate of fertile floret and grain abortion, which resulted in higher grain to fertile floret ratio in DR1. Spikelets in the mid-section of the spike dominated yield formation in all treatments. In DR1 this was especially emphasised as 53% of the grain yield was produced in spikelets 4–6, whereas in DR2 and CONT this was 45 and 41%, respectively. Grains in proximal position in the spikelets produced about 80% of the spike grain yield, the proportion being slightly higher in stressed plants and plants receiving 60 kg N. No marked N × water deficit treatment interaction occurred for any of the measured parameters.

A priori valuation of land use for the conservation of black rhinoceros ( Diceros bicornis)

The appropriateness of using carrying capacity (CC) estimates to indicate habitat utilisation for a particular species, and thus as a tool for conservation population planning, has been questioned. We argue individual fitness is driven by resource availability, and we therefore assume individuals select habitats with a higher quality, abundance, and availability of key resources. In the past such selection has been related to the CC of a habitat. We tested whether we can use CC estimates to indicate habitat selection by individuals using a selective forager, black rhinoceros Diceros bicornis, for which CC approaches underpin species conservation plans. We tested for correlation of individuals’ habitat selection with predicted CC values at three spatial scales of selection. Individual selection was not related to the value of the habitat according to our CC estimates for any of the three scales we tested at. We discuss how density-dependence, environmental variables, scale of selection, individual variation and intra- and inter-specific dynamics may have influenced these results. Following this, we question the use of a priori calculations of potential resource quality and abundance of habitats (CC estimates), which do not take into account the various factors that influence an animal’s selection of a habitat, as an indicator of species habitat selection. We raise caution regarding the use of such CC models to determine optimal population numbers for an area.

Comparison of bobuck (Trichosurus cunninghami) demography in two habitat types in the Strathbogie Ranges, Australia

AbstractThe demographic characteristics of populations are determined by the life‐history strategies of their constituent individuals. Habitat characteristics, such as the availability of key resources, shape life‐history strategies; thus habitat variation may result in intraspecific variability in demography. We studied two neighbouring populations of bobucks or mountain brushtail possums Trichosurus cunninghami within a fragmented forest system. One population occurred in a forest patch that was selectively logged in the last 40 years; the other occupied narrow strips of linear roadside remnant vegetation that have not been logged for at least 100 years. Many demographic parameters of the two populations were similar, and were consistent with those described previously for a bobuck population living in continuous forest. For example, both sexes were long‐lived (at least 12 years), but there were fewer males in the oldest age classes at both sites. Most females produced one young per year and reproduction was highly seasonal. Females in the oldest age classes produced young, but none of these survived to pouch emergence. There were also marked differences between our two study populations: the sex ratio of adults was equal at the forest site but female‐biased (1.7:1) at the roadside site. Forest males weighed significantly less than males at the roadside site and females at both sites. The peak of births occurred more than a month later at the roadside than at the forest site. The sex ratio of roadside offspring did not differ significantly from parity; however, the sex ratio of young at the forest site was significantly male‐biased (62% of young). This demographic variation may be explained by differences in habitat characteristics (particularly logging history); a detailed investigation of resource availability at the two sites is warranted. Our results highlight the importance of studying multiple populations when attempting to describe the population ecology of a species.

A Linear Goal-Programming Model for Public-Sector Project Selection

This paper outlines a generalized public-sector project selection model using linear goal programming and demonstrates its application using data from the energy-based sector in Trinidad and Tobago, a small developing country in the Caribbean. The decision maker's influence on the project portfolio selected is demonstrated by varying parameters, such as the priority structure and the level of availability of key resources. Goal programming emerges as a powerful tool available for use by public-sector planners in developing countries faced with the challenge of formulating an appropriate public-sector investment programme.