Structural Compression and Admissible Interval Dynamics in Rolling Covariance Spectra: Evidence from the 2008 Financial Crisis Early warning signal research has predominantly focused on dynamical indicators such as rolling variance and lag-1 autocorrelation. Structural properties of multivariate covariance geometry — specific...

#EWS

Variance reacts late.

Structure moves first.

doi.org/10.5281/zeno... 🖖

Application is over its MailboxConcurrency limit TLDR A common error after migrating an app from EWS to Microsoft Graph is “Application is over its MailboxConcurrency limit”.

Application is over its MailboxConcurrency limit open.substack.com/pub/glenscal... #microsoftgraph #msexchange #ews #microsoft365 #MVPBuzz

Detectability is not guaranteed.
If the critical mode is misaligned with observation, signals become invisible.

#EWS
#CRTI 🖖

Geometry, Observability, and the Limits of Early Warning Signals in Complex Systems: A Dissertation Summary This dissertation summary presents a theoretical framework addressing a persistent limitation in the detection of critical transitions in complex systems. Classical early warning signals (EWS), such a...

Early warning signals don’t always fail because of noise …

sometimes they’re simply invisible.

A structural detectability limit: alignment determines what we can see. doi.org/10.5281/zeno... #ComplexSystems #EWS 🖖

Geometry, Observability, and the Limits of Early Warning Signals in Complex Systems: A Dissertation Summary This dissertation summary presents a theoretical framework addressing a persistent limitation in the detection of critical transitions in complex systems. Classical early warning signals (EWS), such a...

If early warning signals fail, is it really noise …

or the geometry of observation?

A dissertation summary shows: signals vanish when alignment is lost. doi.org/10.5281/zeno... #ComplexSystems #EWS #CriticalTransitions 🖖

Geometry-Driven Failure of Early Warning Signals: A Detectability Bound Under Projection Early warning signals (EWS) of critical transitions—such as rising variance and autocorrelation—are widely used to anticipate abrupt changes in complex systems. However, their empirical performance is...

If early warning signals fail, is it noise — or geometry?

A detectability bound shows: signals vanish when alignment is lost.

doi.org/10.5281/zenodo.19329813 #EWS #ComplexSystems 🖖

Geometry-Driven Failure of Early Warning Signals: A Detectability Bound Under Projection Early warning signals (EWS) of critical transitions—such as rising variance and autocorrelation—are widely used to anticipate abrupt changes in complex systems. However, their empirical performance is...

What if early warning signals don’t fail because of noise…

but because we observe systems from the wrong geometry?

… detectability bound showing that #EWS failure is a structural consequence of projection …

controlled by alignment & its rate of change, not data quality:
doi.org/10.5281/zeno... 🖖

Projection-Induced Determinism: A Geometric Constraint on the Observability of Early Warning Signals in Complex Systems This paper introduces Projection-Induced Determinism (PID) as a geometric framework for understanding the mechanism-dependent reliability of early warning signals (EWS) in complex dynamical systems.  ...

What if early warning signals don’t fail because the system hides its transition …

but because we observe it from the wrong dimension?

This paper shows that #EWS failure is a geometric observability constraint ( #PID), not a data problem: doi.org/10.5281/zeno... 🖖

Drift Curvature as a Structure-Sensitive Early Warning Signal: Discriminating Metastable Collapse from Continuous Bifurcations This study introduces drift curvature (κ) as a structure-sensitive early warning signal for collapse in complex systems. In contrast to classical indicators such as variance and lag-1 autocorrelation,...

Classical #EWS fail in noise-driven collapse.

Drift curvature (κ) detects it ~950 steps earlier …

without tuning.

doi.org/10.5281/zenodo.19320651 🖖

Bernd von Mallinckrodt & @vonmallinck... • jetzt Was wie #stabileSysteme erscheinen, ... kollabiert oft nicht durch Ereignisse ... sondern durch den stillen #VerlustAnFreiheitsgraden in ihrer Zustandsgeometrie. NeuesPreprint zeigt, warum klassische #EWS das übersehen ... und wie #CRTI strukturelle Fragilität sichtbar macht: doi.org/10.5281/zeno...🖖

