Udział polskich ziemian z Mińszczyzny w pracach rady nadzwyczajnej do spraw związanych z potrzebami gospodarki rolnej w Rosji w latach 1902-1903

The article presents an unknown period from the history of the Polish gentry from the Taken Lands at the beginning of the 20th century. It shows the participation of Polish landowners in the work of the Extraordinary Council for matters connected with the needs of agriculture in the Minsk guberniya in 1902-1903, the purpose of which was to describe the state of agriculture in Russia and to indicate ways of its modernization. The Polish landowners, gathered in the Minsk Agricultural Society, were the most active element among all members of the 9 discrits committees in the Minsk guberniya. For the first time since the fall of the January Uprising, they had the opportunity to show their organizational skills and substantive preparation for the discussion on the situation of agriculture in the Minsk guberniya.

A small step or a giant leap: Accounting for settlement delay and dispersal in restoration planning

Understanding larval duration and hence dispersal potential of the European oyster Ostrea edulis is crucial to inform restoration strategies. Laval duration has an obligatory period of maturity to pediveliger (when larvae are ready to settle), but also an unknown period until metamorphosis is triggered by a settlement cue. The extent to which larvae can prolong the pediveliger period and delay metamorphosis has not been studied. Here we show that O. edulis larvae can delay metamorphosis for a period of 11 days, while retaining the capability to settle in high proportions when presented with a suitable settlement cue. O. edulis larvae are likely to be able to delay metamorphosis even further, since 80% of larvae in the control treatment were still alive when the experiment was terminated at day 14. The results indicate the ability of O. edulis larvae to more than double pelagic duration and probably further delay metamorphosis. We discuss these findings in the context of larval mortality, and the importance of O. edulis’ larval settlement requirements for dispersal potential, recruitment success and connectivity of restoration sites.

Psycho-Social Well-Being of Young Learners During Emergency Remote Teaching

The COVID-19 pandemic, which started through the end of 2019 and which seems to continue for an unknown period of time, has had unprecedented effects that are not limited to health conditions only, but also include financial, sociological, and psychological consequences. This global pandemic forced schools and universities to close their doors, causing a large-scale educational disruption for a large number of learners worldwide. Despite the measures taken to compensate for education at all levels, there still is another concern for K-12 level learners' psycho-social well-being. This chapter elaborates some points that should be considered in case of emergency remote teaching applications in terms of enhancing psycho-social well-being of young learners.

Unusual presentation of acute compartment syndrome of the forearm and hand

A 49-year-old man was referred to orthopaedics with an acute onset of left forearm and hand swelling, widespread blisters and erythema after lying face down on the floor for an unknown period of time. He also presented with left wrist stiffness due to pain and clawing of the fingers and glove-type loss of sensation in the whole hand. Any attempt to straighten the fingers or extend the wrist exacerbated the pain. Symptoms deteriorated rapidly. Compartment syndrome was diagnosed and surgical fasciotomies of his left forearm and left hand were performed following multidisciplinary urgent discussions between plastic surgeons, microbiologists, anaesthetists and orthopaedic surgeons. The left forearm and left hand underwent extensive decompression and subsequent skin grafting and had good healing despite the initial skin presentation. The patient has made a satisfactory recovery and has required extensive hand physiotherapy and social care.

Recovering variable stars in large surveys: EAup Algol-type class in the Catalina Survey

ABSTRACT The discovery and characterization of Algol eclipsing binaries (EAs) provide an opportunity to contribute for a better picture of the structure and evolution of low-mass stars. However, the cadence of most current photometric surveys hinders the detection of EAs since the separation between observations is usually larger than the eclipse(s) duration and hence few measurements are found at the eclipses. Even when those objects are detected as variable, their periods can be missed if an appropriate oversampling factor is not used in the search tools. In this paper, we apply this approach to find the periods of stars catalogued in the Catalina Real-Time Transient Survey (CRTS) as EAs having unknown period (EAup). As a result, the periods of ${\sim} 56{\rm {per \, cent}}$ of them were determined. Eight objects were identified as low-mass binary systems and modelled with the Wilson & Devinney synthesis code combined with a Markov chain Monte Carlo optimization procedure. The computed masses and radii are in agreement with theoretical models and show no evidence of inflated radii. This paper is the first of a series aiming to identify suspected binary systems in large surveys.