Image Description (English, scientific): The image presents a minimalist, monochromatic depiction of a rendered in perspective projection. A solitary human figure stands on one of its noges, representing an embedded observer. The geometric structure appears locally consistent but is globally topologically inconsistent: the seemingly closed triangular form cannot exist in Euclidean three-dimensional space. The image is overlaid with a typographically emphasized statement ("This is not a perception error. It is system architecture."), which explicitly connects the visual paradox to a theoretical interpretation. The combined visual-textual composition functions as a metaphor for projection-induced distortions in complex systems: observable dynamics may appear coherent, while the underlying state-space geometry already exhibits structural constraints or inconsistencies. The figure symbolizes the epistemic limitation of an observer whose perception is constrained by the projection through which the system is accessed.🖖

Image Description (English, scientific): The image presents a minimalist, monochromatic depiction of a rendered in perspective projection. A solitary human figure stands on one of its noges, representing an embedded observer. The geometric structure appears locally consistent but is globally topologically inconsistent: the seemingly closed triangular form cannot exist in Euclidean three-dimensional space. The image is overlaid with a typographically emphasized statement ("This is not a perception error. It is system architecture."), which explicitly connects the visual paradox to a theoretical interpretation. The combined visual-textual composition functions as a metaphor for projection-induced distortions in complex systems: observable dynamics may appear coherent, while the underlying state-space geometry already exhibits structural constraints or inconsistencies. The figure symbolizes the epistemic limitation of an observer whose perception is constrained by the projection through which the system is accessed.🖖

What appears as #StableSystems
often does not collapse through events …

but through the silent loss
of degrees of freedom in state-space geometry.

My preprint shows why classical #EWS miss this …

and how #CRTI makes structural fragility visible:

→ Preprint: doi.org/10.5281/zenodo.19313045 🖖

Bildbeschreibung (Deutsch, wissenschaftlich): Die Abbildung zeigt eine minimalistische, monochrome Darstellung eines in perspektivischer Projektion. Auf einer der Kanten steht eine einzelne menschliche Figur, die als eingebetteter Beobachter interpretiert werden kann. Die geometrische Struktur ist lokal konsistent, jedoch global topologisch inkonsistent: Die scheinbar geschlossene Dreiecksform ist in einem euklidischen dreidimensionalen Raum nicht realisierbar. Überlagert wird die Darstellung durch einen typografisch hervorgehobenen Text („Das ist kein Wahrnehmungsfehler. Es ist System-architektur."), der die visuelle Paradoxie explizit in einen theoretischen Kontext überführt. Die Kombination aus Bild und Text fungiert als Metapher für projektionsinduzierte Verzerrungen in komplexen Systemen: Während die beobachtbare Dynamik kohärent erscheint, kann die zugrunde liegende Zustandsgeometrie strukturelle Einschränkungen oder Inkonsistenzen aufweisen. Die Figur symbolisiert dabei die epistemische Begrenzung eines Beobachters, dessen Wahrnehmung durch die gewählte Projektion bestimmt ist.🖖

Bildbeschreibung (Deutsch, wissenschaftlich): Die Abbildung zeigt eine minimalistische, monochrome Darstellung eines in perspektivischer Projektion. Auf einer der Kanten steht eine einzelne menschliche Figur, die als eingebetteter Beobachter interpretiert werden kann. Die geometrische Struktur ist lokal konsistent, jedoch global topologisch inkonsistent: Die scheinbar geschlossene Dreiecksform ist in einem euklidischen dreidimensionalen Raum nicht realisierbar. Überlagert wird die Darstellung durch einen typografisch hervorgehobenen Text („Das ist kein Wahrnehmungsfehler. Es ist System-architektur."), der die visuelle Paradoxie explizit in einen theoretischen Kontext überführt. Die Kombination aus Bild und Text fungiert als Metapher für projektionsinduzierte Verzerrungen in komplexen Systemen: Während die beobachtbare Dynamik kohärent erscheint, kann die zugrunde liegende Zustandsgeometrie strukturelle Einschränkungen oder Inkonsistenzen aufweisen. Die Figur symbolisiert dabei die epistemische Begrenzung eines Beobachters, dessen Wahrnehmung durch die gewählte Projektion bestimmt ist.🖖

Image Description (English, scientific): The image presents a minimalist, monochromatic depiction of a rendered in perspective projection. A solitary human figure stands on one of its noges, representing an embedded observer. The geometric structure appears locally consistent but is globally topologically inconsistent: the seemingly closed triangular form cannot exist in Euclidean three-dimensional space. The image is overlaid with a typographically emphasized statement ("This is not a perception error. It is system architecture."), which explicitly connects the visual paradox to a theoretical interpretation. The combined visual-textual composition functions as a metaphor for projection-induced distortions in complex systems: observable dynamics may appear coherent, while the underlying state-space geometry already exhibits structural constraints or inconsistencies. The figure symbolizes the epistemic limitation of an observer whose perception is constrained by the projection through which the system is accessed.🖖

Was wie #stabileSysteme erscheinen, …

kollabiert oft nicht durch Ereignisse …

sondern durch den stillen #VerlustAnFreiheitsgraden in ihrer Zustandsgeometrie.

NeuesPreprint zeigt, warum klassische #EWS das übersehen …

und wie #CRTI strukturelle Fragilität sichtbar macht: doi.org/10.5281/zeno... 🖖

Projection-Induced Determinism: A Formal Epistemic Constraint on Early Warning Signals in Complex Systems This preprint introduces Projection-Induced Determinism (PID) as a formal epistemic mechanism affecting collapse detection in complex systems. Existing early warning signal (EWS) frameworks—particular...

I show that early warning signals #EWS can reverse under projection …

not because systems stabilize, but because observation distorts dynamics.

Projection-Induced Determinism defines when collapse becomes invisible (or inverted) to the observer:

#CRTI
#PID

doi.org/10.5281/zeno... 🖖

The Compression–Response Thermodynamic Index (CRTI): A Structural Diagnostic Framework for Complex System Collapse — Overview, Synthesis, and Research Roadmap This document provides an overview and synthesis of the Compression–Response Thermodynamic Index (CRTI), a structural diagnostic framework for analyzing collapse dynamics in complex systems. It is not...

New overview preprint:
doi.org/10.5281/zeno...

#CRTI does not outperform classical EWS in linear systems …

and that’s the point.

#EWS measure amplitude.
#CRTI measures structure.

Different mechanisms → different validity.🖖

The Customs Anti-Narcotic Unit (CANU), through the Guyana Early Warning System (EWS), has issued a national alert following the seizure of 222 cans of suspected THC-infused beverages at the Cheddi Jagan International Airport on Wednesday.

#IgniteNews #Guyana #CANU #EWS #IllegalSubstance

Mechanism-Dependent Performance of Early Warning Signals for Critical Transitions: A Comparative Analysis This study evaluates the performance of early warning signals (EWS) for critical transitions across mechanistically distinct collapse scenarios. While commonly used indicators such as lag-1 autocorrel...

Early warning signals #EWS are not universal …

they are mechanism-dependent.

In a new preprint, I compare AR1, Fisher Information, Φ, and #CRTI-2 across distinct collapse dynamics …

and show that each indicator works only under specific conditions.

doi.org/10.5281/zeno... 🖖

F Words for Warning Reactions | UCL Warning Research Centre UCL Homepage

"F Words for Warning Reactions"
blogs.ucl.ac.uk/warning-rese...

#EWS #WarningSystems #Warning #Warnings #DRR #DisasterRiskReduction #DisasterWarning #EarlyWarning #EarlyWarningSystems

Notes From the Field: Finding and Remediating EWS App Usage Before Retirement | Microsoft Community Hub We wanted to share some tips on how to find out details of EWS usage in your tenant.  

Notes From the Field: Finding and Remediating EWS App Usage Before Retirement

techcommunity.microsoft.com/blog/exchang...

#MSExchange #EWS #AppUsage

Still holding to its original EWS colours, DB 66151 brings the steel empties from Lackenby through York with 6D37, heading onward to Scunthorpe.
#Class66 #Shed #York #EWS #DB

Das Ende von Exchange Web Services: Umstellung auf Graph Das Ende von Exchange Web Services bringt wichtige Änderungen für Microsoft 365 mit sich. Sehen Sie, wie Sie sich darauf vorbereiten können.

Microsoft beendet Exchange Web Services: Was Unternehmen jetzt wissen müssen - Bis April 2027 stellt Microsoft sein Exchange Web Services-Protokoll vollständig ein.
www.all-about-security.de/microsoft-be...
#microsoft #ews

Exchange Online EWS is dying, here is what IT admins can do to prepare Microsoft has reminded IT admins that the "time is almost up" for Exchange Online EWS, and "scream tests" are on the way.