Does the HR 6819 triple system contain a dormant black hole? Not necessarily

ABSTRACT A recent paper by Rivinius et al. proposed that HR 6819 is a triple system, with a distant Be star and a binary of 40-d orbit, composed of a B3 III giant and a dormant black hole (BH). We suggest that the evidence for this model is not conclusive. In an alternative model, the companion of the giant is by itself a short-period binary in, say, a ∼4-d orbit, consisting, for example, of two A0 stars. Each of the two A0 stars should contribute ${\sim}4{{\ \rm per cent}}$ of the total brightness of the system in the V band, and their spectral lines are moving due to their assumed orbital motion with an unknown period. Therefore, only a careful analysis of the observed spectra can exclude such a model. Before such an analysis is presented and upper limits for the depths of the hypothetical A0 star absorption lines are derived, the model of a hidden close pair is more probable than the BH model.

Design and optimization of a subunit vaccine targeting COVID-19 molecular shreds using an immunoinformatics framework

COVID-19 has been declared as a global health emergency and exposed the world to a deadly virus, which has dramatically changed the lives of humans for an unknown period of time.

Using Ambiguous Loss to Address Perceived Control During the COVID-19 Pandemic

The concepts of ambiguous loss and perceived control will be used to explore ways to embrace the unknown during COVID-19. By defining COVID-19 as an ambiguous loss, effective therapeutic interventions emerge that can guide clinicians in creating lasting change amidst widespread uncertainty. Four ambiguous loss interventions will be proposed to alleviate the distress of living in fearful semi-isolation for an unknown period of time. In paradoxically embracing uncertainty, clients can create new hope in the context of a global pandemic. New hope is the ideal outcome when coping with ambiguous loss. In literature on ambiguous loss, the concept of new hope has yet to be recognized as a form of second-order change.

New Uruk finds in NW Iran:

During 2007 archaeological survey of Little Zab River in Sardasht district in northwest Iran, six typical Uruk (Uruk-related) sites were brought to light. One of the important ones is Tepe Badamyar Rabat, with typical Bevelled Rim Bowls pottery that is considered as the first evidence of Uruk materials in northwest Iran. In addition to Rabat, the Uruk materials found in Tepe Baghi, Tepe Waliv, Tepe Molla Yousef, Tepe Lavin and Tepe Goman provide an opportunity for studying the one millennium gap between Hasanlu VIIIA (Pisdeli) and VIIC (Kura-Araxes) in the southern parts of Lake Urmia, which is seen as a key unknown period in the archaeology of NW Iran. The Uruk evidence found in the mentioned sites mainly belongs to the Middle and Late Uruk periods (3600/3500–3100 BC).

New Uruk finds in NW Iran:

During 2007 archaeological survey of Little Zab River in Sardasht district in northwest Iran, six typical Uruk (Uruk-related) sites were brought to light. One of the important ones is Tepe Badamyar Rabat, with typical Bevelled Rim Bowls pottery that is considered as the first evidence of Uruk materials in northwest Iran. In addition to Rabat, the Uruk materials found in Tepe Baghi, Tepe Waliv, Tepe Molla Yousef, Tepe Lavin and Tepe Goman provide an opportunity for studying the one millennium gap between Hasanlu VIIIA (Pisdeli) and VIIC (Kura-Araxes) in the southern parts of Lake Urmia, which is seen as a key unknown period in the archaeology of NW Iran. The Uruk evidence found in the mentioned sites mainly belongs to the Middle and Late Uruk periods (3600/3500–3100 BC).