Microsoft has reminded IT admins that the "time is almost up" for Exchange Online EWS, and "scream tests" are on the way. #ExchangeOnline #EWS

Exchange Online EWS, Your Time is Almost Up | Microsoft Community Hub We wanted to provide an update on Exchange Online EWS deprecation.  

Exchange Web Services (EWS) is approaching end of service in Exchange Online and will be disabled starting in October 2026, with a complete shutdown in mid-2027. This is Exchange Online only--no changes to EWS in Exchange Server.

#EWS #ExchangeOnline

techcommunity.microsoft.com/blog/exchang...

Even EWS students left without protection under UGC rules: IIM Professors Udaipur (Rajasthan), Jan 31 (SocialNews.XYZ) The University Grants Commission’s (UGC) 2026 regulations aimed at “promoting equity” in higher education have come under sustained academic scrutiny, not only for their alleged vagueness but also for deep 'internal inconsistencies' that 'risk excluding' the very groups they claim to protect. An essay authored by IIM Udaipur professors Kunal Kamal Kumar and Gyanesh Raj argues that the regulations suffer from a serious lack of coherence -- particularly in their treatment of the Economically Weaker Sections (EWS).

Even EWS students left without protection under UGC rules: IIM Professors #EWS #UGC #IIMProfessors #socialnewsxyz

"We are able to connect research, policy principles & lived realities."

Joel B. Kyndiah of Youth for Meghna Network highlights the role of youth in bridging gaps in #EWS in the Meghan river basin:
🔹Data & evidence collection
🔹Policy support
🔹Community engagement & advocacy

Some more details at doi.org/10.1016/j.is... along with practicalities and examples.

#EWS #WarningSystems #Warning #Warnings #DRR #DisasterRiskReduction #DisasterWarning #EarlyWarning #EarlyWarningSystems #DRM #DisasterRiskManagement #DisasterRisk

Very much looking forward to this! We’ve got some amazing writers coming, plus it’s an inspiring community of folk. #ews #madrid #creativewriting

Value Yes, Chain No: Warnings Beyond Linearity | UCL Warning Research Centre UCL Homepage

"Value Yes, Chain No: Warnings Beyond Linearity"
blogs.ucl.ac.uk/warning-rese...
@uclwrc.bsky.social @uclrdr.bsky.social @uclglobalhealth.bsky.social

#EWS #WarningSystems #Warning #DRR #DisasterRiskReduction #DisasterWarning #EarlyWarning #EarlyWarningSystems

Integrative multi-omics reveals PARP14 as a key IFNγ-regulated mediator of metastatic progression in Ewing sarcoma Metastatic Ewing sarcoma (EwS) remains a major clinical challenge, highlighting the need to identify molecular drivers of disease dissemination. Through integrated transcriptomic, functional, and mech...

🎄 A small Christmas gift from our lab! 🎁

We’re excited to share our new preprint on bioRxiv identifying PARP14 as a key regulator of metastatic progression in Ewing sarcoma.

👉 www.biorxiv.org/content/10.6...

#preprint #EwingSarcoma #EwS #metastasis #PARP14

Original post on mastodon.social

Hat jemensch Interesse an einen Wechsel zu #EWS Elektrizitaetswerke Schoenau - Die Oekostromrebellen ?

Gibt eine Praemie von je 25 Euro fuer Wechselnde und den Werber, d.h. hier mich.

Und es lohnt sich dahingehend als das ein bewusstes Unternehmen faire Preise deutschlandweit anbietet: 13,90 […]

#SG1 #DRR #HIGRID #naturalhazards #EWS #earlywarningsystems #HKH #naturaldisaster # HKHDRRHub #DisasterRiskReduction #MultiHazardRisks #RiskInformedInvestment #EW4All #CascadingRisks #CommunityResilience #ClimateRisk

Register now: forms.office.com/pages/respon...

#SG1 #DRR #HIGRID #naturalhazards #EWS #earlywarningsystems #HKH #naturaldisaster #HKHDRRHub #DisasterRiskReduction #MultiHazardRisks #RiskInformedInvestment #EW4All #CascadingRisks #CommunityResilience #ClimateRisk